Api mpms 19 4 2012 (american petroleum institute)

Manual of Petroleum
Measurement Standards
Chapter 19.4
Evaporative Loss Reference Information and
Speciation Methodology
THIRD EDITION, OCTOBER 2012

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Manual of Petroleum
Measurement Standards
Chapter 19.4
Evaporative Loss Reference Information and
Speciation Methodology

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Measurement Coordination
THIRD EDITION, OCTOBER 2012

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Summary of Changes to API MPMS Chapters 19.1, 19.2 and 19.4
The third edition of API Manual of Petroleum Measurement Standards (MPMS) Chapter 19.4 was published following

a revision that was carried out concurrently with revisions to Chapter 19.1, published as the fourth edition, and
Chapter 19.2, published as the third edition. Primary changes are:
1) Consolidation of common material in Chapter 19.4. Material that had previously been included in both Chapters
19.1 and 19.2 has been moved to Chapter 19.4. Chapter 19.4, which was previously Recommended Practice for
Speciation of Evaporative Losses, now has the title Evaporative Loss Reference Information and Speciation
Methodology. This Chapter had already contained reference information on the properties of chemicals and
typical petroleum liquids, and this information has now been removed from Chapters 19.1 and 19.2. In addition,
meteorological data have been moved from Chapters 19.1 and 19.2 to Chapter 19.4. In the revised documents:
a) Meteorological data are found in Chapter 19.4,
b) Calculation of storage tank temperatures is found in Chapters 19.1 and 19.2 (in that fixed-roof tanks involve
calculation of the vapor space temperature in order to determine vapor density, whereas this step is not
involved in estimating emissions from floating-roof tanks), and
c) Calculation of true vapor pressure is found in Chapter 19.4 (in that this is now calculated in the same manner
for both fixed- and floating-roof tanks).
2) Reconciliation of nomenclature. Chapters 19.1 and 19.2 previously had different nomenclature for the same
variables. These revisions adopt a common set of symbols for both chapters.
3) Reorganization of the formats. In addition to common material having been removed from Chapters 19.1 and 19.2,
the remaining text has been edited to remove unnecessarily verbose or repetitive language. The summary tables
were deemed redundant, and have been deleted.
4) Appendices. Appendices have been redesignated as annexes.
5) SI units. An annex has been added to each chapter to address SI units.

Chapter 19.4, third edition
In addition to common reference material being moved to Chapter 19.4, the following changes have been made:
1) Solar absorptance factors. The former designations of Good and Poor have been replaced with the designations
New and Aged, and a new category designated Average has been introduced.
2) Alternative methodology for calculating storage tank temperatures. An API study of storage tank temperatures
concluded that a more sophisticated model for estimating storage tank temperatures has relatively little impact on
estimated emissions, and thus the methodology now presented in Chapters 19.1 and 19.2 is the same as
previously appeared in Chapter 19.1 (and in EPA AP-42). However, a more sophisticated model has been added

as Annex I in Chapter 19.4.
3) No. 6 Fuel Oil. The default properties for No. 6 Fuel Oil have been revised, resulting in a significant increase in the
estimated true vapor pressure. The former default properties are now presented as being suitable for vacuum
residual oil. A new default speciation profile has also been added for No. 6 Fuel Oil. The study on which these
changes are based has been added as Annex G.
4) Maxwell-Bonnell correlations. The annex presenting the Maxwell-Bonnell correlations has been edited with the
conclusion that the separate correlations for predicting the normal boiling point from distillation data are not
reliable.
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Contents
Page

1

Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

2

Normative References. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

3

Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

4
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8

Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Meteorological Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Stock True Vapor Pressure PV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
o
Component Saturated Vapor Pressure P i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Stock Liquid Molecular Weight ML . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Stock Vapor Molecular Weight MV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Component Molecular Weight Mi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Concentrations for Selected Compounds in Petroleum Liquids. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Tank Solar Absorptance α . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5
5.1
5.2

Speciation Methods. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Speciation Based on Liquid Profiles. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Speciation Based on Vapor Profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

6

Speciation Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

7
7.1
7.2
7.3
7.4

Speciation Theory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Raoult’s Law. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Precision, Accuracy, and Variability of Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Common Mistakes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

45
45

46
47
49

Annex A (informative) Validity of Raoult’s Law . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Annex B (informative) Vapor Pressure by Antoine’s Equation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
Annex C (informative) Comparison of Molecular Weight, Normal Boiling Point, and Blending RVP
for Selected Hydrocarbons and Oxygenates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
Annex D (informative) Vapor Pressure by Maxwell-Bonnell Correlations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Annex E (informative) Vapor Pressure by the HOST Test Method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Annex F (informative) EPA Categories of POM/PACs/PAHs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Annex G (informative) Properties of Heavy Fuel Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Annex H (informative) Derivations of Speciation Equations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Annex I (informative) Storage Tank Liquid Bulk, Liquid Surface, and Vapor Space Temperatures . . . . . . . . 100
Annex J (informative) SI Units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Bibliography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
Figures
C.1 Normal Boiling Point (NBP) Versus Molecular Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
C.2 Pure Substance Vapor Pressure at 100°F Versus Molecular Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
I.1 Heat Transfer Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
I.2 Insolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
I.3 Bulk Temperature vs. Time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

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Contents
Page

Tables
1
Meteorological Data for Selected U.S. Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Typical Properties of Selected Petroleum Liquids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
3
Properties of Selected Petrochemicals. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4
Concentrations (weight percent) of Selected Components in Selected Petroleum Liquids . . . . . . . . . . 37
5
Concentrations (weight percent) of Selected Components in No. 6 Fuel Oil. . . . . . . . . . . . . . . . . . . . . . . 37
6
Concentrations of PAHs in Selected Petroleum Liquids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7
Solar Absorptance α for Selected Tank Surfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
8
Vapor Profile for Simulated Gasoline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
9
Speciation Example Worksheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
10 Speciation Example Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
A.1 Summary of Results for Summer Blend Unleaded Gasoline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
A.2 Summary of Results for Winter Blend Unleaded Gasoline. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
A.3 Compounds Selected for Speciation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

A.4 GC Analysis Concentrations Using Average Response Factors (ARF) and Linear Regression (LR)
for Liquid Phase Samples (Concentrations in μg/mL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
A.5 GC Analysis Concentrations Using Average Response Factors (ARF) and Linear Regression (LR)
for Vapor Phase Samples (Concentrations in μg/mL). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
A.6 Comparision of Predicted Vapor Concentrations Using the Response Factor Analytical Data . . . . . . . 54
A.7 Comparision of Predicted Vapor Concentrations Using the Linear Regression Analytical Data . . . . . . 54
B.1 Variables in Antoine’s Equation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
C.1 Molecular Weight, Normal Boiling Point, and Blending RVP for Selected
Hydrocarbons and Oxygenates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
G.1 No. 6 Fuel Oil – True Vapor Pressure (psia) versus Temperature (°F). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
G.2 No. 6 Fuel Oil – True Vapor Pressure (psia) versus Temperature (°F). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
G.3 Vacuum Residual Oil – True Vapor Pressure (psia) versus Temperature (°F) . . . . . . . . . . . . . . . . . . . . . . 86
G.4 No. 6 Fuel Oil Liquid Phase Speciation Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
G.5 No. 6 Fuel Oil Liquid Phase Speciation Profile – Metals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
G.6 No. 6 Fuel Oil Liquid Phase Speciation Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
G.7 Key to Sample IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
G.8 No. 6 Fuel Oil Vapor Pressure by Isoteniscope (ASTM D2879) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
G.9 Cutter Stock Vapor Pressure by Isoteniscope (ASTM D2879) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
G.10 Vacuum Residual Vapor Pressure by Isoteniscope (ASTM D2879). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
G.11 Vapor Pressure by HOST Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
G.12 API Gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
G.13 Metal Concentrations (ppmw) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
G.14 Organic Compounds Concentrations (ppmw) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
I.1 Difference Between Bulk and Ambient Temperatures: TB – TA (°F). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
I.2 Difference Between Equilibrium Bulk Temperature TBE and Ambient Temperature TA (°F). . . . . . . . . . 120
I.3 Difference Between Liquid Surface Temperature and Ambient Temperature (°F). . . . . . . . . . . . . . . . . . 126
I.4 Liquid Surface Temperature TL (°F). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
I.5 Effect on Emissions for Fixed Roof Tanks – Vapor Pressure PV (psia) . . . . . . . . . . . . . . . . . . . . . . . . . . 127
I.6 Effect on Emissions for Floating Roof Tanks: Vapor Pressure Function P* . . . . . . . . . . . . . . . . . . . . . . 127
I.7 Effect on Emissions for Floating Roof Tanks: Vapor Pressure Function P* % Difference. . . . . . . . . . . 127

I.8 Effect on Emission Estimates: Good (α = 0.17) vs. Average (α = 0.25) Solar Absorptance . . . . . . . . . . 128
I.9 Conductance c (Btu/(hr °F ft2)) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
I.10 Fraction of Insolation Transmitted f . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129

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Chapter 19.4—Evaporative Loss Reference Information and Speciation
Methodology
1 Scope

Speciation of emissions from hydrocarbon mixtures accounts for the higher evaporation rate of the more
volatile components, resulting in a different composition of the mixture in the vapor phase than in the liquid
phase. The methodology presented in this standard assumes that there is sufficient liquid present such that
the chemical composition at the liquid surface may be considered to not change as a result of the
evaporative loss.
This standard also contains reference information used for estimating emissions in accordance with API
MPMS Ch. 19.1, API MPMS Ch.19.2, and API MPMS Ch.19.5.
The methodology in this standard applies to:
a) liquids with vapor pressure that has reached equilibrium with ambient conditions at a true vapor pressure
less than the ambient atmospheric pressure (i.e. not boiling);
b) liquids for which the vapor pressure is known or for which sufficient data are available to determine the
vapor pressure;
c) liquid mixtures where Raoult’s Law can be used to describe the vapor phase equilibria.

This methodology does not apply to:
a) emissions that result from leaks from piping components (e.g. valves, flanges, pumps, connectors etc.);
b) liquid mixtures where Raoult’s Law cannot be used to describe the vapor phase equilibria (e.g. mixtures
in which hydrocarbons are dissolved in water, or mixtures of hydrocarbons with alcohols).

2 Normative References
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
API Manual of Petroleum Measurement Standards (MPMS) Chapter 19.1, Evaporative Loss from Fixed-Roof
Tanks, 4th Edition, 2012.
API MPMS Chapter 19.2 Evaporative Loss from Floating-Roof Tanks, 3rd Edition, 2012.
API MPMS Chapter 19.5 Atmospheric Hydrocarbon Emissions from Marine Vessel Transfer Operations, 1st
Edition, September 2009.

Copyright American Petroleum Institute
Provided by IHS under license with API
No reproduction or networking permitted without license from IHS

1
Not for Resale

--`,,```,,,,````-`-`,,`,,`,`,,`---

This standard provides methodology to estimate emissions of individual hydrocarbon species using the total
emissions of multicomponent hydrocarbon mixtures (such as crude oils and gasoline) estimated from API
MPMS Ch. 19.1 for fixed-roof tanks, API MPMS Ch. 19.2 for floating-roof tanks, API MPMS Ch. 19.5 for
marine vessels, and other methods used for total hydrocarbon emission estimates. This process is referred
to as speciation.

2

API MPMS CHAPTER 19.4

3 Symbols

--`,,```,,,,````-`-`,,`,,`,`,,`---

Symbol
A
B
C
Hi
I
Ki
Li
Lt
Mi
ML
MV
PA
Pi
Pio
PT
PV
RVP
S
TLA
TMAX

TMIN
V
wi
WL
WVC
xi
yi
zi
α
αR
αS

Description
vapor pressure constant
vapor pressure constant
vapor pressure constant
Henry’s law constant for component i
daily total insolation on a horizontal surface
vapor-liquid equilibrium constant of component i
emissions of component i
total emissions of all components
molecular weight of component i
stock liquid molecular weight
stock vapor molecular weight
atmospheric pressure at the tank site
partial pressure of component i in the vapor
saturated vapor pressure of component i
total system pressure
stock true vapor pressure
stock Reid vapor pressure

stock ASTM D86 distillation slope at 10 volume % evaporated
daily average liquid surface temperature
maximum ambient temperature
minimum ambient temperature
average ambient wind speed at the tank site
weight fraction of component i in the liquid
density of stock liquid
density of condensed stock vapor
mole fraction of component i in the liquid
mole fraction of component i in the vapor
weight fraction of component i in the vapor
tank surface solar absorptance
tank roof surface solar absorptance
tank shell surface solar absorptance

Units
dimensionless
°C or °R
°C or °R
psia
Btu/(ft2 day)
dimensionless
lb
lb
lb/lb-mole
lb/lb-mole
lb/lb-mole
psia
psia
psia

psia
psia
psi
°F/vol. %
°R
°F
°F
mi/hr
dimensionless
lb/gal
lb/gal
dimensionless
dimensionless
dimensionless
dimensionless
dimensionless
dimensionless

Source
Table 2, 3
Table 2, 3
Table 3
7.3.4.2
Table 1
7.2
5.1.3
User
Ref. [35]
Table 2, 3
Table 2, 3

User
5.1.3
4.3
User
4.2
User
Table 2
19.1, 19.2
Table 1
Table 1
Table 1
4.7
Table 2, 3
Table 2
5.1.3
5.1.3
5.1.3
Table 7
Table 7
Table 7

NOTE 1 “19.1” and “19.2” refers to API MPMS Ch. 19.1 and API MPMS Ch.19.2 respectively.
NOTE 2 Symbols used in Annex I are listed in Section I.1.

4 Variables
4.1

Meteorological Data

Meteorological data may be used to determine vapor space, liquid bulk, and liquid surface temperatures for

storage tanks and can be obtained from local weather records or from historical averages given in Table 1.
Data for this table are 30-year averages for the years 1961 through 1990, and are available at
/>API MPMS Ch. 19.1 provides methods for determining tank temperatures for fixed-roof tanks. API MPMS
Ch. 19.2 provides methods for determining tank temperatures for floating-roof tanks. Annex I of this standard
documents these methods.

Copyright American Petroleum Institute
Provided by IHS under license with API
No reproduction or networking permitted without license from IHS

Not for Resale


EVAPORATIVE LOSS REFERENCE INFORMATION AND SPECIATION METHODOLOGY

3

Table 1—Meteorological Data for Selected U.S. Locations
Location
Birmingham, AL

Huntsville, AL

--`,,```,,,,````-`-`,,`,,`,`,,`---

Mobile, AL

Montgomery, AL

Anchorage, AK

Annette, AK

Barrow, AK

Bethel, AK

Bettles, AK

Big Delta, AK

Symbol
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V

I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V

I
PA

Copyright American Petroleum Institute
Provided by IHS under license with API
No reproduction or networking permitted without license from IHS

Units
°F
°F
mi/hr
2

Btu/ft /day
lb/in
°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

8.4
21.4
6.5
95

11.5
25.9
6.9
317

18.1 28.6 38.8 47.1 51.6 49.5
33.1 42.8 54.3 61.5 65.1 63.0
6.7
7.4
8.3
8.5
7.2
6.9
729 1141 1458 1554 1458 1110

41.5
55.2
6.7
698

29.7
38.8

11.0
190

32.2
41.9
11.2
380

34.0 37.0 42.3 47.8 52.0 52.3
44.8 49.5 55.8 60.8 64.6 64.9
9.8
9.8
8.5
8.3
7.6
7.6
698 1110 1490 1585 1554 1268

48.0
60.3
8.3
856

–19.3 –23.6 –21.1 –9.0
–7.4 –11.7 –9.0 4.6
12.3 11.2 11.4 11.6
0
95
507 1173

14.4
24.3
11.9
1490

29.7
38.3
11.9
1554

33.6
45.0
11.6
1427

33.3
42.3
12.5
824

27.0
33.8
13.4
412

0.3
12.9
14.5
127

31.6
48.2
11.6
1427

42.3
58.8
11.2
1522

47.7 46.2
62.2 59.5
10.7 11.0
1363 1015

38.3
52.0
11.6
698

–20.4 –18.2 –8.7 9.7 33.4 46.9 49.3 43.9
–4.9 0.3 14.4 31.5 52.9 67.5 69.6 62.8
6.0
6.3
7.2
7.6
7.6
7.2
6.7
6.0

32
190 634 1236 1680 1807 1585 1110

32.4
48.9
6.7
666

–11.0 –6.2
3.0 10.6
12.1 10.5
63
254

35.8
53.2
8.5
761

–0.8
12.7
15.2
349

5.4 15.6
21.0 31.3
14.1 13.0
793 1236

2

°F
°F
mi/hr
2

Btu/ft /day
lb/in

38.8 45.7 52.9 60.8 67.8 71.4 70.9 66.0
60.8 68.5 76.5 82.9 89.4 91.0 90.3 87.1
8.1
8.3
7.4
6.0
5.6
5.6
5.1
5.8
1110 1427 1807 1966 2029 1934 1807 1554

2

°F

lb/in

35.8
56.3
7.6

856

57.0 64.4 70.7 73.2 72.9 68.7
78.4 84.6 90.0 91.2 90.5 86.9
10.3 8.7
7.6
6.7
6.5
7.6
1712 1871 1871 1775 1649 1490

2

°F

lb/in

42.6 50.2
63.7 70.9
10.5 10.5
1110 1395

2

°F

lb/in

39.9
59.7

10.1
856

40.8 48.9 57.4 64.9 68.9 67.8 61.5
62.8 72.5 79.3 86.5 89.1 88.9 82.8
10.1 9.4
7.8
6.7
6.3
6.0
6.9
1300 1680 1871 1997 1934 1807 1490

2

°F

lb/in

32.5
53.4
9.8
983

2

°F

lb/in

29.1
48.2
9.2
761

2

°F

lb/in

Jun Jul Aug Sep Oct Nov Dec
65.1 69.4 68.7 63.0 50.2 41.5 34.9
87.4 90.0 89.1 83.8 74.7 64.6 55.8
5.8
5.6
5.4
6.3
6.0 6.7
7.4
1966 1871 1775 1522 1268 888 729

2

°F

lb/in

Feb Mar Apr May
34.5 42.3 49.3 57.7

56.8 66.0 74.7 81.0
8.5
8.5
8.1
6.7
1046 1395 1744 1902

2

°F

lb/in

Jan
31.3
51.6
7.6
793

2.5 20.5 36.9 47.1 50.7 46.0
24.4 40.3 56.7 66.4 69.6 64.8
9.2
8.5
8.5
7.8
6.5
7.2
729 1236 1617 1744 1649 1236

2

Not for Resale

Annual
50.7
73.0
6.9
1395
14.45
49.3 40.5 33.1
49.6
73.0 62.4 52.5
71.1
7.4 8.5
9.4
8.1
1236 856 666
1395
14.43
57.4 49.1 43.2
57.4
79.5 70.3 63.0
77.4
8.1 9.2
9.8
8.7
1332 983 793
1395
14.65
53.2 44.6 38.7

54.0
78.3 68.7 60.3
75.7
5.6 6.5
7.4
6.7
1332 951 793
1458
14.66
28.8 15.1 10.0
29.1
40.5 27.1 22.5
42.6
6.7 6.5
6.3
6.9
349 127
63
761
14.56
41.9 34.7 31.5
40.3
51.8 43.9 39.9
51.4
10.7 11.2 10.7
9.4
444 222 159
824
14.63
8.8 –6.9 –17.1

4.1
18.1 3.6 –5.3
14.7
13.0 12.5 11.6
12.1
159
0
0
634
14.74
23.7 10.9 2.1
21.9
35.1 22.6 14.7
36.0
12.5 13.2 14.3
12.8
380 159
63
761
14.55
12.0 –8.9 –16.8
12.9
25.0 5.2 –1.8
30.9
6.7 6.0
5.6
6.7
254 63
0
761

14.33
17.8 –1.7 –8.5
19.2
31.3 12.7 5.4
36.5
8.7 10.3 11.6
9.2
349 95
32
824
13.97


4

Location
Cold Bay, AK

Fairbanks, AK

Gulkana, AK

King Salmon, AK

Kodiak, AK

Kotzebue, AK

McGrath, AK

Nome, AK

St. Paul Island, AK

Talkeetna, AK

API MPMS CHAPTER 19.4

Symbol
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN

TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA

Units
°F
°F
mi/hr
2

Btu/ft /day
lb/in
°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

36.1
54.9
6.3
729

–13.9 –7.1
2.5 13.6
3.6
4.9
95
317

2.7 19.9 32.5 42.3 46.4 42.3
28.0 41.5 54.9 64.2 68.4 64.8
6.0
7.6
8.3
8.5
7.6
7.8
793 1300 1617 1744 1680 1300

33.4
54.1
7.2
824

7.5
22.1
11.0
159

6.6
22.8

11.4
380

14.2 23.4
30.7 39.0
11.4 11.2
761 1141

34.0
50.9
11.2
1395

46.4 46.4
63.0 61.3
10.1 10.5
1363 1078

39.7
54.7
10.5
729

24.6
35.1
12.3
159

25.0
36.1

12.3
349

27.0 31.5
38.8 43.7
11.9 11.6
729 1110

37.6 43.5 48.2 48.4
49.5 55.6 60.4 61.9
10.3 9.2
7.6
8.1
1363 1458 1427 1205

43.3
56.7
9.2
793

24.4
37.9
11.6
1744

48.6 47.3
59.2 57.0
12.5 12.5
1522 1046

37.0
46.9
13.4
634

–17.9 –14.3 –2.9 16.0 34.5 45.1 48.9 45.0
0.3
9.0 23.4 37.0 54.5 65.5 68.4 63.5
3.1
4.5
5.6
6.9
6.9
6.7
6.3
6.3
95
317 761 1332 1522 1617 1458 1110

35.4
52.9
6.3
698

–0.8
14.7
11.6
63

–4.5

12.2
10.3
254

–0.2 9.7
17.4 25.5
10.1 10.5
729 1363

29.1
42.1
10.3
1680

38.8
52.9
10.1
1744

45.1 44.1
57.7 56.1
10.1 11.0
1458 1046

36.3
48.7
11.6
666

22.5

30.7
19.2
159

18.0
27.0
19.9
380

19.4 23.9
28.9 32.7
18.6 17.9
761 1110

31.3
39.4
15.2
1236

37.0
45.9
13.6
1268

42.4
49.6
12.3
1141

44.4

51.1
13.6
919

40.3
48.7
15.7
698

0.7
19.2
6.5
95

3.9
25.3
6.0
317

9.9 22.5 33.8 44.4 48.9 45.7
33.4 43.3 55.9 64.4 67.6 64.6
6.0
5.6
5.6
5.8
5.4
4.5
729 1300 1522 1585 1490 1141

36.7

55.6
4.3
729

41.4
58.6
11.0
1458

–7.4 –11.9 –8.0 2.3
5.5
2.3
8.8 20.3
13.9 12.3 11.4 11.9
32
190 666 1300

37.8
49.6
12.1
1744

2

°F
°F
mi/hr
2

Btu/ft /day

lb/in

–18.6 –14.4 –1.7 20.5 37.9 49.5 52.5 47.1
–1.7 7.2 23.7 41.0 59.4 70.2 72.3 66.4
3.4
4.3
5.6
6.9
7.8
7.6
6.9
6.5
32
254 729 1268 1617 1775 1617 1173

2

°F

lb/in

Sep
43.2
52.2
16.6
698

2

°F

lb/in

Aug
47.1
55.9
16.1
951

2

°F

lb/in

Jul
46.0
55.0
15.7
1173

2

°F

lb/in

Jun
40.8
50.4

15.9
1236

2

°F

lb/in

Apr May
28.6 34.9
37.9 44.4
17.9 16.3
983 1173

2

°F

lb/in

Mar
25.0
34.9
17.2
698

2

°F

lb/in

Feb
22.8
32.0
17.9
380

2

°F

lb/in

Jan
24.1
33.1
17.9
190

2

--`,,```,,,,````-`-`,,`,,`,`,,`---

Copyright American Petroleum Institute
Provided by IHS under license with API
No reproduction or networking permitted without license from IHS

Not for Resale

Oct
34.9
44.2
17.0
444

Nov Dec
29.8 26.6
38.8 35.2
17.4 17.4
222 127

Annual
33.6
43.0
17.0
698
14.55
18.1 –5.6 –14.8
17.2
32.0 10.9 1.8
36.5
5.6 3.8
3.4
5.6
317 95
0
793
14.42

19.6 –2.6 –10.8
17.1
35.2 12.7 4.6
37.0
6.3 4.0
4.0
6.3
380 127
63
856
13.81
25.2 15.1 8.2
25.7
39.7 29.7 23.4
41.4
10.3 10.5 11.0
10.7
444 190
95
761
14.58
34.2 28.8 25.2
34.9
47.1 39.9 36.3
46.8
11.0 12.1 12.3
10.5
476 222
95
793

14.55
18.1 2.5 –7.4
15.3
27.7 13.1 5.5
27.9
13.2 14.3 14.1
12.8
285 63
0
761
14.66
18.0 –3.6 –14.6
15.8
31.3 12.4 2.7
35.1
5.8 4.0
3.4
5.6
349 127
32
793
14.46
22.3 9.3 –0.6
19.0
33.6 22.5 15.1
33.3
11.0 11.4 11.2
10.7
317 95
32

793
14.63
33.6 28.9 24.8
30.6
42.1 37.0 33.3
38.8
17.9 18.8 19.7
16.8
412 190 127
698
14.59
23.2 7.9
2.8
23.4
39.4 25.2 19.8
42.8
4.7 6.0
6.3
5.6
380 127
63
793
14.45


EVAPORATIVE LOSS REFERENCE INFORMATION AND SPECIATION METHODOLOGY

Location
Yakutat, AK

Flagstaff, AZ

Phoenix, AZ

Prescott, AZ

Tucson, AZ

Fort Smith, AR

Little Rock, AR

Arcata, CA

Bakersfield, CA

Daggett, CA

Symbol
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN

TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN

TMAX
V
I
PA
TMIN
TMAX
V
I
PA

Units
°F
°F
mi/hr
2

Btu/ft /day
lb/in
°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

41.2 44.8 48.7 55.2 63.9 72.9 81.0 79.2 72.9 60.8 48.9 41.7
65.8 70.7 75.6 84.6 93.6 103.5 106.0 103.6 98.2 88.2 74.8 66.2
5.6
6.3
7.2
7.6
7.6
7.2
7.6
7.2
6.7
6.3 5.8
5.6
1015 1363 1744 2251 2536 2663 2410 2251 1934 1554 1141 951
21.9
50.4
6.9
983

24.1 28.0 33.4 41.2 49.8 57.9 55.8 48.7 38.1 28.6 22.3
54.0 57.4 64.9 73.9 84.6 88.2 84.9 80.1 71.2 59.5 51.1
7.8
9.2
9.4

9.6
9.2
7.8
6.9
7.6
7.4 7.4
6.7
1236 1617 2093 2378 2536 2188 1997 1807 1458 1078 888

38.7 41.0 44.6 50.4 57.9 67.8 73.6 72.1 67.5 56.7 45.7 39.7
63.9 67.8 72.9 81.1 90.0 99.7 99.3 96.8 93.4 84.4 72.7 64.2
8.5
8.5
8.9
9.6
9.2
9.2
8.9
8.3
8.7
8.5 8.3
8.1
1078 1395 1775 2251 2505 2568 2251 2124 1902 1585 1205 1015
25.5
48.4
8.1
824

30.2 39.2 48.6 57.7 65.8 70.0 68.7 61.9 48.7 38.5 29.3
53.4 64.0 74.1 80.4 88.0 93.0 92.5 85.3 75.7 62.8 51.3

8.5
9.4
8.9
7.6
6.5
6.3
6.3
6.7
6.7 7.8
8.3
1078 1395 1712 1902 2061 2093 1902 1522 1236 888 729

29.1
48.9
8.3
793

33.3 42.3 50.7 59.0 67.5 71.4 69.8 63.5 50.9 41.5 33.1
54.0 64.0 73.4 81.3 89.2 92.5 91.4 84.6 75.0 62.8 52.5
8.7
9.2
8.5
7.2
6.7
6.3
6.0
6.3
6.5 7.8
7.8
1046 1363 1680 1934 2061 2029 1871 1522 1236 856 698

38.8
54.0
6.5
571

40.5
54.9
7.2
793

38.7
56.8
5.6
729

42.6 45.9 50.2 57.4 64.0 69.6 68.5 63.5 54.9 44.8 38.3
63.9 68.9 75.9 84.6 92.5 98.4 96.6 90.1 80.8 66.7 56.5
6.0
6.7
7.4
8.1
7.8
7.4
6.9
6.5
6.0 5.6
5.6
1046 1490 1966 2346 2568 2536 2283 1871 1395 919 666

41.0 41.5 45.0 48.2 50.2 50.7 48.4 45.5 42.6 39.4
54.9 56.1 58.5 61.3 63.0 63.3 63.9 61.0 57.6 54.0
7.8
7.6
7.6
6.7
6.3
5.4
5.1
5.1 6.3
6.3
1141 1585 1839 1902 1871 1585 1395 983 634 507

2

°F
°F
mi/hr
2

Btu/ft /day
lb/in

17.8 21.4 26.8 33.3 41.4 50.5 48.9 41.2 30.9 22.5 15.8
45.3 49.3 57.7 67.5 78.3 81.9 79.3 73.2 63.3 51.1 43.3
6.3
6.9
7.4
7.2
6.7

5.1
4.5
5.1
5.4 6.3
5.8
1268 1617 1997 2283 2441 2029 1871 1712 1395 1046 888

2

°F

lb/in

15.3
42.3
6.5
983

2

°F

lb/in

36.7 41.4 46.0
60.6 66.0 70.5
7.8 10.1 13.2
1015 1332 1744

51.4

78.1
14.1
2219

2

--`,,```,,,,````-`-`,,`,,`,`,,`---

Copyright American Petroleum Institute
Provided by IHS under license with API
No reproduction or networking permitted without license from IHS

Oct Nov Dec
34.7 25.2 21.0
47.1 37.2 33.1
7.6 6.9
7.2
349 159
95

2

°F

lb/in

Sep
41.0
55.2
6.7

698

2

°F

lb/in

Jun Jul Aug
43.3 47.8 46.6
55.6 59.4 59.7
6.9
6.5
6.3
1395 1332 1078

2

°F

lb/in

May
36.5
50.0
7.2
1300

2

°F

lb/in

Feb
21.0
35.1
6.9
317

2

°F

lb/in

Jan
18.7
31.5
7.2
127

2

°F

lb/in

Mar Apr
23.7 29.1

38.1 43.5
6.7
6.7
698 1110

5

Not for Resale

59.5
87.4
15.2
2505

67.5
97.9
14.3
2663

73.9
103.8
12.3
2536

72.9
101.5
11.0
2314

65.7 55.6 44.4 36.7

93.7 82.8 69.4 60.4
10.5 9.4 9.6
8.5
1997 1554 1141 919

Annual
32.4
45.5
6.9
729
14.63
30.6
61.0
6.0
1617
11.43
59.4
85.8
6.7
1807
14.13
37.6
68.4
8.1
1680
12.28
54.7
82.2
8.7
1807

13.42
48.7
72.3
7.6
1458
14.52
51.1
72.5
7.4
1427
14.62
44.2
58.5
6.5
1236
14.65
53.2
77.7
6.7
1649
14.47
54.3
81.0
11.4
1839
13.73


Location
Fresno, CA

Long Beach, CA

Los Angeles, CA

Sacramento, CA

San Diego, CA

San Francisco, CA

Santa Maria, CA

Alamosa, CO

Colorado Springs,
CO

Boulder, CO

API MPMS CHAPTER 19.4

Symbol
TMIN
TMAX
V
I
PA
TMIN
TMAX

V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX

V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA

Copyright American Petroleum Institute
Provided by IHS under license with API
No reproduction or networking permitted without license from IHS

Units
°F
°F
mi/hr
2

Btu/ft /day
lb/in
°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

48.9
65.8
6.0
983

50.7 52.9 55.6 59.2 61.9 65.7 67.3 65.7 61.0 54.0 48.7
66.6 66.4 68.4 69.1 71.6 76.3 77.7 77.2 74.7 70.0 66.0
6.7
7.8
8.3
8.3
8.1
7.8
7.8
7.6
6.9 6.3

5.8
1236 1554 1934 1997 2061 2188 2061 1712 1395 1078 919

41.7
55.6
7.4
698

45.0
59.4
8.9
951

38.3
63.9
6.3
888

40.5 41.4 42.4 46.4 50.4 52.9 54.0 52.3 48.0 42.3 37.8
64.8 64.2 66.9 67.8 71.1 73.2 74.1 74.8 73.9 68.7 64.2
7.2
8.3
8.5
8.9
8.3
7.2
6.7
6.3
6.3 6.7
6.3

1173 1554 1966 2219 2346 2378 2156 1775 1395 1015 856

–3.8
33.3
7.6
951

4.8 15.8
39.9 48.7
7.6 10.5
1268 1649

23.5
58.6
11.4
2029

32.7
68.0
10.7
2251

16.2
41.4
9.2
793

19.2 24.6
44.6 50.0
9.6 10.5

1078 1427

33.1
59.7
11.4
1807

42.1 51.1 57.0 55.2 47.1 36.3 25.0 17.4
68.7 79.0 84.4 81.3 73.6 63.5 50.7 42.3
10.7 9.6
8.9
8.5
9.2
9.4 9.4
8.9
1966 2188 2124 1902 1617 1268 888 729

16.2
43.2
8.3
761

20.1 25.9 34.5 43.5 52.3 58.6 56.8 47.7 36.3 25.3 17.4
46.6 52.2 61.9 70.9 81.3 88.2 85.8 76.8 66.4 52.5 44.4
8.5
9.2
9.8
9.2
8.5
8.1

7.8
7.6
7.6 7.8
8.1
1046 1395 1775 1966 2188 2124 1902 1585 1205 824 666

43.2 45.5 50.4 55.2 58.1 57.9 55.8 50.4 43.3 37.8
64.0 71.1 80.2 87.8 93.2 92.1 87.3 77.9 63.1 52.7
7.8
8.1
8.7
8.9
8.5
8.1
6.9
5.6 5.6
5.6
1363 1871 2283 2505 2505 2219 1807 1268 761 539

45.9
60.8
10.7
1332

47.1
63.9
12.3
1807

49.6

66.6
13.9
2124

52.5
70.3
13.9
2283

54.0 55.0 55.2 51.8 47.1 42.6
71.6 72.3 73.6 70.2 62.4 56.1
13.9 12.8 11.2 9.6 8.3
7.8
2314 2061 1712 1236 793 634

41.0 47.8 45.3 36.7 24.6 12.4 –0.6
77.7 82.0 79.2 72.7 62.4 47.5 35.4
10.1 8.1
7.6
6.0
7.6 8.9
5.8
2441 2283 2061 1775 1427 1046 856

2

°F
°F
mi/hr
2

Btu/ft /day
lb/in

41.4
60.1
6.9
951

2

°F

lb/in

37.8
52.7
5.6
602

2

°F

lb/in

49.3 50.5 52.9 56.3 59.5 62.8 64.2 63.1 59.2 52.9 47.8
65.8 65.5 67.5 69.1 72.0 75.4 76.6 76.6 74.5 70.3 65.8
7.6
8.5

8.9
8.7
8.5
8.3
8.3
7.8
7.4 7.2
6.7
1141 1522 1934 2029 2093 2251 2061 1680 1332 1015 824

2

°F

lb/in

47.8
65.7
6.9
888

2

°F

lb/in

46.9 48.9 51.8 56.3 59.7 63.3 64.8 62.8 57.7 50.4 45.0
67.6 68.0 71.4 73.2 77.0 82.8 84.0 82.0 78.4 72.1 66.9
6.3

6.9
7.4
7.4
6.9
6.7
6.7
6.3
5.6 5.6
5.1
1141 1490 1902 2029 2124 2314 2124 1712 1332 983 824

2

°F

lb/in

45.0
66.7
5.6
888

2

°F

lb/in

Jun Jul Aug Sep Oct Nov Dec
60.4 65.1 63.9 58.8 50.7 42.4 37.0

92.7 98.6 96.6 90.1 79.7 64.8 53.8
8.5
7.6
6.9
6.3
5.1 4.7
4.7
2568 2536 2283 1871 1363 856 602

2

°F

lb/in

Feb Mar Apr May
40.5 43.3 47.3 53.8
61.7 66.6 75.0 84.2
5.6
6.7
7.6
8.5
1015 1490 1997 2378

2

°F

lb/in

Jan
37.4
54.1
4.9
666

2

Not for Resale

Annual
50.2
76.5
6.5
1649
14.56
54.3
74.1
6.5
1585
14.71
55.6
70.3
7.8
1554
14.68
48.0
73.6
7.2
1554

14.72
57.6
70.9
7.4
1585
14.71
48.9
65.1
11.0
1490
14.75
45.5
69.1
7.2
1649
14.62
23.4
58.8
8.5
1680
11.20
35.4
61.5
9.6
1490
11.76
36.1
64.2
8.5
1458

12.12

--`,,```,,,,````-`-`,,`,,`,`,,`---

6


EVAPORATIVE LOSS REFERENCE INFORMATION AND SPECIATION METHODOLOGY

Location
Eagle, CO

Grand Junction, CO

Pueblo, CO

Bridgeport, CT

Hartford, CT

Wilmington, DE

Daytona Beach, FL

Jacksonville, FL

Key West, FL

Miami, FL

Symbol
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I

PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA

Units
°F
°F
mi/hr
2

Btu/ft /day
lb/in

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

45.7
76.5
11.0
2124

54.1 61.2 59.0 50.2 36.7 24.3 15.4
87.6 93.0 89.8 81.3 70.5 56.8 46.8
10.1 9.4
8.7
8.7
8.3 8.3
8.1

2346 2283 2061 1712 1332 919 761

21.9
36.0
13.2
602

23.2
37.6
13.6
856

30.9
46.2
13.6
1173

39.7
56.7
13.2
1490

50.0
66.7
11.6
1712

59.2
75.9
10.7

1871

15.8
33.3
8.5
602

18.7
36.3
8.9
856

28.0 37.6 47.7 56.8 62.2 60.4 51.8 40.6 32.7 21.4
46.8 59.9 71.6 80.1 84.9 82.8 74.8 63.7 51.1 37.6
9.6
9.8
8.5
7.8
7.4
6.9
6.9
7.4 8.3
8.3
1173 1458 1712 1871 1871 1617 1300 951 602 476

22.5
38.7
10.1
634

24.8
41.9
10.3
919

33.1
52.2
11.4
1236

46.9
68.0
8.5
983

48.4 54.0 58.6 64.9 70.9 72.5 72.9 72.0 65.1 56.3 49.6
69.4 74.8 80.1 84.6 88.0 89.8 89.1 86.7 81.5 75.6 70.3
9.2
9.4
9.2
8.5
7.6
7.2
6.7
7.8
8.9 8.3
8.1
1236 1585 1966 2029 1934 1902 1807 1554 1332 1078 919

40.5

64.2
8.1
919

43.3 49.3 54.9 62.1 69.1 72.0 71.8 69.1 59.4 50.2 43.3
66.9 73.0 79.2 84.7 89.2 91.4 90.7 87.3 80.2 73.6 66.7
8.7
8.7
8.3
7.6
7.2
6.7
6.3
6.9
7.6 7.4
7.4
1173 1490 1871 1934 1902 1839 1712 1458 1268 1015 856

41.7 52.2 61.5 67.1 65.8 58.3 45.7 37.0 27.7
62.6 72.9 81.3 85.6 84.0 77.7 66.6 55.6 43.9
11.0 9.4
8.5
7.8
7.6
8.1
8.3 9.4
9.6
1554 1775 1966 1934 1712 1395 1046 698 539

64.9 65.7 69.1

74.8 75.4 78.6
11.6 12.1 12.3
1173 1395 1744

72.1
81.7
11.9
1997

°F

59.2 60.4 64.2
75.2 76.5 79.2
9.6 10.5 11.0
1110 1332 1649

67.8 72.1 75.0 76.3 76.6 75.9 72.1 66.7 61.5
82.4 85.3 87.6 89.1 89.1 87.8 84.6 80.4 76.6
10.7 9.8
8.5
8.3
8.3
8.5
9.8 10.1 9.6
1902 1902 1775 1839 1775 1554 1395 1173 1046

mi/hr
2

Btu/ft /day

2

--`,,```,,,,````-`-`,,`,,`,`,,`---

Copyright American Petroleum Institute
Provided by IHS under license with API
No reproduction or networking permitted without license from IHS

65.7 65.1 57.6 47.1 38.1 27.7
81.7 81.0 74.1 64.0 53.1 41.0
10.3 10.5 11.6 11.9 13.0 13.0
1839 1649 1332 983 634 507

76.1
85.1
10.7
1997

78.4 79.5 79.3 78.4
87.6 89.1 89.2 88.0
10.1 9.6
9.2
9.6
1934 1934 1839 1649

75.6
84.4
11.6
1458

71.2
80.1
12.3
1205

66.7
76.1
11.9
1078

2

°F

lb/in

35.8
67.8
11.4
1902

2

°F

lb/in

19.6 26.1
50.7 57.2
8.7 10.3

1141 1490

2

°F

lb/in

14.2
45.3
8.3
856

2

°F

lb/in

23.5 31.3 38.5 47.8 57.0 63.9 62.2 52.9 41.5 29.5 18.7
45.3 55.6 65.8 75.9 87.6 93.6 90.5 81.1 67.6 51.4 38.7
6.5
8.1
9.2
9.4
9.4
9.2
8.7
8.5
7.6 6.7

5.6
1110 1458 1902 2219 2441 2346 2093 1744 1300 856 698

2

°F

lb/in

14.5
35.4
5.6
793

2

°F

lb/in

Jun Jul Aug Sep Oct Nov Dec
40.5 47.1 45.3 37.0 26.8 17.4 6.1
80.1 86.0 83.3 75.0 63.3 47.1 34.9
6.0
5.6
5.4
5.6
4.7 4.7
4.0
2283 2188 1934 1617 1236 793 666

2

°F

lb/in

Feb Mar Apr May
10.4 19.8 26.4 33.8
40.6 48.4 58.6 69.1
4.7
5.8
6.9
6.7
1046 1395 1775 2029

2

°F

lb/in

Jan
3.7
33.8
4.3
761

2

°F

lb/in

7

Not for Resale

Annual
26.2
60.1
5.4
1490
11.63
40.1
65.8
7.8
1585
12.37
36.9
68.5
9.4
1585
12.40
43.9
59.5
12.3
1205
14.74
39.6

60.3
8.3
1205
14.65
44.8
63.7
9.4
1300
14.72
61.0
79.9
8.3
1522
14.75
57.0
79.0
7.6
1458
14.75
73.0
82.6
11.2
1617
14.74
69.1
82.8
9.4
1522
14.75

8

Location
Tallahassee, FL

Tampa, FL

West Palm Beach,
FL

Athens, GA

Atlanta, GA

Augusta, GA

Columbus, GA

Macon, GA

Savannah, GA

--`,,```,,,,````-`-`,,`,,`,`,,`---

Hilo, HI

API MPMS CHAPTER 19.4

Symbol

TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA

TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA

Copyright American Petroleum Institute
Provided by IHS under license with API
No reproduction or networking permitted without license from IHS

Units
°F
°F
mi/hr
2

Btu/ft /day
lb/in
°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

64.6
80.1
10.7
1078

58.6
75.9
10.3
983

32.0
51.6
8.5
824

34.7 42.1 49.8 58.1 65.8 69.4 68.7 63.0 50.7 42.3 35.1
56.3 65.1 73.4 80.4 87.1 89.6 88.2 82.8 73.6 64.4 55.0
8.9
8.7
8.3
6.9
6.5
6.3
5.8
6.5
6.7 7.4
8.1
1078 1427 1775 1934 2029 1934 1775 1522 1268 919 761

31.5
50.4
9.8
824

34.5 42.4 50.2 58.6 66.2 69.4 69.1 63.5 52.0 42.8 35.1
55.0 64.2 72.7 79.5 85.8 88.0 87.1 81.9 72.7 63.3 54.0
10.3 10.1 9.6
8.5
7.8

7.6
7.2
7.8
8.3 8.7
9.4
1078 1427 1807 1966 2029 1966 1807 1522 1300 919 761

32.0
55.8
7.2
824

34.7 42.3 48.6 57.6 65.7 70.0 69.1 63.1 50.4 41.5 34.9
60.1 68.7 76.6 83.7 89.2 91.8 90.3 85.6 77.2 68.4 59.5
7.6
7.8
7.6
6.5
6.3
6.0
5.4
5.6
5.6 6.3
6.7
1110 1427 1807 1934 1997 1934 1744 1522 1300 951 761

35.2
56.1
7.4
856

37.6 45.1 52.2 61.0 68.4 71.8 71.4 66.4 54.1 45.0 38.1
61.0 69.1 77.4 83.7 90.3 91.8 91.2 86.2 77.5 68.2 59.0
8.1
7.8
7.6
6.7
6.3
6.0
5.6
6.5
6.7 6.7
6.9
1110 1458 1807 1966 2029 1902 1775 1554 1332 983 793

34.2
56.7
7.6
856

36.9 44.2 50.9 59.4 66.7 70.5 69.8 64.2 51.6 43.2 37.0
60.8 69.4 77.7 84.6 90.1 91.9 91.0 86.4 77.9 68.7 60.3
8.5
8.5
8.3
7.2
6.9
6.7
6.3
6.5

6.5 6.7
7.4
1110 1458 1807 1966 1997 1902 1775 1522 1300 951 793

38.1
59.7
8.5
888

41.2 48.4 54.5 63.0 69.3 72.3 72.1 67.8 56.8 48.0 41.0
62.4 70.2 77.5 84.0 88.9 91.0 89.8 85.3 77.5 70.0 62.2
9.2
9.2
8.7
7.6
7.4
7.2
6.5
7.2
7.4 7.6
7.6
1110 1490 1839 1966 1997 1934 1744 1490 1300 983 824

2

°F
°F
mi/hr
2

Btu/ft /day
lb/in

70.7
84.9
10.7
1332

2

°F

lb/in

69.6 73.0 74.5 75.0 74.7
85.6 88.2 90.0 90.0 88.5
10.3 8.7
8.3
8.3
8.7
1902 1807 1871 1775 1522

2

°F

lb/in

64.8
82.0

11.0
1871

2

°F

lb/in

55.8 56.5 61.2
74.5 75.9 78.8
10.3 10.7 11.4
1046 1268 1585

2

°F

lb/in

50.0 51.6 56.5 60.8 67.5 72.9 74.5 74.5 72.9 65.1 57.2 52.3
69.8 71.4 76.6 81.7 87.3 89.4 90.1 90.1 89.1 84.4 77.7 72.1
8.7
9.2
9.4
9.2
8.7
8.1
7.4
6.9

7.6
8.5 8.5
8.5
1015 1268 1617 1966 2029 1934 1839 1744 1554 1395 1141 983

2

°F

lb/in

Dec
40.3
65.8
6.5
856

2

°F

lb/in

Jun Jul Aug Sep Oct Nov
68.5 71.1 71.4 68.0 55.9 46.2
90.9 91.2 91.0 88.5 81.5 73.0
5.6
5.1
5.1
6.0

6.5 6.3
1934 1839 1744 1554 1363 1046

2

°F

lb/in

Feb Mar Apr May
40.1 46.8 52.2 60.8
66.4 73.6 80.4 86.4
7.4
7.6
7.2
6.5
1173 1490 1871 1997

2

°F

lb/in

Jan
38.1
63.0
6.7
919

63.7 63.7 64.4 65.5 66.6 67.6 68.5 68.9 68.5 68.2 66.7 64.8
79.9 79.9 79.5 79.9 81.1 82.8 82.9 83.7 83.8 83.1 81.3 80.1
7.8
8.1
8.1
8.1
7.8
7.6
7.4
7.2
7.2
7.2 7.4
7.6
1205 1363 1458 1522 1649 1712 1649 1680 1585 1363 1173 1110

2

Not for Resale

Annual
55.0
79.3
6.3
1490
14.74
63.0
81.7
8.5
1554
14.76

66.6
82.9
9.8
1490
14.75
51.1
72.3
7.4
1427
14.34
51.3
71.2
8.7
1458
14.23
50.7
75.6
6.5
1458
14.69
54.0
75.9
6.7
1458
14.56
52.3
76.3
7.2
1458
14.58

55.9
76.5
7.8
1458
14.75
66.4
81.5
7.6
1458
14.72


Location
Honolulu, HI

Kahului, HI

Lihue, HI

Boise, ID

Pocatello, ID

Chicago, IL

Moline, IL

Peoria, IL

Rockford, IL

Springfield, IL

Symbol
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN

TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA

Copyright American Petroleum Institute
Provided by IHS under license with API
No reproduction or networking permitted without license from IHS

Units

°F
°F
mi/hr
2

Btu/ft /day
lb/in
°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

63.7 63.3 64.6
79.9 80.1 81.1
11.6 12.1 12.8
1268 1490 1712

66.0
82.2
14.1
1871

66.9
84.2
15.0
2029

69.1
85.8
15.9
2124

70.5 70.9 69.8
86.7 87.6 87.6
16.6 15.9 13.9
2124 2061 1934

69.3
86.4
12.3
1617

67.6
83.7
12.8
1363

65.1
81.1
11.2
1236

65.3 65.1 66.9
77.9 78.1 78.4
11.6 11.9 13.2
1173 1363 1554

68.5
79.5
14.3
1680

70.3
81.1
13.6
1871

72.5
83.1
13.6
1934

73.8 74.1 73.6
84.0 84.7 84.7
14.3 13.2 12.1
1902 1871 1775

72.0
83.1
11.9
1490

70.3
80.8
12.8
1205

67.1
78.6
11.6
1110

21.6
36.3
7.2
507

27.5
44.2
8.5
793

31.8 36.7 43.9 52.2 57.7 56.8 48.2 39.0 31.1 22.5
52.9 61.3 71.1 81.0 90.1 88.2 77.0 64.6 48.7 37.8
9.4
9.6
9.4

8.7
8.1
7.8
7.8
7.6 8.1
7.4
1205 1680 2061 2283 2410 2093 1617 1078 602 444

14.4
32.2
10.1
539

19.8
38.5
10.3
824

25.9
46.8
11.0
1205

32.4
57.6
11.6
1617

39.6 47.3 53.1 50.9 42.8 33.4 26.1 15.8
67.5 78.1 88.2 86.4 75.0 62.4 45.1 33.6

10.7 9.6
8.9
8.7
8.9
9.2 10.5 9.6
1966 2219 2314 1997 1585 1110 634 476

12.9
28.9
11.6
571

17.2
33.4
11.4
824

28.6
45.9
12.1
1110

38.7
58.6
11.9
1458

47.7 57.6 62.6 61.5 54.0 42.3 31.6 19.0
70.2 79.5 83.7 81.9 74.8 63.3 48.4 34.0
10.3 9.4

8.3
8.1
8.9 10.1 10.7 11.0
1807 1997 1934 1712 1332 951 571 476

11.3
28.4
11.4
602

16.0
33.6
10.7
856

28.0
46.8
12.3
1141

39.4
61.3
12.1
1490

49.8 59.5 64.6 61.9 53.2 41.7 30.7 17.4
72.9 82.6 85.8 83.5 75.9 64.2 48.4 33.4
10.3 9.4
7.8
7.6

8.3
9.6 10.7 11.0
1807 2029 1997 1744 1363 1015 634 507

13.3
29.8
11.0
634

17.8
34.9
10.7
888

29.8
48.0
11.9
1141

40.8 50.9 60.6 65.5 63.1 55.2 43.2 32.5 19.2
62.1 72.9 82.2 85.6 83.1 76.8 64.8 49.8 34.5
11.4 9.6
8.5
7.6
7.4
8.1
9.2 10.5 10.5
1522 1839 2029 1997 1744 1395 1015 634 507

9.9

26.6
11.2
602

14.2
31.6
10.7
856

26.1
43.9
12.1
1110

36.9
58.5
11.9
1458

47.5 57.4 62.4 60.3 52.0 40.6 29.5 16.2
70.9 80.2 83.8 81.3 74.1 62.2 46.2 31.8
10.5 9.4
8.3
7.8
8.5
9.6 10.7 10.7
1807 1997 1934 1712 1332 951 571 476

16.0
32.5

12.3
666

20.1
37.2
11.9
919

31.6
50.0
13.2
1173

42.4
63.9
12.5
1585

52.3 61.9 66.0 63.3 55.9
74.7 83.8 86.9 84.2 78.6
10.7 9.4
8.3
7.8
8.9
1902 2061 2029 1807 1458

2

°F
°F

mi/hr
2

Btu/ft /day
lb/in

Dec
66.9
81.1
9.6
1173

2

°F

lb/in

Nov
70.3
84.0
10.3
1300

2

°F

lb/in

Oct
72.3
86.9
10.3
1585

2

°F

lb/in

Jul Aug Sep
73.6 74.1 73.6
87.4 88.7 88.5
12.8 12.1 11.0
2093 2061 1871

2

°F

lb/in

Jun
72.1
86.5
12.3
2061

2

°F

lb/in

May
70.3
84.7
11.4
2029

2

°F

lb/in

Apr
68.7
82.8
11.4
1871

2

°F

lb/in

Jan Feb Mar
65.7 65.5 67.3
80.1 80.4 81.7
9.6
9.6 11.2
1236 1490 1712

2

°F

lb/in

9

2

Not for Resale

44.4
66.7
10.3
1078

34.0 21.9
51.6 37.2
11.6 12.1
698 539

Annual

70.0
84.4
11.0
1712
14.74
67.3
83.8
13.6
1744
14.69
70.0
81.1
13.0
1585
14.68
39.0
62.8
8.3
1395
13.28
33.4
59.4
10.1
1363
12.53
39.6
58.6
10.3
1236
14.39

39.6
59.7
10.1
1268
14.43
41.0
60.4
9.6
1268
14.40
37.8
57.6
10.1
1236
14.36
42.4
62.2
10.7
1332
14.43
--`,,```,,,,````-`-`,,`,,`,`,,`---

EVAPORATIVE LOSS REFERENCE INFORMATION AND SPECIATION METHODOLOGY


10

Location
Evansville, IN

Fort Wayne, IN

Indianapolis, IN

South Bend, IN

Des Moines, IA
--`,,```,,,,````-`-`,,`,,`,`,,`---

Mason City, IA

Sioux City, IA

Waterloo, IA

Dodge City, KS

Goodland, KS

API MPMS CHAPTER 19.4

Symbol
TMIN
TMAX
V
I
PA
TMIN
TMAX
V

I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V

I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA

Copyright American Petroleum Institute
Provided by IHS under license with API
No reproduction or networking permitted without license from IHS

Units
°F
°F
mi/hr
2

Btu/ft /day
lb/in
°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

20.8
38.3
10.3
888

31.8
50.9
11.4
1173

41.5 51.6 61.0 65.1 62.8 55.6 43.5 34.2 23.2
63.3 73.8 82.8 85.5 83.7 77.5 65.8 52.0 38.5
10.5 9.2
8.3
7.4
6.9
7.6

8.5 9.8 10.3
1554 1871 2061 1997 1775 1458 1046 666 507

16.2
30.4
11.9
539

18.7
34.2
11.2
793

29.1
45.7
11.9
1078

38.7 48.7 58.6 63.0 61.2 53.8 42.8 33.4 22.3
58.6 70.0 79.5 82.9 80.8 74.1 62.2 48.6 35.4
11.4 9.8
8.9
8.1
7.6
8.3
9.4 10.7 11.4
1458 1775 1966 1902 1680 1300 919 539 444

10.8
28.0

11.4
634

15.6
33.6
11.2
888

27.7
46.9
12.3
1205

39.9
61.9
12.3
1554

51.4 61.2 66.6 63.7 54.5 42.6 29.8 16.2
73.0 82.2 86.7 84.2 75.6 64.2 48.0 32.5
10.7 9.8
8.7
8.5
9.2
9.8 10.7 11.0
1839 2061 2061 1807 1395 1015 666 539

4.3
22.1
13.2

602

9.9
27.5
12.3
856

22.8
39.9
13.2
1173

35.6
57.0
13.2
1490

46.8
70.5
12.1
1839

56.8 61.5 58.6 49.3 37.9 25.0 10.2
79.9 83.7 81.0 72.1 60.4 43.0 26.4
11.0 8.9
8.5
9.6 11.0 12.1 12.5
1997 1997 1744 1363 951 571 476

7.7

27.7
11.6
602

13.8
33.3
11.4
888

25.7
45.9
12.8
1205

38.3
62.2
13.2
1554

50.0
73.2
12.1
1839

59.5 64.8 62.1 52.0
82.0 86.5 83.5 74.8
10.7 9.4
9.2
9.8
2093 2061 1807 1395

5.4
23.7
11.6
602

10.6
29.5
11.2
856

25.0
43.3
12.5
1141

37.0
59.4
12.5
1490

48.7 57.6 62.2 59.0 50.0 38.5 26.2 11.7
71.6 80.4 83.8 81.5 73.8 61.9 45.1 28.9
11.0 9.8
8.5
8.5
9.2 10.1 11.2 11.4
1807 2029 1997 1744 1363 951 602 476

18.1

41.5
13.2
856

22.6 30.4
47.3 56.7
13.4 15.0
1141 1490

41.4
68.0
15.0
1871

52.0
76.3
14.1
2061

61.9
87.1
13.4
2283

67.5 65.7 56.7
93.0 90.7 81.3
13.0 12.3 13.0
2283 1997 1617

44.2

70.7
13.0
1268

31.1 21.2
55.2 43.9
13.2 13.2
888 761

15.3
41.5
12.8
793

19.0 25.3
45.3 52.7
12.5 14.3
1046 1427

35.2
63.7
14.8
1807

45.7
72.3
13.6
1997

55.2

83.5
12.8
2283

61.3 59.2 50.0
89.8 87.3 78.1
12.3 11.4 12.1
2251 1997 1617

37.6
66.6
11.9
1236

25.7 17.1
51.6 42.1
12.1 12.3
856 698

39.6
64.0
10.5
1015

26.4 12.7
46.4 30.9
11.2 11.4
634 507

2

°F
°F
mi/hr
2

Btu/ft /day
lb/in

17.2
33.6
10.5
634

2

°F

lb/in

38.5 49.1 59.4 63.1 61.0 54.1 42.4 33.4 21.6
59.7 71.2 81.0 84.6 82.2 75.6 63.1 49.1 35.4
11.4 9.8
9.2
8.1
7.6
8.1
9.2 10.5 11.2
1458 1775 1966 1934 1680 1363 951 571 444

2

°F

lb/in

28.8
46.2
12.1
1110

2

°F

lb/in

17.8
34.0
11.0
824

2

°F

lb/in

15.3
30.4

11.9
571

2

°F

lb/in

Jun Jul Aug Sep Oct Nov Dec
63.3 67.5 64.9 57.6 44.8 36.5 26.8
86.2 89.1 87.3 80.8 69.6 55.9 43.5
6.9
6.0
5.6
6.0
6.7 8.1
8.5
2061 1997 1807 1458 1110 729 571

2

°F

lb/in

Mar Apr May
35.8 45.0 54.1
55.9 67.5 76.8
9.6

9.2
7.6
1205 1585 1871

2

°F

lb/in

Feb
25.0
43.7
8.9
919

2

°F

lb/in

Jan
21.2
38.8
8.9
666

2

Not for Resale

Annual
45.1
66.4
7.6
1332
14.56
40.5
59.4
10.1
1236
14.31
42.4
62.1
9.2
1300
14.33
40.5
58.5
10.1
1205
14.33
39.9
59.7
10.5
1300
14.24
34.9
55.2

11.4
1268
14.10
37.8
59.2
11.2
1300
14.16
36.0
56.8
10.5
1268
14.29
42.6
67.6
13.4
1554
13.42
37.2
64.6
12.8
1490
12.88


Location
Topeka, KS

Wichita, KS

Covington, KY

Lexington, KY

Louisville, KY

Baton Rouge, LA

Lake Charles, LA

New Orleans, LA

Shreveport, LA

Caribou, ME

Symbol
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V

I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V

I
PA
TMIN
TMAX
V
I
PA

Copyright American Petroleum Institute
Provided by IHS under license with API
No reproduction or networking permitted without license from IHS

Units
°F
°F
mi/hr
2

Btu/ft /day
lb/in
°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

44.4
68.4
13.6
1712

54.3
76.8
12.1
1934

64.6
86.7
11.6
2124

19.6
36.7
10.5
602

22.6
40.8

10.1
856

33.1
53.1
11.0
1141

42.3 51.8 60.1 64.8 63.0 56.7 44.2 35.2 25.3
64.2 73.9 82.0 85.5 84.0 77.9 66.0 53.2 41.5
10.3 8.5
7.8
6.9
6.9
7.2
8.1 9.4 10.1
1522 1807 1966 1902 1744 1427 1046 666 507

22.5
39.0
9.8
634

25.3
43.5
9.8
888

35.2 44.2 53.4 61.5 65.7 64.4 57.9 46.0 37.0 27.7
55.2 65.5 74.3 82.8 85.8 84.9 78.3 67.3 54.9 44.2

10.5 9.8
8.3
7.6
6.7
6.7
6.9
7.6 9.2
9.8
1173 1554 1807 1966 1902 1744 1395 1078 698 539

23.2
40.3
9.4
634

26.4
44.8
9.4
888

36.1 45.3 54.7 63.0 67.3 65.8 58.6 45.9 37.2 28.6
56.3 67.3 75.9 83.5 87.1 85.6 80.2 69.3 56.8 45.1
10.1 9.6
8.1
7.6
6.7
6.7
6.7
7.4 8.7
9.4

1205 1585 1839 1997 1934 1775 1427 1110 698 539

39.6
59.7
8.5
824

42.4 50.2 57.9 64.8 70.3 73.2 72.7 68.7 57.0 48.9 42.4
63.7 72.3 79.9 85.6 90.5 91.4 91.0 87.4 80.1 70.9 63.3
8.9
9.2
8.7
7.6
6.5
5.8
5.4
6.5
6.5 7.6
8.1
1110 1395 1712 1871 1902 1807 1712 1522 1363 951 793

41.2
59.7
9.8
856

44.1 50.7
63.3 70.7
10.3 10.3
1141 1427

41.7
60.8
8.9
856

44.4 51.6 58.5 65.1 70.9 73.0 72.9 69.4 58.6 51.1 44.8
64.0 71.6 78.4 84.4 89.2 90.7 90.1 86.5 79.3 71.1 64.2
9.6
9.4
9.2
8.1
6.7
5.8
5.8
6.9
7.4 8.5
8.9
1141 1427 1744 1934 1934 1807 1744 1554 1363 983 824

34.9
55.4
8.7
824

37.9 45.9 54.1 62.1 69.1 72.3 71.2 66.0 54.3 45.3 37.2
60.6 69.3 77.2 83.1 89.8 93.0 93.0 87.3 78.6 68.0 58.5
9.4
9.8
9.4

8.3
7.4
6.9
6.5
7.2
7.2 8.5
8.7
1078 1395 1712 1902 2029 2029 1902 1585 1300 951 793

–1.7
19.4
11.4
507

0.7
23.0
11.2
824

70.0 67.8 59.2
92.8 90.7 81.3
11.4 11.0 11.4
2156 1934 1554

46.6
70.5
11.6
1205

34.0 23.0

55.2 43.0
12.1 12.1
824 698

58.6 65.7 71.6 73.6 73.0 68.5 57.9 50.0 43.5
77.9 84.0 89.1 90.9 90.9 86.7 80.2 70.9 63.3
10.1 8.7
7.6
6.5
6.0
7.2
7.6 9.2
9.8
1712 1902 1997 1902 1775 1585 1363 1015 824

2

°F
°F
mi/hr
2

Btu/ft /day
lb/in

23.7 33.6
45.9 57.2
12.3 13.9
1046 1363

2

°F

lb/in

19.2
39.7
12.1
793

2

°F

lb/in

Jun Jul Aug Sep Oct Nov Dec
63.0 67.6 64.9 55.8 43.5 32.0 21.0
84.2 89.2 87.4 79.7 69.1 54.0 40.5
9.4
8.5
8.1
8.3
8.7 9.6
9.4
2061 2093 1839 1458 1110 761 602

2

°F

lb/in

May
53.2
75.7
10.3
1871

2

°F

lb/in

Apr
42.8
66.9
11.6
1617

2

°F

lb/in

Mar
32.2

55.0
11.9
1268

2

°F

lb/in

Feb
21.7
42.6
10.1
951

2

°F

lb/in

Jan
16.3
37.0
9.8
729

2

°F

lb/in

11

14.9
34.3
11.9
1205

28.9
46.8
11.4
1458

2

Not for Resale

40.1 49.1 54.5 52.2 43.2 34.3 23.7 5.5
61.7 72.0 76.5 73.6 64.0 52.0 37.6 24.1
10.7 9.8
9.2
8.5
9.4 10.1 10.5 11.0
1649 1807 1775 1522 1141 729 444 380

Annual
42.8

65.1
9.6
1363
14.29
45.0
67.5
12.1
1458
14.04
43.2
63.1
8.9
1268
14.30
45.1
64.8
8.5
1300
14.24
46.0
66.0
8.3
1300
14.50
57.4
78.1
7.4
1427
14.72
58.3

77.4
8.5
1458
14.74
58.5
77.5
7.8
1458
14.75
54.1
76.3
8.1
1458
14.62
28.8
48.7
10.3
1141
14.37
--`,,```,,,,````-`-`,,`,,`,`,,`---

EVAPORATIVE LOSS REFERENCE INFORMATION AND SPECIATION METHODOLOGY


12

Location
Portland, ME

Baltimore, MD

Boston, MA

Worchester, MA

Alpena, MI

Detroit, MI

Flint, MI

Grand Rapids, MI

Houghton, MI

--`,,```,,,,````-`-`,,`,,`,`,,`---

Lansing, MI

API MPMS CHAPTER 19.4

Symbol
TMIN
TMAX
V
I
PA
TMIN
TMAX
V

I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V

I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA

Copyright American Petroleum Institute
Provided by IHS under license with API
No reproduction or networking permitted without license from IHS

Units
°F
°F
mi/hr
2

Btu/ft /day
lb/in
°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

23.0
37.6
13.6
856

31.3
45.9
13.6
1173

40.3
55.9
13.2
1490

15.1
30.7

11.0
602

16.5
33.1
10.7
888

25.0
42.4
10.7
1205

34.7 45.1 54.0 60.1 58.6 50.5 40.5 31.3 20.1
54.0 65.8 74.5 79.3 77.4 69.6 59.5 47.5 34.7
10.3 9.2
8.5
7.8
7.6
8.1
8.9 10.1 10.3
1490 1744 1902 1871 1649 1332 951 602 476

8.8
26.4
9.2
507

8.2
28.2

8.7
793

18.0 30.0 39.2 48.0 54.0 52.5 46.2 37.0 28.4 16.5
37.9 51.6 64.8 74.5 80.2 76.8 68.4 56.8 43.0 30.9
9.4
9.4
8.5
7.8
7.4
6.9
7.4
8.1 8.9
8.7
1173 1490 1807 1966 1934 1617 1205 793 476 380

15.6
30.4
12.1
507

17.6
33.3
11.4
793

27.0
44.4
11.9
1078

36.9
57.7
11.6
1458

14.2
28.8
11.4
507

15.6
31.3
10.7
793

25.5
42.3
11.4
1078

36.0 45.7 54.7 59.7 57.9 51.1 40.5 32.2 20.7
55.9 68.0 76.8 81.5 79.2 71.6 59.7 46.6 33.8
11.0 9.8
8.9
8.1
7.6
8.5
9.4 10.7 11.0
1458 1775 1934 1902 1649 1268 856 507 412

14.7
28.9
11.4
507

15.8
31.6
10.5
793

25.3
42.8
11.4
1110

35.4 45.7 55.2 60.4 58.5 49.8 39.0 30.2 20.7
56.7 69.3 78.6 82.8 80.4 72.0 59.7 45.9 33.4
11.0 9.6
8.9
8.3
7.8
8.3
8.9 10.3 10.7
1490 1807 1997 1966 1680 1300 856 507 412

8.4
25.3
10.1
412

8.2
28.0
9.2
698

18.1
38.1
9.8
1110

31.6 42.1 50.5 55.4 53.8 46.9 37.6 28.4 15.6
52.7 66.0 74.8 79.5 76.5 67.8 55.8 42.1 29.5
10.1 9.2
8.5
7.6
7.4
7.8
8.7 9.6
9.6
1458 1744 1902 1902 1585 1141 729 412 349

13.3
28.6
12.1
507

14.2
31.6
11.0

793

24.4
42.6
11.6
1110

35.1
56.7
11.4
1458

49.8
66.6
12.3
1775

59.2
76.3
11.4
1934

65.1 64.0 56.8 46.9 38.3 26.8
81.9 79.9 72.9 62.8 52.2 40.5
11.0 10.7 11.4 12.1 13.0 13.6
1934 1712 1363 951 602 476

47.1 56.3 61.3 59.5 52.5 40.8 32.2 21.4
69.6 79.0 83.3 81.3 73.9 61.5 48.0 35.2
10.3 9.4

8.5
8.3
8.7
9.8 11.2 11.4
1775 1966 1934 1680 1300 888 539 412

2

°F
°F
mi/hr
2

Btu/ft /day
lb/in

21.6
35.8
13.9
602

2

°F

lb/in

42.4 52.5 61.9 66.7 65.7 58.5 45.9 37.0 28.2
64.2 74.1 83.1 87.3 85.5 78.4 67.3 56.5 45.1
10.3 8.7

8.1
7.6
7.6
7.8
8.3 8.9
9.2
1554 1775 1966 1902 1680 1395 1046 698 571

2

°F

lb/in

34.2
54.0
10.3
1236

2

°F

lb/in

25.9
43.7
9.8
919

2

°F

lb/in

23.4
40.3
9.4
666

2

°F

lb/in

Jun Jul Aug Sep Oct Nov Dec
52.2 58.3 57.0 48.9 38.3 30.4 17.8
72.7 78.8 77.4 69.3 58.6 46.9 35.1
8.5
7.6
7.6
7.8
8.3 8.9
8.7
1934 1902 1712 1332 919 571 476

2

°F

lb/in

Mar Apr May
24.4 34.2 43.3
41.4 52.3 63.1
9.8
9.8
9.2
1205 1490 1775

2

°F

lb/in

Feb
13.5
33.1
9.2
888

2

°F

lb/in

Jan
11.5
30.4
9.2
602

45.0 54.5 59.0 56.8 49.8 39.2 30.7 19.2
69.1 78.3 82.6 80.4 72.0 59.4 45.9 33.4
10.1 9.2
8.1
7.6
8.3
9.2 10.7 11.2
1775 1966 1934 1649 1268 856 539 412

2

Not for Resale

Annual
35.8
54.9
8.7
1236
14.69
45.1
64.9
8.7
1268
14.68

43.5
59.0
12.5
1236
14.72
37.6
55.8
9.4
1236
14.20
32.4
53.2
8.5
1173
14.36
39.0
58.1
10.3
1205
14.39
37.8
56.3
9.8
1173
14.33
37.6
56.8
9.8
1205
14.31

33.1
53.1
8.9
1141
14.13
36.9
56.7
10.1
1205
14.29


EVAPORATIVE LOSS REFERENCE INFORMATION AND SPECIATION METHODOLOGY

Location
Muskegon, MI

Sault Ste. Marie, MI

Traverse City, MI

Duluth, MN

International Falls,
MN

Minneapolis, MN

Rochester, MN

Saint Cloud, MN

Jackson, MS

Meridian, MS

Symbol
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V

I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA

Units
°F

°F
mi/hr
2

Btu/ft /day
lb/in
°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

13.3
26.2
10.3
476

11.1

28.2
9.4
761

20.1 31.8 41.0 51.1 57.4 55.9 49.3 39.6 30.6 19.6
38.5 53.2 66.4 75.9 81.3 78.3 69.6 57.9 43.9 31.3
9.4
9.6
8.5
8.3
7.6
7.6
8.1
8.5 9.4
9.6
1110 1458 1775 1966 1934 1617 1173 761 444 380

–2.2
16.2
11.4
507

2.8
21.7
10.7
824

15.6
32.9
11.9

1205

–9.9
11.8
8.7
444

–4.0
19.2
8.5
761

11.5 27.9 39.6 49.5 54.7 51.6 42.4 32.9 17.1 –2.2
32.7 50.2 64.6 73.4 78.8 75.6 64.2 51.8 32.7 16.5
9.4
9.6
9.2
8.3
7.4
7.6
8.3
8.9 9.2
8.7
1173 1522 1744 1839 1839 1554 1110 698 444 349

2.8
20.7
10.5
571

9.1
26.6
10.3
856

22.6
39.2
11.4
1205

36.1
56.5
12.1
1490

47.7
69.4
10.7
1807

57.6 63.1 60.3 50.4 38.8 25.2 10.2
78.8 84.0 80.8 70.7 58.8 41.0 25.5
10.3 9.4
9.2
9.6 10.3 10.5 10.3
1997 1997 1712 1300 888 539 444

2.7
20.1
14.8

571

8.1
26.1
14.1
856

21.4
38.1
14.8
1173

34.5
55.2
14.8
1458

45.5
68.2
13.4
1775

55.2
77.7
12.8
1966

–2.4
18.5
10.5

539

3.7
24.8
8.3
856

17.6
37.6
11.2
1205

32.0 43.3 52.2 57.6 54.9 45.3 34.3 20.3 5.0
55.0 68.4 77.4 82.6 79.3 69.1 57.4 39.0 23.2
10.5 9.8
8.3
7.2
7.4
7.6
8.7 9.4
9.8
1490 1775 1966 1997 1712 1268 856 539 412

32.7
55.6
8.3
824

35.8 44.1 52.0 60.1 67.1 70.5 69.6 63.7 50.4 42.3 36.1
60.1 69.3 77.4 84.0 90.7 92.5 91.9 88.0 79.2 69.3 59.5

8.5
8.9
8.3
7.2
6.3
5.8
5.6
6.5
6.5 7.6
8.5
1110 1427 1744 1934 2029 1966 1839 1554 1332 951 761

33.4
56.5
7.2
824

36.7 43.5 50.9 58.8 66.0 70.0 69.3 63.9 50.5 42.4 36.7
61.2 69.6 77.4 83.7 90.0 92.1 91.8 86.9 77.7 68.5 60.1
7.6
7.8
7.2
5.8
5.1
4.7
4.7
5.4
5.1 6.3
7.2
1078 1395 1712 1871 1966 1871 1775 1522 1300 919 761

28.9
48.2
11.6
1522

39.6
61.9
11.0
1775

48.6 55.0 53.2 44.4 35.1 21.6 4.8
71.1 77.2 73.9 63.9 52.3 35.2 20.7
10.1 8.9
8.9
9.8 10.3 11.0 10.7
1902 1934 1617 1173 793 476 380

°F
mi/hr
2

Btu/ft /day
2

--`,,```,,,,````-`-`,,`,,`,`,,`---

Copyright American Petroleum Institute
Provided by IHS under license with API
No reproduction or networking permitted without license from IHS

60.1 57.6 48.6 37.6 24.4 9.3
81.9 78.8 69.8 58.3 40.8 25.0
11.0 11.0 12.1 13.2 13.9 14.1
1966 1680 1268 888 539 444

2

°F

lb/in

15.3 28.4 38.5 45.5 51.3 51.3 44.2 36.1 25.9 11.8
32.7 48.0 62.6 70.5 76.3 73.8 65.8 54.3 39.9 26.2
9.6
9.8
9.2
8.3
7.6
7.4
8.1
8.5 9.4
9.2
1236 1522 1807 1934 1902 1585 1110 698 444 380

2

°F

lb/in

4.8
23.2
8.7
824

2

°F

lb/in

4.6
21.0
9.4
507

2

°F

lb/in

Jun Jul Aug Sep Oct Nov Dec
54.3 60.3 58.8 51.4 41.5 32.7 23.4
75.6 80.2 78.1 70.9 59.0 46.0 33.6
9.4
8.9
8.7
9.4 10.5 11.9 12.1

2029 2029 1712 1300 856 507 380

2

°F

lb/in

May
45.1
66.6
10.1
1871

2

°F

lb/in

Mar
25.3
41.2
12.1
1110

2

°F

lb/in

Feb
18.0
30.7
11.4
761

2

°F

lb/in

Jan
17.8
28.8
12.5
507

2

°F

lb/in

Apr
35.4
54.5
11.9

1490

13

Not for Resale

Annual
38.7
55.6
10.7
1205
14.40
29.8
49.6
8.7
1173
14.34
35.1
54.1
8.7
1141
14.40
28.9
47.8
10.5
1173
13.98
25.9
47.7
8.7

1141
14.10
35.2
54.3
10.3
1236
14.30
33.6
53.2
13.2
1205
14.04
30.4
52.7
9.2
1205
14.18
52.0
76.5
7.4
1458
14.59
51.8
76.3
6.0
1427
14.60


14

API MPMS CHAPTER 19.4

Location
Columbia, MO

Kansas City, MO

Springfield, MO

--`,,```,,,,````-`-`,,`,,`,`,,`---

St Louis, MO

Billings, MT

Cut Bank, MT

Glasgow, MT

Great Falls, MT

Helena, MT

Kalispell, MT

Symbol
TMIN
TMAX
V

I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V

I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA

Copyright American Petroleum Institute
Provided by IHS under license with API
No reproduction or networking permitted without license from IHS

Units
°F
°F
mi/hr
2

Btu/ft /day
lb/in

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

43.9
65.1
12.1
1617

54.0 63.1 68.2 65.7 56.8
74.3 83.3 88.7 86.4 78.1
10.3 9.6
9.2
8.9
9.2
1871 2061 2093 1839 1458

20.5
41.7
11.0
761

25.0
46.2
11.0
983

34.3
57.4
12.1
1300

44.1 53.2 61.9 66.6 64.9 57.7 45.9 35.4 25.3
67.8 75.9 84.4 89.6 88.5 80.2 69.8 56.7 45.3
11.2 9.4
8.5
7.6
7.8
8.5
9.4 10.3 10.7
1649 1871 2029 2093 1871 1490 1173 793 634

20.8
37.8
11.0
698

25.2
42.6
10.7
919

35.4
54.7
11.9
1236

46.4 55.9 65.7 70.3 67.8 60.4 48.4 37.8 26.1
66.9 76.1 85.3 89.2 87.3 79.9 68.5 54.7 41.7
11.6 9.6
9.2
8.5
8.1
8.5
9.2 10.3 10.7
1585 1871 2029 2029 1807 1458 1110 729 571

13.6
31.8
14.1
539

19.4
38.7
12.3
824

25.2
45.9
11.2
1205

34.0
57.0
11.4
1585

43.3 52.0 58.3 56.7 46.6 37.6 25.5 16.5
66.7 77.5 86.7 84.7 71.6 60.6 44.4 34.3
10.5 9.6
9.4
9.4
9.8 11.0 11.6 13.2
1871 2124 2219 1934 1427 983 602 444

7.3
27.5
14.5
444

12.6
33.8
13.4
698

18.9

40.3
12.5
1110

28.2
52.2
13.4
1554

37.6
62.2
12.3
1871

45.5
71.1
11.4
2093

49.5 48.6 39.4 31.3 19.0 10.0
79.0 78.1 66.9 56.7 39.7 29.8
10.7 10.3 11.0 12.3 12.3 13.2
2188 1839 1332 888 507 349

1.2
19.9
9.8
476

7.9

27.1
10.3
729

19.0
39.7
11.4
1141

32.0
56.5
12.1
1490

42.4
67.3
12.3
1807

51.3
77.5
11.0
2061

56.7 55.2 44.1 33.3 18.9 5.5
84.7 83.5 70.3 58.6 39.6 25.0
11.0 11.0 11.2 10.5 9.6 10.1
2124 1807 1300 856 507 380

11.7

30.6
14.3
444

17.2
37.6
13.2
761

22.8
43.7
12.1
1173

31.8
55.2
12.3
1554

40.8
65.1
11.0
1839

48.6 53.2 52.2 43.5 35.8 24.3 14.5
74.7 83.3 81.7 69.6 59.4 43.5 33.1
10.3 9.6
9.6 10.5 12.3 13.9 14.3
2124 2251 1871 1363 888 539 380

9.7
29.7
6.9
476

16.0
36.9
7.6
729

22.3 30.6 39.6 48.4 53.4 51.6 41.0 31.6 20.7 11.1
44.8 56.1 65.5 75.7 84.9 83.1 69.8 58.5 42.4 31.3
8.3
9.2
8.7
8.3
7.8
7.2
7.2
6.9 6.9
6.3
1110 1522 1839 2061 2219 1871 1395 919 539 380

12.7
28.2
5.8
380

18.1
35.1

5.8
634

23.9 31.1 38.5 44.1 47.1 46.2 38.7 29.5 23.7 15.4
43.3 55.2 64.2 71.4 80.1 79.3 67.6 54.3 38.3 29.8
6.9
8.1
7.6
6.9
6.7
6.5
6.5
5.1 5.8
5.1
983 1363 1712 1934 2124 1775 1268 793 412 317

45.7
67.5
10.1
1141

33.6 21.9
52.5 38.8
10.7 10.7
729 602

2

°F
°F

mi/hr
2

Btu/ft /day
lb/in

32.5
52.9
12.3
1236

2

°F

lb/in

21.7
40.6
11.0
951

2

°F

lb/in

16.7
34.7

11.0
698

2

°F

lb/in

Jun Jul Aug Sep Oct Nov Dec
61.2 66.2 63.9 57.0 45.5 34.5 23.2
82.8 88.5 86.7 78.8 67.6 53.6 40.3
8.7
8.3
8.1
8.7
9.8 10.7 11.0
2093 2093 1871 1458 1110 729 602

2

°F

lb/in

May
53.1
74.1
9.6
1902

2

°F

lb/in

Apr
43.7
65.7
11.9
1649

2

°F

lb/in

Mar
33.1
53.2
12.3
1268

2

°F

lb/in

Feb
22.8
41.4
11.2
951

2

°F

lb/in

Jan
18.5
36.7
11.2
698

2

Not for Resale

Annual
43.5
64.0
10.1
1363
14.30
43.7

63.7
10.3
1363
14.27
44.6
66.9
9.8
1395
14.10
46.8
65.5
9.8
1332
14.46
35.8
58.3
11.2
1300
12.92
28.9
53.1
12.3
1236
12.78
30.6
54.1
10.7
1236
13.53
33.1

56.5
12.1
1268
12.88
31.3
56.7
7.6
1268
12.78
30.7
54.0
6.5
1141
13.23


EVAPORATIVE LOSS REFERENCE INFORMATION AND SPECIATION METHODOLOGY

Location
Lewistown, MT

Miles City, MT

Missoula, MT

Grand Island, NE

Norfolk, NE

North Platte, NE

Omaha, NE

Scottsbluff, NE

Elko, NV

Ely, NV

Symbol
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA

TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA
TMIN
TMAX
V
I
PA

Units
°F
°F
mi/hr
2

Btu/ft /day
lb/in
°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

°F
mi/hr
2

Btu/ft /day

22.3
44.2
11.0

1205

33.8
58.1
11.6
1554

44.6
69.1
11.4
1871

54.1 60.6 58.5 46.6 35.4 21.7 9.3
79.9 88.9 86.5 73.0 60.4 42.4 28.9
10.3 9.8
9.8 10.1 10.1 9.4
9.8
2156 2219 1902 1395 951 571 444

15.4
30.0
5.4
412

20.8
37.4
5.8
666

25.0 30.9 37.9 46.0 50.2 49.3 40.5 31.3 24.3 16.3

46.6 57.6 65.7 73.9 83.5 82.2 70.9 57.0 40.6 30.2
6.7
7.8
7.6
7.4
7.4
6.7
6.3
5.1 5.6
4.9
1015 1427 1744 1997 2188 1839 1332 856 444 349

11.1
32.5
12.1
698

16.3
38.1
11.9
951

26.2
49.3
13.4
1300

38.1
63.5
13.9

1680

49.5
73.2
12.5
1934

59.4
83.7
11.6
2188

64.8 62.1 51.6
88.5 85.8 76.3
10.3 10.1 10.7
2156 1902 1490

39.2
65.5
11.0
1110

26.2 14.9
48.7 35.8
11.6 11.6
729 602

8.4
29.7
12.5

666

14.2
34.7
11.9
919

25.0
46.2
13.4
1268

37.6
61.5
13.6
1617

49.3
72.7
12.3
1902

58.6 64.0 61.2 51.1
82.0 86.7 83.8 75.0
11.0 9.8
9.8 10.7
2124 2124 1839 1427

38.7
64.0

11.2
1046

25.5 12.7
46.9 32.7
12.1 12.1
698 539

8.6
34.5
9.4
698

14.4
40.8
9.6
983

23.0
49.8
11.6
1332

34.0
62.4
12.5
1680

44.6
71.8

11.4
1902

54.1 60.1 57.6 46.2 33.4 21.4 11.1
81.7 87.8 86.0 76.6 65.7 49.5 37.2
10.1 9.6
9.2
9.6
9.4 9.4
9.2
2156 2156 1902 1522 1141 761 602

11.1
29.7
10.3
666

16.5
35.1
10.3
919

27.9
47.7
11.4
1236

40.3 51.8 61.3 66.6 63.9 54.7 43.0 29.7 16.0
62.4 72.9 82.4 86.5 84.0 74.8 64.0 47.7 32.9
11.6 9.8

8.9
8.3
8.1
8.7
9.2 10.1 10.1
1585 1871 2124 2093 1807 1427 1046 666 539

11.8
37.9
11.4
666

16.9
43.5
11.4
951

22.1
50.4
12.3
1300

31.5
61.3
12.8
1680

13.5
36.7
5.1

666

19.9
43.0
5.8
919

25.0 29.5 36.9 44.6 50.4 48.6 38.8 29.7 22.5 14.0
50.2 59.2 69.4 80.2 91.0 88.5 78.3 65.8 49.1 37.4
6.7
7.2
6.9
6.5
6.3
6.0
5.6
5.1 5.4
4.9
1268 1680 1997 2251 2346 2093 1712 1205 729 602

9.3
39.7
9.2
824

15.4 20.7
43.5 48.4
9.4 10.1
1078 1427

41.7
70.9
11.9
1902

°F
mi/hr
2

Btu/ft /day

26.1
57.0
10.3
1839

33.6
67.3
10.3
2093

2

--`,,```,,,,````-`-`,,`,,`,`,,`---

Copyright American Petroleum Institute
Provided by IHS under license with API
No reproduction or networking permitted without license from IHS

52.7 58.6 55.9 45.7 33.6 22.5 12.9

82.0 89.8 87.3 77.2 65.5 50.2 39.6
10.5 9.4
8.9
9.4
9.6 10.1 10.5
2188 2219 1966 1554 1110 729 602

2

°F

lb/in

12.9
33.4
10.1
824

2

°F

lb/in

6.3
25.7
10.3
539

2

°F

lb/in

Jun Jul Aug Sep Oct Nov Dec
45.1 49.8 49.1 39.9 31.6 20.5 11.7
72.0 80.8 80.2 68.2 58.3 43.5 33.6
8.5
8.5
8.3
8.5
8.9 9.6 10.3
2029 2156 1839 1332 888 539 380

2

°F

lb/in

May
37.2
62.4
9.6
1807

2

°F

lb/in

Apr
28.8
52.9
10.3
1522

2

°F

lb/in

Mar
19.6
41.4
9.6
1141

2

°F

lb/in

Feb
14.2
36.0

10.3
729

2

°F

lb/in

Jan
54.9
30.9
11.2
476

2

°F

lb/in

15

Not for Resale

40.6
78.3
10.1
2378

48.0 46.6 37.2 28.2 19.0 10.6
87.1 84.4 75.2 63.5 49.3 40.6
10.1 10.1 9.6
9.2 9.2
9.2
2314 2061 1775 1300 888 698

Annual
29.7
55.0
9.4
1236
12.65
34.0
57.6
10.3
1300
13.37
32.4
56.3
6.5
1205
13.13
38.3
61.9
11.6
1395
13.78
37.2
59.7

11.6
1363
13.92
34.0
62.1
10.1
1395
13.30
40.3
60.1
9.6
1332
14.16
33.8
63.0
10.5
1395
12.75
31.1
62.4
6.0
1458
12.26
28.0
61.2
9.6
1554
11.73