(Based on ASHRAE Handbook 1981 Fundamentals Design Dry Bulb with Co-incident Wet Bulb 1% scale)
The following table includes climate design conditions for selected cities around the USA. The co-incident Dry Bulb/Wet Bulb temperatures are those not exceeded more than 1% of the time for a four (4) month period, June through September. The Design Wet Bulb (DWb) is representative of Wet Bulb alone not exceeding shown temperature more than 1% of the time during the same 4 months and not co-incident with Dry Bulb temperature.
| State & Station | Elev | Design Condition | -- | State & Station | Elev | Design Condition | ||||
|---|---|---|---|---|---|---|---|---|---|---|
- |
Feet | Db | Wb | DWb | -- | - |
Feet | Db | Wb | DWb |
| Alabama: | - |
- |
- |
- |
-- | Alaska: | - |
- |
- |
- |
| Auburn | 730 |
96 |
77 |
79 |
-- | Anchorage AP | 90 |
71 |
59 |
60 |
| Birmingham AP | 610 |
96 |
74 |
78 |
-- | Fairbanks AP | 436 |
82 |
62 |
64 |
| Decatur | 580 |
95 |
75 |
78 |
-- | Arizona: |
- |
- |
- |
- |
| Dothan AP | 321 |
94 |
76 |
80 |
-- | Douglas AP | 4098 |
98 |
63 |
70 |
| Florence AP | 528 |
97 |
74 |
78 |
-- | Flagstaff AP | 6973 |
84 |
55 |
61 |
| Gadsden | 570 |
96 |
75 |
78 |
-- | Kingman AP | 3446 |
103 |
65 |
70 |
| Huntsville AP | 619 |
95 |
75 |
78 |
-- | Nogales | 3800 |
99 |
64 |
71 |
| Mobile AP | 211 |
95 |
77 |
80 |
-- | Phoenix AP | 1117 |
109 |
71 |
76 |
| Montgomery AP | 195 |
96 |
76 |
79 |
-- | Prescott AP | 5014 |
96 |
61 |
66 |
| Talladega | 565 |
97 |
77 |
79 |
-- | Tucson AP | 2584 |
104 |
66 |
72 |
| Tuscaloosa AP | 170 |
98 |
75 |
79 |
-- | Winslow AP | 4880 |
97 |
61 |
66 |
| Arkansas: | - |
- |
- |
- |
-- | Yuma AP | 199 |
111 |
72 |
79 |
| Fort Smith AP | 449 |
101 |
75 |
80 |
-- | California: |
- |
- |
- |
- |
| Hot Springs | 535 |
101 |
77 |
80 |
-- | Bakersfield AP | 495 |
104 |
70 |
73 |
| Little Rock AP | 257 |
99 |
76 |
80 |
-- | Barstow AP | 2142 |
106 |
68 |
73 |
| Texarkana AP | 361 |
98 |
76 |
80 |
-- | Blythe AP | 390 |
112 |
71 |
75 |
Colorado: |
- |
- |
- |
- |
-- | Burbank AP | 699 |
95 |
68 |
71 |
| Boulder | 5385 |
93 |
59 |
64 |
-- | Chico | 205 |
103 |
69 |
71 |
| Colorado Springs AP | 6173 |
91 |
58 |
63 |
-- | El Centro AP | -30 |
112 |
74 |
81 |
| Denver AP | 5283 |
93 |
59 |
64 |
-- | Eureaka AP | 217 |
68 |
60 |
62 |
| Pueblo AP | 4639 |
97 |
61 |
67 |
-- | Fresno AP | 326 |
102 |
70 |
72 |
Idaho: |
- |
- |
- |
- |
-- | Los Angeles AP | 99 |
83 |
68 |
70 |
| Boise AP | 2842 |
96 |
65 |
68 |
-- | Needles AP | 913 |
112 |
71 |
75 |
| Idaho Falls AP | 4730 |
89 |
61 |
65 |
-- | Oakland AP | 3 |
85 |
64 |
66 |
| Lewiston AP | 1413 |
96 |
65 |
67 |
-- | Palm Springs | 411 |
112 |
71 |
76 |
| Pocatello AP | 4444 |
94 |
61 |
64 |
-- | Pasadena | 864 |
98 |
69 |
73 |
| Twin Falls AP | 4148 |
99 |
62 |
64 |
-- | Pomona | 871 |
102 |
70 |
74 |
| Illinois: | - |
- |
- |
- |
-- | Riverside | 1511 |
100 |
68 |
72 |
| Champaign | 743 |
95 |
75 |
78 |
-- | Sacramento AP | 17 |
101 |
70 |
72 |
| Chicago CO | 594 |
94 |
75 |
79 |
-- | San Bernardino | 1125 |
102 |
70 |
74 |
| Danville | 558 |
93 |
75 |
78 |
-- | San Diego AP | 19 |
83 |
69 |
71 |
| Joliet | 588 |
93 |
75 |
78 |
-- | San Francisco AP | 8 |
82 |
64 |
65 |
| Peoria AP | 652 |
91 |
75 |
78 |
-- | San Jose AP | 70 |
85 |
66 |
68 |
| Rantoul | 740 |
94 |
75 |
78 |
-- | Santa Ana AP | 115 |
89 |
69 |
71 |
| Indiana: | - |
- |
- |
- |
-- | Stockton AP | 28 |
100 |
69 |
71 |
| Anderson | 847 |
95 |
76 |
79 |
-- | Iowa: | - |
- |
- |
- |
| Bloomington | 820 |
95 |
76 |
79 |
-- | Cedar Rapids AP | 863 |
91 |
76 |
78 |
| Columbus | 661 |
95 |
76 |
79 |
-- | Des Moines AP | 948 |
94 |
75 |
78 |
| Fort Wayne AP | 791 |
92 |
73 |
77 |
-- | Sioux City AP | 1095 |
95 |
74 |
78 |
| Indianapolis AP | 793 |
92 |
74 |
78 |
-- | Kansas: |
- |
- |
- |
- |
Kentucky: |
- |
- |
- |
- |
-- | Topeka AP | 877 |
99 |
75 |
79 |
| Lexington AP | 979 |
93 |
73 |
77 |
-- | Witchita AP | 1321 |
101 |
72 |
77 |
| Louisville AP | 474 |
95 |
74 |
79 |
-- | Michigan: |
- |
- |
- |
- |
Missouri: |
- |
- |
- |
- |
-- | Detroit | 633 |
91 |
73 |
76 |
| Farmington AP | 928 |
96 |
76 |
78 |
-- | Grand Rapids AP | 681 |
91 |
72 |
75 |
| St Joseph AP | 809 |
96 |
77 |
81 |
-- | Pontiac | 974 |
90 |
73 |
76 |
| St Louis CO | 465 |
98 |
75 |
78 |
-- | Montana: |
- |
- |
- |
- |
Nebraska: |
- |
- |
- |
- |
-- | Billings AP | 3567 |
94 |
64 |
67 |
| N. Platte AP | 2779 |
97 |
69 |
74 |
-- | Butte AP | 5526 |
86 |
58 |
60 |
| Omaha AP | 978 |
94 |
76 |
78 |
-- | Great Falls AP | 3664 |
91 |
60 |
64 |
Nevada: |
- |
- |
- |
- |
-- | Helena AP | 3893 |
91 |
60 |
64 |
| Las Vegas AP | 2162 |
108 |
66 |
71 |
-- | New Mexico: |
- |
- |
- |
- |
| Reno CO | 4490 |
96 |
61 |
64 |
-- | Albuquerque AP | 5310 |
96 |
61 |
66 |
North Dakota: |
- |
- |
- |
- |
-- | Clovis AP | 4279 | 95 |
65 |
69 |
| Bismark AP | 1647 |
95 |
68 |
73 |
-- | Farmington AP | 5495 |
95 |
63 |
67 |
| Fargo AP | 900 |
92 |
73 |
76 |
-- | Gallup | 6465 |
90 |
59 |
64 |
Ohio: |
- |
- |
- |
- |
-- | Los Alamos | 7410 | 89 |
60 |
62 |
| Akron AP | 1210 |
89 |
72 |
75 |
-- | Santa Fe CO | 7045 |
90 |
61 |
63 |
| Cincinnati CO | 761 |
92 |
73 |
77 |
-- | Oklahoma: |
- |
- |
- |
- |
| Cleveland AP | 777 |
91 |
73 |
76 |
-- | Norman | 1109 | 99 |
74 |
77 |
Oregon: |
- |
- |
- |
- |
-- | Oklahoma City AP | 1280 |
100 |
74 |
78 |
| Corvallis | 221 |
92 |
67 |
69 |
-- | Tulsa AP | 650 |
101 |
74 |
79 |
| Klamath Falls AP | 4091 |
90 |
61 |
63 |
-- | South Dakota: |
- |
- |
- |
- |
| Portland CO | 57 |
90 |
68 |
69 |
-- | Rapid City AP | 3165 |
95 |
66 |
71 |
Tennessee: |
- |
- |
- |
- |
-- | Sioux Falls AP | 1420 |
94 |
73 |
76 |
| Knoxville AP | 980 |
94 |
74 |
77 |
-- | Texas: |
- |
- |
- |
- |
| Memphis AP | 263 | 98 |
77 |
80 |
-- | Abilene AP | 1759 |
101 |
71 |
75 |
| Nashville AP | 577 |
97 |
75 |
78 |
-- | Amarillo AP | 3607 |
98 |
67 |
71 |
Utah: |
- |
- |
- |
- |
-- | Austin AP | 597 | 100 |
74 |
78 |
| Ogden AP | 4455 |
93 |
63 |
66 |
-- | Beaumont | 18 |
95 |
79 |
81 |
| Provo | 4470 |
98 |
62 |
66 |
-- | Brownsville AP | 16 |
94 |
77 |
80 |
| Salt Lake City AP | 4220 |
97 |
62 |
66 |
-- | Dallas AP | 481 |
102 |
75 |
78 |
Washington: |
- |
- |
- |
- |
-- | El Paso AP | 3918 |
100 |
64 |
69 |
| Longview | 12 |
88 |
68 |
69 |
-- | Houston CO | 158 |
97 |
77 |
80 |
| Larson AFB | 1183 |
97 |
66 |
67 |
-- | San Antonio AP | 792 |
99 |
72 |
77 |
| Spokane AP | 2357 |
93 |
64 |
65 |
-- | Wyoming: |
- |
- |
- |
- |
| Yakima AP | 1061 |
96 |
65 |
68 |
-- | Casper AP | 5319 |
92 |
58 |
63 |
Note: Climate conditions above are shown for the convenience of the user and accuracy is not guaranteed for system design. Latest climate data reported from the Weather Service location involved should be consulted for the greatest accuracy for the current period.