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Design Design Ground
Dry Bulb Wet Bulb Temp.
State City ºF. ºC. ºF. ºC. ºF. ºC.
Alabama Birmingham 95 35 78 26 70 21
Mobile 95 35 80 27 75 24
Alaska Fairbanks 82 28 64 18 40 4
Arizona Phoenix 105 41 76 24 80 27
Tucson 105 41 72 22 80 27
Yuma 110 43 78 26 80 27
Arkansas Little Rock 95 35 78 26 70 21
California Bakerseld 105 41 70 21 75 24
Fresno 105 41 74 23 80 27
Los Angeles 85 29 65 18 65 18
San Francisco 85 29 65 18 65 18
Colorado Denver 95 35 64 18 60 16
Connecticut Hartford 93 34 75 24 65 18
New Heaven 95 35 75 24 65 18
Delaware Wilmington 95 35 78 26 65 18
Dist. of Col. Washington 95 35 78 26 65 18
Florida Jacksonville 95 35 78 26 80 27
Miami 91 33 79 26 80 27
Tampa 95 35 78 26 80 27
Georgia Atlanta 95 35 76 24 72 21
Augusta 98 37 76 24 75 24
Savannah 95 35 78 26 75 24
Hawaii Honolulu 85 29 73 23 80 27
Idaho Boise 95 35 65 18 60 16
Illinois Chicago 95 35 75 24 60 16
Peoria 96 36 76 24 60 16
Indiana Fort Wayne 95 35 75 24 60 16
Indianapolis 95 35 76 24 60 16
Iowa Des Moines 95 35 78 26 60 16
Sioux City 95 35 78 26 60 16
Kansas Topeka 100 38 78 26 60 16
Wichita 100 38 75 24 60 16
Kentucky Louisville 95 35 78 26 65 18
Louisiana New Orleans 95 35 80 27 75 24
Shreveport 100 38 78 26 70 21
Maine Portland 90 32 73 23 60 16
Maryland Baltimore 95 35 78 26 65 18
Cumberland 95 35 75 24 65 18
Mass. Boston 92 33 75 24 65 18
Springeld 93 34 75 24 65 18
Michigan Detroit 95 35 75 24 60 16
Grand Rap. 95 35 75 24 60 16
Saginaw 95 35 75 24 60 16
Minnesota Minneapolis 92 33 77 25 60 16
Mississippi Vicksburg 95 35 78 26 75 24
Missouri Kansas City 100 38 76 24 60 16
St. Louis 95 35 78 26 60 16
Montana Helena 95 35 67 19 55 13
Table 21
Summer outside air and ground temperature design conditions
Design Design Ground
Dry Bulb Wet Bulb Temp.
State City ºF. ºC. ºF. ºC. ºF. ºC.
Nebraska Omaha 95 35 78 26 60 16
Nevada Reno 95 35 65 18 65 18
New Hamp. Concord 90 32 73 23 55 13
New Jersey Atlantic City 95 35 78 26 65 18
Newark 95 35 75 24 65 18
Trenton 95 35 78 26 65 18
New Mexico Santa Fe 90 32 65 18 65 18
New York Albany 93 34 75 24 60 16
Bualo 93 34 73 23 65 18
New York 95 35 75 24 65 18
N. Carolina Asheville 93 34 75 24 70 21
Charlotte 95 35 78 26 70 21
Raleigh 95 35 78 26 70 21
North Dakota Bismarck 95 35 73 23 50 10
Ohio Cincinnati 95 35 78 26 65 18
Cleveland 95 35 75 24 65 18
Columbus 95 35 76 24 60 16
Toledo 95 35 75 24 65 18
Oklahoma Okla. City 101 38 77 25 65 18
Tulsa 101 38 77 25 65 18
Oregon Portland 90 32 68 20 70 21
Pennsylvania Erie 93 34 75 24 65 18
Philadelphia 95 35 78 26 70 21
Pittsburgh 95 35 75 24 65 18
Scranton 95 35 75 24 65 18
Rhode Island Providence 93 34 75 24 65 18
S. Carolina Charleston 95 35 75 26 75 24
Greenville 95 35 76 24 75 24
South Dakota Sioux Falls 95 35 75 24 55 13
Tennessee Chattanooga 95 35 76 24 70 21
Knoxville 95 35 75 24 70 21
Memphis 95 35 78 26 70 21
Nashville 95 35 78 26 70 21
Texas Amarillo 100 38 72 22 70 21
Dallas 100 38 78 26 70 21
El Paso 100 38 69 21 70 21
Galveston 95 35 80 27 75 24
Houston 95 35 80 27 75 24
San Antonio 100 38 78 26 75 24
Utah Salt Lake City 95 35 65 18 60 16
Vermont Burlington 90 32 73 23 60 16
Virginia Norfolk 95 35 78 26 75 24
Richmond 95 35 78 26 70 21
Roanoke 95 35 76 24 70 21
Washington Seattle 85 29 65 18 75 24
Spokane 93 34 65 18 60 16
West Virginia Charleston 95 35 75 24 65 18
Wheeling 95 35 75 24 65 18
Wisconsin Green Bay 95 35 75 24 55 13
Milwaukee 95 35 75 24 55 13
Wyoming Cheyenne 95 35 65 18 55 13
Extracted by permission from Handbook of Air Conditioning, Heating and
Ventilation. Second Edition, by Strock and Koral, Industrial Press.