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Page 23
2008-10-01
Table 1. Weather Design Data
JANUARY
Temperature
JANUARY
Relative Humidity (% RH)
JULY
Temperature
JULY
Relative Humidity (% RH)
State/Province City
Dry
Bulb
°F
Dry
Bulb
°C
7:30
A.M.
1:30
P.M.
7:30
P.M.
Dry
Bulb
°F
Dry
Bulb
°C
7:30
A.M.
1:30
P.M.
7:30
P.M.
A
labama Birmingham 10 -12 81 61 66 95 35 84 56 68
Mobile 10 -12 -- -- -- 95 35 90 64 78
A
rizona Flagstaff -10 -23 83 58 -- 90 32 77 36 --
Phoenix 25 -4 75 47 39 105 41 53 31 23
Yuma 30 -1 56 37 27 110 44 51 31 23
A
rkansas Little Rock 5 -15 80 67 68 95 35 85 55 59
California Eureka 30 -1 87 -- 77 90 32 92 -- 80
Fresno 25 -4 93 80 66 105 41 61 36 20
Los Angeles 35 2 63 46 51 90 32 85 50 54
Sacramento 30 -1 90 82 70 100 38 76 46 28
San Diego 35 2 76 58 60 85 29 86 68 65
San Francisco 35 2 84 68 70 85 29 92 75 78
Colorado Denver -10 -23 54 37 41 95 35 55 27 30
Grand Junction -15 -26 77 64 64 95 35 48 27 22
Pueblo -20 -29 67 44 48 95 35 73 34 35
Connecticut New Haven 0 -18 75 65 69 95 35 77 64 74
Delaware Wilmington 0 -18 77 62 70 95 35 80 52 69
District of Columbia Washington 0 -18 73 56 64 95 35 78 52 64
Florida Jacksonville 25 -4 89 56 75 95 35 85 57 76
Miami 35 2 87 59 75 91 33 83 64 76
Georgia Atlanta 10 -12 80 64 69 95 35 83 57 68
Augusta 10 -12 84 59 69 98 37 83 55 69
Savannah 20 -7 83 58 72 95 35 85 61 80
Idaho Boise -10 -23 82 75 74 95 35 54 34 23
Lewiston -5 -20 79 73 71 95 35 64 37 25
Illinois Cairo 0 -18 81 69 -- 98 37 83 57 --
Chicago -10 -23 81 70 75 95 35 78 51 55
Peoria -10 -23 83 72 77 96 35 81 53 58
Indiana Fort Wayne -10 -23 84 75 81 95 35 84 53 58
Indianapolis -10 -23 83 72 78 95 35 84 54 60
Terre Haute 0 -18 82 70 76 95 35 77 50 56
Iowa Davenport -15 -26 -- -- -- 95 35 -- -- --
Sioux City -20 -29 78 67 72 95 35 86 55 54
Kansas Dodge City -10 -23 78 57 61 95 35 77 45 52
Topeka -10 -23 78 64 67 100 38 85 54 54
Kentucky Louisville 0 -18 78 68 69 95 35 77 52 57
Louisiana New Orleans 20 -7 85 67 73 95 35 84 64 72
Shreveport 20 -7 83 67 66 100 38 86 56 62
Maine Portland -5 -21 81 65 74 90 32 78 58 76
Maryland Baltimore 0 -18 72 68 56 95 35 71 52 65
Massachusetts Boston 0 -18 72 59 67 92 33 72 55 70
Michigan Detroit -10 -23 82 71 77 95 35 74 50 56
Grande Rapids -10 -23 85 78 80 95 35 76 51 54
Minnesota Duluth -25 -32 78 74 74 93 33 87 61 66
Minneapolis -20 -29 82 72 75 95 35 82 54 54
Mississippi Vicksburg 10 -12 82 65 67 95 35 87 61 70