Nortec NHTC - Manual (Page 24)

10-10
Page 16
2008-10-01
Table 4. Design Outdoor Conditions
JANUARY
Relative Humidity
(% RH)
JULY
Relative Humidity
(% RH)
State City °C
Dry
Bulb
°F
7:30
A.M.
1:30
P.M.
7:30
P.M.
Dry
Bulb
°F
7:30
A.M.
1:30
P.M.
7:30
P.M.
°C
Alabama Birmingham
Mobile -12
-12 10
10 81
--
61
--
66
--
95
95 84
90 56
64 68
78 35
35
Arizona Flagstaff
Phoenix
Yuma -23
-4
-1
-10
25
30
83
75
56 58
47
37 --
39
27
90
105
110
77
53
51 36
31
31 --
23
23
32
41
44
Arkansas Little Rock -15 5 80 67 68 95 85 55 59 35
California Eureka
Fresno
Los Angeles
Sacramento
San Diego
San Francisco -1
-4
2
-1
2
2
30
25
35
30
35
35 87
93
63
90
76
84 --
80
46
82
58
68
77
66
51
70
60
70 90
105
90
100
85
85
92
61
85
76
86
92 --
36
50
46
68
75
80
20
54
28
65
78 32
41
32
38
29
29
Colorado Denver
Grand Junction
Pueblo -23
-26
-29 -10
-15
-20 54
77
67 37
64
44 41
64
48 95
95
95 55
48
73 27
27
34 30
22
35 35
35
35
Connecticut New Haven -18 0 75 65 69 95 77 64 74 35
Delaware Wilmington -18 0 77 62 70 95 80 52 69 35
District of
Columbia Washington -18 0 73 56 64 95 78 52 64 35
Florida Jacksonville
Miami -4
2
25
35 89
87 56
59 75
75 95
91 85
83 57
64 76
76 35
33
Georgia Atlanta
Augusta
Savannah -12
-12
-7
10
10
20 80
84
83 64
59
58 69
69
72 95
98
95 83
83
85 57
55
61 68
69
80 35
37
35
Idaho Boise
Lewiston -23
-20 -10
-5
82
79 75
73 74
71 95
95 54
64 34
37 23
25 35
35
Illinois Cairo
Chicago
Peoria -18
-23
-23 0
-10
-10
81
81
83 69
70
72 --
75
77
98
95
96 83
78
81 57
51
53 --
55
58
37
35
35
Indiana Fort Wayne
Indianapolis
Terre Haute -23
-23
-18 -10
-10
0
84
83
82 75
72
70 81
78
76 95
95
95 84
84
77 53
54
50 58
60
56 35
35
35
Iowa Davenport
Sioux City -26
-29 -15
-20 --
78
--
67
--
72
95
95 --
86
--
55
--
54
35
35
Kansas Dodge City
Topeka -23
-23 -10
-10 78
78 57
64 61
67 95
100
77
85 45
54 52
54 35
38
Kentucky Louisville -18 0 78 68 69 95 77 52 57 35
Louisiana New Orleans
Shreveport -7
-7 20
20 85
83 67
67 73
66 95
100
84
86 64
56 72
62 35
38
Maine Portland -21 -5 81 65 74 90 78 58 76 32
Maryland Baltimore -18 0 72 68 56 95 71 52 65 35
Massachusetts Boston -18 0 72 59 67 92 72 55 70 33
Michigan Detroit
Grand Rapids -23
-23 -10
-10 82
85 71
78 77
80 95
95 74
76 50
51 56
54 35
35
Minnesota Duluth
Minneapolis -32
-29 -25
-20 78
82 74
72 74
75 93
95 87
82 61
54 66
54 33
35
Mississippi Vicksburg -12 10 82 65 67 95 87 61 70 35
Missouri
Kansas City
St. Louis -23
-18 -10
0
78
77 64
65 66
68 100
95
76
73 48
50 47
55 38
35
Montana Billings
Butte -32
-29 -25
-20 67
76 73
70 60
71 90
95 65
82 40
36 33
33 32
35
Nebraska North Platte
Omaha -29
-23 -20
-10 80
82 62
68 66
73 85
95 84
80 50
51 46
51 29
35
Nevada Reno -21 -5 82 67 54 95 72 25 20 35
New Hampshire Concord -26 -15 78 60 69 90 80 49 69 32