GWRRA Georgia Chapter S Southern Wings
Wind Chill Table
With cool weather just around the corner, use this chart to calculate the true air temperature so you can dress (layer) for optimum warmth & protection during your ride Wind Chill Table Wind speed (in mph) still air temperature (degrees F) 100 90 80 70 60 50 40 30 20 10 0 -10 -20 -30 wind chill temperature 0 100 90 80 70 60 50 40 30 20 10 0 -10 -20 -30 5 100 90 79 69 58 48 37 27 16 6 -5 -15 -26 -36 10 102 90 77 65 53 41 28 16 4 -9 -21 -33 -46 -58 15 103 90 76 63 49 36 22 9 -4 -18 -31 -45 -58 -72 20 104 89 75 61 47 33 18 4 -10 -24 -39 -53 -67 -81 25 104 89 75 60 45 30 15 1 -14 -29 -44 -59 -73 -88 30 104 89 74 59 44 28 13 -2 -17 -32 -48 -63 -78 -93 35 105 89 74 58 43 27 12 -4 -19 -35 -51 -66 -82 -97 40 105 89 73 58 42 26 10 -5 -21 -37 -53 -68 -84 -100 45 105 89 73 57 42 26 10 -6 -22 -38 -54 -70 -86 -101 50 105 89 73 57 41 25 9 -7 -23 -39 -55 -71 -86 -102 55 105 89 73 57 41 25 9 -7 -23 -39 -55 -71 -87 -103 60 105 89 73 57 41 25 9 -7 -23 -39 -55 -71 -87 -102 65 105 89 73 57 41 26 10 -6 -22 -38 -54 -70 -86 -102 70 105 89 73 58 42 26 10 -6 -21 -37 -53 -69 -85 -101 75 105 89 74 58 42 26 11 -5 -21 -36 -52 -68 -83 -99 80 105 89 74 58 43 27 12 -4 -19 -35 -50 -66 -81 -97 85 105 89 74 59 43 28 13 -3 -18 -33 -49 -64 -79 -95 Note: Wind speeds greater than 40mph add little to the effect No protection required Little danger if properly clothed Increasing Danger of freezing exposed skin Great Danger of freezing exposed skin Formula used to calculate Wind chill Wind chill = 91.4 - (0.474677 - 0.020425 * W + 0.303107 * SQRT(W)) * (91.4 - T) where W = wind speed (mph)andT = temperature (° F)
With cool weather just around the corner, use this chart to calculate the true air temperature so you can dress (layer) for optimum warmth & protection during your ride
Wind speed (in mph)
still air temperature (degrees F)
100
90
80
70
60
50
40
30
20
10
0
-10
-20
-30
wind chill temperature
5
79
69
58
48
37
27
16
6
-5
-15
-26
-36
102
77
65
53
41
28
4
-9
-21
-33
-46
-58
15
103
76
63
49
36
22
9
-4
-18
-31
-45
-72
104
89
75
61
47
33
18
-24
-39
-53
-67
-81
25
45
1
-14
-29
-44
-59
-73
-88
74
59
44
13
-2
-17
-32
-48
-63
-78
-93
35
105
43
12
-19
-35
-51
-66
-82
-97
73
42
26
-37
-68
-84
-100
57
-6
-22
-38
-54
-70
-86
-101
-7
-23
-55
-71
-102
55
-87
-103
-69
-85
11
-52
-83
-99
-50
85
-3
-49
-64
-79
-95
Note: Wind speeds greater than 40mph add little to the effect
No protection required
Little danger if properly clothed
Increasing Danger of freezing exposed skin
Great Danger of freezing exposed skin
Formula used to calculate Wind chill
Wind chill = 91.4 - (0.474677 - 0.020425 * W + 0.303107 * SQRT(W)) * (91.4 - T)
where W = wind speed (mph)andT = temperature (° F)
