Windchill Index

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Temperature

Wind Speed (mph)
°C °F 5 10 15 20 25 30 35 40 45 50 55 60
-42 -45 -63 -72 -77 -81 -84 -87 -89 -91 -93 -95 -97 -98
-40 -40 -57 -66 -71 -74 -78 -80 -82 -84 -86 -88 -89 -91
-37 -35 -52 -59 -64 -68 -71 -73 -76 -78 -79 -81 -82 -84
-34 -30 -46 -53 -58 -61 -64 -67 -69 -71 -72 -74 -75 -76
-32 -25 -40 -47 -51 -55 -58 -60 -62 -64 -65 -67 -68 -69
-29 -20 -34 -41 -45 -48 -51 -53 -55 -57 -58 -60 -61 -62
-26 -15 -28 -35 -39 -42 -44 -46 -48 -50 -51 -52 -54 -55
-23 -10 -22 -28 -32 -35 -37 -39 -41 -43 -44 -45 -46 -48
-21 -5 -16 -22 -26 -29 -31 -33 -34 -36 -37 -38 -39 -40
-18 0 -11 -16 -19 -22 -24 -26 -27 -29 -30 -31 -32 -33
-15 5 -5 -10 -13 -15 -17 -19 -21 -22 -23 -24 -25 -26
-12 10 1 -4 -7 -9 -11 -12 -14 -15 -16 -17 -18 -19
-9 15 7 3 0 -2 -4 -5 -7 -8 -9 -10 -11 -11
 -7 20 13 9 6 4 3 1 0 -1 -2 -3 -3 -4
-4 25 19 15 13 11 9 8 7 6 5 4 4 3
-1 30 25 21 19 17 16 15 14 13 12 12 11 10
2 35 31 27 25 24 23 22 21 20 19 19 18 17
4 40 36 34 32 30 29 28 28 27 26 26 25 25

Frostbite occurs in: 
< 30 min < 10 min < 5 min


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