Wind Chill (from the Old Farmer's Almanac)

Temperature
50 41 32 23 14 5 -4 -13 -22 -31 -40 -49 -58
MPH Equivalent Temperature
5 48 39 28 19 10 1 -9 -18 -27 -36 -51 -56 -65
10 41 30 18 7 -4 -15 -26 -36 -49 -60 -71 -81 -92
20 32 19 7 -6 -18 -31 -44 -58 -71 -83 -96 -108 -121
30 28 14 1 -13 -27 -40 -54 -69 -81 -96 -108 -123 -137
40 27 12 -2 -17 -31 -45 -60 -74 -89 -103 -116 -130 -144
50 25 10 -4 -18 -33 -47 -62 -75 -90 -105 -119 -134 -148

A JavaScript wind chill calculator:   (by me)

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Enter the temperature: °F     Enter the wind speed: MPH        

Result: °F


For the mathematically curious, the equation used is
0.0817*((3.71*sqrt(v)) + 5.81 -(0.25*v))*(t - 91.4) + 91.4
where the wind speed (MPH) is v and the ambient temperature (Farenheit) is f

This page last updated 2/2/98 (Ground Hog Day!)

AB1JX / calcs