do you guys know of any easier way to calculate wind chill, I have a simpler equation WC = Temp - Wind Speed/4, but this is for Celcius and km/hour, so I would need to the the conversions for that. which might be possibly, might but I don't know if I have enough time in the day to do that.
It is clear looking from looking at a windchill chart that that is not a good approximation.
**broken link removed**
The windchill for a 5 mph wind is 4 degrees lower at 40F, 11 degrees lower at 0F and 17 degrees lower at -40F. Also at 0F a 5 mph wind lowers the windchill by 11 degrees, but a 60 mph wind lowers the windchill by 33 degrees, 3 times as much not 12 times as much.
The best way is a 2-d table lookup using temperature and wind speed as indices. Compute the table enties using the formula that you gave earlier:
windchill = 35.74+0.6215T-35.75(V^0.16)+0.4275T(V^0.16)
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