Things You'll Need:
- Weather data
- Calculator
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Step 1
Know the following formula. Twc = 13.12 + 0.6215T – 11.37V^0.16 + 0.3965TV^0.16. This formula may seem very complicated at first, but it can be used to determine the wind chill as long as you have some basic knowledge of algebra.
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Step 2
Replace T with the air temperature. For this formula, you should be sure to use the temperature in degrees Celsius.
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Step 3
Replace the V with the speed of the air in kilometers per hour. If you want to use miles per hour, then there is another formula that can be used to get an accurate wind chill.
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Step 4
Do the calculations. Remember that the basic rules of algebra require you to do all multiplication before you do any addition. Also, remember that the numbers following ^ is the power of the variable before it. This means that V^16 is actually the velocity of the wind with 16 zeros between it and the decimal point.
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Step 5
Compare your calculations with the way that it feels outside, or compare them to information published by a weather service. You should do this the first few times that you perform the calculation to make sure that you are doing it correctly. If you find that you are consistently within a degree or two of the published wind chill, then you are doing the calculations correctly.
