The formula to calculate wind chill is the following: 35.74 + 0.6215T – 35.75(V^0.16) + 0.4275T(V^0.16), where T represents the air temperature in Fahrenheit and V represents the wind speed in miles per hour. Wind chill temperatures were invented to give the general population a better feel for the weather.
To calculate the wind chill, the air temperature in Fahrenheit and the wind speed in miles per hour must be known. Replace the appropriate variables to calculate the final wind chill in degrees Fahrenheit.
When high winds are present, the temperature outside may feel colder than it actually is, as the winds draw heat away from the body. Calculating wind chill gives a person a better idea of what temperature to expect to prepare appropriately.