Tools to help you calculate wind chill, including the exact mathematical formula.
Interactive Wind Chill Widget
Official Wind Chill is calculated using the observed sustained wind speed, not the gust. But that peak gust will make you feel even colder.
The storm track from the Pacific Ocean tends to take a northern route, diving across the central plains, then up the Ohio Valley.
I want to emphasize that this is the NOAA map for a ‘typical La Nina’ storm pattern. It is not static for the entire season.
I put the yellow box over the Mid Atlantic. We are in a region that can be on the edge of the storm track. There are other factors that can shift this south and colder for us, or west and warmer. It is possible to average a warm pattern, and still get a few strong cold storms.
From the user, we are given an air temperature (T) and a wind speed (Windsfc). In order to calculate the Wind Chill, the temperature must be converted to degrees Fahrenheit (°F).
To find out how to convert the temperature, see the link below:
Also, in order to calculate the Wind Chill, the wind speed must be converted to miles per hour (mph).
To find out how to convert the wind speed, see the link below:
Wind Speed Conversion
Then, the Wind Chill can be calculated using this formula:
WindChill = 35.74 + (0.6215 × T) − (35.75 × Wind0.16) sfc + (0.4275 × T × Wind0.16) sfc
Because the user might need the Wind Chill in Watts per meter squared m2 , it can (W) be calculated using an air temperature in degrees Celsius (°C) and a wind speed in meters per second s : (m)
WindChill = (12.1452 + 11.6222 × √Windsfc − 1.16222 × Windsfc) × (33 − T)