Wind Chill

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Wind Chill temperature is what temperature it feels like when the wind starts to blow. You know how it always feels much colder, on a cool or cold day, when the wind starts to blow and goes right through you!

Notice that at warmer air temperatures, the wind chill effect is only a drop of a few degrees, but at 0 degrees, it can feel like -11 degrees in a 20 mph wind.

 

Wind Speed mph

air temperature
deg C

5 10 15 20 25 30 35 40
20 20 18 16 15 15 14 14 14
15 15 12 10 9 8 7 7 6
10 10 6 4 2 1 0 -1 -1
5 5 0 -3 -5 -6 -7 -8 -9
0 0 -6 -9 -11 -13 -14 -15 -16
-5 -5 -11 -15 -18 -20 -22 -23 -23
-10 -10 -17 -22 -25 -27 -29 -30 -31
-15 -15 -23 -28 -32 -34 -36 -37 -38
-20 -20 -29 -34 -38 -41 -43 -45 -46

Yes there is a formula for wind chill on an Excel file you can download, just right mouse click on this link and Save Target As...

Put your own air temperature and wind speed into the blue boxes, then the dew point will be calculated in the yellow box.  The table above is based on the this calculation.

 

 

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