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 Release 22.0, Sept. 2008
 
Chapter : ch34. Environmental Health Section : Low Environmental Temperatures
  Wind Chill Equation

  Online Excel Online Algorithm Reference
Copyright (c) 2008-2010, Institute for Algorithmic Medicine, Houston, TX, USA. All rights reserved.

Overview :

Estimate the wind chill if only wind speed and temperature are known.

 

wind chill =

= 91.4 - ((91.4 - (temperature)) * (0.478 + (0.301* (SQRT((wind speed)))) - (0.02 * (wind speed))))

 

where:

• wind speed is in mph

• temperature is in °F

 

Limitations:

• wind speed must be >= 4 mph

• temperature must be < 92 °F

 

NOTE: The equation in the reference showed the latter half of the equation as  (0.478 + (0.301* (SQRT((wind speed) - (0.02 * (wind speed)))))). Since this did not give correct answers, adjustments were made to get the above equation.

 

  References:

Oliver JE, Fairbridge RW. The Encyclopedia of Climatology. Van Nostrand Reinhold. 1987, page 928-929

Wagner RL, Adler B Jr. The Weather Sourcebook. The Globe Pequot Press, 1994. page 80

 

 

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