wind chill index

American  

[wind chil in-deks, win-] / ˈwɪnd ˌtʃɪl ˌɪn dɛks, ˈwɪn- /

Or windchill index

noun

Meteorology.

1. a chart from which the combined effects of temperature and wind speed are formulaically calculated to determine wind chill.

   Once we hit a certain zone on the wind chill index, the risk of frostbite is apparent.

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Etymology

Origin of wind chill index

First recorded in 1935–40

Example Sentences

A kickoff temperature of about 25 degrees is forecast for the United States’ World Cup qualifier against El Salvador at Columbus, Ohio, on Jan. 27, with a wind chill index approaching what the U.S.

From Seattle Times

The NWS defines a wind chill index as the apparent temperature, plus the effect of falling temperatures and the rate of heat loss from a human body, caused by the wind.

From Fox News

And in Duluth, Minn., a city known for bitterly cold winters, the wind chill index dropped to 36 below zero.

From Washington Post

Dr. Bluestein, a scientist, realized something one winter day: The wind chill index was wrong.

From New York Times

The result is the wind chill index, a number that tells us how cold it feels rather than simply how cold it is.

From New York Times