windchill

noun

wind·​chill ˈwin(d)-ˌchil How to pronounce windchill (audio)
: a still-air temperature that would have the same cooling effect on exposed human skin as a given combination of temperature and wind speed

called also chill factor, windchill factor, windchill index

Example Sentences

It's cold outside, and it feels even colder because of the windchill. Expect windchills in the 20s tonight.
Recent Examples on the Web Considering the extreme windchill and the blowing snow, things could have gone downhill fast. Marc Lester, Anchorage Daily News, 16 Apr. 2022 Several hundred miles later, Benerofe bailed on the famous Franconia Ridge in New Hampshire the day after a blizzard to wait out the relentless windchill in a hostel below. Outside Online, 6 July 2022 Bad for truckers, but those in cars have likely had an even more miserable night in single-digit windchill. Greg Norman, Fox News, 5 Feb. 2022 Morning temps will hover around twenty-four degrees Fahrenheit with a windchill of negative ten. Claire Friedman, The New Yorker, 21 Apr. 2022 Consumers Energy suspends or cancels shut-offs when temperatures are above 90 degrees or below 15 degrees or when the windchill is below 0 degrees. Alyssa Johnson, ProPublica, 18 Mar. 2022 While Tuesday will be sunny during the day, temperatures will fall to the low 20s at night but will feel like 15 degrees with the windchill, said Daniel Hartsock, weather forecaster for the National Weather Service in Portland. oregonlive, 22 Feb. 2022 Temperatures dipped to 3 degrees Fahrenheit on some days, or -9 with the windchill. The Salt Lake Tribune, 27 Feb. 2022 With windchill, temperatures dipped to minus 27 degrees Fahrenheit. Los Angeles Times, 18 Feb. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'windchill.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1939, in the meaning defined above

Time Traveler
The first known use of windchill was in 1939

Dictionary Entries Near windchill

Cite this Entry

“Windchill.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/windchill. Accessed 20 Dec. 2022.

Kids Definition

windchill

noun
wind·​chill -ˌchil How to pronounce windchill (audio)
: a still-air temperature that would have the same cooling effect on exposed human flesh as a given combination of temperature and wind speed

called also windchill factor, windchill index

Medical Definition

windchill

noun
wind·​chill ˈwin(d)-ˌchil How to pronounce windchill (audio)
: a still-air temperature that would have the same cooling effect on exposed human skin as a given combination of temperature and wind speed

called also chill factor, windchill factor, windchill index

More from Merriam-Webster on windchill

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