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

Examples of windchill in a Sentence

It's cold outside, and it feels even colder because of the windchill. Expect windchills in the 20s tonight.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
However, windchills are forecasted to remain just below freezing, meaning at least some of the snow should stick around. Claire Reid, Journal Sentinel, 24 Dec. 2024 As snow continues to fall, temperatures are expected to hit single digits Monday and Tuesday evening with sub-freezing windchills. Evan Mealins, The Tennessean, 15 Jan. 2024 Current conditions at O’Hare International Airport are mostly cloudy at 29 degrees and a windchill of negative two degrees. Deanese Williams-Harris, Chicago Tribune, 11 Dec. 2024 Temperatures will climb to the mid-20s by Thursday afternoon, with windchills feeling like the low teens. Claire Reid, Journal Sentinel, 4 Dec. 2024 See all Example Sentences for windchill 

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 1 Jan. 2025.

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

Last Updated: - Updated example sentences
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