windchill

noun
wind·​chill | \ ˈwin(d)-ˌchil How to pronounce windchill (audio) \

Definition of windchill

: 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 The night was bitter, with the thermometer at zero degrees and a windchill of minus 10. John Reinan, Star Tribune, 26 Mar. 2021 KOTZ radio reported the temperature was minus-6 degrees at the race start, but the windchill reached 34 below. Marc Lester, Anchorage Daily News, 10 Apr. 2021 Nighttime lows will dip to -15F with a windchill bordering on dangerous at times. Star Tribune, 3 Feb. 2021 Temperatures throughout most of the region are expected to be in the 20s this morning and reach the 30s by the afternoon, but could feel colder due to windchill. BostonGlobe.com, 19 Mar. 2021 Carletta said winter storms span the Mexican border up to the Great Lakes region with windchill warnings across the entire Midwest. Paul Walsh, Star Tribune, 14 Feb. 2021 These temperatures were taken 6 feet off the ground, in weather instrument shelters, and are not windchill temperatures. Star Tribune, 28 Jan. 2021 As the sun rose over this corner of Lake Superior on Wednesday morning, the windchill was nearly 30 below. Brooks Johnson, Star Tribune, 27 Jan. 2021 One of the hardest challenges came afterward: stripping off warm layers of clothing and getting into neoprene free-diving wetsuits while the windchill hovered around minus 20 degrees. Emily Mesner, Anchorage Daily News, 21 Jan. 2021

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.

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First Known Use of windchill

1939, in the meaning defined above

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Time Traveler for windchill

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The first known use of windchill was in 1939

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Dictionary Entries Near windchill

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Cite this Entry

“Windchill.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/windchill. Accessed 4 Dec. 2021.

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More Definitions for windchill

windchill

noun

English Language Learners Definition of windchill

: the effect that wind has of making air feel colder than it actually is
: a temperature that shows how cold the air feels because of the wind

windchill

noun
wind·​chill | \ ˈwin(d)-ˌchil How to pronounce windchill (audio) \

Medical Definition of windchill

: 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

Britannica.com: Encyclopedia article about windchill

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