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

Photo: Getty Frigid air is expected to sweep through the tri-state region Thursday morning, with windchills reaching 14 degrees-Fahrenheit below zero in New York City, increasing the risk for frostbite and hypothermia. Joseph De Avila, WSJ, "New York Area Battens Down for Arctic Blast," 30 Jan. 2019 The icy blast prompted governors to declare states of emergency in Wisconsin, Michigan and Illinois as windchill temperatures fell to minus 50 degrees Fahrenheit across much of the Chicago area and near minus 70 across parts of the upper Midwest. Douglas Belkin, WSJ, "Temperatures Plunge to Lowest Levels in Decades as Polar Vortex Hits Midwest," 30 Jan. 2019 She was bundled up in a hat, scarf and two coats to stay warm in the below-zero windchill Wednesday. Justin L. Mack, Indianapolis Star, "Sam's Club closings come with massive lines and deep discounts at Indianapolis stores," 17 Jan. 2018 TODAY NETWORK-Wisconsin When the windchill is expected to hit 30 below, everything that matters is all about cold. Detroit Free Press Staff, Detroit Free Press, "Frozen pipes to frozen bubbles: It's all about the cold," 3 Jan. 2018 Winds out of the north, including gusts of up to 26 miles per hour, made Sunday feel even chillier, with windchill dropping temperatures into the high 40s, according to the service. Debora Almeida And Andrew Grant, BostonGlobe.com, "Non-profit aims to get girls in the game," 28 May 2018 Take advantage of this zero-windchill time to get planting. Lynn Petrak, chicagotribune.com, "Petrak: Garden planting a sure sign of spring in La Grange, Western Springs," 26 Apr. 2018 Of course, as Miller reminds us, the windchill outside is far below zero, and at 9 p.m., the Antarctic summer sun is high in the sky, so outside activities are rarely an option. Sophie Weiner, Popular Mechanics, "An Antarctic Research Station's Living Quarters Are Surprisingly Comfy," 3 Mar. 2017 And the 10-degree cutoff doesn't count the windchill. Chris Sims, Indianapolis Star, "9 stories you may have missed over the holidays," 2 Jan. 2018

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.

See More

First Known Use of windchill

1939, in the meaning defined above

Keep scrolling for more

Learn More about windchill

Statistics for windchill

Last Updated

12 Mar 2019

Look-up Popularity

Time Traveler for windchill

The first known use of windchill was in 1939

See more words from the same year

Keep scrolling for more

More Definitions for windchill

windchill

noun

English Language Learners Definition of windchill

chiefly US
: 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

Rhyming Dictionary: Words that rhyme with windchill

Britannica.com: Encyclopedia article about windchill

Comments on windchill

What made you want to look up windchill? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to affect and impair by alcohol or a drug

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Latin Quiz

  • roman forum
  • Which of the following months comes from a Latin word for “ten”?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Syn City

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!