dew point


Definition of dew point

: the temperature at which a vapor (such as water) begins or would begin to condense

Examples of dew point in a Sentence

It's 78° outside and the dew point is 63°.

Recent Examples on the Web

Computer software receives weather data and alters fog flow to suit wind speeds, dew point, temperature, and humidity. Graham Ambrose,, "‘Fog sculptures’ to adorn Emerald Necklace," 24 June 2018 With record high temperatures and dew points in the 70s, dangerous heat index values in excess of 105 degrees are expected Sunday. Tom Skilling,, "Excessive heat, record highs expected Sunday," 16 June 2018 Memphis hit 91 degrees around noon, and the dew point was 75, leading to oppressive humidity. Greg Porter, Washington Post, "This mesmerizing storm makes it look like a bomb went off over Memphis last night," 13 July 2018 Tropical dew points really amplify the temperatures around 90 to perhaps mid-90s. A. Camden Walker, Washington Post, "D.C.-area forecast: Un-muggy heat through tomorrow, but then we turn steamy and wetter into next week," 13 July 2018 Riding a modest southeast wind flow, dew points rose as high as 78 at Peru and 77 at Morris and Joliet. Tom Skilling,, "Steamy Fourth could feature natural fireworks," 3 July 2018 Humid air will filter back into the region Sunday night and Monday, gradually raising dew points to the low 70s. Tom Skilling,, "Tropical air to return to start the workweek," 7 July 2018 High temperatures Wednesday will be in the 80s and the dew point will drop through the 50s. Gary Lessor,, "Possible Lingering Storms As Overnight Cold Front Cools Things Off Wednesday," 10 July 2018 With temperatures in the 90s, and dew points rising to nearly 70 degrees, clouds are expected to build through the day. Tom Skilling,, "Clouds to return as heat, humidity levels rise," 8 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dew point.' 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 dew point

1826, in the meaning defined above

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Last Updated

26 Feb 2019

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Time Traveler for dew point

The first known use of dew point was in 1826

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More Definitions for dew point

dew point


English Language Learners Definition of dew point

technical : the temperature at which the moisture in the air forms visible drops of water : the temperature at which dew forms

dew point


Kids Definition of dew point

: the temperature at which the moisture in the air begins to turn to dew

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More from Merriam-Webster on dew point

Rhyming Dictionary: Words that rhyme with dew point

Spanish Central: Translation of dew point

Nglish: Translation of dew point for Spanish Speakers

Comments on dew point

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


to corrupt or become corrupted

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