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

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 Combined with high temperatures, high dew points lead to extreme heat index. Angela Fritz, Washington Post, "Denver just tied its all-time temperature record. This heat wave is just getting started.," 29 June 2018 With dew points forecast to remain in the 50s, temperatures Sunday afternoon are slated to soar to near 90 degrees across portions of the metro area. Tom Skilling,, "Tropical air to return to start the workweek," 7 July 2018 Afternoon highs should cluster near 90 degrees Sunday and, coupled with dew points in the 70s, peak afternoon heat indexes should reach the middle and upper 90s. Tom Skilling,, "Warm and muggy through Monday, then comfortably cooler," 14 July 2018 High pressure will bring mostly sunny skies and very low humidity Thursday with the dew point in the lower 50s and temperatures in the upper 70s to the mid-80s, perfect for a trip to the shoreline or just about any other outdoor activity. Gary Lessor,, "Connecticut Weather For Thursday, July 12, 2018 By Gary Lessor," 11 July 2018 Confidence: High Tomorrow night: As winds come more from the south, humidity makes more of a comeback with dew points climbing to near or past 60. Brian Jackson, Washington Post, "D.C.-area forecast: Holding summer at bay for one more day," 8 July 2018 The humidity has added to the discomfort, with dew points reaching the 70s on several days. Dave Epstein,, "Is Boston’s heat wave really that unusual?," 5 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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Statistics for dew point

Last Updated

8 Oct 2018

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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

: 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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Comments on dew point

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a generally accepted meaning of a word

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