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 Much drier dew points allow us to dry out quickly from recent rains. Matt Rogers, Washington Post, "D.C.-area forecast: Colder and breezy into New Year’s holiday with rain returning Thursday night," 31 Dec. 2019 This could expend although no word yet on dew points, snowfall amounts or formation of bomb cyclones. NBC News, "Macy’s to temporarily close all stores," 17 Mar. 2020 The dew point, a measure of humidity, reached 70 degrees Thursday afternoon, a level typical for hot and muggy summer days. Mckenna Oxenden,, "Maryland weather: Thunderstorm, strong winds roll through Baltimore region," 31 Oct. 2019 Once dew points reach 60 degrees, conditions will feel slightly muggy. Dallas News, "Here’s what you might not know about dehydration in the summer heat," 24 July 2019 That raises dew points, increases humidity and creates fog. Dallas News, "Why has Dallas-Fort Worth been so foggy this week?," 15 Jan. 2020 Temperatures are forecast to be way above average today, with highs climbing into the 70s — even mid-70s in some areas — and dew points in the 60s. Leigh Morgan, al, "Widespread severe weather possible today in Alabama; 2 tornado watches issued," 11 Jan. 2020 The humidity will likely be noticeable, as the dew point, a marker of humidity, hovers at about 70 degrees, according to the weather service. Lucas Phillips,, "Heat and humidity return for the start of the workweek," 18 Aug. 2019 Confidence: Medium-High Tonight: Could see some areas of fog develop late this evening and overnight, as temperatures drop close to the dew point with very light winds. Dan Stillman, Washington Post, "D.C.-area forecast: Calm weather for Christmas Day; continues to be seasonably mild through the weekend," 25 Dec. 2019

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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The first known use of dew point was in 1826

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Cite this Entry

“Dew point.” Dictionary, Merriam-Webster, Accessed 3 Aug. 2020.

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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

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