dew point

noun

: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Belmont says the facility would generate enough heat to raise nighttime temperatures by eight to 12 degrees, irrevocably shifting the dew point, the temperature at which water condenses. Mary Jane Gibson, Rolling Stone, 17 May 2026 The dew point is the temperature at which air becomes saturated; higher numbers (typically in the 60s and 70s) indicate more noticeable and potentially uncomfortable humidity. Doyle Rice, USA Today, 16 May 2026 This will help temperatures rise into the upper 80s to lower 90s and dew points, a measure of humidity, increase from the mid-40s to mid-50s to the lower 60s by Friday afternoon and evening. Kansas City Star, 15 May 2026 If the temperature cools to the dew point, fog will begin to form. Zoe Mintz, CBS News, 3 May 2026 See All Example Sentences for dew point

Word History

First Known Use

1826, in the meaning defined above

Time Traveler
The first known use of dew point was in 1826

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Cite this Entry

“Dew point.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dew%20point. Accessed 23 May. 2026.

Kids Definition

dew point

noun
: the temperature at which the moisture in the air begins or would begin to collect on surfaces

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