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.
As temperatures cool and dew points rise, fog is common during this time of year, National Weather Service (NWS) meteorologist Stephen McCoy told . Anna Skinner, MSNBC Newsweek, 30 Oct. 2025 Meteorologists watch dew point temperatures, which are a measure of moisture in the air, for signs that storms could kick off. Hayleigh Evans, AZCentral.com, 30 Sep. 2025 Cooler and longer Fall nights allow the earth to cool to its dew point, which is when water condenses into droplets. Moira McCarthy, Boston Herald, 18 Sep. 2025 The dew point is the temperature at which water vapor condenses into liquid and generally runs in the low 50s for the region this time of year, according to the weather service. Rick Hurd, Mercury News, 12 Sep. 2025 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

Browse Nearby Words

Cite this Entry

“Dew point.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dew%20point. Accessed 5 Nov. 2025.

Kids Definition

dew point

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

More from Merriam-Webster on dew point

Last Updated: - Updated example sentences
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