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.
Dense fog develops when the air near the ground cools to its dew point—this is the temperature at which water vapor condenses into tiny liquid water droplets that remain suspended in the air. Benedict Cosgrove, Newsweek, 19 Dec. 2024 If the night is too warm, temperatures generally won't be low enough to reach the dew point necessary for the saturation needed for fog. Claire Reid, Journal Sentinel, 16 Dec. 2024 The National Weather Service established dates for the start and end of monsoon season in 2008 rather than using the traditional dew point temperatures. Shelby Slade, The Arizona Republic, 3 Sep. 2024 This was reflected in the day’s dew points, which were confined to the 50s, a location regarded as comfortable. Martin Weil, Washington Post, 27 July 2024 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

Dictionary Entries Near dew point

Cite this Entry

“Dew point.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dew%20point. Accessed 9 Jan. 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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