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.
More seasonal temperatures in the mid-80s are expected Monday, with dew points 5 to 10 degrees cooler than Sunday. — Kansas City Star, 17 Aug. 2026 The sweat meter returns to moderately high today, with dew points back in the 70s. — Bill Kelly, CBS News, 13 Aug. 2026 Humidity rises when the air temperature and the dew point, which measures how much moisture is in the air, approach the same temperature. — Mary Gilbert, CNN Money, 10 Aug. 2026 The other two entrances, which are sidewalk entrances, provide the interior where the washers and dryers are with an incredibly comfortable breeze in Miami’s average 30-degree weather and often times high dew point. — Paula De La Cruz, Forbes.com, 31 July 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

Rhymes for dew point

See All Rhymes for dew point

Browse Nearby Words

dew plant
dew point
dew-point hygrometer
See all Nearby Words

Cite this Entry

“Dew point.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dew%20point. Accessed 19 Aug. 2026.

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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

Nglish: Translation of dew point for Spanish Speakers

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