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.
Some locally dense fog remains possible Tuesday as dew point temperatures and air temperatures reach the low 60s. Newsroom Meteorologist, Austin American Statesman, 10 Feb. 2026 Some locally dense fog remains possible as dew point temperatures — an indicator of atmospheric moisture — and air temperatures reach the low 60s. Mary Wasson, San Antonio Express-News, 10 Feb. 2026 New Hampshire has much lower dew points in the summer. Tribune News Service, Baltimore Sun, 20 Jan. 2026 Additionally, dew points will sit in the mid- to upper 60s throughout the week, making for muggy conditions as well. Anthony Franze, Houston Chronicle, 4 Jan. 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

Browse Nearby Words

Cite this Entry

“Dew point.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dew%20point. Accessed 16 Feb. 2026.

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

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