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.
In 1934, Florida was never really a viable option — flat as a pancake, hot as the Sahara, with equatorial-level dew points, and yes, the mosquitoes. — Thomas Doherty, HollywoodReporter, 19 Sep. 2026 Highs will climb into the upper 90s to around 100 on Friday afternoon, but lower dew points should keep the heat index fairly close to the actual air temperature. — Nelly Carreño, CBS News, 18 Sep. 2026 People start feeling uncomfortable when the dew point creeps into the 60s, especially the mid- and upper-60s. — Paris Barraza, USA Today, 11 Sep. 2026 Lewis said dew point temperatures are projected to be in the 70s for most of Los Angeles and Ventura counties. — Karen Garcia, Los Angeles Times, 9 Sep. 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 27 Sep. 2026.

Kids Definition

dew point

noun
: the temperature at which the moisture in the air begins or would begin to collect on surfaces
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!