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

Thanks to the return of southeasterly winds carrying more atmospheric moisture from the Gulf Coast into Central Texas, surface dew point temperatures (an indicator of water vapor saturation in the air) will steadily increase ahead of a potentially rainy weekend, forecasters said. —Roberto Villalpando, Austin American Statesman, 8 Apr. 2026

For that reason, dew point temperature is a better measure of how comfortable the air will feel when considering weather forecasts. —John P. Rafferty, Encyclopedia Britannica, 7 Apr. 2026

Additional data, like humidity and dew point, runs along the bottom of the screen, mirroring the layout longtime viewers will recognize. —Brandi D. Addison, USA Today, 3 Apr. 2026

Those include temperatures above 77 degrees, dew points above 55 degrees, relative humidity above 50% and any threat of rain or strong winds. —Newsroom Meteorologist, Houston Chronicle, 26 Mar. 2026

Word History

First Known Use

1826, in the meaning defined above

Rhymes for dew point

• adjoint
• anoint
• appoint
• checkpoint
• conjoint
• disjoint
• endpoint
• gunpoint
• midpoint
• nonpoint
• pinpoint
• standpoint

Kids Definition

dew point

noun

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