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.
The dew point is the temperature at which water vapor condenses into liquid and generally runs in the low 50s for the region this time of year, according to the weather service. Rick Hurd, Mercury News, 12 Sep. 2025 Relative humidity and the dew point work together and have an impact on clouds and precipitation, says the Weather Service. Kaycee Sloan, The Enquirer, 23 Aug. 2025 In 2025, the humidity was off the charts in about two-thirds of the country, with a dew point 5 to 7 degrees higher than average.2 Humidity at this level hinders a plant’s ability to draw nutrients from the soil or get water to evaporate from its leaves. Leanne Potts, Better Homes & Gardens, 20 Aug. 2025 For the rest of the week, temperatures will fluctuate between the high-70s and low-80s with mild dew points and calm winds capping at around 10 mph. Jack Albright, jsonline.com, 19 Aug. 2025 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

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Cite this Entry

“Dew point.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dew%20point. Accessed 17 Sep. 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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