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 The dew point means the temperature to which air must be cooled to become saturated with water vapor. Raphael Romero Ruiz, The Arizona Republic, 20 May 2024 If the night is too warm, temperatures generally won't be low enough to reach the dew point necessary for the saturation needed for fog. Claire Reid, Journal Sentinel, 17 May 2024 See all Example Sentences for dew point 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'dew point.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1826, in the meaning defined above

Time Traveler
The first known use of dew point was in 1826

Dictionary Entries Near dew point

Cite this Entry

“Dew point.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dew%20point. Accessed 29 May. 2024.

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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