relative humidity

noun

: the ratio of the amount of water vapor actually present in the air to the greatest amount possible at the same temperature

Examples of relative humidity in a Sentence

Recent Examples on the Web
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Meanwhile, relative humidity was quite dry, as low as 5%. Richard Winton, Los Angeles Times, 10 Dec. 2024 Wind gusts are forecast to climb to 60 to 80 mph and relative humidity could fall to 2% to 15% Monday night through Tuesday night. Max Golembo, ABC News, 9 Dec. 2024 The relative humidity during the daytime could be as low as 15%. Rick Hurd, The Mercury News, 4 Nov. 2024 Past studies on former World Cup venues have highlighted the negative effects for players who compete in high relative humidities, including in Brazil in 2014. Julia Jacobo, ABC News, 28 Nov. 2024 See all Example Sentences for relative humidity 

Word History

First Known Use

1819, in the meaning defined above

Time Traveler
The first known use of relative humidity was in 1819

Dictionary Entries Near relative humidity

Cite this Entry

“Relative humidity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/relative%20humidity. Accessed 15 Dec. 2024.

Kids Definition

relative humidity

noun
: the amount of water vapor actually present in the air compared to the greatest amount possible at the same temperature

Medical Definition

relative humidity

noun
: the ratio of the amount of water vapor actually present in the air to the greatest amount possible at the same temperature compare absolute humidity

More from Merriam-Webster on relative humidity

Last Updated: - Updated example sentences
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