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
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 risk of wildfire was enhanced by low relative humidity, which had fallen to the 5% to 15% range by early afternoon. Karen Kucher, The Mercury News, 11 Dec. 2024 Dry conditions persist, with relative humidity below 10%, prompting the weather service to issue Red Flag warnings until 2 p.m. Wednesday. Hanna Park, Robert Shackelford and Mary Gilbert, CNN, 11 Dec. 2024 Gusts of up to 80 mph are possible, and relative humidity is forecast to be alarmingly low, while vegetation is extremely dry. Richard Winton, Los Angeles Times, 10 Dec. 2024 Fires in California are more common, but activity at this time of the year is always a cause for concern due to the Santa Ana winds, a seasonal wind pattern that occurs most in the fall, bringing extremely strong and dry downslope winds and lower relative humidity through Southern California. Hayleigh Evans, The Arizona Republic, 14 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 30 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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