humidity

noun

hu·​mid·​i·​ty hyü-ˈmi-də-tē How to pronounce humidity (audio)
yü-
plural humidities
Synonyms of humiditynext
: a moderate degree of wetness especially of the atmosphere compare relative humidity

Synonyms of humidity

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Examples of humidity in a Sentence

the humidity of the region It's not the heat that will get you—it's the humidity. The temperature is 67 degrees with humidity at 75 percent. an area of low humidity
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.
Were those outbreaks traced to flooding from unusually heavy rainfall, leaking roofs, inadequate humidity control or some combination of factors? — Chicago Tribune, 28 Oct. 2026 In the heat and humidity of Florida’s Kennedy Space Center, that meant the shuttle stack would start to drip like a water bottle on a muggy day. — Laura Zornosa, Los Angeles Times, 28 Oct. 2026 That's more than 10 degrees above average for the end of October, although humidity should remain comfortable. — CBS News, 27 Oct. 2026 Modern air conditioning American engineer Willis Carrier developed a system for controlling temperature and humidity in 1902 to address printing problems caused by changing atmospheric conditions. — Kaif Shaikh, Interesting Engineering, 25 Oct. 2026 See All Example Sentences for humidity

Word History

First Known Use

15th century, in the meaning defined above

Time Traveler
The first known use of humidity was in the 15th century

Phrases Containing humidity

Rhymes for humidity

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Browse Nearby Words

humidistat
humidity
humidly
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Cite this Entry

“Humidity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/humidity. Accessed 1 Nov. 2026.

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Kids Definition

humidity

noun
hu·​mid·​i·​ty hyü-ˈmid-ət-ē How to pronounce humidity (audio)
yü-
plural humidities
: moisture, dampness
especially : the amount of moisture in the air

Medical Definition

humidity

noun
hu·​mid·​i·​ty hyü-ˈmid-ət-ē, yü- How to pronounce humidity (audio)
plural humidities
: a moderate degree of wetness especially of the atmosphere see absolute humidity, relative humidity

More from Merriam-Webster on humidity

Britannica.com: Encyclopedia article about humidity

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