humidity

noun

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

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.
Blue Frontier is commercializing the technology by integrating it into its Dedicated Outdoor Air System, a 20-ton unit installed in Florida, which controls temperature and humidity while operating primarily during periods of solar photovoltaic production. Kaif Shaikh, Interesting Engineering, 5 Sep. 2025 Poor Ventilation Along with the increase in moisture and humidity, another leading cause for a dusty bathroom is poor ventilation. Ashlyn Needham, Southern Living, 5 Sep. 2025 A lot of people were outside standing for over an hour (including myself) in the humidity with hopes to get inside early for restrooms/concessions. Megan Cartwright, MSNBC Newsweek, 4 Sep. 2025 Even if there’s no rain in the forecast, excess humidity can prevent proper absorption and alter the stain’s drying process, while low humidity can cause premature drying. Kamron Sanders, Better Homes & Gardens, 4 Sep. 2025 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

Browse Nearby Words

Cite this Entry

“Humidity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/humidity. Accessed 10 Sep. 2025.

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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!