humidity
noun
hu·mid·i·ty
hyü-ˈmi-də-tē 
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
At this time of year, summer dials up the heat and humidity, steam rises from roads after sudden downpours, and the smell of sweat mixed with sunscreen and insect repellent lingers in the air.
—
Hilary Whiteman, CNN Money, 27 Dec. 2025
Temperature and Humidity Lemon trees like heat and humidity and don’t do well in colder climates.
—Kim Toscano, Southern Living, 26 Dec. 2025
If archaeologists decide to breach the tomb, changes in temperature and humidity, the introduction of oxygen, and the presence of microbes could, in theory, irreparably damage anything in there.
—Christopher McFadden, Interesting Engineering, 25 Dec. 2025
To maintain healthy indoor plants in winter, increase humidity levels and avoid using cold water.
—Lauren Landers, Better Homes & Gardens, 23 Dec. 2025
See All Example Sentences for humidity
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Hilary Whiteman, CNN Money, 27 Dec. 2025
Temperature and Humidity Lemon trees like heat and humidity and don’t do well in colder climates.
—Kim Toscano, Southern Living, 26 Dec. 2025
If archaeologists decide to breach the tomb, changes in temperature and humidity, the introduction of oxygen, and the presence of microbes could, in theory, irreparably damage anything in there.
—Christopher McFadden, Interesting Engineering, 25 Dec. 2025
To maintain healthy indoor plants in winter, increase humidity levels and avoid using cold water.
—Lauren Landers, Better Homes & Gardens, 23 Dec. 2025
See All Example Sentences for humidity
Cite this Entry
“Humidity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/humidity. Accessed 31 Dec. 2025.
Copy CitationKids Definition
humidity
noun
hu·mid·i·ty
hyü-ˈmid-ət-ē
yü-
plural humidities
Medical Definition
humidity
noun
hu·mid·i·ty
hyü-ˈmid-ət-ē, yü-
plural humidities
: a moderate degree of wetness especially of the atmosphere see absolute humidity, relative humidity
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