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

Synonyms of humidity

• moisture

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

With humidity dropping to 15 to 25% this afternoon, and northwest winds gusting to 20 to 25mph, fuels will dry out quickly. —Nc Weather Bot, Charlotte Observer, 19 Apr. 2026

Its core instrument, the Infrared Sounder, collects temperature profiles and humidity profiles. —Richard Tribou, The Orlando Sentinel, 19 Apr. 2026

As climate change intensifies, the air in the Midwest is becoming more saturated with humidity, a key ingredient of strong thunderstorms that can produce tornadoes. —Adriana Pérez, Chicago Tribune, 19 Apr. 2026

Not too hot, not too cold and humidity levels are pretty low. —Bill Kelly, CBS News, 17 Apr. 2026

Word History

First Known Use

15th century, in the meaning defined above

Phrases Containing humidity

• absolute humidity
• relative humidity

Rhymes for humidity

• acidity
• aridity
• avidity
• cupidity
• fluidity
• liquidity
• lucidity
• morbidity
• placidity
• rancidity
• rapidity
• rigidity

Kids Definition

humidity

noun

hu·​mid·​i·​ty hyü-ˈmid-ət-ē 

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- 

plural humidities

: a moderate degree of wetness especially of the atmosphere see absolute humidity, relative humidity