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

• damp
• dampness
• moistness
• 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

Winds of 50 mph were forecast with gusts reaching 65 mph and humidity levels dropping below 10%. —Bart Jansen, USA TODAY, 24 Jan. 2025

Current conditions near the fire include northeast winds of 20-30 mph with gusts reaching 35-45 mph, humidity levels at a critically low 5-6%, and temperatures between 67-70 degrees. —Hannah Parry, Newsweek, 23 Jan. 2025

These months bring sunny days, less humidity, and near-consistent weather. —Meagan Drillinger, AFAR Media, 22 Jan. 2025

With red flag conditions forecast through 8 p.m. Thursday, firefighters face winds channeled down local canyons and very low humidity. —Tom Tapp, Deadline, 22 Jan. 2025

Word History

First Known Use

15th century, in the meaning defined above

Phrases Containing humidity

• absolute humidity
• relative humidity

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