relative humidity

noun

: the ratio of the amount of water vapor actually present in the air to the greatest amount possible at the same temperature

Examples of relative humidity in a Sentence

Recent Examples on the Web

Although fuel moisture and relative humidity values remain elevated over this area, rapid drying is likely to occur. —Nc Weather Bot, Charlotte Observer, 22 Mar. 2025

Red flag warnings are in place for areas in the Southwest, including New Mexico and north-central Texas, where wind gusts will reach up to 40 mph on Friday paired with a relative humidity down to 10%. —Kenton Gewecke, ABC News, 21 Mar. 2025

The wind direction switches by tomorrow afternoon as a cold front brings another round of dry air with low relative humidity values. —Thomas G. Moukawsher, Newsweek, 21 Mar. 2025

Residents can expect winds to be southwest 15 to 25 mph with gusts up to 40 mph and relative humidity as low as 10 percent. —Star-Telegram Weather Bot, Fort Worth Star-Telegram, 21 Mar. 2025

Word History

First Known Use

1819, in the meaning defined above

Rhymes for relative humidity

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

Kids Definition

relative humidity

noun

: the amount of water vapor actually present in the air compared to the greatest amount possible at the same temperature

Medical Definition

relative humidity

noun

: the ratio of the amount of water vapor actually present in the air to the greatest amount possible at the same temperature compare absolute humidity