Humidity (%)

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What is Humidity?

Humidity is the amount of water vapor in air. Absolute humidity, relative humidity, and specific humidity are different ways to express the water content in a parcel of air. Relative humidity is the most frequently used of these expressions because of its importance in weather forecasting.
Relative humidity indicates the likelihood of precipitation, dew, or fog. High relative humidity makes people feel hotter outside in the summer because it reduces the effectiveness of sweating to cool the body by preventing the evaporation of perspiration from the skin. This effect is calculated in a heat index table. Warm water vapor has more thermal energy than cool water vapor and therefore more of it evaporates into warm air than into cold air. Want to know more?

Humidity (%)

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