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Meteorology and Weather
Atmospheric Sciences
Evaporation and Condensation

What are humidity measurements based upon?

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January 11, 2014 10:08PM

Air humidity measurements are based on the water content of the air, expressed as volume percentage:

Relative Humidity = percentage of saturation at a given temperature

Absolute Humidity = percentage of water in the air, regardless of saturation or temperature.

The humidity that is talked about in weather reports, is relative humidity.