Question

What does relative humidity measure?

Answer 1

Explanation:

Relative humidity (RH) (expressed as a percent) also measures water vapor, but RELATIVE to the temperature of the air. In other words, it is a measure of the actual amount of water vapor in the air compared to the total amount of vapor that can exist in the air at its current temperature.

Answer 2

Relative humidity (RH) is the actual amount of water vapor present in relation to the capacity that the air has at a particular temperature. Relative humidity is important when figuring out dehumidification needs because it allows you to properly assess the exact amount of moisture present in the air at any given point in time.

Relative humidity, expressed as a percent.