Humidity

[Sarah]

the amount of water vapor in the air, expressed as a percentage of the maximum amount that the air could hold at the given temperature; the ratio of the actual water vapor pressure to the saturation vapor pressure. Abbreviation: RH, rh

[Justin Bieber]

[The devils] [ball sweat]

[Monty]

The state or quality of being humid.

[exinilu]

The moisture content of air. Relative humidity is the ratio of the amount of water vapor actually present in the air to the greatest amount possible at the same temperature.