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Aviation Dictionary

Relative humidity

The ratio of the existing amount of water vapor in the air at a given temperature to the maximum amount that could exist at that temperature; usually expressed in percent.

Dictionary Term

Relative humidity

Definitions

  • The ratio of the existing amount of water vapor in the air at a given temperature to the maximum amount that could exist at that temperature; usually expressed in percent.
  • Ratio of the amount of water vapor present in the air to that which the air would hold at saturation at the same temperature.

References

  • Parachute Rigger Handbook, Federal Aviation Administration, 2015
  • Pilot's Handbook of Aeronautical Knowledge, Federal Aviation Administration, 2023
  • Weight-Shift Control Aircraft Flying Handbook, Federal Aviation Administration, 2008