What is the difference between a dew point and relative humidity?

Answer by  Robby (26)

Dew point is the temperature based on humidity and pressure in which water will form from moisture in the air. The relative humidity is the percent of moisture in a given amount of air by dividing the water vapors current partial pressure by the saturation pressure at the given temperature.

Answer by  worker5179 (42)

Dew points indicate the amount of moisture in the air. The higher the dew point is, the higher the moisture content of the air at a given temperature. Relative humidity is the measure of the amount of moisture in the air at a given temperature.