Dew point refers to the temperature of the air when it is saturated with water vapor. The dew point temperature is dependent on the humidity in the air. It is <u>directly proportional to humidity and moisture content in air</u>. <u>Therefore, a lower dew point means lower moisture content. </u>
When the air is cooled beyond its dew point, the water vapour in the air condenses to liquid water, called dew.
