Maybe you have heard it said that it is not the heat, but the humidity that makes it so darn hot. Actually, it is the dewpoint or the measure of the amount of moisture in the air that makes it feel so ...

A cloudless cool night can lead to the formation of dew, which occurs much like fog. Dew can give everything around you a cover of moisture, making it look as if light rain has fallen. For dew to form ...

Dew forms when the temperature is equal to the dew point, and is favored by clear skies, light winds, soil moisture, and low dew point depressions.