John asks why meteorologists are concerned with dew point. The dew point is the temperature at which water vapor condenses into liquid water. If the liquid water condenses onto objects (grass, autos, ...

In autumn, it's not uncommon to find fields and gardens covered with a fine layer of water droplets in the morning: this is dew. But why does dew seem more frequent during this time of year? Dew forms ...

NORFOLK, Va. — The old saying goes “it’s not the heat, it’s the humidity!” And while that may be true, it’s only half of the story. It’s the “dew point” that really matters. But what is the dew point?

A question has come up with respect to the old saying “there was a fall of dew overnight.” So, does dew really fall? We think of wet grass as something which comes from falling rain. Rain does fall, ...