What is a dew point?


Quick Answer

A dew point is the temperature at which water begins to accumulate in the form of dew drops on objects in the environment. If the dew point is 70 degrees Fahrenheit, then dew forms when the temperature reaches 70 degrees Fahrenheit.

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Full Answer

Dew point is actually a measure of relative humidity in the air. Higher dew points indicate a higher level of moisture in the air, while low dew points indicate an absence of moisture. The current temperature is always higher than or equal to the current dew point and, if the temperature falls below the dew point, the dew point falls as well.

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