Dew Point
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The dew point is the temperature the air needs to be cooled to (at constant pressure) in order to produce a relative humidity of 100%. This temperature depends on the pressure and water content of the air. When the air at a temperature above the dewpoint is cooled, its moisture capacity is reduced and airborne water vapor will condense to form liquid water known as dew. When this occurs through the air's contact with a colder surface, dew will form on that surface.
The dew point is affected by the air's humidity. The more moisture the air contains, the higher its dew point.
When the temperature is below the freezing point of water, the dew point is called the frost point, as frost is formed via deposition rather than condensation.
In liquids, the analog to the dew point is the cloud point.
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On Hold - 2025-03-21 00:00:00
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