Frost point
Frost point, temperature, below 0Β° C (32Β° F), at which moisture in the air will condense as a layer of frost on any exposed surface. The frost point is analogous to the dew point, the temperature at which the water condenses in liquid form; both the frost point and the dew point depend upon the relative humidity of the air.
This article was most recently revised and updated by Amy Tikkanen.
Citation Information
Article Title:
Frost point
Website Name:
Encyclopaedia Britannica
Publisher:
Encyclopaedia Britannica, Inc.
Date Published:
10 November 2026
Access Date:
November 13, 2026