Frost Page
(all photographs by J. Gerencher}

Frost is ice that forms directly from water vapor.  The water vapor is deposited on a surface that cools below the air temperature by radiation heat loss.  The surface temperature also must be below the freezing temperature of water, 32 degrees Fahrenheit.  If the temperature of the surface is above 32 degrees Fahrenheit, dew would form instead of frost.  Frost is NOT frozen dew.

Frost on lantern
Frost on lantern glass in front of Gerencher home.

Frost on car window.
Frost on Gerencher's car window.

Frost on house windows.
Frost on Gerencher's house windows.