The Frost and Freeze map shows where frost cant be expected and where temperature are forecast to fall below 32 degrees F. Frost is a solid deposition of water vapor from saturated air.

For western Massachusetts, the average first frost is typically between October 1st and 15th. While the average timeframe for ...

The big picture: The map above shows the average date of the first ... could arrive on Dec. 22. Context: First freeze is slightly different from "first frost," which is related to temperature ...