Frost dates in Union, AL

The average last spring frost in Union is around January 31 and the first fall frost is around November 14. That gives Union an average growing season of about 288 days.

Last spring frost

Early (10% chance after)January 30
Average (50%)January 31
Late (90%)March 16

First fall frost

Early (10%)October 29
Average (50%)November 14
Late (90% chance before)December 1

See the Union planting calendar →