Frost dates in Mellen, WI

The average last spring frost in Mellen is around May 30 and the first fall frost is around September 19. That gives Mellen an average growing season of about 112 days.

Last spring frost

Early (10% chance after)May 13
Average (50%)May 30
Late (90%)June 17

First fall frost

Early (10%)August 30
Average (50%)September 19
Late (90% chance before)October 1

See the Mellen planting calendar →