Frost dates in Alanson, MI

The average last spring frost in Alanson is around June 2 and the first fall frost is around September 14. That gives Alanson an average growing season of about 104 days.

Last spring frost

Early (10% chance after)May 18
Average (50%)June 2
Late (90%)June 21

First fall frost

Early (10%)August 22
Average (50%)September 14
Late (90% chance before)October 3

See the Alanson planting calendar →