Frost dates in Wilton, MN

The average last spring frost in Wilton is around May 23 and the first fall frost is around September 20. That gives Wilton an average growing season of about 120 days.

Last spring frost

Early (10% chance after)May 7
Average (50%)May 23
Late (90%)June 7

First fall frost

Early (10%)August 30
Average (50%)September 20
Late (90% chance before)October 4

See the Wilton planting calendar →