Frost dates in International Falls, MN

The average last spring frost in International Falls is around May 25 and the first fall frost is around September 16. That gives International Falls an average growing season of about 114 days.

Last spring frost

Early (10% chance after)May 12
Average (50%)May 25
Late (90%)June 9

First fall frost

Early (10%)August 31
Average (50%)September 16
Late (90% chance before)September 29

See the International Falls planting calendar →