Frost dates in West Union, MN

The average last spring frost in West Union is around May 16 and the first fall frost is around September 22. That gives West Union an average growing season of about 129 days.

Last spring frost

Early (10% chance after)April 26
Average (50%)May 16
Late (90%)June 1

First fall frost

Early (10%)September 10
Average (50%)September 22
Late (90% chance before)October 9

See the West Union planting calendar →