Frost dates in Bruno, MN

The average last spring frost in Bruno is around May 22 and the first fall frost is around September 21. That gives Bruno an average growing season of about 122 days.

Last spring frost

Early (10% chance after)May 11
Average (50%)May 22
Late (90%)June 5

First fall frost

Early (10%)September 10
Average (50%)September 21
Late (90% chance before)October 10

See the Bruno planting calendar →