Frost dates in Backus, MN

The average last spring frost in Backus is around May 14 and the first fall frost is around September 30. That gives Backus an average growing season of about 139 days.

Last spring frost

Early (10% chance after)April 26
Average (50%)May 14
Late (90%)May 24

First fall frost

Early (10%)September 19
Average (50%)September 30
Late (90% chance before)October 9

See the Backus planting calendar →