Frost dates in Alberta, MN

The average last spring frost in Alberta is around May 10 and the first fall frost is around September 28. That gives Alberta an average growing season of about 141 days.

Last spring frost

Early (10% chance after)April 23
Average (50%)May 10
Late (90%)May 24

First fall frost

Early (10%)September 15
Average (50%)September 28
Late (90% chance before)October 11

See the Alberta planting calendar →