Frost dates in Scandinavia, WI

The average last spring frost in Scandinavia is around May 11 and the first fall frost is around October 2. That gives Scandinavia an average growing season of about 144 days.

Last spring frost

Early (10% chance after)April 24
Average (50%)May 11
Late (90%)May 27

First fall frost

Early (10%)September 20
Average (50%)October 2
Late (90% chance before)October 20

See the Scandinavia planting calendar →