Frost dates in Spirit Lake, IA

The average last spring frost in Spirit Lake is around April 27 and the first fall frost is around October 9. That gives Spirit Lake an average growing season of about 165 days.

Last spring frost

Early (10% chance after)April 9
Average (50%)April 27
Late (90%)May 15

First fall frost

Early (10%)September 27
Average (50%)October 9
Late (90% chance before)October 27

See the Spirit Lake planting calendar →