Frost dates in Egan, SD

The average last spring frost in Egan is around May 11 and the first fall frost is around September 25. That gives Egan an average growing season of about 137 days.

Last spring frost

Early (10% chance after)April 25
Average (50%)May 11
Late (90%)May 25

First fall frost

Early (10%)September 13
Average (50%)September 25
Late (90% chance before)October 10

See the Egan planting calendar →