Frost dates in Sherman, SD

The average last spring frost in Sherman is around April 30 and the first fall frost is around October 7. That gives Sherman an average growing season of about 160 days.

Last spring frost

Early (10% chance after)April 15
Average (50%)April 30
Late (90%)May 15

First fall frost

Early (10%)September 23
Average (50%)October 7
Late (90% chance before)October 16

See the Sherman planting calendar →