Frost dates in McIntosh, SD

The average last spring frost in McIntosh is around May 12 and the first fall frost is around September 25. That gives McIntosh an average growing season of about 136 days.

Last spring frost

Early (10% chance after)April 25
Average (50%)May 12
Late (90%)May 29

First fall frost

Early (10%)September 12
Average (50%)September 25
Late (90% chance before)October 17

See the McIntosh planting calendar →