Frost dates in South Heart, ND

The average last spring frost in South Heart is around May 24 and the first fall frost is around September 14. That gives South Heart an average growing season of about 113 days.

Last spring frost

Early (10% chance after)May 10
Average (50%)May 24
Late (90%)June 12

First fall frost

Early (10%)August 28
Average (50%)September 14
Late (90% chance before)September 26

See the South Heart planting calendar →