Frost dates in Casselton, ND

The average last spring frost in Casselton is around May 10 and the first fall frost is around October 1. That gives Casselton an average growing season of about 144 days.

Last spring frost

Early (10% chance after)April 22
Average (50%)May 10
Late (90%)May 21

First fall frost

Early (10%)September 15
Average (50%)October 1
Late (90% chance before)October 16

See the Casselton planting calendar →