Frost dates in Wilton, ND

The average last spring frost in Wilton is around May 14 and the first fall frost is around September 23. That gives Wilton an average growing season of about 132 days.

Last spring frost

Early (10% chance after)April 30
Average (50%)May 14
Late (90%)May 30

First fall frost

Early (10%)September 10
Average (50%)September 23
Late (90% chance before)October 6

See the Wilton planting calendar →