Frost dates in Delmar, IA

The average last spring frost in Delmar is around April 30 and the first fall frost is around October 4. That gives Delmar an average growing season of about 157 days.

Last spring frost

Early (10% chance after)April 12
Average (50%)April 30
Late (90%)May 18

First fall frost

Early (10%)September 20
Average (50%)October 4
Late (90% chance before)October 18

See the Delmar planting calendar →