Frost dates in North Liberty, IA

The average last spring frost in North Liberty is around April 23 and the first fall frost is around October 15. That gives North Liberty an average growing season of about 175 days.

Last spring frost

Early (10% chance after)April 13
Average (50%)April 23
Late (90%)May 7

First fall frost

Early (10%)September 29
Average (50%)October 15
Late (90% chance before)October 28

See the North Liberty planting calendar →