Frost dates in Port William, OH

The average last spring frost in Port William is around April 26 and the first fall frost is around October 14. That gives Port William an average growing season of about 171 days.

Last spring frost

Early (10% chance after)April 11
Average (50%)April 26
Late (90%)May 13

First fall frost

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

See the Port William planting calendar →