Frost dates in Port Hope, MI

The average last spring frost in Port Hope is around May 1 and the first fall frost is around October 21. That gives Port Hope an average growing season of about 173 days.

Last spring frost

Early (10% chance after)April 24
Average (50%)May 1
Late (90%)May 12

First fall frost

Early (10%)October 8
Average (50%)October 21
Late (90% chance before)November 4

See the Port Hope planting calendar →