Frost dates in Bangor, ME

The average last spring frost in Bangor is around May 7 and the first fall frost is around October 6. That gives Bangor an average growing season of about 152 days.

Last spring frost

Early (10% chance after)April 22
Average (50%)May 7
Late (90%)May 18

First fall frost

Early (10%)September 22
Average (50%)October 6
Late (90% chance before)October 21

See the Bangor planting calendar →