Frost dates in Port Lions, AK

The average last spring frost in Port Lions is around May 21 and the first fall frost is around September 29. That gives Port Lions an average growing season of about 131 days.

Last spring frost

Early (10% chance after)April 25
Average (50%)May 21
Late (90%)May 29

First fall frost

Early (10%)September 21
Average (50%)September 29
Late (90% chance before)October 20

See the Port Lions planting calendar →