Frost dates in Oak Harbor, WA

The average last spring frost in Oak Harbor is around March 29 and the first fall frost is around November 3. That gives Oak Harbor an average growing season of about 219 days.

Last spring frost

Early (10% chance after)March 2
Average (50%)March 29
Late (90%)April 21

First fall frost

Early (10%)October 15
Average (50%)November 3
Late (90% chance before)November 28

See the Oak Harbor planting calendar →