Frost dates in Sedro-Woolley, WA

The average last spring frost in Sedro-Woolley is around April 14 and the first fall frost is around October 27. That gives Sedro-Woolley an average growing season of about 196 days.

Last spring frost

Early (10% chance after)March 17
Average (50%)April 14
Late (90%)May 10

First fall frost

Early (10%)October 2
Average (50%)October 27
Late (90% chance before)November 20

See the Sedro-Woolley planting calendar →