Frost dates in Snoqualmie, WA

The average last spring frost in Snoqualmie is around April 29 and the first fall frost is around October 19. That gives Snoqualmie an average growing season of about 173 days.

Last spring frost

Early (10% chance after)April 4
Average (50%)April 29
Late (90%)May 24

First fall frost

Early (10%)September 26
Average (50%)October 19
Late (90% chance before)November 9

See the Snoqualmie planting calendar →