Frost dates in Lyman, WA

The average last spring frost in Lyman is around April 14 and the first fall frost is around October 27. That gives Lyman 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 Lyman planting calendar →