Frost dates in Colton, WA

The average last spring frost in Colton is around May 7 and the first fall frost is around September 28. That gives Colton an average growing season of about 144 days.

Last spring frost

Early (10% chance after)April 19
Average (50%)May 7
Late (90%)May 23

First fall frost

Early (10%)September 13
Average (50%)September 28
Late (90% chance before)October 23

See the Colton planting calendar →