Frost dates in Toppenish, WA

The average last spring frost in Toppenish is around April 24 and the first fall frost is around October 16. That gives Toppenish an average growing season of about 175 days.

Last spring frost

Early (10% chance after)April 2
Average (50%)April 24
Late (90%)May 13

First fall frost

Early (10%)September 28
Average (50%)October 16
Late (90% chance before)October 26

See the Toppenish planting calendar →