Frost dates in Warrenton, OR

The average last spring frost in Warrenton is around April 8 and the first fall frost is around November 8. That gives Warrenton an average growing season of about 214 days.

Last spring frost

Early (10% chance after)March 16
Average (50%)April 8
Late (90%)April 27

First fall frost

Early (10%)October 26
Average (50%)November 8
Late (90% chance before)November 29

See the Warrenton planting calendar →