Frost dates in Corvallis, OR

The average last spring frost in Corvallis is around April 24 and the first fall frost is around October 28. That gives Corvallis an average growing season of about 187 days.

Last spring frost

Early (10% chance after)March 23
Average (50%)April 24
Late (90%)May 12

First fall frost

Early (10%)October 6
Average (50%)October 28
Late (90% chance before)November 17

See the Corvallis planting calendar →