Frost dates in Clayton, CA

The average last spring frost in Clayton is around March 26 and the first fall frost is around November 30. That gives Clayton an average growing season of about 249 days.

Last spring frost

Early (10% chance after)February 11
Average (50%)March 26
Late (90%)April 24

First fall frost

Early (10%)November 12
Average (50%)November 30
Late (90% chance before)December 23

See the Clayton planting calendar →