Frost dates in Montclair, CA

The average last spring frost in Montclair is around March 12 and the first fall frost is around November 26. That gives Montclair an average growing season of about 259 days.

Last spring frost

Early (10% chance after)January 25
Average (50%)March 12
Late (90%)April 14

First fall frost

Early (10%)November 6
Average (50%)November 26
Late (90% chance before)December 25

See the Montclair planting calendar →