Frost dates in Tucson, AZ

The average last spring frost in Tucson is around February 27 and the first fall frost is around November 29. That gives Tucson an average growing season of about 276 days.

Last spring frost

Early (10% chance after)January 22
Average (50%)February 27
Late (90%)March 19

First fall frost

Early (10%)November 16
Average (50%)November 29
Late (90% chance before)December 19

See the Tucson planting calendar →