Frost dates in Detroit, MI

The average last spring frost in Detroit is around April 21 and the first fall frost is around November 2. That gives Detroit an average growing season of about 195 days.

Last spring frost

Early (10% chance after)April 7
Average (50%)April 21
Late (90%)May 3

First fall frost

Early (10%)October 18
Average (50%)November 2
Late (90% chance before)November 13

See the Detroit planting calendar →