Frost dates in Flint, MI

The average last spring frost in Flint is around May 8 and the first fall frost is around October 17. That gives Flint an average growing season of about 162 days.

Last spring frost

Early (10% chance after)April 25
Average (50%)May 8
Late (90%)May 18

First fall frost

Early (10%)October 5
Average (50%)October 17
Late (90% chance before)October 26

See the Flint planting calendar →