Frost dates in Middletown, IL

The average last spring frost in Middletown is around April 18 and the first fall frost is around October 14. That gives Middletown an average growing season of about 179 days.

Last spring frost

Early (10% chance after)March 31
Average (50%)April 18
Late (90%)April 30

First fall frost

Early (10%)September 24
Average (50%)October 14
Late (90% chance before)November 1

See the Middletown planting calendar →