Frost dates in Ullin, IL

The average last spring frost in Ullin is around March 26 and the first fall frost is around November 3. That gives Ullin an average growing season of about 222 days.

Last spring frost

Early (10% chance after)March 7
Average (50%)March 26
Late (90%)April 20

First fall frost

Early (10%)October 20
Average (50%)November 3
Late (90% chance before)November 16

See the Ullin planting calendar →