Frost dates in Sims, IL

The average last spring frost in Sims is around April 13 and the first fall frost is around October 20. That gives Sims an average growing season of about 190 days.

Last spring frost

Early (10% chance after)March 31
Average (50%)April 13
Late (90%)April 27

First fall frost

Early (10%)October 3
Average (50%)October 20
Late (90% chance before)November 6

See the Sims planting calendar →