Frost dates in Mound City, IL

The average last spring frost in Mound City is around March 25 and the first fall frost is around November 6. That gives Mound City an average growing season of about 226 days.

Last spring frost

Early (10% chance after)March 5
Average (50%)March 25
Late (90%)April 10

First fall frost

Early (10%)October 24
Average (50%)November 6
Late (90% chance before)November 24

See the Mound City planting calendar →