Frost dates in East Alton, IL

The average last spring frost in East Alton is around April 5 and the first fall frost is around November 7. That gives East Alton an average growing season of about 216 days.

Last spring frost

Early (10% chance after)March 22
Average (50%)April 5
Late (90%)April 16

First fall frost

Early (10%)October 20
Average (50%)November 7
Late (90% chance before)November 24

See the East Alton planting calendar →