Frost dates in Swansea, IL

The average last spring frost in Swansea is around April 13 and the first fall frost is around October 18. That gives Swansea an average growing season of about 188 days.

Last spring frost

Early (10% chance after)March 31
Average (50%)April 13
Late (90%)April 28

First fall frost

Early (10%)October 2
Average (50%)October 18
Late (90% chance before)November 5

See the Swansea planting calendar →