National Weather Service United States Department of Commerce

With the late start to the growing year, concerns for potential fall freezes are higher than usual. On average, central Illinois will see its first freeze around the middle of October. The first hard freeze (low of 28 degrees or below) typically occurs in late October or the first few days of November.

The following graphics are courtesy of the Midwestern Regional Climate Center in Champaign.

Observed date of first freeze this season. Image courtesy MRCC

Observed date of first hard freeze (28 degrees or colder). Image courtesy MRCC

Average date of first freeze. Image courtesy MRCC

Average date of first hard freeze (28 deg.)  Image courtesy MRCC