Frost dates in Champaign, IL
The average last spring frost in Champaign is around April 18 and the first fall frost is around October 20. That gives Champaign an average growing season of about 185 days.
Last spring frost
| Early (10% chance after) | April 7 |
|---|---|
| Average (50%) | April 18 |
| Late (90%) | May 4 |
First fall frost
| Early (10%) | October 6 |
|---|---|
| Average (50%) | October 20 |
| Late (90% chance before) | November 2 |