Frost dates in Benton, IL
The average last spring frost in Benton is around April 6 and the first fall frost is around October 20. That gives Benton an average growing season of about 197 days.
Last spring frost
| Early (10% chance after) | March 25 |
|---|---|
| Average (50%) | April 6 |
| Late (90%) | April 21 |
First fall frost
| Early (10%) | October 11 |
|---|---|
| Average (50%) | October 20 |
| Late (90% chance before) | October 29 |