Frost dates in Walnut Hill, IL
The average last spring frost in Walnut Hill is around April 12 and the first fall frost is around October 24. That gives Walnut Hill an average growing season of about 195 days.
Last spring frost
| Early (10% chance after) | March 27 |
|---|---|
| Average (50%) | April 12 |
| Late (90%) | April 24 |
First fall frost
| Early (10%) | October 7 |
|---|---|
| Average (50%) | October 24 |
| Late (90% chance before) | November 5 |