Frost dates in South Wilmington, IL
The average last spring frost in South Wilmington is around April 25 and the first fall frost is around October 14. That gives South Wilmington an average growing season of about 172 days.
Last spring frost
| Early (10% chance after) | April 12 |
|---|---|
| Average (50%) | April 25 |
| Late (90%) | May 16 |
First fall frost
| Early (10%) | October 3 |
|---|---|
| Average (50%) | October 14 |
| Late (90% chance before) | October 31 |