Frost dates in South Beloit, IL
The average last spring frost in South Beloit is around April 27 and the first fall frost is around October 12. That gives South Beloit an average growing season of about 168 days.
Last spring frost
| Early (10% chance after) | April 14 |
|---|---|
| Average (50%) | April 27 |
| Late (90%) | May 12 |
First fall frost
| Early (10%) | September 26 |
|---|---|
| Average (50%) | October 12 |
| Late (90% chance before) | October 29 |