Frost dates in Carbondale, IL
The average last spring frost in Carbondale is around April 13 and the first fall frost is around October 17. That gives Carbondale an average growing season of about 187 days.
Last spring frost
| Early (10% chance after) | March 31 |
|---|---|
| Average (50%) | April 13 |
| Late (90%) | April 28 |
First fall frost
| Early (10%) | September 28 |
|---|---|
| Average (50%) | October 17 |
| Late (90% chance before) | November 2 |