Frost dates in Carol Stream, IL
The average last spring frost in Carol Stream is around April 28 and the first fall frost is around October 18. That gives Carol Stream an average growing season of about 173 days.
Last spring frost
| Early (10% chance after) | April 16 |
|---|---|
| Average (50%) | April 28 |
| Late (90%) | May 10 |
First fall frost
| Early (10%) | October 6 |
|---|---|
| Average (50%) | October 18 |
| Late (90% chance before) | October 28 |