Frost dates in McNabb, IL
The average last spring frost in McNabb is around April 20 and the first fall frost is around October 24. That gives McNabb an average growing season of about 187 days.
Last spring frost
| Early (10% chance after) | April 9 |
|---|---|
| Average (50%) | April 20 |
| Late (90%) | April 29 |
First fall frost
| Early (10%) | October 16 |
|---|---|
| Average (50%) | October 24 |
| Late (90% chance before) | October 31 |