Frost dates in Montgomery, IL
The average last spring frost in Montgomery is around April 30 and the first fall frost is around October 10. That gives Montgomery an average growing season of about 163 days.
Last spring frost
| Early (10% chance after) | April 11 |
|---|---|
| Average (50%) | April 30 |
| Late (90%) | May 18 |
First fall frost
| Early (10%) | September 25 |
|---|---|
| Average (50%) | October 10 |
| Late (90% chance before) | October 28 |