Frost dates in Polo, IL
The average last spring frost in Polo is around April 30 and the first fall frost is around October 5. That gives Polo an average growing season of about 158 days.
Last spring frost
| Early (10% chance after) | April 19 |
|---|---|
| Average (50%) | April 30 |
| Late (90%) | May 16 |
First fall frost
| Early (10%) | September 22 |
|---|---|
| Average (50%) | October 5 |
| Late (90% chance before) | October 14 |