Frost dates in La Prairie, IL
The average last spring frost in La Prairie is around April 15 and the first fall frost is around October 16. That gives La Prairie an average growing season of about 184 days.
Last spring frost
| Early (10% chance after) | March 30 |
|---|---|
| Average (50%) | April 15 |
| Late (90%) | May 3 |
First fall frost
| Early (10%) | October 1 |
|---|---|
| Average (50%) | October 16 |
| Late (90% chance before) | November 4 |