Frost dates in LaSalle, IL
The average last spring frost in LaSalle is around April 26 and the first fall frost is around October 10. That gives LaSalle an average growing season of about 167 days.
Last spring frost
| Early (10% chance after) | April 10 |
|---|---|
| Average (50%) | April 26 |
| Late (90%) | May 10 |
First fall frost
| Early (10%) | September 29 |
|---|---|
| Average (50%) | October 10 |
| Late (90% chance before) | October 28 |