Frost dates in Valmeyer, IL
The average last spring frost in Valmeyer is around April 9 and the first fall frost is around October 23. That gives Valmeyer an average growing season of about 197 days.
Last spring frost
| Early (10% chance after) | March 24 |
|---|---|
| Average (50%) | April 9 |
| Late (90%) | April 25 |
First fall frost
| Early (10%) | October 10 |
|---|---|
| Average (50%) | October 23 |
| Late (90% chance before) | November 5 |