Frost dates in Naplate, IL
The average last spring frost in Naplate is around April 24 and the first fall frost is around October 16. That gives Naplate an average growing season of about 175 days.
Last spring frost
| Early (10% chance after) | April 10 |
|---|---|
| Average (50%) | April 24 |
| Late (90%) | May 11 |
First fall frost
| Early (10%) | September 29 |
|---|---|
| Average (50%) | October 16 |
| Late (90% chance before) | October 30 |