Frost dates in Gridley, IL
The average last spring frost in Gridley is around April 23 and the first fall frost is around October 12. That gives Gridley an average growing season of about 172 days.
Last spring frost
| Early (10% chance after) | April 8 |
|---|---|
| Average (50%) | April 23 |
| Late (90%) | May 10 |
First fall frost
| Early (10%) | September 24 |
|---|---|
| Average (50%) | October 12 |
| Late (90% chance before) | October 29 |