Frost dates in Ottawa Hills, OH
The average last spring frost in Ottawa Hills is around April 30 and the first fall frost is around October 12. That gives Ottawa Hills an average growing season of about 165 days.
Last spring frost
| Early (10% chance after) | April 12 |
|---|---|
| Average (50%) | April 30 |
| Late (90%) | May 13 |
First fall frost
| Early (10%) | September 24 |
|---|---|
| Average (50%) | October 12 |
| Late (90% chance before) | October 28 |