Frost dates in Tiffin, OH
The average last spring frost in Tiffin is around April 29 and the first fall frost is around October 15. That gives Tiffin an average growing season of about 169 days.
Last spring frost
| Early (10% chance after) | April 13 |
|---|---|
| Average (50%) | April 29 |
| Late (90%) | May 11 |
First fall frost
| Early (10%) | October 1 |
|---|---|
| Average (50%) | October 15 |
| Late (90% chance before) | October 30 |