Frost dates in Bellefontaine, OH
The average last spring frost in Bellefontaine is around May 1 and the first fall frost is around October 13. That gives Bellefontaine an average growing season of about 165 days.
Last spring frost
| Early (10% chance after) | April 15 |
|---|---|
| Average (50%) | May 1 |
| Late (90%) | May 18 |
First fall frost
| Early (10%) | September 28 |
|---|---|
| Average (50%) | October 13 |
| Late (90% chance before) | October 27 |