Frost dates in Williamsport, OH
The average last spring frost in Williamsport is around April 24 and the first fall frost is around October 17. That gives Williamsport an average growing season of about 176 days.
Last spring frost
| Early (10% chance after) | April 11 |
|---|---|
| Average (50%) | April 24 |
| Late (90%) | May 10 |
First fall frost
| Early (10%) | October 2 |
|---|---|
| Average (50%) | October 17 |
| Late (90% chance before) | November 2 |