Frost dates in Oil City, PA
The average last spring frost in Oil City is around May 9 and the first fall frost is around October 11. That gives Oil City an average growing season of about 155 days.
Last spring frost
| Early (10% chance after) | April 23 |
|---|---|
| Average (50%) | May 9 |
| Late (90%) | May 26 |
First fall frost
| Early (10%) | September 26 |
|---|---|
| Average (50%) | October 11 |
| Late (90% chance before) | October 27 |