Frost dates in Warren, PA
The average last spring frost in Warren is around May 14 and the first fall frost is around October 10. That gives Warren an average growing season of about 149 days.
Last spring frost
| Early (10% chance after) | April 28 |
|---|---|
| Average (50%) | May 14 |
| Late (90%) | May 28 |
First fall frost
| Early (10%) | September 22 |
|---|---|
| Average (50%) | October 10 |
| Late (90% chance before) | October 24 |