Frost dates in Washington, PA
The average last spring frost in Washington is around April 26 and the first fall frost is around October 11. That gives Washington an average growing season of about 168 days.
Last spring frost
| Early (10% chance after) | April 12 |
|---|---|
| Average (50%) | April 26 |
| Late (90%) | May 17 |
First fall frost
| Early (10%) | October 1 |
|---|---|
| Average (50%) | October 11 |
| Late (90% chance before) | November 2 |