Frost dates in Port Royal, VA
The average last spring frost in Port Royal is around April 17 and the first fall frost is around October 22. That gives Port Royal an average growing season of about 188 days.
Last spring frost
| Early (10% chance after) | April 1 |
|---|---|
| Average (50%) | April 17 |
| Late (90%) | May 7 |
First fall frost
| Early (10%) | October 7 |
|---|---|
| Average (50%) | October 22 |
| Late (90% chance before) | November 6 |