Frost dates in Port Royal, SC
The average last spring frost in Port Royal is around March 2 and the first fall frost is around November 25. That gives Port Royal an average growing season of about 268 days.
Last spring frost
| Early (10% chance after) | February 9 |
|---|---|
| Average (50%) | March 2 |
| Late (90%) | March 25 |
First fall frost
| Early (10%) | November 10 |
|---|---|
| Average (50%) | November 25 |
| Late (90% chance before) | December 17 |