Frost dates in St. Helena, NC
The average last spring frost in St. Helena is around March 30 and the first fall frost is around November 7. That gives St. Helena an average growing season of about 222 days.
Last spring frost
| Early (10% chance after) | March 18 |
|---|---|
| Average (50%) | March 30 |
| Late (90%) | April 14 |
First fall frost
| Early (10%) | October 26 |
|---|---|
| Average (50%) | November 7 |
| Late (90% chance before) | November 22 |