Frost dates in Duncan, SC
The average last spring frost in Duncan is around March 29 and the first fall frost is around November 4. That gives Duncan an average growing season of about 220 days.
Last spring frost
| Early (10% chance after) | March 12 |
|---|---|
| Average (50%) | March 29 |
| Late (90%) | April 20 |
First fall frost
| Early (10%) | October 21 |
|---|---|
| Average (50%) | November 4 |
| Late (90% chance before) | November 22 |