Frost dates in Port Gibson, MS
The average last spring frost in Port Gibson is around March 23 and the first fall frost is around November 4. That gives Port Gibson an average growing season of about 226 days.
Last spring frost
| Early (10% chance after) | March 6 |
|---|---|
| Average (50%) | March 23 |
| Late (90%) | April 10 |
First fall frost
| Early (10%) | October 20 |
|---|---|
| Average (50%) | November 4 |
| Late (90% chance before) | November 21 |