Vermont frost dates: C
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Cabot | May 25 | Sep 22 | 120 d | 4b |
| Calais | May 4 | Oct 5 | 154 d | 5a |
| Cambridge | May 23 | Sep 30 | 130 d | 5a |
| Cambridgeport | May 8 | Oct 3 | 148 d | 5b |
| Canaan | May 25 | Sep 22 | 120 d | 4a |
| Castleton | May 15 | Sep 27 | 135 d | 5a |
| Cavendish | May 16 | Sep 29 | 136 d | 5b |
| Center Rutland | May 15 | Sep 27 | 135 d | 5a |
| Charlotte | May 2 | Oct 14 | 165 d | 5a |
| Chelsea | May 9 | Oct 1 | 145 d | 5a |
| Chester | May 13 | Oct 3 | 143 d | 5b |
| Chittenden | May 15 | Sep 27 | 135 d | 5a |
| Colchester | May 2 | Oct 11 | 162 d | 5a |
| Concord | May 13 | Oct 3 | 143 d | 4b |
| Corinth | May 14 | Sep 29 | 138 d | 5a |
| Coventry | May 14 | Sep 30 | 139 d | 4b |
| Craftsbury | May 5 | Oct 8 | 156 d | 4b |
| Craftsbury Common | May 5 | Oct 8 | 156 d | 4b |
| Cuttingsville | May 15 | Sep 27 | 135 d | 5b |