Connecticut frost dates: G
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Gales Ferry | Apr 8 | Nov 2 | 208 d | 7a |
| Gaylordsville | Apr 28 | Oct 16 | 171 d | 6b |
| Georgetown | May 1 | Oct 14 | 166 d | 7a |
| Gilman | Apr 14 | Oct 24 | 193 d | 6b |
| Glastonbury | Apr 17 | Oct 26 | 192 d | 6b |
| Goshen | May 3 | Oct 11 | 161 d | 6a |
| Granby | Apr 21 | Oct 16 | 178 d | 6b |
| Greens Farms | Apr 5 | Nov 6 | 215 d | 7a |
| Greenwich | Apr 12 | Oct 31 | 202 d | 7a |
| Grosvenor Dale | May 1 | Oct 9 | 161 d | 6a |
| Groton | Apr 8 | Nov 2 | 208 d | 7a |
| Guilford | Apr 17 | Oct 27 | 193 d | 7a |