Massachusetts frost dates: G
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Gardner | May 2 | Oct 13 | 164 d | 5b |
| Georgetown | May 3 | Oct 8 | 158 d | 6b |
| Gilbertville | May 3 | Oct 14 | 164 d | 6a |
| Gill | May 1 | Oct 11 | 163 d | 6a |
| Glendale | May 7 | Oct 3 | 149 d | 5b |
| Gloucester | May 4 | Oct 12 | 161 d | 7a |
| Goshen | May 13 | Oct 2 | 142 d | 6a |
| Grafton | Apr 23 | Oct 21 | 181 d | 6b |
| Granby | May 3 | Oct 14 | 164 d | 6a |
| Granville | Apr 28 | Oct 17 | 172 d | 6a |
| Great Barrington | May 7 | Oct 3 | 149 d | 6a |
| Green Harbor | Apr 15 | Nov 1 | 200 d | 7a |
| Greenbush | Apr 25 | Oct 22 | 180 d | 7a |
| Greenfield | May 1 | Oct 11 | 163 d | 6a |
| Groton | Apr 29 | Oct 8 | 162 d | 6a |
| Groveland | May 3 | Oct 8 | 158 d | 6a |