Maine frost dates: G
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Gardiner | May 1 | Oct 11 | 163 d | 5b |
| Garland | May 8 | Oct 3 | 148 d | 5a |
| Georgetown | Apr 28 | Oct 21 | 176 d | 6a |
| Gorham | May 7 | Oct 4 | 150 d | 5b |
| Gouldsboro | Apr 27 | Oct 22 | 178 d | 6a |
| Grand Isle | May 6 | Oct 2 | 149 d | 4a |
| Grand Lake Stream | May 4 | Oct 10 | 159 d | 5b |
| Gray | Apr 28 | Oct 19 | 174 d | 5b |
| Greenbush | May 13 | Sep 28 | 138 d | 5a |
| Greene | Apr 25 | Oct 19 | 177 d | 5b |
| Greenville | May 7 | Oct 9 | 155 d | 4a |
| Greenville Junction | May 7 | Oct 9 | 155 d | 4b |
| Greenwood | May 6 | Oct 2 | 149 d | 5a |
| Guilford | May 6 | Oct 7 | 154 d | 5a |