Utah frost dates: G
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Garden City | May 15 | Oct 4 | 142 d | 5a |
| Garland | Apr 24 | Oct 17 | 176 d | 6b |
| Garrison | May 12 | Oct 14 | 155 d | 6a |
| Glendale | May 15 | Oct 8 | 146 d | 6b |
| Glenwood | May 21 | Sep 24 | 126 d | 6a |
| Goshen | May 4 | Oct 11 | 160 d | 6b |
| Grantsville | May 2 | Oct 14 | 165 d | 7a |
| Green River | Apr 22 | Oct 20 | 181 d | 6b |
| Greenville | Jun 1 | Sep 28 | 119 d | 6a |
| Greenwich | Jun 6 | Sep 21 | 107 d | 5b |
| Grouse Creek | Jun 4 | Sep 17 | 105 d | 6b |
| Gunlock | Apr 9 | Nov 5 | 210 d | 8a |
| Gunnison | May 31 | Sep 21 | 113 d | 6a |