California frost dates: G
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Galt | Feb 9 | Dec 5 | 299 d | 9b |
| Garberville | Mar 10 | Dec 1 | 266 d | 9a |
| Garden Grove | rare frost | 10b | ||
| Garden Valley | Apr 12 | Nov 21 | 223 d | 9a |
| Gardena | rare frost | 10b | ||
| Gasquet | May 1 | Oct 12 | 164 d | 8a |
| Gazelle | Apr 30 | Oct 18 | 171 d | 8a |
| Georgetown | Apr 12 | Nov 21 | 223 d | 9a |
| Gerber | Feb 22 | Nov 29 | 280 d | 9a |
| Geyserville | Feb 15 | Dec 2 | 290 d | 9b |
| Gilroy | Feb 24 | Nov 27 | 276 d | 9b |
| Glen Ellen | Mar 2 | Nov 27 | 270 d | 9b |
| Glencoe | Mar 4 | Dec 11 | 282 d | 9a |
| Glendale | Jan 2 | Dec 26 | 358 d | 10a |
| Glendora | Jan 8 | Dec 28 | 354 d | 10a |
| Glenhaven | Apr 10 | Nov 6 | 210 d | 9b |
| Glenn | Feb 25 | Dec 2 | 280 d | 9b |
| Glennville | May 11 | Oct 17 | 159 d | 8b |
| Gold Run | Apr 3 | Nov 24 | 235 d | 9a |
| Goleta | Jan 11 | Dec 16 | 339 d | 10a |
| Gonzales | Apr 23 | Nov 3 | 194 d | 9b |
| Goodyears Bar | Apr 28 | Oct 25 | 180 d | 8b |
| Goshen | Jan 23 | Dec 13 | 324 d | 9b |
| Granada Hills | Jan 2 | Jan 1 | 364 d | 10a |
| Grand Terrace | Jan 10 | Jan 2 | 357 d | 10a |
| Granite Bay | Feb 25 | Dec 5 | 283 d | 9b |
| Grass Valley | Apr 10 | Nov 13 | 217 d | 9a |
| Graton | Mar 20 | Nov 13 | 238 d | 9a |
| Green Valley Lake | May 5 | Nov 2 | 181 d | 7b |
| Greenbrae | Jan 16 | Dec 18 | 336 d | 9b |
| Greenfield | Feb 23 | Nov 22 | 272 d | 9b |
| Greenview | May 20 | Oct 5 | 138 d | 8a |
| Greenville | May 18 | Oct 8 | 143 d | 7b |
| Greenwood | Apr 12 | Nov 21 | 223 d | 9b |
| Grenada | Apr 30 | Oct 18 | 171 d | 8a |
| Gridley | Jan 29 | Dec 7 | 312 d | 9b |
| Grimes | Feb 14 | Dec 1 | 290 d | 9b |
| Grizzly Flats | Apr 26 | Nov 2 | 190 d | 8b |
| Groveland | Apr 22 | Nov 2 | 194 d | 6a |
| Grover Beach | Feb 1 | Jan 4 | 337 d | 10a |
| Guadalupe | Feb 4 | Dec 13 | 312 d | 10a |
| Gualala | Feb 26 | Dec 27 | 304 d | 9b |
| Guasti | Jan 4 | Dec 30 | 360 d | 10a |
| Guatay | Apr 22 | Nov 8 | 200 d | 8b |
| Guerneville | Jan 29 | Dec 30 | 335 d | 9b |
| Guinda | Apr 10 | Nov 6 | 210 d | 9b |
| Gustine | Feb 26 | Nov 29 | 276 d | 9b |