Pennsylvania frost dates: G
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Gaines | May 10 | Oct 5 | 148 d | 6a |
| Galeton | May 10 | Oct 5 | 148 d | 5b |
| Gallitzin | Apr 25 | Oct 21 | 179 d | 6a |
| Gans | Apr 25 | Oct 24 | 182 d | 6b |
| Gap | Apr 14 | Nov 1 | 201 d | 7a |
| Garards Fort | Apr 28 | Oct 21 | 176 d | 6b |
| Gardners | Apr 15 | Oct 27 | 195 d | 7a |
| Garland | May 22 | Sep 30 | 131 d | 5b |
| Garnet Valley | Mar 30 | Nov 16 | 231 d | 7b |
| Garrett | May 12 | Oct 5 | 146 d | 6a |
| Gastonville | Apr 18 | Oct 28 | 193 d | 6b |
| Geigertown | Apr 16 | Oct 27 | 194 d | 7a |
| Genesee | May 20 | Sep 29 | 132 d | 5b |
| Georgetown | Apr 28 | Oct 26 | 181 d | 6b |
| Germansville | Apr 21 | Oct 23 | 185 d | 6b |
| Gettysburg | Apr 24 | Oct 21 | 180 d | 7a |
| Gibbon Glade | May 19 | Oct 1 | 135 d | 6a |
| Gibson | May 14 | Oct 1 | 140 d | 6a |
| Gibsonia | Apr 16 | Nov 1 | 199 d | 6b |
| Gifford | May 18 | Oct 1 | 136 d | 5b |
| Gilbert | May 1 | Oct 12 | 164 d | 6b |
| Gilberton | Apr 30 | Oct 22 | 175 d | 6b |
| Gilbertsville | Apr 20 | Oct 23 | 186 d | 7a |
| Gillett | May 6 | Oct 11 | 158 d | 6a |
| Gipsy | May 4 | Oct 13 | 162 d | 6a |
| Girard | Apr 26 | Nov 4 | 192 d | 6b |
| Girardville | Apr 30 | Oct 22 | 175 d | 6b |
| Gladwyne | Apr 8 | Oct 31 | 206 d | 7b |
| Glasgow | May 10 | Oct 5 | 148 d | 6a |
| Glassport | May 2 | Oct 20 | 171 d | 6b |
| Glen Campbell | May 4 | Oct 13 | 162 d | 6a |
| Glen Hope | May 10 | Oct 5 | 148 d | 6a |
| Glen Lyon | May 4 | Oct 11 | 160 d | 6b |
| Glen Mills | Mar 30 | Nov 16 | 231 d | 7a |
| Glen Richey | May 4 | Oct 13 | 162 d | 6a |
| Glen Riddle Lima | Mar 30 | Nov 16 | 231 d | 7b |
| Glen Rock | Apr 19 | Oct 25 | 189 d | 7a |
| Glenmoore | Apr 11 | Nov 1 | 204 d | 7a |
| Glenolden | Apr 2 | Nov 10 | 222 d | 7b |
| Glenshaw | Apr 24 | Oct 27 | 186 d | 6b |
| Glenside | Apr 11 | Nov 1 | 204 d | 7b |
| Glenville | Apr 19 | Oct 25 | 189 d | 7a |
| Goodville | Apr 14 | Nov 1 | 201 d | 7a |
| Gordon | Apr 27 | Oct 20 | 176 d | 6b |
| Gordonville | Apr 14 | Nov 1 | 201 d | 7a |
| Gouldsboro | May 6 | Oct 8 | 155 d | 6a |
| Gradyville | Mar 30 | Nov 16 | 231 d | 7b |
| Grampian | May 4 | Oct 13 | 162 d | 6a |
| Grand Valley | May 12 | Oct 10 | 151 d | 6a |
| Grantham | Apr 9 | Nov 1 | 206 d | 7a |
| Grantville | May 1 | Oct 16 | 168 d | 7a |
| Granville | Apr 21 | Oct 24 | 186 d | 7a |
| Granville Summit | May 16 | Oct 2 | 139 d | 6a |
| Grapeville | Apr 22 | Oct 25 | 186 d | 6b |
| Grassflat | May 21 | Sep 27 | 129 d | 6a |
| Gratz | May 1 | Oct 16 | 168 d | 6b |
| Gray | May 6 | Oct 12 | 159 d | 6a |
| Graysville | May 3 | Oct 15 | 165 d | 6a |
| Great Bend | May 14 | Oct 2 | 141 d | 6a |
| Greeley | May 10 | Oct 4 | 147 d | 6a |
| Green Lane | Apr 26 | Oct 17 | 174 d | 7a |
| Greencastle | Apr 7 | Nov 4 | 211 d | 7a |
| Greenock | May 2 | Oct 20 | 171 d | 6b |
| Greensboro | Apr 28 | Oct 21 | 176 d | 6b |
| Greensburg | May 1 | Oct 13 | 165 d | 6b |
| Greentown | May 10 | Oct 4 | 147 d | 6a |
| Greenville | May 4 | Oct 14 | 163 d | 6a |
| Grindstone | Apr 30 | Oct 18 | 171 d | 6b |
| Grove City | May 7 | Oct 14 | 160 d | 6a |
| Grover | May 16 | Oct 2 | 139 d | 6a |
| Guys Mills | Apr 30 | Oct 23 | 176 d | 6a |
| Gwynedd | Apr 11 | Nov 1 | 204 d | 7a |
| Gwynedd Valley | Apr 11 | Nov 1 | 204 d | 7a |