Wetterstationen des Deutschen Wetterdienstes (DWD)
| Stationsname (Ort) | Seehöhe | Bundesland |
| Greuelsiefen | 65 m | NW |
| Greußen | 163 m | TH |
| Greven | 45 m | NW |
| Greven-Granzin | 52 m | MV |
| Grevenbroich | 50 m | NW |
| Grevenbroich (WV NRW) | 51 m | NW |
| Grevenbroich-Neurath | 71 m | NW |
| Grevesmühlen | 25 m | MV |
| Grevesmühlen (PH) | 30 m | MV |
| Grevesmühlen-Wotenitz | 20 m | MV |
| Grieben | 38 m | ST |
| Griebenow-Kreutzmannshagen | 13 m | MV |
| Griebo | 74 m | ST |
| Griesbach i. Rottal | 440 m | BY |
| Griesbach, Bad im Rottal-Kemading | 390 m | BY |
| Grießen | 98 m | BB |
| Griesheim | 95 m | HE |
| Grimersum | 1 m | NI |
| Grimma | 150 m | SN |
| Grimma (PH) | 160 m | SN |
| Grimma-Kleinbothen | 134 m | SN |
| Grimme | 100 m | ST |
| Grimmen (PH) | 15 m | MV |
| Grimmens | 3 m | NI |
| Grimmschwinden | 470 m | BY |
| Grischow | 70 m | MV |
| Grißheim | 220 m | BW |
| Grissenbach | 320 m | NW |
| Gröben | 155 m | ST |
| Gröben-Jütchendorf | 37 m | BB |
| Gröbenzell | 508 m | BY |
| Gröbitz | 200 m | ST |
| Gröbzig | 78 m | ST |
| Gröbzig (PH) | 80 m | ST |
| Gröditz | 93 m | SN |
| Groitzsch b. Pegau-Berndorf | 150 m | SN |
| Grombach | 240 m | BW |
| Grömitz | 15 m | SH |
| Gröna | 70 m | ST |
| Gronau | 40 m | NW |
| Gronau/Leine | 80 m | NI |
| Gronau/Westf. | 40 m | NW |
| Grönebach | 610 m | NW |
| Grönenbach | 720 m | BY |
| Grönenbach-Thal | 676 m | BY |
| Gröningen | 91 m | ST |
| Gröningen b. Oschersleben | 90 m | ST |
| Groothusen | 1 m | NI |
| Groß Bademeusel | 90 m | BB |
| Groß Berßen | 27 m | NI |