Wetterstationen des Deutschen Wetterdienstes (DWD)
| Stationsname (Ort) | Seehöhe | Bundesland |
| Hüttengesäß | 160 m | HE |
| Hüttental | 260 m | NW |
| Hüttgeswasen | 650 m | RP |
| Hutthurm (PH) | 460 m | BY |
| Hüttisheim | 513 m | BW |
| Huy-Neinstedt | 200 m | ST |
| Huy-Neinstedt (PH) | 200 m | ST |
| Huy-Pabstorf | 112 m | ST |
| Ibbenbüren | 68 m | NW |
| Ibbenbüren (PH) | 70 m | NW |
| Iburg, Bad (Ph) | 120 m | NI |
| Iburg-Glane, Bad | 105 m | NI |
| Ichenhausen | 480 m | BY |
| Ichenhausen-Autenried | 497 m | BY |
| Ichstedt | 138 m | TH |
| Icking | 565 m | BY |
| Icking/Isartal-Holzen | 640 m | BY |
| Idar-Oberstein | 376 m | RP |
| Idar-Oberstein (Hauptstr.) | 264 m | RP |
| Idar-Oberstein (PH) | 310 m | RP |
| Iden-Rohrbeck | 25 m | ST |
| Idensen | 50 m | NI |
| Idstedt | 20 m | SH |
| Idstein | 280 m | HE |
| Idstein | 285 m | HE |
| Idstein-Walsdorf | 240 m | HE |
| Iffeldorf | 600 m | BY |
| Iffens | 1 m | NI |
| Igelswies | 610 m | BW |
| Igersheim | 220 m | BW |
| Igersheim-Harthausen | 330 m | BW |
| Ihlienworth | 1 m | NI |
| Ihlow-Mehlsdorf | 83 m | BB |
| Ihlow/Ostfriesl.-Riepe | 0 m | NI |
| Ihrhove | 2 m | NI |
| Ihringen | 193 m | BW |
| Ihrlerstein | 480 m | BY |
| Ilbeshausen | 440 m | HE |
| Ilertissen | 525 m | BY |
| Ilfeld | 265 m | TH |
| Illereichen | 530 m | BY |
| Illertissen | 512 m | BY |
| Illertissen-Jedesheim | 540 m | BY |
| Illingen | 307 m | SL |
| Illingen/Württ. | 240 m | BW |
| Illkofen | 330 m | BY |
| Illmensee | 700 m | BW |
| Illschwang | 490 m | BY |
| Ilmenau | 498 m | TH |
| Ilmenau (Ph) | 505 m | TH |