| 八ッ場ダム | 06/15 |
| 貯水率(%) | |
| 12時間履歴 | ||
| 16:00 | 51.3 | ▼ |
| 15:00 | 51.4 | - |
| 14:00 | 51.4 | ▼ |
| 13:00 | 51.5 | ▼ |
| 12:00 | 51.6 | ▼ |
| 11:00 | 51.7 | ▼ |
| 10:00 | 51.8 | ▼ |
| 09:00 | 51.9 | - |
| 08:00 | 51.9 | ▼ |
| 07:00 | 52.0 | - |
| 06:00 | 52.0 | - |
| 05:00 | 52.0 | ▼ |
| 2時間履歴(10分) | ||
| 16:10 | 51.2 | ▼ |
| 16:00 | 51.3 | - |
| 15:50 | 51.3 | - |
| 15:40 | 51.3 | - |
| 15:30 | 51.3 | - |
| 15:20 | 51.3 | - |
| 15:10 | 51.3 | ▼ |
| 15:00 | 51.4 | - |
| 14:50 | 51.4 | - |
| 14:40 | 51.4 | - |
| 14:30 | 51.4 | - |
| 14:20 | 51.4 | - |