| 玉原ダム | 04/06 |
| 貯水率(%) | |
| 12時間履歴 | ||
| 04:00 | 90.4 | ▲ |
| 03:00 | 89.7 | ▲ |
| 02:00 | 87.4 | ▲ |
| 01:00 | 84.9 | ▲ |
| 00:00 | 83.3 | - |
| 23:00 | 83.3 | - |
| 22:00 | 83.3 | - |
| 21:00 | 83.3 | ▲ |
| 20:00 | 83.2 | ▼ |
| 19:00 | 84.1 | ▼ |
| 18:00 | 85.3 | - |
| 17:00 | 85.3 | ▲ |
| 最新 | 88.1 | |
| 前日 | 78.4 | |
| 前々日 | 76.4 |
| 2時間履歴(10分) | ||
| 04:20 | 90.4 | - |
| 04:10 | 90.4 | - |
| 04:00 | 90.4 | - |
| 03:50 | 90.4 | - |
| 03:40 | 90.4 | ▲ |
| 03:30 | 90.3 | ▲ |
| 03:20 | 90.1 | ▲ |
| 03:10 | 89.9 | ▲ |
| 03:00 | 89.7 | ▲ |
| 02:50 | 89.4 | ▲ |
| 02:40 | 89.0 | ▲ |
| 02:30 | 88.6 | ▲ |