| 矢木沢ダム | 06/09 |
| 貯水率(%) | |
| 12時間履歴 | ||
| 01:00 | 98.7 | - |
| 00:00 | 98.8 | - |
| 23:00 | 98.8 | - |
| 22:00 | 98.8 | - |
| 21:00 | 98.8 | - |
| 20:00 | 98.7 | - |
| 19:00 | 98.7 | - |
| 18:00 | 98.6 | - |
| 17:00 | 98.7 | - |
| 16:00 | 98.7 | - |
| 15:00 | 98.7 | - |
| 14:00 | 98.7 | - |
| 2時間履歴(10分) | ||
| 01:50 | 98.7 | - |
| 01:40 | 98.8 | - |
| 01:30 | 98.7 | - |
| 01:20 | 98.8 | - |
| 01:10 | 98.7 | - |
| 01:00 | 98.7 | - |
| 00:50 | 98.7 | - |
| 00:40 | 98.7 | - |
| 00:30 | 98.8 | - |
| 00:20 | 98.8 | - |
| 00:10 | 98.7 | - |
| 00:00 | 98.8 | - |