| 2025年 | 2026年 | 平年値 | |
| 8-27 | 26.7 | 36 | 28 |
| 8-28 | 29.8 | 38.6 | 29.3 |
| 8-29 | 30.5 | --- | 29.1 |
| 8-30 | 30.9 | --- | 29.6 |
| 8-31 | 31.5 | --- | 29.1 |
| 9-1 | 31.1 | 28.6 | 29.8 |
| 9-2 | 31 | 29.1 | 29.7 |
| 9-3 | 30.9 | 28.8 | 29.4 |
| 9-4 | 27.8 | 28.7 | 27.7 |
| 9-5 | 27.3 | 28.1 | 27.5 |
| 9-6 | 28.1 | 0 | 28.2 |
| 9-7 | 28.9 | 0 | 28.6 |
| 9-8 | 29 | 0 | 28.9 |
| 9-9 | 30.4 | 0 | 29.5 |
| 9-10 | 29.7 | 0 | 29.7 |