| 2025年 | 2026年 | 平年値 | |
| 9-6 | 28.3 | 27.5 | 26.9 |
| 9-7 | 27.8 | 27.4 | 26.9 |
| 9-8 | 27.3 | 27.4 | 26.7 |
| 9-9 | 27.1 | 27.2 | 26.7 |
| 9-10 | 26.9 | 26.7 | 26.9 |
| 9-11 | 26.9 | 26.8 | 26.8 |
| 9-12 | --- | 27.1 | 27.1 |
| 9-13 | 27.9 | 27.1 | 27.1 |
| 9-14 | 28.5 | 27.1 | 27.2 |
| 9-15 | 28.6 | 27.1 | 27 |
| 9-16 | 28.8 | 26.9 | 27 |
| 9-17 | 29 | 26.7 | 26.9 |
| 9-18 | 29 | 27 | 26.9 |
| 9-19 | 28.6 | 27.1 | 26.8 |
| 9-20 | 28.1 | 26.8 | 26.6 |