| 2025年 | 2026年 | 平年値 | |
| 9-2 | 27.7 | 29 | 27.6 |
| 9-3 | 26.6 | 28.8 | 28.1 |
| 9-4 | 26.8 | 28.7 | 27.5 |
| 9-5 | 27.4 | 28.1 | 27.4 |
| 9-6 | 27.9 | --- | 27.8 |
| 9-7 | 27.8 | --- | 27.4 |
| 9-8 | 28.1 | --- | 27.4 |
| 9-9 | 28.3 | --- | 27.5 |
| 9-10 | 28.2 | --- | 27.7 |
| 9-11 | 27 | --- | 27.6 |
| 9-12 | 27.6 | --- | 27.7 |
| 9-13 | 26.9 | --- | 27.5 |
| 9-14 | --- | --- | 27.7 |
| 9-15 | 25.2 | --- | 26.9 |
| 9-16 | 26.8 | --- | 27.3 |