| 2025年 | 2026年 | 平年値 | |
| 8-30 | 28.1 | 28.3 | 27.3 |
| 8-31 | 28.2 | 28.3 | 26.9 |
| 9-1 | 28.1 | 27.9 | 27 |
| 9-2 | 28.4 | 27.6 | 27.1 |
| 9-3 | 28.6 | 27.5 | 27.2 |
| 9-4 | 28.5 | 27 | 27.2 |
| 9-5 | --- | 26.6 | 27 |
| 9-6 | --- | 27.3 | 27 |
| 9-7 | 28.5 | 27.1 | 27.1 |
| 9-8 | --- | --- | 26.8 |
| 9-9 | --- | --- | 26.7 |
| 9-10 | --- | --- | 26.8 |
| 9-11 | --- | 26.6 | 26.8 |
| 9-12 | --- | 26.7 | 26.9 |
| 9-13 | --- | 27 | 26.9 |