| 2025年 | 2026年 | 平年値 | |
| 9-10 | 27.9 | --- | 27.9 |
| 9-9 | 28.1 | --- | 28.1 |
| 9-8 | 28.3 | --- | 28.3 |
| 9-7 | 28.3 | --- | 28.3 |
| 9-6 | 28.3 | 27.6 | 28.3 |
| 9-5 | 27.7 | 27.8 | 27.7 |
| 9-4 | 28.5 | 27.7 | 28.5 |
| 9-3 | 29.1 | 27.7 | 29.1 |
| 9-2 | 29 | 27.8 | 29 |
| 9-1 | 28.5 | 27.7 | 28.5 |
| 8-31 | 28.5 | 28.1 | 28.5 |
| 8-30 | 28.2 | 27.9 | 28.2 |
| 8-29 | 28 | 27.9 | 28 |
| 8-28 | 28.1 | 27.8 | 28.1 |
| 8-27 | 27.7 | 27.8 | 27.7 |