| 2025年 | 2026年 | 平年値 | |
| 8-22 | 27.9 | 27.4 | 26.6 |
| 8-23 | 27.3 | 27.8 | 26.7 |
| 8-24 | 27.7 | 27.7 | 26.9 |
| 8-25 | 27 | 27.6 | 26.9 |
| 8-26 | 27.1 | 27.7 | 27.1 |
| 8-27 | 27.1 | 27.8 | 27.1 |
| 8-28 | 27.5 | 27.9 | 27.1 |
| 8-29 | 28.4 | 28 | 27.3 |
| 8-30 | 28.5 | 28.1 | 27.2 |
| 8-31 | 28.8 | 28.3 | 27.1 |
| 9-1 | 28.8 | 28.1 | 27 |
| 9-2 | 29.3 | --- | 27 |
| 9-3 | 29.3 | --- | 27 |
| 9-4 | 28.7 | --- | 27 |
| 9-5 | 27.8 | --- | 26.8 |