| 2024年 | 2025年 | 平年値 | |
| 8-17 | 28.1 | 27.3 | 26.2 |
| 8-18 | --- | 27.5 | 25.9 |
| 8-19 | 28.6 | 27.9 | 26.2 |
| 8-20 | 28.1 | 28.3 | 26.3 |
| 8-21 | 28.1 | 28.5 | 26.3 |
| 8-22 | 27.9 | 28.5 | 26.4 |
| 8-23 | 27.6 | 28.3 | 26.6 |
| 8-24 | 27.6 | 28.3 | 26.4 |
| 8-25 | 27.8 | 28.5 | 26.5 |
| 8-26 | 27.4 | 28.5 | 26.8 |
| 8-27 | 27.6 | 28.3 | 26.9 |
| 8-28 | 27.5 | 28.2 | 26.5 |
| 8-29 | 26.8 | 28.6 | 26.8 |
| 8-30 | 26.5 | 28.1 | 27.2 |
| 8-31 | 25.8 | --- | 26.9 |