| 2024年 | 2025年 | 平年値 | |
| 8-17 | 29.9 | 27.3 | 26.5 |
| 8-18 | 30.1 | 27.5 | 26.2 |
| 8-19 | 25.9 | 27.9 | 27.5 |
| 8-20 | 27 | 27.3 | 29.4 |
| 8-21 | --- | 30.3 | 30.2 |
| 8-22 | --- | 30.5 | 30.1 |
| 8-23 | --- | 30.4 | 29.7 |
| 8-24 | --- | 30.9 | 28.1 |
| 8-25 | --- | 28.8 | 27.2 |
| 8-26 | --- | 25.5 | 27.8 |
| 8-27 | --- | 29.3 | 28.9 |
| 8-28 | --- | 28.8 | 29 |
| 8-29 | --- | 28.6 | 28.2 |
| 8-30 | --- | 29.3 | 27.2 |
| 8-31 | --- | --- | 26.3 |