| 2024年 | 2025年 | 平年値 | |
| 8-17 | 30.9 | 31.9 | 31.3 |
| 8-18 | 30.9 | 31.9 | 31.4 |
| 8-19 | 31 | 31.8 | 31.4 |
| 8-20 | 31.1 | 31.9 | 31.4 |
| 8-21 | 31.8 | 31.8 | 31.6 |
| 8-22 | 31.9 | 32 | 31.4 |
| 8-23 | 31.8 | 32.2 | 31.4 |
| 8-24 | 31.6 | 32.1 | 31.3 |
| 8-25 | 31.2 | 32.3 | 31.4 |
| 8-26 | 31.2 | 32.3 | 31.3 |
| 8-27 | 31.2 | --- | 31.4 |
| 8-28 | 31.6 | --- | 31.4 |
| 8-29 | 31.5 | --- | 31.4 |
| 8-30 | 31.3 | --- | 31.4 |
| 8-31 | 31.4 | --- | 31.4 |