| 2024年 | 2025年 | 平年値 | |
| 8-1 | 25.6 | --- | 26 |
| 8-2 | 27 | --- | 25.9 |
| 8-3 | 26.3 | --- | 25.7 |
| 8-4 | 24 | --- | 25.6 |
| 8-5 | 25.6 | --- | 25.9 |
| 8-6 | 25.2 | --- | 26.5 |
| 8-7 | 25.4 | --- | 27.3 |
| 8-8 | 25.2 | --- | 27 |
| 8-9 | 27.7 | --- | 27.6 |
| 8-10 | 27.6 | --- | 27.1 |
| 8-11 | 27.4 | --- | 28.1 |
| 8-12 | 27.5 | --- | 28.1 |
| 8-13 | 27.6 | --- | 27.5 |
| 8-14 | 27.5 | --- | 27.5 |
| 8-15 | 27.9 | --- | 26.6 |