| 2025年 | 2026年 | 平年値 | |
| 8-2 | 31.3 | --- | 31.9 |
| 8-3 | 31.3 | --- | 32 |
| 8-4 | 31.6 | 31.6 | 32.2 |
| 8-5 | 31.7 | 32.9 | 32.2 |
| 8-6 | 31.8 | 32.8 | 32.3 |
| 8-7 | 31.8 | 32.6 | 32.3 |
| 8-8 | 31.8 | 32.9 | 31.8 |
| 8-9 | 31 | 33.3 | 32 |
| 8-10 | 31.1 | 33.4 | 32 |
| 8-11 | 31.5 | 33.4 | 32.3 |
| 8-12 | 31.7 | 33.4 | 32.5 |
| 8-13 | 31.5 | 33.4 | 32.5 |
| 8-14 | 31.2 | 33.6 | 32.4 |
| 8-15 | 30.7 | 33.5 | 32.2 |
| 8-16 | 30.8 | --- | 32.3 |