| 2025年 | 2026年 | 平年値 | |
| 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 | 33.5 | 32.3 |
| 8-17 | 31.1 | 33.2 | 32.1 |
| 8-18 | 30.9 | 33 | 32.1 |
| 8-19 | 30.9 | 33.3 | 31.9 |
| 8-20 | 30.7 | 33.3 | 31.6 |
| 8-21 | 30.7 | 33.2 | 31.8 |
| 8-22 | 30.7 | 33 | 31.7 |
| 8-23 | 30.7 | 32.9 | 32 |
| 8-24 | 30.7 | 33 | 31.7 |
| 8-25 | 30.2 | 32.8 | 31.8 |