| 2025年 | 2026年 | 平年値 | |
| 8-30 | 31.9 | 32.8 | 32.3 |
| 8-31 | 31.7 | 32.3 | 32.5 |
| 9-1 | 31.8 | 31.7 | 32.2 |
| 9-2 | 31.8 | 33.5 | 32.3 |
| 9-3 | 31.6 | 33 | 32.2 |
| 9-4 | --- | 33 | 32.3 |
| 9-5 | --- | 33.1 | 31.9 |
| 9-6 | --- | 33.1 | 31.8 |
| 9-7 | --- | 33.2 | 31.4 |
| 9-8 | --- | 33 | 31.5 |
| 9-9 | --- | 32.4 | 31.7 |
| 9-10 | --- | 32.1 | 31.9 |
| 9-11 | --- | 33.5 | 32.1 |
| 9-12 | --- | 33.6 | 32 |
| 9-13 | --- | 33.5 | 32.3 |