| 2025年 | 2026年 | 平年値 | |
| 1-25 | 9.8 | 9.5 | 8.4 |
| 1-26 | --- | 9.5 | 8.4 |
| 1-27 | 9.6 | 9.6 | 8.7 |
| 1-28 | 9.6 | 9 | 8.6 |
| 1-29 | 9.2 | 8.6 | 8.3 |
| 1-30 | 8.8 | --- | 8.5 |
| 1-31 | 8.8 | 8.5 | 8.4 |
| 2-1 | 9 | 8.7 | 8.7 |
| 2-2 | 9.7 | 9 | 8.8 |
| 2-3 | 9.5 | 9.2 | 8.9 |
| 2-4 | 9.2 | 9.1 | 9 |
| 2-5 | 8.3 | 9.3 | 8.9 |
| 2-6 | 8 | 9.4 | 8.5 |
| 2-7 | 7.9 | 9.1 | 8.4 |
| 2-8 | 7.1 | 8.2 | 8.9 |