| 2025年 | 2026年 | 平年値 | |
| 1-24 | 10.5 | 10.6 | 11.1 |
| 1-25 | 10.4 | 10.3 | 11 |
| 1-26 | 10.6 | 10 | 10.9 |
| 1-27 | 11 | 10.2 | 10.6 |
| 1-28 | 10.9 | 10.1 | 10.6 |
| 1-29 | 10.6 | 10 | 10.5 |
| 1-30 | 10.5 | 9.8 | 10.4 |
| 1-31 | 10.5 | 9.7 | 10.1 |
| 2-1 | 10.4 | 9.8 | 10.1 |
| 2-2 | 10.3 | 9.7 | 10.1 |
| 2-3 | 10 | 9.6 | 10.1 |
| 2-4 | 9.6 | --- | 10.3 |
| 2-5 | 9.3 | --- | 10.2 |
| 2-6 | 9.4 | --- | 10.1 |
| 2-7 | 9.2 | --- | 10.1 |