| 2025年 | 2026年 | 平年値 | |
| 1-23 | 9.9 | 10.5 | 9.6 |
| 1-24 | 10.1 | 10.1 | 10.2 |
| 1-25 | 10.5 | 10 | 10 |
| 1-26 | 10.2 | 9.1 | 9.6 |
| 1-27 | 9.8 | 9.4 | 9.5 |
| 1-28 | 9.9 | 9.8 | 9.8 |
| 1-29 | 10.4 | 9.7 | 9.7 |
| 1-30 | 10.3 | 9.8 | 9.8 |
| 1-31 | 10 | 9.8 | 9.4 |
| 2-1 | 9.8 | 9.3 | 9.6 |
| 2-2 | 9.9 | 9.1 | 9.3 |
| 2-3 | 9.7 | 9.6 | 9.9 |
| 2-4 | 9.8 | 9.5 | 9.1 |
| 2-5 | 9.4 | 9.3 | 9.3 |
| 2-6 | 9 | --- | 9.3 |