| 2024年 | 2025年 | 平年値 | |
| 2025年 | 2026年 | 平年値 | |
| 12-18 | 13.8 | --- | 13.5 |
| 12-19 | 13.1 | --- | 13.8 |
| 12-20 | 12.4 | --- | 13.1 |
| 12-21 | 12.2 | --- | 12.9 |
| 12-22 | 13.2 | --- | 12.6 |
| 12-23 | 12 | --- | 12.7 |
| 12-24 | 11.5 | --- | 12.6 |
| 12-25 | 12.3 | 14.1 | 12.2 |
| 12-26 | 12.3 | 13.8 | 12.2 |
| 12-27 | 12.4 | 13.8 | 11.7 |
| 12-28 | 12.2 | 12.6 | 11.8 |
| 12-29 | 11.5 | 12.6 | 11.8 |
| 12-30 | 11.6 | 12.4 | 11.7 |
| 12-31 | 11.5 | 12.6 | 11.6 |
| 1-1 | 11.6 | --- | 11.2 |