| 2024年 | 2025年 | 平年値 | |
| 12-16 | 34.4 | 34 | 33.7 |
| 12-17 | 34.5 | 34.1 | 33.8 |
| 12-18 | 34.4 | 34.2 | 33.8 |
| 12-19 | 34.4 | 34.3 | 33.8 |
| 12-20 | 34.4 | 34.2 | 33.8 |
| 12-21 | 34.4 | 34.2 | 33.9 |
| 12-22 | 34.4 | 34.1 | 33.9 |
| 12-23 | 34.5 | 34.2 | 33.8 |
| 12-24 | 34.4 | 34.1 | 33.9 |
| 12-25 | 34.4 | 34.1 | 33.8 |
| 12-26 | 34.3 | 34.1 | 33.8 |
| 12-27 | 34.4 | 34.2 | 33.8 |
| 12-28 | 34.4 | 34.2 | 33.8 |
| 12-29 | 34.5 | 34.1 | 33.8 |
| 12-30 | 34.5 | --- | 33.9 |