| 2025年 | 2026年 | 平年値 | |
| 1-27 | --- | 15.7 | 15.7 |
| 1-28 | --- | 15.4 | 15.2 |
| 1-29 | --- | 15.1 | 16 |
| 1-30 | --- | --- | 15.3 |
| 1-31 | --- | 14.7 | 15.6 |
| 2-1 | --- | 15.1 | 15.5 |
| 2-2 | --- | 15.3 | 15.6 |
| 2-3 | --- | 15.6 | 15.4 |
| 2-4 | --- | 15.8 | 15.1 |
| 2-5 | --- | 15.6 | 14.9 |
| 2-6 | --- | 15.2 | 14.8 |
| 2-7 | --- | 15.3 | 14.4 |
| 2-8 | --- | 14.4 | 15 |
| 2-9 | --- | 14.7 | 14.8 |
| 2-10 | --- | 14.6 | 15.1 |