| 2025年 | 2026年 | 平年値 | |
| 1-12 | 32.4 | 33 | 31.7 |
| 1-13 | 32.5 | 33 | 31.7 |
| 1-14 | 32.4 | 33 | 31.7 |
| 1-15 | 32.4 | 32.9 | 31.7 |
| 1-16 | 32.3 | 32.9 | 31.7 |
| 1-17 | 32.4 | 32.9 | 31.7 |
| 1-18 | 32.4 | 33 | 31.7 |
| 1-19 | 32.4 | 33 | 31.8 |
| 1-20 | 32.3 | 33 | 32 |
| 1-21 | 32.3 | 32.9 | 31.8 |
| 1-22 | 32.3 | --- | 31.8 |
| 1-23 | 32.2 | --- | 31.8 |
| 1-24 | 32.1 | --- | 31.8 |
| 1-25 | 32.2 | --- | 31.9 |
| 1-26 | 32.3 | --- | 31.9 |