| 2025年 | 2026年 | 平年値 | |
| 3-26 | --- | 13.1 | 13 |
| 3-27 | 13.3 | --- | 13.1 |
| 3-28 | 12.2 | --- | 12.5 |
| 3-29 | 12.7 | --- | 12.8 |
| 3-30 | 12.7 | 14.3 | 13 |
| 3-31 | 12.2 | 14.6 | 13.2 |
| 4-1 | 11.7 | 14.4 | 14 |
| 4-2 | 12.1 | 14.8 | 13.1 |
| 4-3 | 12.1 | 15.5 | 13.2 |
| 4-4 | 12.4 | 15.5 | 13.3 |
| 4-5 | 12.8 | 16 | 14 |
| 4-6 | 13.2 | 16.4 | 13.8 |
| 4-7 | 13.4 | 16 | 14.1 |
| 4-8 | 13.1 | 15.6 | 14.6 |
| 4-9 | 13.2 | 15 | 14.2 |