| 2025年 | 2026年 | 平年値 | |
| 3-19 | --- | 15.8 | 12.4 |
| 3-20 | --- | 15.9 | 13.1 |
| 3-21 | --- | 17 | 11.8 |
| 3-22 | --- | 17 | 11.6 |
| 3-23 | --- | 17.6 | 11.8 |
| 3-24 | --- | 16.9 | 12.1 |
| 3-25 | --- | 16.7 | 14.2 |
| 3-26 | --- | 17 | 13.6 |
| 3-27 | --- | --- | 11.9 |
| 3-28 | --- | --- | 14 |
| 3-29 | --- | --- | 15 |
| 3-30 | --- | 18.1 | 14.8 |
| 3-31 | --- | 17.5 | |
| 4-1 | --- | 16.8 | |
| 4-2 | --- | 17.4 | 16.2 |