| 2025年 | 2026年 | 平年値 | |
| 6-4 | --- | --- | 20.5 |
| 6-5 | --- | 23.2 | 20.8 |
| 6-6 | --- | 23 | 20.6 |
| 6-7 | --- | 22.9 | 20.7 |
| 6-8 | --- | 22.5 | 20.9 |
| 6-9 | --- | 22.3 | 21 |
| 6-10 | --- | 22.8 | 21.3 |
| 6-11 | --- | 23.1 | 21.2 |
| 6-12 | --- | 23.4 | 21.4 |
| 6-13 | --- | 23.6 | 21.5 |
| 6-14 | --- | 23.6 | 21.7 |
| 6-15 | --- | 23.8 | 21.7 |
| 6-16 | --- | 23.7 | 21.7 |
| 6-17 | --- | 23.3 | 21.9 |
| 6-18 | --- | 22.8 | 21.9 |