| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 11.3 | 11.6 | 14.6 | 19.1 | 22.6 | 25.2 | 28.8 | 30.1 | 27.3 | 22.9 | 18.4 | 13.8 |
| Average Low Temperature (°C) | 1.3 | 1.6 | 4.4 | 9.5 | 13.6 | 18.1 | 22 | 22.8 | 19.7 | 13.8 | 8.3 | 3.3 |
| Average Precipitation (mm) | 97 | 132.1 | 238.1 | 340.8 | 343.5 | 428.2 | 418.5 | 494.6 | 717.6 | 358.5 | 261.9 | 91.6 |
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