| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 9.1 | 9.4 | 12.5 | 17.6 | 21.9 | 24.9 | 29.1 | 30.3 | 26.3 | 21.6 | 16.8 | 11.9 |
| Average Low Temperature (°C) | 2.4 | 2.2 | 4.3 | 8.8 | 13.3 | 17.9 | 22.5 | 23.1 | 18.9 | 13 | 8.4 | 4.3 |
| Average Precipitation (mm) | 91 | 89.6 | 122 | 129.1 | 132.8 | 235 | 244.5 | 171 | 225.3 | 96.2 | 93.3 | 73.4 |
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