| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 8 | 8.4 | 12.2 | 18.6 | 23.1 | 26.1 | 30.1 | 31.4 | 27.1 | 21.4 | 15.9 | 10.7 |
| Average Low Temperature (°C) | -1.4 | -1.3 | 1 | 6.1 | 11.4 | 16.7 | 20.9 | 21.5 | 17.6 | 10.7 | 4.7 | 0 |
| Average Precipitation (mm) | 43.9 | 54.6 | 95.5 | 112.5 | 140 | 213.6 | 200.7 | 128.5 | 187.3 | 108.5 | 68.7 | 37 |
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