| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 4.4 | 4.8 | 8 | 13.7 | 18.2 | 21.2 | 24.7 | 26.9 | 23.5 | 18.5 | 12.7 | 7.4 |
| Average Low Temperature (°C) | -2.8 | -2.5 | -0.1 | 5 | 10.3 | 14.9 | 18.8 | 20.8 | 16.7 | 10 | 4 | -0.3 |
| Average Precipitation (mm) | 33.1 | 44.3 | 70.3 | 91.8 | 98.2 | 111.6 | 131 | 127 | 163.1 | 104.1 | 65.1 | 24.8 |
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