| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 0.2 | 1 | 5 | 12.8 | 18.4 | 22.2 | 25.2 | 27 | 22.3 | 16.3 | 9.4 | 3.3 |
| Average Low Temperature (°C) | -6.7 | -6.3 | -3.2 | 2.1 | 7.5 | 13.3 | 17.3 | 18.5 | 13.4 | 6 | 0.6 | -3.2 |
| Average Precipitation (mm) | 64.6 | 64.5 | 90.3 | 116.2 | 126.1 | 141.6 | 215.3 | 202.4 | 190.9 | 119.7 | 116.1 | 96.9 |
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