| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 1.6 | 2 | 6 | 12.5 | 17.5 | 19.5 | 23.1 | 25.7 | 22.5 | 17.4 | 10.7 | 4.8 |
| Average Low Temperature (°C) | -4.3 | -4 | -1.4 | 3.7 | 8.7 | 12.7 | 16.8 | 19.2 | 15.3 | 8.9 | 2.9 | -1.4 |
| Average Precipitation (mm) | 38.9 | 46.3 | 48.4 | 59.1 | 85.9 | 96.7 | 119.6 | 143.3 | 170.8 | 83.8 | 66.1 | 44.5 |
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