| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 3.5 | 3.6 | 7.1 | 13.3 | 17.7 | 20.2 | 23.9 | 25.1 | 20.9 | 15.8 | 11.6 | 6.6 |
| Average Low Temperature (°C) | -8.8 | -8.1 | -3.7 | 1.5 | 6.3 | 11.6 | 15.6 | 16.3 | 13 | 5.9 | 0 | -5.9 |
| Average Precipitation (mm) | 65.4 | 86.9 | 187 | 188.5 | 196 | 252 | 188.5 | 309.8 | 368.7 | 233.5 | 165.9 | 49.1 |
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