| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 1.1 | 1.8 | 5.9 | 13.3 | 19 | 22.4 | 25.6 | 27.5 | 22.6 | 16.8 | 10.3 | 4.2 |
| Average Low Temperature (°C) | -7.1 | -6.7 | -3.4 | 1.8 | 7.1 | 13 | 17.2 | 18.6 | 13.8 | 6.3 | 0.5 | -3.4 |
| Average Precipitation (mm) | 37.1 | 40.1 | 67.1 | 95.1 | 97.1 | 116.1 | 150 | 194.2 | 152.6 | 98.4 | 82.5 | 46.8 |
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