| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 2 | 2.3 | 5.8 | 11.9 | 16.7 | 21.2 | 24.7 | 27.2 | 23.1 | 17.3 | 11 | 5.4 |
| Average Low Temperature (°C) | -3.4 | -3.2 | -1.2 | 3.9 | 9.4 | 14.4 | 18.5 | 19.8 | 14.9 | 8.4 | 3.1 | -0.6 |
| Average Precipitation (mm) | 98 | 72 | 73.2 | 92 | 104.9 | 111.1 | 155.4 | 170.4 | 175 | 145.6 | 143.8 | 142.6 |
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