| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 0 | 0.1 | 3.4 | 9.1 | 14.1 | 17.2 | 21 | 23.3 | 20.8 | 15.5 | 8.7 | 2.9 |
| Average Low Temperature (°C) | -4.4 | -4.3 | -1.8 | 2.7 | 7.2 | 11.4 | 16 | 18.5 | 15.4 | 9.5 | 3 | -1.8 |
| Average Precipitation (mm) | 57 | 48.2 | 54.6 | 76.8 | 99.8 | 118.6 | 141.4 | 205.9 | 174.4 | 99.6 | 84.3 | 58.2 |
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