| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 0.7 | 1.5 | 5.8 | 14.2 | 20 | 23.9 | 27.1 | 29.3 | 24.2 | 17.9 | 10.7 | 4.1 |
| Average Low Temperature (°C) | -4.5 | -4.2 | -1.9 | 3.6 | 9.2 | 14.8 | 19 | 20.3 | 15.6 | 8.4 | 2.6 | -1.7 |
| Average Precipitation (mm) | 164.9 | 122.5 | 79.4 | 88.1 | 97 | 117.6 | 160.8 | 165.6 | 139.3 | 131.3 | 162.4 | 167.8 |
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