| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 3.9 | 4.5 | 9.1 | 17 | 22.2 | 24.8 | 27.9 | 29.8 | 24.3 | 18.5 | 12.8 | 7.1 |
| Average Low Temperature (°C) | -5.3 | -5.3 | -1.7 | 3.7 | 9.5 | 15 | 18.9 | 19.9 | 15.6 | 8.3 | 1.9 | -2.9 |
| Average Precipitation (mm) | 35.1 | 45.6 | 84.9 | 79 | 97.3 | 130.5 | 130.3 | 96.9 | 152.5 | 94 | 57.4 | 24.8 |
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