| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 6.6 | 7 | 10.8 | 17.1 | 21.7 | 24.8 | 28.1 | 30 | 25.7 | 20.3 | 14.9 | 9.5 |
| Average Low Temperature (°C) | -1.9 | -1.8 | 1.1 | 5.8 | 11 | 16.4 | 20.5 | 21.3 | 17.4 | 10.5 | 4.6 | -0.2 |
| Average Precipitation (mm) | 41.8 | 55.6 | 101 | 109.7 | 157.4 | 217.3 | 183.5 | 124 | 194 | 108.9 | 71.4 | 35.6 |
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