| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 7.3 | 8 | 12.5 | 18.7 | 23.6 | 26.5 | 29.7 | 30.9 | 26.5 | 21.3 | 15.8 | 10.2 |
| Average Low Temperature (°C) | -0.5 | -0.6 | 1.9 | 6.4 | 11.4 | 16.7 | 21.2 | 21.7 | 17.3 | 10.3 | 5.2 | 1 |
| Average Precipitation (mm) | 121.8 | 114.7 | 151 | 129 | 145.1 | 250.8 | 285.6 | 181.5 | 218.9 | 120.3 | 113.6 | 99.7 |
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