| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 5.1 | 5 | 9 | 16.2 | 21 | 24.1 | 27.6 | 29.3 | 25.1 | 19.8 | 14.2 | 8.7 |
| Average Low Temperature (°C) | -1.2 | -1.8 | 0.7 | 5.9 | 11.7 | 16.5 | 20.2 | 21.2 | 17.2 | 10.9 | 5.6 | 1.3 |
| Average Precipitation (mm) | 302.3 | 203.5 | 161.8 | 127 | 126.6 | 184.9 | 237.7 | 171 | 236 | 186.5 | 265.6 | 300.8 |
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