| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 4.4 | 4.6 | 8.9 | 16 | 20.9 | 23.8 | 27.2 | 29.4 | 24.8 | 19.3 | 13.9 | 7.9 |
| Average Low Temperature (°C) | -1 | -1.6 | 0.7 | 6 | 11.3 | 16.1 | 20 | 20.9 | 16.9 | 10.8 | 5.6 | 1.4 |
| Average Precipitation (mm) | 324.2 | 221.7 | 177 | 157.3 | 178.2 | 214.2 | 265.7 | 191.9 | 258.6 | 220.2 | 289.4 | 314.5 |
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