| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 9.8 | 11.2 | 15.1 | 20.7 | 24.4 | 27 | 30.7 | 31.5 | 28.2 | 23.4 | 17.6 | 11.9 |
| Average Low Temperature (°C) | -0.4 | 0.6 | 4 | 8.7 | 12.9 | 17.9 | 21.8 | 22.1 | 18.7 | 12.1 | 6.4 | 1.1 |
| Average Precipitation (mm) | 73 | 96.7 | 169.8 | 208 | 230.8 | 515.6 | 455.2 | 207.4 | 211.2 | 99.1 | 77.6 | 62.6 |
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