| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 5.5 | 5.7 | 9.4 | 15.6 | 20.5 | 24 | 27.7 | 29.8 | 25.3 | 20 | 14.3 | 8.9 |
| Average Low Temperature (°C) | 0 | -0.4 | 1.7 | 6.6 | 11.6 | 16.8 | 21 | 22.5 | 18.2 | 11.7 | 6.5 | 2.5 |
| Average Precipitation (mm) | 206.9 | 139.7 | 123.7 | 114.2 | 137.9 | 167.7 | 230.4 | 139.3 | 223.5 | 150.5 | 206.4 | 224.2 |
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