| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 9 | 9.4 | 12.9 | 18.2 | 22.7 | 25.6 | 29.2 | 30.5 | 27.1 | 22.3 | 16.9 | 11.7 |
| Average Low Temperature (°C) | 0.5 | 0.8 | 3.8 | 8.5 | 13.3 | 18.5 | 22.8 | 23.7 | 19.4 | 12.7 | 7.3 | 2.4 |
| Average Precipitation (mm) | 49.1 | 69.5 | 135 | 153.3 | 184.7 | 285.5 | 287.4 | 148 | 174.7 | 80.3 | 69.6 | 34.8 |
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