| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 8.8 | 9 | 12.3 | 17.8 | 22.1 | 25.1 | 28.9 | 30.2 | 26.6 | 21.4 | 16.2 | 11.3 |
| Average Low Temperature (°C) | 2.2 | 2.1 | 4.9 | 9.7 | 14.2 | 18.6 | 22.5 | 23.7 | 20.6 | 14.9 | 9.5 | 4.3 |
| Average Precipitation (mm) | 65.5 | 91.2 | 187.3 | 207.9 | 258.4 | 272.4 | 210.3 | 206.3 | 406.5 | 232.8 | 161 | 47.9 |
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