| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 1.7 | 2.5 | 6.7 | 14.2 | 19.8 | 23.2 | 26.5 | 28.1 | 23.2 | 17.4 | 10.6 | 4.5 |
| Average Low Temperature (°C) | -5.9 | -5.7 | -2.6 | 2.8 | 8 | 13.7 | 17.9 | 19.2 | 14.2 | 6.7 | 1.2 | -2.7 |
| Average Precipitation (mm) | 50.6 | 54.9 | 80.1 | 93.8 | 103.3 | 114.9 | 165.7 | 177.8 | 157.5 | 97.8 | 93.1 | 64.5 |
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| Average High Temperature (°C) | 9.8 | 10 | 12.9 | 18.4 | 22.7 | 25.2 | 29 | 30.8 | 26.8 | 21.6 | 16.7 | 12.3 |
| Average Low Temperature (°C) | 2.1 | 2.4 | 5.1 | 10.5 | 15.1 | 18.9 | 22.5 | 24.2 | 20.7 | 15 | 9.5 | 4.6 |
| Average Precipitation (mm) | 48.6 | 60.2 | 114.5 | 130.3 | 128 | 164.9 | 161.5 | 155.1 | 208.5 | 163.1 | 92.5 | 39.6 |
| Rainy Days | 4.6 | 5.8 | 9.5 | 10.1 | 9.6 | 11.9 | 10.4 | 8.2 | 11.3 | 9.1 | 6.2 | 3.8 |
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