| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 2°C | -22°C | -9°C |
| February | 3°C | -19°C | -7°C |
| March | 3°C | -9°C | -1°C |
| April | 7°C | -12°C | 0°C |
| May | 14°C | -3°C | 6°C |
| June | 19°C | 7°C | 12°C |
| July | 22°C | 11°C | 16°C |
| August | 19°C | 13°C | 16°C |
| September | 20°C | 9°C | 14°C |
| October | 12°C | -2°C | 4°C |
| November | 6°C | -9°C | -1°C |
| December | 3°C | -14°C | -5°C |
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