| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | -5°C | -18°C | -11°C |
| February | -5°C | -25°C | -15°C |
| March | -1°C | -20°C | -10°C |
| April | 4°C | -14°C | -5°C |
| May | 12°C | -10°C | 3°C |
| June | 17°C | -1°C | 8°C |
| July | 22°C | 7°C | 13°C |
| August | 21°C | 6°C | 13°C |
| September | 19°C | -3°C | 9°C |
| October | 8°C | -8°C | 1°C |
| November | 2°C | -14°C | -5°C |
| December | -3°C | -17°C | -10°C |
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