| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | -2°C | -24°C | -12°C |
| February | -3°C | -29°C | -16°C |
| March | 0°C | -27°C | -10°C |
| April | 7°C | -16°C | -3°C |
| May | 14°C | -8°C | 5°C |
| June | 19°C | 2°C | 10°C |
| July | 23°C | 6°C | 14°C |
| August | 23°C | 4°C | 14°C |
| September | 20°C | -3°C | 8°C |
| October | 11°C | -4°C | 2°C |
| November | 5°C | -15°C | -4°C |
| December | -4°C | -25°C | -12°C |
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