| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 2°C | -25°C | -13°C |
| February | 2°C | -28°C | -10°C |
| March | 3°C | -12°C | -4°C |
| April | 2°C | -14°C | -3°C |
| May | 19°C | -6°C | 3°C |
| June | 21°C | 4°C | 10°C |
| July | 19°C | 9°C | 12°C |
| August | 21°C | 10°C | 13°C |
| September | 21°C | 6°C | 13°C |
| October | 11°C | -6°C | 2°C |
| November | 3°C | -10°C | -3°C |
| December | 1°C | -18°C | -10°C |
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