| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 1°C | -17°C | -9°C |
| February | 5°C | -14°C | -6°C |
| March | 6°C | -15°C | -1°C |
| April | 13°C | 0°C | 6°C |
| May | 22°C | 5°C | 10°C |
| June | 19°C | 9°C | 14°C |
| July | 25°C | 15°C | 19°C |
| August | 26°C | 14°C | 21°C |
| September | 24°C | 4°C | 18°C |
| October | 18°C | -6°C | 11°C |
| November | 12°C | -18°C | 0°C |
| December | 4°C | -23°C | -8°C |
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