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| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 4°C | -24°C | -9°C |
| February | 4°C | -21°C | -5°C |
| March | 11°C | -14°C | -3°C |
| April | 12°C | -6°C | 2°C |
| May | 23°C | -2°C | 9°C |
| June | 25°C | 2°C | 14°C |
| July | 29°C | 9°C | 18°C |
| August | 29°C | 0°C | 17°C |
| September | 29°C | 3°C | 16°C |
| October | 19°C | -4°C | 8°C |
| November | 13°C | -11°C | 2°C |
| December | 6°C | -11°C | -1°C |
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