| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 5°C | -15°C | -3°C |
| February | 7°C | -7°C | 1°C |
| March | 15°C | -5°C | 3°C |
| April | 19°C | -6°C | 5°C |
| May | 24°C | 2°C | 13°C |
| June | 26°C | 5°C | 14°C |
| July | 25°C | 7°C | 16°C |
| August | 27°C | 9°C | 16°C |
| September | 29°C | 6°C | 15°C |
| October | 17°C | 0°C | 7°C |
| November | 9°C | -9°C | 1°C |
| December | 7°C | -12°C | -2°C |
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