| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 3°C | -11°C | -4°C |
| February | 7°C | -11°C | -5°C |
| March | 7°C | -9°C | -1°C |
| April | 15°C | -3°C | 6°C |
| May | 17°C | 1°C | 9°C |
| June | 20°C | 5°C | 13°C |
| July | 25°C | 11°C | 18°C |
| August | 24°C | 14°C | 19°C |
| September | 24°C | 10°C | 18°C |
| October | 18°C | 5°C | 12°C |
| November | 15°C | -4°C | 6°C |
| December | 9°C | -11°C | -2°C |
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