| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 5°C | -16°C | -4°C |
| February | 6°C | -7°C | 0°C |
| March | 12°C | -4°C | 3°C |
| April | 15°C | -4°C | 4°C |
| May | 23°C | 0°C | 13°C |
| June | 27°C | 7°C | 16°C |
| July | 25°C | 9°C | 18°C |
| August | 25°C | 11°C | 18°C |
| September | 26°C | 7°C | 15°C |
| October | 17°C | -1°C | 7°C |
| November | 9°C | -7°C | 2°C |
| December | 7°C | -13°C | -3°C |
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