| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 4°C | -12°C | -2°C |
| February | 8°C | -5°C | 2°C |
| March | 16°C | -1°C | 4°C |
| April | 17°C | -1°C | 6°C |
| May | 24°C | 3°C | 13°C |
| June | 26°C | 8°C | 15°C |
| July | 27°C | 13°C | 18°C |
| August | 26°C | 12°C | 18°C |
| September | 26°C | 9°C | 17°C |
| October | 18°C | 0°C | 9°C |
| November | 12°C | -4°C | 4°C |
| December | 7°C | -7°C | 1°C |
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