| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 8°C | -6°C | 1°C |
| February | 8°C | -3°C | 2°C |
| March | 7°C | 1°C | 4°C |
| April | 11°C | 0°C | 5°C |
| May | 21°C | 7°C | 11°C |
| June | 17°C | 8°C | 11°C |
| July | 18°C | 10°C | 14°C |
| August | 18°C | 11°C | 14°C |
| September | 18°C | 10°C | 13°C |
| October | 13°C | 3°C | 8°C |
| November | 10°C | -3°C | 4°C |
| December | 8°C | -3°C | 1°C |
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