| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 6°C | -10°C | -1°C |
| February | 7°C | -7°C | 1°C |
| March | 9°C | -1°C | 4°C |
| April | 14°C | -1°C | 6°C |
| May | 20°C | 6°C | 13°C |
| June | 23°C | 6°C | 11°C |
| July | 22°C | 7°C | 14°C |
| August | 21°C | 9°C | 14°C |
| September | 24°C | 6°C | 13°C |
| October | 14°C | 1°C | 7°C |
| November | 10°C | -7°C | 2°C |
| December | 9°C | -6°C | 0°C |
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