| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 7°C | -10°C | 0°C |
| February | 7°C | -1°C | 4°C |
| March | 12°C | -1°C | 5°C |
| April | 16°C | -2°C | 7°C |
| May | 21°C | 5°C | 13°C |
| June | 25°C | 9°C | 15°C |
| July | 24°C | 0°C | 17°C |
| August | 24°C | 13°C | 18°C |
| September | 27°C | 9°C | 17°C |
| October | 18°C | 5°C | 11°C |
| November | 12°C | -5°C | 5°C |
| December | 8°C | -5°C | 3°C |
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