| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 17°C | -13°C | 1°C |
| February | 15°C | -8°C | 3°C |
| March | 18°C | -11°C | 2°C |
| April | 22°C | -8°C | 5°C |
| May | 20°C | -5°C | 7°C |
| June | 27°C | 0°C | 12°C |
| July | 29°C | 5°C | 17°C |
| August | 28°C | 5°C | 17°C |
| September | 26°C | -1°C | 12°C |
| October | 25°C | -2°C | 9°C |
| November | 15°C | -7°C | 2°C |
| December | 11°C | -9°C | 1°C |
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