| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 4°C | -16°C | -4°C |
| February | 10°C | -5°C | 2°C |
| March | 21°C | -3°C | 4°C |
| April | 24°C | -3°C | 7°C |
| May | 27°C | -1°C | 14°C |
| June | 29°C | 6°C | 15°C |
| July | 29°C | 9°C | 18°C |
| August | 29°C | 10°C | 18°C |
| September | 26°C | 8°C | 17°C |
| October | 22°C | -1°C | 8°C |
| November | 11°C | -7°C | 2°C |
| December | 6°C | -10°C | -1°C |
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