| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 13°C | -14°C | -1°C |
| February | 13°C | -7°C | 2°C |
| March | 16°C | -8°C | 5°C |
| April | 23°C | -1°C | 9°C |
| May | 27°C | 1°C | 11°C |
| June | 35°C | 3°C | 21°C |
| July | 38°C | 0°C | 24°C |
| August | 37°C | 10°C | 24°C |
| September | 33°C | 2°C | 19°C |
| October | 26°C | -7°C | 11°C |
| November | 19°C | -9°C | 5°C |
| December | 11°C | -6°C | 2°C |
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