| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 9°C | -14°C | -1°C |
| February | 12°C | -13°C | 0°C |
| March | 16°C | -7°C | 3°C |
| April | 21°C | -5°C | 8°C |
| May | 25°C | -1°C | 11°C |
| June | 31°C | 2°C | 20°C |
| July | 36°C | 0°C | 23°C |
| August | 35°C | 0°C | 21°C |
| September | 30°C | 0°C | 16°C |
| October | 26°C | -9°C | 10°C |
| November | 18°C | -12°C | 3°C |
| December | 10°C | -10°C | 1°C |
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