| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 9°C | -12°C | -2°C |
| February | 18°C | -12°C | 0°C |
| March | 17°C | -13°C | 3°C |
| April | 21°C | -4°C | 8°C |
| May | 29°C | 5°C | 15°C |
| June | 32°C | 7°C | 19°C |
| July | 31°C | 10°C | 21°C |
| August | 31°C | 8°C | 19°C |
| September | 33°C | 4°C | 18°C |
| October | 31°C | 1°C | 13°C |
| November | 14°C | -5°C | 4°C |
| December | 11°C | -5°C | 3°C |
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