| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 5°C | -23°C | -4°C |
| February | 20°C | -8°C | 3°C |
| March | 21°C | -7°C | 4°C |
| April | 23°C | -3°C | 9°C |
| May | 28°C | 5°C | 16°C |
| June | 31°C | 7°C | 19°C |
| July | 30°C | 7°C | 21°C |
| August | 34°C | 8°C | 20°C |
| September | 35°C | 5°C | 19°C |
| October | 32°C | -1°C | 12°C |
| November | 18°C | -7°C | 4°C |
| December | 13°C | -4°C | 3°C |
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