| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | -1°C | -30°C | -15°C |
| February | 8°C | -30°C | -12°C |
| March | 16°C | -18°C | -1°C |
| April | 24°C | -4°C | 12°C |
| May | 29°C | 3°C | 14°C |
| June | 31°C | 8°C | 20°C |
| July | 33°C | 12°C | 23°C |
| August | 32°C | 12°C | 22°C |
| September | 29°C | 5°C | 17°C |
| October | 22°C | -2°C | 10°C |
| November | 21°C | -18°C | -5°C |
| December | 6°C | -23°C | -12°C |
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