| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 6°C | -11°C | -2°C |
| February | 14°C | -7°C | 2°C |
| March | 23°C | -4°C | 10°C |
| April | 31°C | 8°C | 18°C |
| May | 37°C | 13°C | 23°C |
| June | 43°C | 18°C | 30°C |
| July | 42°C | 16°C | 29°C |
| August | 38°C | 19°C | 27°C |
| September | 34°C | 14°C | 24°C |
| October | 27°C | 8°C | 19°C |
| November | 26°C | -6°C | 6°C |
| December | 12°C | -18°C | -3°C |
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