| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 4°C | -12°C | -3°C |
| February | 13°C | -7°C | 1°C |
| March | 21°C | -2°C | 9°C |
| April | 28°C | 6°C | 17°C |
| May | 34°C | 12°C | 22°C |
| June | 39°C | 16°C | 27°C |
| July | 42°C | 17°C | 28°C |
| August | 34°C | 18°C | 26°C |
| September | 32°C | 13°C | 22°C |
| October | 27°C | 7°C | 17°C |
| November | 24°C | -8°C | 5°C |
| December | 13°C | -16°C | -4°C |
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