| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 15°C | -9°C | 2°C |
| February | 13°C | -6°C | 3°C |
| March | 17°C | -5°C | 4°C |
| April | 24°C | -4°C | 9°C |
| May | 28°C | -3°C | 13°C |
| June | 35°C | 5°C | 21°C |
| July | 39°C | 11°C | 25°C |
| August | 35°C | 0°C | 21°C |
| September | 33°C | 4°C | 18°C |
| October | 30°C | -4°C | 12°C |
| November | 23°C | -8°C | 6°C |
| December | 18°C | -11°C | 4°C |
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