| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 12°C | -7°C | 2°C |
| February | 11°C | -3°C | 3°C |
| March | 17°C | -1°C | 8°C |
| April | 21°C | 4°C | 11°C |
| May | 26°C | 9°C | 17°C |
| June | 30°C | 17°C | 23°C |
| July | 31°C | 18°C | 25°C |
| August | 33°C | 16°C | 25°C |
| September | 37°C | 12°C | 21°C |
| October | 26°C | 7°C | 15°C |
| November | 18°C | -3°C | 8°C |
| December | 15°C | -2°C | 6°C |
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