| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 7°C | -5°C | 1°C |
| February | 15°C | -5°C | 1°C |
| March | 12°C | -5°C | 2°C |
| April | 20°C | 1°C | 10°C |
| May | 23°C | 6°C | 13°C |
| June | 27°C | 10°C | 18°C |
| July | 30°C | 15°C | 22°C |
| August | 32°C | 17°C | 24°C |
| September | 30°C | 12°C | 21°C |
| October | 21°C | 6°C | 13°C |
| November | 21°C | -2°C | 8°C |
| December | 14°C | -5°C | 2°C |
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