| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 8°C | -9°C | 0°C |
| February | 11°C | -2°C | 4°C |
| March | 19°C | 0°C | 6°C |
| April | 21°C | 0°C | 9°C |
| May | 26°C | 4°C | 14°C |
| June | 28°C | 8°C | 16°C |
| July | 29°C | 10°C | 19°C |
| August | 31°C | 12°C | 19°C |
| September | 29°C | 10°C | 19°C |
| October | 25°C | 4°C | 11°C |
| November | 14°C | -5°C | 5°C |
| December | 10°C | -7°C | 2°C |
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