| Month | Min Temp | Max Temp |
|---|---|---|
| January | -2.1°C (28.3°F) | 3.5°C (38.2°F) |
| February | -1.9°C (28.7°F) | 4.0°C (39.3°F) |
| March | 1.3°C (34.3°F) | 8.5°C (47.3°F) |
| April | 5.3°C (41.6°F) | 13.3°C (56.0°F) |
| May | 8.3°C (47.0°F) | 16.4°C (61.6°F) |
| June | 12.7°C (54.9°F) | 21.3°C (70.4°F) |
| July | 14.7°C (58.5°F) | 23.8°C (74.8°F) |
| August | 14.6°C (58.2°F) | 24.1°C (75.4°F) |
| September | 11.1°C (51.9°F) | 19.2°C (66.6°F) |
| October | 7.2°C (44.9°F) | 14.3°C (57.7°F) |
| November | 3.2°C (37.8°F) | 8.8°C (47.9°F) |
| December | -0.8°C (30.6°F) | 5.1°C (41.1°F) |