Climate almanac
Dorchester
Ontario, Canada · 42.98°, -81.07°
What is the weather like in Dorchester in September?
In September, Dorchester is typically 72°F (22°C) during the day and 55°F (13°C) at night. The month brings about 2.6 in (66 mm) of precipitation in total.
- Average high72°F (22°C)
- Average low55°F (13°C)
- Precipitation2.6 in (66 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)