Climate almanac
Coatesville
Pennsylvania, United States · 39.98°, -75.82°
What is the weather like in Coatesville in September?
In September, Coatesville is typically 78°F (25°C) during the day and 62°F (16°C) at night. The month brings about 4.2 in (108 mm) of precipitation in total.
- Average high78°F (25°C)
- Average low62°F (16°C)
- Precipitation4.2 in (108 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)