Climate almanac
King of Prussia
Pennsylvania, United States · 40.09°, -75.40°
What is the weather like in King of Prussia in September?
In September, King of Prussia is typically 78°F (26°C) during the day and 62°F (17°C) at night. The month brings about 4.1 in (104 mm) of precipitation in total.
- Average high78°F (26°C)
- Average low62°F (17°C)
- Precipitation4.1 in (104 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)