Climate almanac
Plainfield
New Jersey, United States · 40.63°, -74.41°
What is the weather like in Plainfield in September?
In September, Plainfield is typically 77°F (25°C) during the day and 60°F (16°C) at night. The month brings about 4.0 in (102 mm) of precipitation in total.
- Average high77°F (25°C)
- Average low60°F (16°C)
- Precipitation4.0 in (102 mm)
- Clear or mostly clear days10
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)