Climate almanac
Hillsborough
New Jersey, United States · 40.48°, -74.63°
What is the weather like in Hillsborough in September?
In September, Hillsborough is typically 78°F (25°C) during the day and 61°F (16°C) at night. The month brings about 3.8 in (96 mm) of precipitation in total.
- Average high78°F (25°C)
- Average low61°F (16°C)
- Precipitation3.8 in (96 mm)
- Clear or mostly clear days10
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)