Climate almanac
Lancaster
Massachusetts, United States · 42.46°, -71.67°
What is the weather like in Lancaster in September?
In September, Lancaster is typically 73°F (23°C) during the day and 56°F (14°C) at night. The month brings about 3.8 in (98 mm) of precipitation in total.
- Average high73°F (23°C)
- Average low56°F (14°C)
- Precipitation3.8 in (98 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)