Climate almanac
Adelphi
Maryland, United States · 39.00°, -76.97°
What is the weather like in Adelphi in September?
In September, Adelphi is typically 80°F (27°C) during the day and 63°F (17°C) at night. The month brings about 3.9 in (100 mm) of precipitation in total.
- Average high80°F (27°C)
- Average low63°F (17°C)
- Precipitation3.9 in (100 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)