Climate almanac
Fairmont
West Virginia, United States · 39.49°, -80.14°
What is the weather like in Fairmont in September?
In September, Fairmont is typically 77°F (25°C) during the day and 59°F (15°C) at night. The month brings about 4.0 in (102 mm) of precipitation in total.
- Average high77°F (25°C)
- Average low59°F (15°C)
- Precipitation4.0 in (102 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)