Climate almanac
Cheyenne
Wyoming, United States · 41.14°, -104.82°
What is the weather like in Cheyenne in September?
In September, Cheyenne is typically 78°F (26°C) during the day and 50°F (10°C) at night. The month brings about 1.0 in (26 mm) of precipitation in total. Snowfall averages about 0.5 in (13 mm) over the month.
- Average high78°F (26°C)
- Average low50°F (10°C)
- Precipitation1.0 in (26 mm)
- Clear or mostly clear days19
- Snowfall0.5 in (13 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)