Climate almanac
Gillette
Wyoming, United States · 44.29°, -105.50°
What is the weather like in Gillette in September?
In September, Gillette is typically 77°F (25°C) during the day and 51°F (10°C) at night. The month brings about 1.8 in (46 mm) of precipitation in total. Snowfall averages about 0.3 in (8 mm) over the month.
- Average high77°F (25°C)
- Average low51°F (10°C)
- Precipitation1.8 in (46 mm)
- Clear or mostly clear days18
- Snowfall0.3 in (8 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)