Climate almanac
Stillwater
Oklahoma, United States · 36.12°, -97.06°
What is the weather like in Stillwater in September?
In September, Stillwater is typically 87°F (31°C) during the day and 66°F (19°C) at night. The month brings about 2.9 in (74 mm) of precipitation in total.
- Average high87°F (31°C)
- Average low66°F (19°C)
- Precipitation2.9 in (74 mm)
- Clear or mostly clear days17
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)