Climate almanac
Des Moines
Washington, United States · 47.40°, -122.32°
What is the weather like in Des Moines in September?
In September, Des Moines is typically 71°F (22°C) during the day and 55°F (13°C) at night. The month brings about 2.9 in (74 mm) of precipitation in total.
- Average high71°F (22°C)
- Average low55°F (13°C)
- Precipitation2.9 in (74 mm)
- Clear or mostly clear days9
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)