Climate almanac
Corvallis
Oregon, United States · 44.56°, -123.26°
What is the weather like in Corvallis in September?
In September, Corvallis is typically 78°F (26°C) during the day and 52°F (11°C) at night. The month brings about 1.8 in (45 mm) of precipitation in total.
- Average high78°F (26°C)
- Average low52°F (11°C)
- Precipitation1.8 in (45 mm)
- Clear or mostly clear days14
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)