Climate almanac
Hannibal
Missouri, United States · 39.71°, -91.36°
What is the weather like in Hannibal in September?
In September, Hannibal is typically 81°F (27°C) during the day and 61°F (16°C) at night. The month brings about 2.9 in (73 mm) of precipitation in total.
- Average high81°F (27°C)
- Average low61°F (16°C)
- Precipitation2.9 in (73 mm)
- Clear or mostly clear days16
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)