Climate almanac
Alpena
Michigan, United States · 45.06°, -83.43°
What is the weather like in Alpena in September?
In September, Alpena is typically 69°F (21°C) during the day and 55°F (13°C) at night. The month brings about 2.5 in (64 mm) of precipitation in total.
- Average high69°F (21°C)
- Average low55°F (13°C)
- Precipitation2.5 in (64 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)