Climate almanac
Mammoth Lakes
California, United States · 37.65°, -118.97°
What is the weather like in Mammoth Lakes in September?
In September, Mammoth Lakes is typically 70°F (21°C) during the day and 42°F (6°C) at night. The month brings about 0.5 in (13 mm) of precipitation in total. Snowfall averages about 0.2 in (5 mm) over the month.
- Average high70°F (21°C)
- Average low42°F (6°C)
- Precipitation0.5 in (13 mm)
- Clear or mostly clear days26
- Snowfall0.2 in (5 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)