Climate almanac
San Tan Valley
Arizona, United States · 33.19°, -111.53°
What is the weather like in San Tan Valley in December?
In December, San Tan Valley is typically 68°F (20°C) during the day and 45°F (7°C) at night. The month brings about 1.2 in (30 mm) of precipitation in total.
- Average high68°F (20°C)
- Average low45°F (7°C)
- Precipitation1.2 in (30 mm)
- Clear or mostly clear days17
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)