Climate almanac
Union City
California, United States · 37.60°, -122.02°
What is the weather like in Union City in March?
In March, Union City is typically 63°F (17°C) during the day and 47°F (8°C) at night. The month brings about 3.8 in (97 mm) of precipitation in total.
- Average high63°F (17°C)
- Average low47°F (8°C)
- Precipitation3.8 in (97 mm)
- Clear or mostly clear days9
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)