Climate almanac
Alum Rock
California, United States · 37.37°, -121.83°
What is the weather like in Alum Rock in May?
In May, Alum Rock is typically 73°F (23°C) during the day and 50°F (10°C) at night. The month brings about 0.7 in (18 mm) of precipitation in total.
- Average high73°F (23°C)
- Average low50°F (10°C)
- Precipitation0.7 in (18 mm)
- Clear or mostly clear days19
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)