Climate almanac
Monrovia
California, United States · 34.15°, -118.00°
What is the weather like in Monrovia in December?
In December, Monrovia is typically 62°F (17°C) during the day and 44°F (7°C) at night. The month brings about 2.9 in (74 mm) of precipitation in total. Snowfall averages about 0.9 in (22 mm) over the month.
- Average high62°F (17°C)
- Average low44°F (7°C)
- Precipitation2.9 in (74 mm)
- Clear or mostly clear days15
- Snowfall0.9 in (22 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)