Climate almanac
Duncan
Oklahoma, United States · 34.50°, -97.96°
What is the weather like in Duncan in December?
In December, Duncan is typically 58°F (14°C) during the day and 37°F (3°C) at night. The month brings about 1.4 in (37 mm) of precipitation in total. Snowfall averages about 0.5 in (14 mm) over the month.
- Average high58°F (14°C)
- Average low37°F (3°C)
- Precipitation1.4 in (37 mm)
- Clear or mostly clear days13
- Snowfall0.5 in (14 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)