United States · 1991–2020 normal
Williamson in
December.
Typical December weather in Williamson: 10.1°C by day, -1°C at night, 119 mm of rain over 11.1 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high10.1°C
Typical low-1°C
Rain119 mm
Wet days11.1
Comfort score 6 this month (September leads the year at 74). Daylight is calculated as 9 h 34 from latitude 37.67°.
Event window
Frost-level nights in December
The measured night-time normal is -1°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4827333
- NOAA station
- USC00469610 · WILLIAMSON
- Station distance
- 1.1 km from the place centre
- Coverage
- Good coverage · 22 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.