United States · 1991–2020 normal
Custer in
December.
Typical December weather in Custer: 2.7°C by day, -8.7°C at night, 9 mm of rain over 2.2 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high2.7°C
Typical low-8.7°C
Rain9 mm
Wet days2.2
Comfort score 5 this month (August leads the year at 80). Daylight is calculated as 8 h 56 from latitude 43.77°.
Event window
Frost-level nights in December
The measured night-time normal is -8.7°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5763910
- NOAA station
- USC00392087 · CUSTER
- Station distance
- 1.4 km from the place centre
- Coverage
- Strong coverage · 25 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.