United States · 1991–2020 normal
Rapid City in
December.
Typical December weather in Rapid City: -0.6°C by day, -7.5°C at night, 54 mm of rain over 12.1 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high-0.6°C
Typical low-7.5°C
Rain54 mm
Wet days12.1
Comfort score 5 this month (August leads the year at 81). Daylight is calculated as 8 h 48 from latitude 44.83°. Open-water sea temperature is 5.7°C (27 km from the place centre).
Event window
Frost-level nights in December
The measured night-time normal is -7.5°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5006776
- NOAA station
- USC00204257 · KALKASKA
- Station distance
- 14.7 km from the place centre
- Coverage
- Strong coverage · 30 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.