United States · 1991–2020 normal
Sun Valley in
December.
Typical December weather in Sun Valley: -0.6°C by day, -12.9°C at night, 68 mm of rain over 9 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high-0.6°C
Typical low-12.9°C
Rain68 mm
Wet days9
Comfort score 5 this month (August leads the year at 76). Daylight is calculated as 8 h 56 from latitude 43.70°.
Event window
Frost-level nights in December
The measured night-time normal is -12.9°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5609286
- NOAA station
- USC00104845 · KETCHUM RS
- Station distance
- 1.6 km from the place centre
- Coverage
- Strong coverage · 29 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.