United States · 1991–2020 normal
Dillon in
December.
Typical December weather in Dillon: 0.8°C by day, -10°C at night, 12 mm of rain over 2.7 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high0.8°C
Typical low-10°C
Rain12 mm
Wet days2.7
Comfort score 5 this month (June leads the year at 78). Daylight is calculated as 8 h 45 from latitude 45.22°.
Event window
Frost-level nights in December
The measured night-time normal is -10°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5648657
- NOAA station
- USC00242409 · DILLON U OF MONTANA WESTERN
- Station distance
- 0.8 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.