United States · 1991–2020 normal
Helena in
December.
Typical December weather in Helena: 12.1°C by day, 1.2°C at night, 127 mm of rain over 7 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high12.1°C
Typical low1.2°C
Rain127 mm
Wet days7
Comfort score 19 this month (October leads the year at 82). Daylight is calculated as 9 h 51 from latitude 34.53°.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4114272
- NOAA station
- USC00033242 · HELENA
- Station distance
- 1 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.