Sweden · 1991–2020 normal
Bollstabruk in
December.
Typical December weather in Bollstabruk: -2.6°C by day, -9.5°C at night, 44 mm of rain over 9.7 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high-2.6°C
Typical low-9.5°C
Rain44 mm
Wet days9.7
Comfort score 5 this month (July leads the year at 70). Daylight is calculated as 4 h 47 from latitude 63.00°. Open-water sea temperature is 3.4°C (38 km from the place centre).
Event window
Long northern nights in December
At 63.0° the calculated mid-month daylight is 4 h 47. That darkness, not an aurora observation, is why this latitude is sought for northern or southern lights in December. Typical nights are -9.5°C.
Event window
Frost-level nights in December
The measured night-time normal is -9.5°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 2720670
- NOAA station
- SWE00139974 · LANNAS
- Station distance
- 19.2 km from the place centre
- Coverage
- Strong coverage · 26 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.