Sweden · 1991–2020 normal
Ersmark in
December.
Typical December weather in Ersmark: 0.8°C by day, -3°C at night, 67 mm of rain over 13.5 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high0.8°C
Typical low-3°C
Rain67 mm
Wet days13.5
Comfort score 5 this month (July leads the year at 78). Daylight is calculated as 4 h 20 from latitude 63.88°. Open-water sea temperature is 2.6°C (27 km from the place centre).
Event window
Long northern nights in December
At 63.9° the calculated mid-month daylight is 4 h 20. That darkness, not an aurora observation, is why this latitude is sought for northern or southern lights in December. Typical nights are -3°C.
Event window
Frost-level nights in December
The measured night-time normal is -3°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 606249
- NOAA station
- SWE00140178 · HOLMON A
- Station distance
- 28.3 km from the place centre
- Coverage
- Good coverage · 16 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.