Finland · 1991–2020 normal
Alahärmä in
December.
Typical December weather in Alahärmä: -0.9°C by day, -7.1°C at night, 37 mm of rain over 8.9 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high-0.9°C
Typical low-7.1°C
Rain37 mm
Wet days8.9
Comfort score 5 this month (July leads the year at 76). Daylight is calculated as 4 h 39 from latitude 63.25°. Open-water sea temperature is 2.6°C (39 km from the place centre).
Event window
Long northern nights in December
At 63.2° the calculated mid-month daylight is 4 h 39. That darkness, not an aurora observation, is why this latitude is sought for northern or southern lights in December. Typical nights are -7.1°C.
Event window
Frost-level nights in December
The measured night-time normal is -7.1°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 661601
- NOAA station
- FIE00144407 · KAUHAVA LENTOKENTTA
- Station distance
- 17.2 km from the place centre
- Coverage
- Good coverage · 24 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.