Finland · 1991–2020 normal

Kärsämäki in
December.

Typical December weather in Kärsämäki: -2.9°C by day, -8.4°C at night, 40 mm of rain over 9.7 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high-2.9°C
Typical low-8.4°C
Rain40 mm
Wet days9.7

Comfort score 5 this month (July leads the year at 73). Daylight is calculated as 4 h 18 from latitude 63.97°.

Event window

Long northern nights in December

At 64.0° the calculated mid-month daylight is 4 h 18. That darkness, not an aurora observation, is why this latitude is sought for northern or southern lights in December. Typical nights are -8.4°C.

Event window

Frost-level nights in December

The measured night-time normal is -8.4°C, so frost is typical rather than exceptional this month.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 653880
NOAA station
FIE00145242 · HAAPAVESI MUSTIKKAMAKI
Station distance
25.5 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.