Finland · 1991–2020 normal
Sumiainen in
January.
Typical January weather in Sumiainen: -4.3°C by day, -10.9°C at night, 43 mm of rain over 11 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high-4.3°C
Typical low-10.9°C
Rain43 mm
Wet days11
Comfort score 5 this month (July leads the year at 74). Daylight is calculated as 5 h 51 from latitude 62.66°.
Event window
Long northern nights in January
At 62.7° the calculated mid-month daylight is 5 h 51. That darkness, not an aurora observation, is why this latitude is sought for northern or southern lights in January. Typical nights are -10.9°C.
Event window
Frost-level nights in January
The measured night-time normal is -10.9°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 635826
- NOAA station
- FI000002401 · JYVASKYLA LENTOASEMA
- Station distance
- 34.1 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.