Finland · 1991–2020 normal
Ruukki in
January.
Typical January weather in Ruukki: -4.7°C by day, -11.9°C at night, 36 mm of rain over 8.8 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high-4.7°C
Typical low-11.9°C
Rain36 mm
Wet days8.8
Comfort score 5 this month (July leads the year at 71). Daylight is calculated as 5 h 05 from latitude 64.67°. Open-water sea temperature is 0.1°C (26 km from the place centre).
Event window
Long northern nights in January
At 64.7° the calculated mid-month daylight is 5 h 05. That darkness, not an aurora observation, is why this latitude is sought for northern or southern lights in January. Typical nights are -11.9°C.
Event window
Frost-level nights in January
The measured night-time normal is -11.9°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 638622
- NOAA station
- FIE00145627 · SIIKAJOKI REVONLAHTI
- Station distance
- 1.9 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.