Finland · 1991–2020 normal

Heinola in
January.

Typical January weather in Heinola: -3.3°C by day, -8.9°C at night, 45 mm of rain over 11.2 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high-3.3°C
Typical low-8.9°C
Rain45 mm
Wet days11.2

Comfort score 5 this month (July leads the year at 81). Daylight is calculated as 6 h 19 from latitude 61.21°.

Event window

Long northern nights in January

At 61.2° the calculated mid-month daylight is 6 h 19. That darkness, not an aurora observation, is why this latitude is sought for northern or southern lights in January. Typical nights are -8.9°C.

Event window

Frost-level nights in January

The measured night-time normal is -8.9°C, so frost is typical rather than exceptional this month.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 658288
NOAA station
FIE00143066 · HEINOLA ASEMANTAUS
Station distance
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.