United States · 1991–2020 normal
Posen in
December.
Typical December weather in Posen: 3°C by day, -4°C at night, 59 mm of rain over 8 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high3°C
Typical low-4°C
Rain59 mm
Wet days8
Comfort score 5 this month (September leads the year at 87). Daylight is calculated as 9 h 10 from latitude 41.63°. Open-water sea temperature is 5.8°C (26 km from the place centre).
Event window
Frost-level nights in December
The measured night-time normal is -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 4906527
- NOAA station
- USC00111577 · CHICAGO MIDWAY AP 3SW
- Station distance
- 14.2 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.