United States · 1991–2020 normal
Cahokia in
December.
Typical December weather in Cahokia: 6.6°C by day, -3.1°C at night, 63 mm of rain over 6.8 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high6.6°C
Typical low-3.1°C
Rain63 mm
Wet days6.8
Comfort score 5 this month (September leads the year at 80). Daylight is calculated as 9 h 29 from latitude 38.57°.
Event window
Frost-level nights in December
The measured night-time normal is -3.1°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4234969
- NOAA station
- USC00111160 · CAHOKIA
- Station distance
- 0.6 km from the place centre
- Coverage
- Good coverage · 19 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.