United States · 1991–2020 normal
Saint Charles in
December.
Typical December weather in Saint Charles: 1.9°C by day, -5.2°C at night, 54 mm of rain over 8.2 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high1.9°C
Typical low-5.2°C
Rain54 mm
Wet days8.2
Comfort score 5 this month (September leads the year at 84). Daylight is calculated as 8 h 59 from latitude 43.30°. Open-water sea temperature is 3.7°C (42 km from the place centre).
Event window
Frost-level nights in December
The measured night-time normal is -5.2°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5008102
- NOAA station
- USC00207222 · SAGINAW #3
- Station distance
- 19.7 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.