United States · 1991–2020 normal
Decatur in
December.
Typical December weather in Decatur: 3.4°C by day, -4.2°C at night, 66 mm of rain over 7.9 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high3.4°C
Typical low-4.2°C
Rain66 mm
Wet days7.9
Comfort score 5 this month (September leads the year at 82). Daylight is calculated as 9 h 15 from latitude 40.83°.
Event window
Frost-level nights in December
The measured night-time normal is -4.2°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4919564
- NOAA station
- USC00122096 · DECATUR 1 N
- Station distance
- 2 km from the place centre
- Coverage
- Good coverage · 16 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.