United States · 1991–2020 normal
Decatur in
January.
Typical January weather in Decatur: 0°C by day, -8.7°C at night, 78 mm of rain over 12.3 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high0°C
Typical low-8.7°C
Rain78 mm
Wet days12.3
Comfort score 5 this month (September leads the year at 79). Daylight is calculated as 9 h 25 from latitude 42.11°. Open-water sea temperature is 4.1°C (44 km from the place centre).
Event window
Frost-level nights in January
The measured night-time normal is -8.7°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4990524
- NOAA station
- USC00202250 · DOWAGIAC 1 W
- Station distance
- 18.8 km from the place centre
- Coverage
- Strong coverage · 29 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.