United States · 1991–2020 normal
Rosemont in
January.
Typical January weather in Rosemont: -0.4°C by day, -8.2°C at night, 50 mm of rain over 7.5 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high-0.4°C
Typical low-8.2°C
Rain50 mm
Wet days7.5
Comfort score 5 this month (September leads the year at 87). Daylight is calculated as 9 h 26 from latitude 42.00°. Open-water sea temperature is 3.3°C (25 km from the place centre).
Event window
Frost-level nights in January
The measured night-time normal is -8.2°C, so frost is typical rather than exceptional this month.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4908179
- NOAA station
- USW00094846 · CHICAGO OHARE INTL AP
- Station distance
- 5.5 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.