United States · 1991–2020 normal
Roselle in
August.
Typical August weather in Roselle: 29.1°C by day, 15°C at night, 120 mm of rain over 7.8 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high29.1°C
Typical low15°C
Rain120 mm
Wet days7.8
Comfort score 67 this month (September leads the year at 77). Daylight is calculated as 13 h 52 from latitude 41.98°. Open-water sea temperature is 22.5°C (40 km from the place centre).
Event window
Warm sea in August
The nearest open-water NOAA OISST 1991–2020 cell averages 22.5°C in August. A sheltered bay can run warmer than that open-water cell.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4908173
- NOAA station
- USC00118324 · STREAMWOOD
- Station distance
- 9.3 km from the place centre
- Coverage
- Good coverage · 18 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.