United States · 1991–2020 normal
Romulus in
September.
Typical September weather in Romulus: 23.8°C by day, 13°C at night, 82 mm of rain over 7.5 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high23.8°C
Typical low13°C
Rain82 mm
Wet days7.5
Comfort score 85 this month, the highest of the year. Daylight is calculated as 12 h 26 from latitude 42.22°. Open-water sea temperature is 21.1°C (39 km from the place centre).
Event window
Warm sea in September
The nearest open-water NOAA OISST 1991–2020 cell averages 21.1°C in September. 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 5007531
- NOAA station
- USW00094847 · DETROIT METRO 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.