United States · 1991–2020 normal
Dayton in
September.
Typical September weather in Dayton: 21.8°C by day, 7.9°C at night, 101 mm of rain over 7.4 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high21.8°C
Typical low7.9°C
Rain101 mm
Wet days7.4
Comfort score 67 this month (August leads the year at 75). Daylight is calculated as 12 h 27 from latitude 43.55°. Open-water sea temperature is 16.0°C (25 km from the place centre).
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 6545140
- NOAA station
- USC00173862 · HOLLIS
- Station distance
- 13.5 km from the place centre
- Coverage
- Strong coverage · 27 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.