United States · 1991–2020 normal
Riverdale Park in
September.
Typical September weather in Riverdale Park: 27.5°C by day, 15.8°C at night, 109 mm of rain over 7.7 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high27.5°C
Typical low15.8°C
Rain109 mm
Wet days7.7
Comfort score 72 this month (May leads the year at 77). Daylight is calculated as 12 h 24 from latitude 38.96°.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 4366919
- NOAA station
- USC00186350 · NATL ARBORETUM DC
- Station distance
- 6.5 km from the place centre
- Coverage
- Strong coverage · 28 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.