United States · 1991–2020 normal

Washington in
September.

Typical September weather in Washington: 29°C by day, 17.2°C at night, 93 mm of rain over 5.9 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high29°C
Typical low17.2°C
Rain93 mm
Wet days5.9

Comfort score 69 this month (October leads the year at 85). Daylight is calculated as 12 h 20 from latitude 33.74°.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 4229546
NOAA station
USC00099157 · WASHINGTON 2 ESE
Station distance
3.3 km from the place centre
Coverage
Strong coverage · 29 usable years
Important limit
Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.