United States · 1991–2020 normal

Vashon in
September.

Typical September weather in Vashon: 21.5°C by day, 11.7°C at night, 40 mm of rain over 6 wet days. These are measured 1991–2020 station normals, not a forecast.

Typical high21.5°C
Typical low11.7°C
Rain40 mm
Wet days6

Comfort score 83 this month (July leads the year at 95). Daylight is calculated as 12 h 30 from latitude 47.45°.

The evidence behind this page

One month,
from the same station.

Place identity
GeoNames 5814647
NOAA station
USW00024233 · SEATTLE TACOMA AP
Station distance
10.9 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.