United States · 1991–2020 normal
Santa Rosa in
September.
Typical September weather in Santa Rosa: 29.6°C by day, 11.5°C at night, 47 mm of rain over 4.6 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high29.6°C
Typical low11.5°C
Rain47 mm
Wet days4.6
Comfort score 72 this month (October leads the year at 82). Daylight is calculated as 12 h 21 from latitude 34.94°.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5490338
- NOAA station
- USC00298107 · SANTA ROSA
- Station distance
- 4.1 km from the place centre
- Coverage
- Good coverage · 19 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.