United States · 1991–2020 normal
Santa Rosa in
January.
Typical January weather in Santa Rosa: 13.2°C by day, -3.9°C at night, 11 mm of rain over 2.1 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high13.2°C
Typical low-3.9°C
Rain11 mm
Wet days2.1
Comfort score 30 this month (October leads the year at 82). Daylight is calculated as 10 h 03 from latitude 34.94°.
Event window
Frost-level nights in January
The measured night-time normal is -3.9°C, so frost is typical rather than exceptional this month.
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 · 21 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.