United States · 1991–2020 normal
Portola Hills in
January.
Typical January weather in Portola Hills: 21.3°C by day, 8.5°C at night, 61 mm of rain over 4 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high21.3°C
Typical low8.5°C
Rain61 mm
Wet days4
Comfort score 75 this month (November leads the year at 91). Daylight is calculated as 10 h 08 from latitude 33.68°. Open-water sea temperature is 15.1°C (23 km from the place centre).
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5384452
- NOAA station
- USC00044303 · IRVINE RCH
- Station distance
- 9.6 km from the place centre
- Coverage
- Good coverage · 16 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.