United States · 1991–2020 normal
Portola Hills in
December.
Typical December weather in Portola Hills: 20.3°C by day, 8.3°C at night, 66 mm of rain over 4.2 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high20.3°C
Typical low8.3°C
Rain66 mm
Wet days4.2
Comfort score 70 this month (November leads the year at 91). Daylight is calculated as 9 h 56 from latitude 33.68°. Open-water sea temperature is 15.8°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.
From evidence to a booked trip
Know the month.
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