Is Riverside hot in December?
Days are typically mild at 20.4°C, while nights average 5.6°C.
United States · 1991–2020 normal
Riverside in
December.
Typical December weather in Riverside: 20.4°C by day, 5.6°C at night, 30 mm of rain over 3.4 wet days. These are measured 1991–2020 station normals, not a forecast.
Typical high20.4°C
Typical low5.6°C
Rain30 mm
Wet days3.4
In the year-round weather comparison, December scores 71 out of 100 (November leads the year at 87). Daylight is calculated as 9 h 54 from latitude 33.95°.
December at a glance
What is Riverside like in December?
Plain answers from the measured climate record—not a forecast or a promise about a particular trip.
Does it rain much?
The measured monthly average is 30 mm across about 3 wet days.
How much daylight is there?
There are about 9 h 54 between sunrise and sunset at mid-month, calculated from the place latitude.
Is December a good time to visit?
December ranks 9 of 12 in our weather comparison; November ranks first.
The evidence behind this page
One month,
from the same station.
- Place identity
- GeoNames 5387877
- NOAA station
- USC00047470 · RIVERSIDE FIRE STN 3
- Station distance
- 0.8 km from the place centre
- Coverage
- Good coverage · 23 usable years
- Important limit
- Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.
Next step
Choose your month.
Then plan the details.
The weather comparison for Riverside is based on climate evidence, not payments from travel companies. Flight, accommodation and activity links will be clearly labelled when they are added; there are no booking offers on this page today.
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