Weather in Riverside: December
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Average day temperature: | 64.3°F |
| Average night temperature: | 48.4°F | |
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Number of sunny days: | 20 days |
| Day length: | 9.9 - 10.1 hours | |
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Number of rainy days: | 1 day |
| Precipitation totals: | 0.8 in. | |
| more information | ||
14 days
forecast
forecast
| Riverside |
weather in
January
January
| Riverside |
Air temperature in December, °F
Show year:
2025
2024
2023
The highest day temperature during December of 2025 was 87°F. At the same time the lowest night temperature was 46°F. Daily and nightly averages during December were 74.0°F and 52.6°F.
Sunny, partly cloudy and cloudy days
Mostly all days in December are sunny but cloudy days are also possible.
Precipitation total in December, in.
Precipitation total value in Riverside in December is 0.8 in. Other months of the year show relatively similar values.
Wind speed in December, mph
The average wind speed value in December is 3.2 mph It makes December lest windy month of the year.
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 7.2.
Best time for vacation in Riverside
Riverside on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Riverside
Local time: 22:49
December 29, monday
0000
52°F
SW
6 mph
6 mph
0300
52°F
SW
7 mph
7 mph
0600
45°F
SW
8 mph
8 mph
0900
46°F
SW
7 mph
7 mph
1200
63°F
S
9 mph
9 mph
1500
66°F
SW
11 mph
11 mph
1800
57°F
SW
8 mph
8 mph
2100
50°F
SW
5 mph
5 mph
