World Resorts USA Riverside Weather

Riverside weather in December

Weather in Riverside: December

Average day temperature: 62.3°F
Average night temperature: 47.6°F
Number of sunny days: 19 days
Day length: 9.9 - 10.1 hours
Number of rainy days: 1 day
Precipitation totals: 0.9 in.

Air temperature in December, °F

Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
13
26
39
52
65
78
91
104
Day temperature   
Night temperature

The highest day temperature during December of 2024 was 78°F. At the same time the lowest night temperature was 42°F. Daily and nightly averages during December were 69.3°F and 49.6°F.

Sunny, partly cloudy and cloudy days
Sunny days
Partly cloudy days
Cloudy days
61%
19%
19%

Mostly all days in December are sunny but cloudy days are also possible.

Precipitation total in December, in.

jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.2
0.3
0.5
0.7
0.8
1.0
1.2
1.3

Precipitation total value in Riverside in December is 0.9 in. Other months of the year show relatively similar values.

Wind speed in December, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.8
1.7
2.5
3.4
4.2
5.0
5.9
3.8
3.8
4.0
4.3
4.5
4.7
4.9
4.6
4.6
4.0
3.9
3.3
3.8
3.8
4.0
4.3
4.5
4.7
4.9
4.6
4.6
4.0
3.9

The average wind speed value in December is 3.3 mph It makes December lest windy month of the year.

Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
2.3
4.5
6.8
9.1
11.4
13.6
15.9
8.4
9.9
11.3
12.3
13.2
13.3
12.1
10.8
7.7
7.6
7.4
6.7
8.4
9.9
11.3
12.3
13.2
13.3
12.1
10.8
7.7
7.6
7.4

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: 6.7.

Best time for vacation in Riverside

Sunniest months:
July 30 days
June 28 days
August 28 days
Warmest months:
July 95.3 °F
August 94.8 °F
September 91.1 °F
Coldest months:
January 60.8 °F
December 62.3 °F
March 62.9 °F
Rainiest months:
January 2 days
March 2 days
April 1 day
Windiest months:
May 4.9 mph
June 4.7 mph
March 4.6 mph

Riverside on a weather map

Leaflet | Tiles © Esri
Places in USA:
Name
°F
+43°F
+59°F
+73°F
+73°F
+55°F
+61°F
+77°F
+45°F
+82°F
+54°F
+48°F
+86°F
+88°F
+75°F
+46°F
24 Hours Forecast
Riverside
Local time: 09:39
April 05, saturday
1200
72°F
S
16 mph
1500
77°F
S
15 mph
1800
73°F
S
13 mph
2100
61°F
S
4 mph
April 06, sunday
0000
52°F
SW
3 mph
0300
48°F
SW
4 mph
0600
50°F
SW
4 mph
0900
63°F
N
1 mph
Units of measurement: °C / °F