Weather in San Bernardino: December
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Average day temperature: | 60.2°F |
| Average night temperature: | 45.3°F | |
 |
Number of sunny days: | 19 days |
| Day length: | 9.9 - 10.0 hours | |
 |
Number of rainy days: | 2 days |
| Precipitation totals: | 1.1 in. | |
| more information | ||
14 days
forecast
forecast
| San Bernardino |
weather in
January
January
| San Bernardino |
Air temperature in December, °F
Show year:
2023
2022
2021
The highest day temperature during December of 2023 was 72°F. At the same time the lowest night temperature was 37°F. Day and night temperature averages during December were 63.4°F and 45.4°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 San Bernardino in December is 1.1 in. Other months of the year show relatively similar values.
Wind speed in December, mph
The average wind speed value in December is 3.5 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: 6.4.
Best time for vacation in San Bernardino
San Bernardino on a weather map
Places in USA:
Name
°F
24 Hours Forecast
San Bernardino
Local time: 06:56
November 21, thursday
0900
59°F
SW
1 mph
1 mph
1200
75°F
NE
3 mph
3 mph
1500
77°F
NE
3 mph
3 mph
1800
68°F
S
1 mph
1 mph
2100
61°F
SW
2 mph
2 mph
November 22, friday
0000
55°F
SW
2 mph
2 mph
0300
55°F
SW
2 mph
2 mph
0600
55°F
W
2 mph
2 mph
