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San Bernardino weather in January

Weather in San Bernardino: January

Average day temperature: 61.5°F
Average night temperature: 45.1°F
Number of sunny days: 21 days
Day length: 9.9 - 10.5 hours
Number of rainy days: 2 days
Precipitation totals: 0.8 in.

Air temperature in January, °F

Show year:
2026
2025
2024

The highest day temperature during January of 2026 was 81°F. At the same time the lowest night temperature was 43°F. Daily and nightly averages during January were 69.1°F and 50.4°F.

Sunny, partly cloudy and cloudy days

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

Precipitation total in January, in.

Precipitation total value in San Bernardino in January is 0.8 in. Other months of the year show relatively similar values.

Wind speed in January, mph

The average wind speed value in January is 4.2 mph

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 January is: 7.6.

Best time for vacation in San Bernardino

Sunniest months:
July 30 days
August 29 days
June 28 days
Warmest months:
August 94.6 °F
July 94.3 °F
September 90.5 °F
Coldest months:
January 61.5 °F
December 63.7 °F
February 64.2 °F
Rainiest months:
January 2 days
March 2 days
February 2 days
Windiest months:
April 4.8 mph
May 4.8 mph
March 4.7 mph

San Bernardino on a weather map

San Bernardino
+57°F
S 2 mph
Feels like: +57°F
Precip.: 0%
Places in USA:
Name
°F
+72°F
+75°F
+75°F
+59°F
+64°F
+81°F
+81°F
+70°F
+75°F
+64°F
+54°F
+73°F
+73°F
+77°F
+50°F
24 Hours Forecast
San Bernardino
Local time: 03:11
May 20, wednesday
0600
61°F
S
2 mph
0900
75°F
E
2 mph
1200
84°F
E
7 mph
1500
86°F
E
12 mph
1800
81°F
E
10 mph
2100
66°F
N
2 mph
May 21, thursday
0000
61°F
N
2 mph
0300
57°F
N
1 mph
Units of measurement: °C / °F