San Bernardino County (San Bernardino)
January
Weather in San Bernardino County, California for January 2027
Your guide to San Bernardino County weather in January - trends and predictions
In general, the average temperature in San Bernardino County at the beginning of January is 14.7 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 16.7 °F by the end of January.
San Bernardino County experiences moderate rainfall in January, with an average of 7 rainy days and a total precipitation of 71.9 mm.
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Temperatures
Rain 🌧️
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24
Dry days
7
Rainy days
0
Snow days
15°/6°
Temperatures
11 km/h
Avg max wind
43 %
Avg humidity
San Bernardino County Weather January
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Temperatures trend during January in San Bernardino County
See the weather trend as well as the moving average line
January weather in San Bernardino County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jan. 1 |  Partly cloudy | 16° /8° | 93.7 mm | 3 | |
| Jan. 2 |  Overcast | 18° /8° | 5.2 mm | 3 | |
| Jan. 3 |  Moderate rain | 14° /9° | 6.3 mm | 2 | |
| Jan. 4 | Partly cloudy | 13° /5° | 25.4 mm | 3 | |
| Jan. 5 | Partly cloudy | 14° /5° | 12.9 mm | 3 | |
| Jan. 6 |  Sunny | 16° /5° | 0 mm | 3 | |
| Jan. 7 |  Patchy rain possible | 12° /4° | 0.7 mm | 2 | |
| Jan. 8 | Partly cloudy | 12° /3° | 0 mm | 3 | |
| Jan. 9 | Sunny | 15° /4° | 0 mm | 4 | |
| Jan. 10 | Sunny | 16° /2° | 0 mm | 3 | |
| Jan. 11 | Sunny | 15° /5° | 0.1 mm | 3 | |
| Jan. 12 | Sunny | 16° /4° | 0 mm | 3 | |
| Jan. 13 | Sunny | 17° /5° | 0 mm | 3 | |
| Jan. 14 | Sunny | 18° /5° | 0 mm | 3 | |
| Jan. 15 | Sunny | 19° /7° | 0 mm | 3 | |
| Jan. 16 | Sunny | 20° /8° | 0 mm | 4 | |
| Jan. 17 | Partly cloudy | 16° /6° | 0 mm | 3 | |
| Jan. 18 | Sunny | 16° /4° | 0 mm | 5 | |
| Jan. 19 | Sunny | 21° /7° | 0 mm | 3 | |
| Jan. 20 | Sunny | 17° /7° | 1.8 mm | 3 | |
| Jan. 21 | Overcast | 15° /6° | 3.4 mm | 2 | |
| Jan. 22 | Moderate rain | 15° /7° | 7.3 mm | 3 | |
| Jan. 23 | Patchy rain possible | 15° /7° | 0 mm | 3 | |
| Jan. 24 | Overcast | 16° /5° | 0 mm | 3 | |
| Jan. 25 | Overcast | 15° /4° | 0 mm | 2 | |
| Jan. 26 | Sunny | 14° /6° | 17.9 mm | 3 | |
| Jan. 27 | Sunny | 17° /6° | 13.8 mm | 3 | |
| Jan. 28 |  Cloudy | 16° /7° | 0 mm | 3 | |
| Jan. 29 | Partly cloudy | 18° /7° | 0 mm | 4 | |
| Jan. 30 | Overcast | 20° /7° | 0 mm | 3 | |
| Jan. 31 | Partly cloudy | 17° /7° | 0 mm | 5 | |
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Important Notice
Our weather forecast for San Bernardino County in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the San Bernardino County forecast closer to your planned date for the most up-to-date weather information.
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San Bernardino County in January - FAQ
What are the expected maximum and minimum temperatures in San Bernardino County during January?
During January, expect a variety of temperatures with highs around 15° and lows near 6°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Bernardino County during January?
Moderate rainfall is anticipated in San Bernardino County during January, with a total of 71.9 mm spread over approximately 7 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in San Bernardino County during January?
The average wind speed in San Bernardino County during January is 11 km/h, suggesting breezy to windy conditions, depending on your activities.
January rainfall patterns in San Bernardino County
Explore the daily rainfall trends and prepare for San Bernardino Countys January weather 💧
Typically, San Bernardino County has 7 rainy days in January with a total of 71.9 mm of rainfall.
UV exposure in San Bernardino County during January
Stay informed about UV levels for safe outdoor activities throughout the month of January ☀️
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Where is San Bernardino County?Get accurate weather forecasts for San Bernardino County, located at latitude 34.108 and longitude -117.29. Stay updated with localized weather information tailored for San Bernardino County.
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