San Bernardino County (Big Bear Lake)
January
Weather in San Bernardino County, California for January 2027
Your guide to San Bernardino County weather in January - trends and predictions
San Bernardino County typically experiences moderate snowfall in January, with an average of 6 snowy days.
In general, the average temperature in San Bernardino County at the beginning of January is 8.1 °F. As the month progressed, temperatures tended to slightly decrease, reaching an average of 7.9 °F by the end of January.
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Snow Forecast ❄️
Temperatures
More
23
Dry days
2
Rainy days
6
Snow days
7°/2°
Temperatures
14 km/h
Avg max wind
46 %
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 | Snow | More |
|---|---|---|---|---|---|
| Jan. 1 |  Overcast | 11° /5° | 98.9 mm | 0 cm | |
| Jan. 2 |  Sunny | 11° /6° | 1.7 mm | 0 cm | |
| Jan. 3 | Overcast | 9° /3° | 0 mm | 0 cm | |
| Jan. 4 |  Partly cloudy | 6° /1° | 15.8 mm | 8.5 cm | |
| Jan. 5 | Partly cloudy | 6° /0° | 14.7 mm | 10.6 cm | |
| Jan. 6 | Sunny | 9° /3° | 0 mm | 0 cm | |
| Jan. 7 |  Moderate or heavy snow showers | 5° /-1° | 2.2 mm | 1.6 cm | |
| Jan. 8 |  Patchy heavy snow | 1° /-4° | 1.9 mm | 0.9 cm | |
| Jan. 9 | Sunny | 4° /-2° | 0 mm | 0 cm | |
| Jan. 10 | Sunny | 6° /-1° | 0 mm | 0 cm | |
| Jan. 11 | Sunny | 7° /0° | 0 mm | 0 cm | |
| Jan. 12 | Sunny | 4° /-2° | 0 mm | 0 cm | |
| Jan. 13 | Sunny | 6° /0° | 0 mm | 0 cm | |
| Jan. 14 | Sunny | 7° /2° | 0 mm | 0 cm | |
| Jan. 15 | Sunny | 8° /3° | 0 mm | 0 cm | |
| Jan. 16 | Sunny | 12° /5° | 0 mm | 0 cm | |
| Jan. 17 | Sunny | 8° /3° | 0 mm | 0 cm | |
| Jan. 18 | Sunny | 9° /0° | 0 mm | 0 cm | |
| Jan. 19 | Sunny | 12° /6° | 0 mm | 0 cm | |
| Jan. 20 | Sunny | 9° /3° | 0 mm | 0 cm | |
| Jan. 21 | Partly cloudy | 9° /2° | 0 mm | 0 cm | |
| Jan. 22 |  Cloudy | 10° /4° | 0 mm | 0 cm | |
| Jan. 23 | Sunny | 4° /1° | 30.4 mm | 19.8 cm | |
| Jan. 24 | Sunny | 8° /2° | 0 mm | 0 cm | |
| Jan. 25 | Overcast | 6° /0° | 0 mm | 0 cm | |
| Jan. 26 |  Mist | 4° /1° | 0 mm | 0 cm | |
| Jan. 27 |  Moderate or heavy snow with thunder | 6° /2° | 8.1 mm | 4.6 cm | |
| Jan. 28 | Sunny | 7° /2° | 0 mm | 0 cm | |
| Jan. 29 | Partly cloudy | 7° /0° | 0 mm | 0 cm | |
| Jan. 30 | Sunny | 12° /3° | 0 mm | 0 cm | |
| Jan. 31 | Cloudy | 13° /5° | 0 mm | 0 cm | |
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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?
Prepare for cooler days with highs just around 7° and colder nights, dipping below 2°.
How much rainfall should be expected in San Bernardino County during January?
Significant rainfall exceeding 173.7 mm is expected in San Bernardino County during January, occurring over more than 2 days. Preparing for wet conditions is recommended in your planning.
Will it snow in San Bernardino County in January 2027?
San Bernardino County experiences an average snowfall of 46.1 cm during January, occurring over 6 days.
What are the typical wind conditions in San Bernardino County during January?
The average wind speed in San Bernardino County during January is 14 km/h, suggesting breezy to windy conditions, depending on your activities.
San Bernardino County snow forecast January 2027
Track daily snowfall levels and discover San Bernardino County’s snowy potential this January ❄️
On average, San Bernardino County sees 6 snowy days during January, with approximately 46.1 cm of total snowfall.
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 2 rainy days in January with a total of 173.7 mm of rainfall.
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Where is San Bernardino County?Get accurate weather forecasts for San Bernardino County, located at latitude 34.244 and longitude -116.911. Stay updated with localized weather information tailored for San Bernardino County.
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