Riverside County (Riverside)
January
Weather in Riverside County for January 2026
Your guide to Riverside County weather in January - trends and predictions
In general, the average temperature in Riverside County at the beginning of January is 16.6 °F. As the month progressed, temperatures tended to remain steady, reaching an average of 16.6 °F by the end of January.
The climate of Riverside County in January is notably wet, with an average of 14 rainy days, and a total of 122.3 mm of precipitation.
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Temperatures
Rain 🌧️
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17
Dry days
14
Rainy days
0
Snow days
16°/8°
Temperatures
10 km/h
Avg max wind
50 %
Avg humidity
Riverside County Weather January
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  17° | 2  18° | 3 16° | ||||
| 4 16° | 5  16° | 6 18° | 7  15° | 8  16° | 9 17° | 10 16° |
| 11 16° | 12 17° | 13 16° | 14 15° | 15 15° | 16 17° | 17 14° |
| 18 16° | 19 16° | 20 15° | 21 15° | 22 16° | 23 18° | 24 19° |
| 25 17° | 26 17° | 27 17° | 28 17° | 29 15° | 30 16° | 31 17° |
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Temperatures trend during January in Riverside County
See the weather trend as well as the moving average line
January weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jan. 1 | Moderate rain at times | 17° /8° | 6.4 mm | 4 | |
| Jan. 2 | Patchy rain possible | 18° /8° | 0.5 mm | 5 | |
| Jan. 3 | Moderate rain at times | 16° /9° | 4.6 mm | 4 | |
| Jan. 4 | Patchy rain possible | 16° /7° | 1.7 mm | 4 | |
| Jan. 5 | Sunny | 16° /7° | 10 mm | 5 | |
| Jan. 6 | Sunny | 18° /7° | 0 mm | 5 | |
| Jan. 7 | Overcast | 15° /7° | 0.5 mm | 3 | |
| Jan. 8 | Partly cloudy | 16° /7° | 0 mm | 4 | |
| Jan. 9 | Sunny | 17° /7° | 2.9 mm | 5 | |
| Jan. 10 | Sunny | 16° /6° | 15.8 mm | 4 | |
| Jan. 11 | Partly cloudy | 16° /6° | 0.1 mm | 4 | |
| Jan. 12 | Sunny | 17° /6° | 0 mm | 5 | |
| Jan. 13 | Sunny | 16° /6° | 0 mm | 5 | |
| Jan. 14 | Sunny | 15° /7° | 11.8 mm | 4 | |
| Jan. 15 | Moderate rain at times | 15° /7° | 3.5 mm | 4 | |
| Jan. 16 | Sunny | 17° /7° | 7.7 mm | 5 | |
| Jan. 17 | Partly cloudy | 14° /5° | 0.1 mm | 4 | |
| Jan. 18 | Sunny | 16° /6° | 0 mm | 4 | |
| Jan. 19 | Patchy rain possible | 16° /7° | 0.3 mm | 4 | |
| Jan. 20 | Sunny | 15° /6° | 1.8 mm | 4 | |
| Jan. 21 | Sunny | 15° /4° | 2.7 mm | 4 | |
| Jan. 22 | Sunny | 16° /7° | 6.1 mm | 4 | |
| Jan. 23 | Sunny | 18° /7° | 0 mm | 5 | |
| Jan. 24 | Sunny | 19° /5° | 0 mm | 5 | |
| Jan. 25 | Sunny | 17° /6° | 0 mm | 4 | |
| Jan. 26 | Sunny | 17° /8° | 1 mm | 4 | |
| Jan. 27 | Sunny | 17° /7° | 12.1 mm | 4 | |
| Jan. 28 | Sunny | 17° /8° | 0 mm | 5 | |
| Jan. 29 | Moderate rain at times | 15° /8° | 1.5 mm | 4 | |
| Jan. 30 | Overcast | 16° /8° | 3.7 mm | 4 | |
| Jan. 31 | Partly cloudy | 17° /6° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Riverside 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 Riverside County forecast closer to your planned date for the most up-to-date weather information.
Riverside County in January - FAQ
What are the expected maximum and minimum temperatures in Riverside County during January?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Riverside County during January?
Significant rainfall exceeding 122.3 mm is expected in Riverside County during January, occurring over more than 14 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Riverside County during January?
The average wind speed in Riverside County during January is 10 km/h, suggesting breezy to windy conditions, depending on your activities.
January rainfall patterns in Riverside County
Explore the daily rainfall trends and prepare for Riverside Countys January weather 💧
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Where is Riverside County?Get accurate weather forecasts for Riverside County, located at latitude 33.953 and longitude -117.396. Stay updated with localized weather information tailored for Riverside County.
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