San Joaquin County
January
Weather in San Joaquin County for January 2025
Your guide to San Joaquin County weather in January - trends and predictions
In general, the average temperature in San Joaquin County at the beginning of January is 12.7 °F. As the month progressed, temperatures tended to noticeably warm up, reaching an average of 15.7 °F by the end of January.
With an average of 5 rainy days, San Joaquin County experiences minimal rainfall in January, ensuring that most days remain pleasantly dry.
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26
Dry days
5
Rainy days
0
Snow days
15°/4°
Temperatures
17 km/h
Avg max wind
78 %
Avg humidity
San Joaquin County in January average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  15° | 2  11° | 3 12° | 4 12° | 5 14° | ||
| 6  13° | 7 12° | 8  13° | 9 12° | 10 10° | 11 11° | 12 14° |
| 13 11° | 14 13° | 15 12° | 16 11° | 17  14° | 18  13° | 19  13° |
| 20 12° | 21 13° | 22 12° | 23 15° | 24 13° | 25 16° | 26 16° |
| 27 17° | 28 17° | 29 15° | 30 15° | 31 14° |
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Temperatures trend during January in San Joaquin 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 | Sunny | 15° /6° | 0.1 mm | 5 | |
| Jan. 2 | Moderate or heavy rain shower | 11° /5° | 4.7 mm | 3 | |
| Jan. 3 | Moderate rain at times | 12° /6° | 7.7 mm | 3 | |
| Jan. 4 | Moderate rain at times | 12° /5° | 4.1 mm | 4 | |
| Jan. 5 | Moderate or heavy rain shower | 14° /7° | 16 mm | 3 | |
| Jan. 6 | Partly cloudy | 13° /7° | 5.6 mm | 4 | |
| Jan. 7 | Moderate rain at times | 12° /5° | 4.1 mm | 4 | |
| Jan. 8 | Heavy rain at times | 13° /6° | 8.6 mm | 4 | |
| Jan. 9 | Moderate or heavy rain shower | 12° /7° | 15.9 mm | 3 | |
| Jan. 10 | Moderate or heavy rain shower | 10° /6° | 9.8 mm | 3 | |
| Jan. 11 | Heavy rain at times | 11° /5° | 4.1 mm | 3 | |
| Jan. 12 | Sunny | 14° /6° | 0 mm | 5 | |
| Jan. 13 | Moderate or heavy rain shower | 11° /9° | 7.1 mm | 3 | |
| Jan. 14 | Moderate or heavy rain shower | 13° /7° | 15.1 mm | 3 | |
| Jan. 15 | Moderate rain at times | 12° /7° | 5.8 mm | 3 | |
| Jan. 16 | Moderate or heavy rain shower | 11° /6° | 13.6 mm | 3 | |
| Jan. 17 | Cloudy | 14° /7° | 1.4 mm | 4 | |
| Jan. 18 | Overcast | 13° /4° | 1 mm | 4 | |
| Jan. 19 | Patchy rain possible | 13° /6° | 1.9 mm | 4 | |
| Jan. 20 | Sunny | 12° /6° | 4.5 mm | 4 | |
| Jan. 21 | Cloudy | 13° /6° | 1 mm | 4 | |
| Jan. 22 | Sunny | 12° /6° | 13.5 mm | 4 | |
| Jan. 23 | Sunny | 15° /6° | 0 mm | 4 | |
| Jan. 24 | Partly cloudy | 13° /6° | 0.9 mm | 4 | |
| Jan. 25 | Sunny | 16° /6° | 0 mm | 5 | |
| Jan. 26 | Sunny | 16° /6° | 0 mm | 4 | |
| Jan. 27 | Sunny | 17° /7° | 0 mm | 5 | |
| Jan. 28 | Partly cloudy | 17° /7° | 0 mm | 5 | |
| Jan. 29 | Moderate rain at times | 15° /7° | 0.6 mm | 4 | |
| Jan. 30 | Sunny | 15° /6° | 0 mm | 5 | |
| Jan. 31 | Partly cloudy | 14° /6° | 2.3 mm | 4 | |
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Important Notice
Our weather forecast for San Joaquin 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 Joaquin County forecast closer to your planned date for the most up-to-date weather information.
San Joaquin County in January - FAQ
What are the expected maximum and minimum temperatures in San Joaquin County during January?
Prepare for cooler days with highs just around 15° and colder nights, dipping below 4°.
How much rainfall should be expected in San Joaquin County during January?
Significant rainfall exceeding 298.4 mm is expected in San Joaquin County during January, occurring over more than 5 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in San Joaquin County during January?
The average wind speed in San Joaquin County during January is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
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Where is San Joaquin County?Get accurate weather forecasts for San Joaquin County, located at latitude 37.958 and longitude -121.291. Stay updated with localized weather information tailored for San Joaquin County.
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