San Joaquin County (Stockton)
December
Weather in San Joaquin County for December 2025
Your guide to San Joaquin County weather in December - trends and predictions
In general, the average temperature in San Joaquin County at the beginning of December is 16.6 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 13.4 °F by the end of December.
San Joaquin County experiences moderate rainfall in December, with an average of 8 rainy days and a total precipitation of 130 mm.
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Temperatures
Rain 🌧️
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23
Dry days
8
Rainy days
0
Snow days
15°/7°
Temperatures
12 km/h
Avg max wind
68 %
Avg humidity
San Joaquin County in December average weather
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  17° | 2  16° | 3  18° | 4 20° | 5 17° | 6 14° | |
| 7 14° | 8 15° | 9  13° | 10 14° | 11  15° | 12 14° | 13 14° |
| 14 13° | 15  12° | 16 15° | 17 15° | 18 12° | 19 12° | 20 16° |
| 21 14° | 22 15° | 23 15° | 24 14° | 25 14° | 26 13° | 27  13° |
| 28 15° | 29  14° | 30 12° | 31 13° |
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Temperatures trend during December in San Joaquin County
See the weather trend as well as the moving average line
December weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 | Mist | 17° /3° | 0 mm | 4 | |
| Dec. 2 | Patchy rain possible | 16° /4° | 0.1 mm | 4 | |
| Dec. 3 | Overcast | 18° /6° | 0 mm | 5 | |
| Dec. 4 | Fog | 20° /7° | 0 mm | 5 | |
| Dec. 5 | Mist | 17° /5° | 0 mm | 4 | |
| Dec. 6 | Light rain shower | 14° /4° | 1.9 mm | 4 | |
| Dec. 7 | Light rain shower | 14° /5° | 0.5 mm | 4 | |
| Dec. 8 | Mist | 15° /3° | 0 mm | 4 | |
| Dec. 9 | Cloudy | 13° /0° | 0 mm | 4 | |
| Dec. 10 | Overcast | 14° /0° | 0 mm | 4 | |
| Dec. 11 | Partly cloudy | 15° /3° | 0 mm | 4 | |
| Dec. 12 | Partly cloudy | 14° /7° | 20.2 mm | 4 | |
| Dec. 13 | Overcast | 14° /6° | 0 mm | 4 | |
| Dec. 14 | Overcast | 13° /7° | 13.7 mm | 4 | |
| Dec. 15 | Sunny | 12° /5° | 0 mm | 4 | |
| Dec. 16 | Partly cloudy | 15° /6° | 2.7 mm | 4 | |
| Dec. 17 | Partly cloudy | 15° /8° | 0 mm | 4 | |
| Dec. 18 | Light rain shower | 12° /7° | 3.3 mm | 3 | |
| Dec. 19 | Light rain shower | 12° /8° | 9.2 mm | 3 | |
| Dec. 20 | Light rain shower | 16° /9° | 7.8 mm | 4 | |
| Dec. 21 | Partly cloudy | 14° /8° | 0 mm | 4 | |
| Dec. 22 | Partly cloudy | 15° /8° | 1.6 mm | 4 | |
| Dec. 23 | Partly cloudy | 15° /8° | 0 mm | 4 | |
| Dec. 24 | Partly cloudy | 14° /7° | 15.5 mm | 3 | |
| Dec. 25 | Cloudy | 14° /6° | 0 mm | 4 | |
| Dec. 26 | Patchy rain possible | 13° /7° | 0.4 mm | 4 | |
| Dec. 27 | Moderate or heavy rain shower | 13° /9° | 20.9 mm | 3 | |
| Dec. 28 | Sunny | 15° /8° | 0 mm | 4 | |
| Dec. 29 | Heavy rain at times | 14° /8° | 6 mm | 3 | |
| Dec. 30 | Moderate or heavy rain shower | 12° /7° | 14.6 mm | 3 | |
| Dec. 31 | Moderate or heavy rain shower | 13° /5° | 23.4 mm | 3 | |
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Important Notice
Our weather forecast for San Joaquin County in December 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 December - FAQ
What are the expected maximum and minimum temperatures in San Joaquin County during December?
During December, expect a variety of temperatures with highs around 15° and lows near 7°, suitable for diverse activities and preferences.
How much rainfall should be expected in San Joaquin County during December?
Significant rainfall exceeding 130 mm is expected in San Joaquin County during December, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in San Joaquin County during December?
The average wind speed in San Joaquin County during December is 12 km/h, suggesting breezy to windy conditions, depending on your activities.
December rainfall patterns in San Joaquin County
Explore the daily rainfall trends and prepare for San Joaquin Countys December weather 💧
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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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