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December Weather in Stockton, United States

Last updated: June 24, 2025

In December, the average temperature in Stockton, United States is a brisk 5°C (41°F). Expect a wide range, with temperatures dipping as low as -13°C (8°F) and soaring up to 24°C (76°F). This month brings about 42 mm (1.6 in) of precipitation over 5 days, contributing to the high average humidity of 87%. Prepare for a chilly and damp experience!

December Temperature in Stockton

In December in Stockton, the average temperature is 5°C (41°F). The maximum can reach 24°C (76°F), while the minimum can be as low as -13°C (8°F). Be prepared for a wide range of temperatures, so pack layers for your trip!

December Weather in Stockton: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Stockton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Stockton, December typically has an average temperature of 5°C (41°F), with highs reaching up to 24°C (76°F) and lows dropping to around -13°C (8°F).
JanFebMarAprMayJunJulAugSepOctNovDec353749566777807773594641
Data source: Temperature data for Stockton generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Stockton

In Stockton in December, the precipitation amount is 42 mm (1.6 in) over a period of 5 days.

December Precipitation Trends in Stockton

The chart displays monthly precipitation patterns in Stockton, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Stockton, December typically receives around 42 mm (1.6 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec696513312818086108144751195742
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Stockton

In Stockton in December humidity is 87%. With an average temperature of 5°C (41°F), this humidity feels like a heavy, damp blanket enveloping you, making every step seem laborious and the chill more biting, which can be quite challenging for traveling.

December Average Humidity in Stockton

This chart illustrates the average monthly humidity levels in Stockton, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Stockton is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%78%76%78%83%83%78%68%64%70%83%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Stockton

In Stockton in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Stockton, you can check the information here.

Maximum UV Index Levels in Stockton for December

The chart shows the monthly maximum UV Index (UVI) for Stockton in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Stockton typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec36710101111109753
Data source: Stockton December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Stockton Compares to Other Months

Weather in Stockton varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Stockton, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Stockton, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (35°F)69 mm (2.7 inches)81%moderate
February Weather3°C (37°F)65 mm (2.5 inches)78%high
March Weather9°C (49°F)133 mm (5.2 inches)76%high
April Weather13°C (56°F)128 mm (5.0 inches)78%very high
May Weather19°C (67°F)180 mm (7.1 inches)83%very high
June Weather25°C (77°F)86 mm (3.4 inches)83%extreme
July Weather27°C (80°F)108 mm (4.2 inches)78%extreme
August Weather25°C (77°F)144 mm (5.7 inches)68%very high
September Weather23°C (73°F)75 mm (3.0 inches)64%very high
October Weather15°C (59°F)119 mm (4.7 inches)70%high
November Weather8°C (47°F)57 mm (2.2 inches)83%moderate
December Weather5°C (41°F)42 mm (1.6 inches)87%moderate

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