Last updated: June 24, 2025
In December, the average temperature in Stockton, United States hovers around -1°C (30°F). Expect chilly conditions, with minimum temperatures dipping to -14°C (7°F) and maximums reaching up to 15°C (59°F). During this month, precipitation amounts to 39 mm (1.6 in) over approximately 9 days, contributing to a high average humidity of 88%. Prepare for a cold and damp experience!
In December in Stockton, the average temperature is -1°C (30°F), with a maximum reaching 15°C (59°F) and a minimum dropping as low as -14°C (7°F). Travelers should be prepared for a wide range of temperatures and dress in layers to stay comfortable during their visit.
In Stockton in December, the total precipitation amount is 39 mm (1.6 in) spread over a duration of 9 days.
In Stockton in December humidity is 88%. With an average temperature of -1°C (30°F), this humidity feels like a biting chill that penetrates through your layers, making travel uncomfortable as every gust of wind becomes a sharp reminder of the cold and damp air surrounding you.
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.
UV Risk Categories
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.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (29°F) | 45 mm (1.8 inches) | 91% | moderate |
| February Weather | 0°C (33°F) | 52 mm (2.0 inches) | 92% | moderate |
| March Weather | 5°C (42°F) | 67 mm (2.6 inches) | 84% | high |
| April Weather | 10°C (50°F) | 63 mm (2.5 inches) | 74% | very high |
| May Weather | 15°C (60°F) | 53 mm (2.1 inches) | 62% | extreme |
| June Weather | 23°C (73°F) | 16 mm (0.6 inches) | 56% | extreme |
| July Weather | 27°C (81°F) | 18 mm (0.7 inches) | 44% | extreme |
| August Weather | 26°C (78°F) | 25 mm (1.0 inches) | 37% | extreme |
| September Weather | 20°C (68°F) | 36 mm (1.4 inches) | 46% | very high |
| October Weather | 10°C (50°F) | 37 mm (1.5 inches) | 67% | high |
| November Weather | 5°C (41°F) | 30 mm (1.2 inches) | 84% | moderate |
| December Weather | -1°C (30°F) | 39 mm (1.6 inches) | 88% | moderate |