Last updated: June 24, 2025
In December, the average temperature in Fruitvale, United States hovers around -3°C (28°F). Expect a chilly environment, with minimum temperatures plummeting to -22°C (-8°F) and maximums reaching a brisk 15°C (59°F). During this period, the region experiences approximately 37 mm (1.5 in) of precipitation over 7 days, accompanied by a high average humidity of 90%.
In December in Fruitvale, the average temperature is -3°C (28°F), with maximums reaching 15°C (59°F) and minimums dropping as low as -22°C (-8°F). Travelers should be prepared for a wide range of temperatures and dress in layers to stay comfortable.
In Fruitvale in December, the precipitation amount is 37 mm (1.5 in) during a span of 7 days.
In Fruitvale in December humidity is 90%. With an average temperature of -3°C (28°F), this humidity feels like an icy fog wrapping around you, making outdoor activities uncomfortable and potentially dangerous for traveling.
In Fruitvale in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Fruitvale for better planning.
UV Risk Categories
Weather in Fruitvale varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Fruitvale, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -4°C (24°F) | 40 mm (1.6 inches) | 90% | moderate |
| February Weather | -2°C (29°F) | 49 mm (1.9 inches) | 89% | high |
| March Weather | 4°C (39°F) | 69 mm (2.7 inches) | 81% | very high |
| April Weather | 9°C (49°F) | 33 mm (1.3 inches) | 74% | very high |
| May Weather | 15°C (59°F) | 42 mm (1.7 inches) | 58% | extreme |
| June Weather | 22°C (72°F) | 26 mm (1.0 inches) | 47% | extreme |
| July Weather | 25°C (77°F) | 34 mm (1.3 inches) | 39% | extreme |
| August Weather | 23°C (74°F) | 29 mm (1.1 inches) | 39% | extreme |
| September Weather | 19°C (66°F) | 40 mm (1.6 inches) | 53% | very high |
| October Weather | 9°C (49°F) | 55 mm (2.2 inches) | 72% | high |
| November Weather | 4°C (39°F) | 23 mm (0.9 inches) | 84% | moderate |
| December Weather | -3°C (28°F) | 37 mm (1.5 inches) | 90% | moderate |