Last updated: June 24, 2025
In December, the average temperature in New California, United States hovers around 2°C (36°F). Temperatures can range from a chilly -17°C (2°F) at their lowest to a pleasant 18°C (65°F) at their peak. Expect 91 mm (3.6 in) of precipitation over about 11 days, coupled with an average humidity of 86%. Prepare for a mix of crisp days and damp conditions!
In December in New California, the average temperature is 2°C (36°F). Maximums can reach 18°C (65°F) and minimums can be as low as -17°C (2°F). Be prepared for a wide range of temperatures and pack accordingly for your trip.
In New California in December, the precipitation amount is 91 mm (3.6 in) over a period of 11 days.
In New California in December, humidity is 86%. With an average temperature of 2°C (36°F), this humidity feels like a biting chill that clings to your skin, making outdoor exploration uncomfortable and dampening any enthusiasm for travel.
In New California 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 New California, you can check the information here.
UV Risk Categories
Weather in New California varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in New California, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 73 mm (2.9 inches) | 88% | moderate |
| February Weather | 1°C (33°F) | 99 mm (3.9 inches) | 87% | moderate |
| March Weather | 5°C (42°F) | 100 mm (3.9 inches) | 87% | high |
| April Weather | 11°C (51°F) | 111 mm (4.4 inches) | 87% | very high |
| May Weather | 17°C (63°F) | 123 mm (4.8 inches) | 81% | very high |
| June Weather | 22°C (72°F) | 136 mm (5.4 inches) | 82% | very high |
| July Weather | 24°C (76°F) | 111 mm (4.4 inches) | 81% | very high |
| August Weather | 23°C (73°F) | 80 mm (3.1 inches) | 78% | very high |
| September Weather | 20°C (69°F) | 86 mm (3.4 inches) | 78% | very high |
| October Weather | 14°C (58°F) | 95 mm (3.8 inches) | 82% | high |
| November Weather | 5°C (42°F) | 93 mm (3.7 inches) | 89% | moderate |
| December Weather | 2°C (36°F) | 91 mm (3.6 inches) | 86% | moderate |