Last updated: June 24, 2025
In December, the average temperature in Crescent City, United States hovers around 1°C (35°F), with the potential to drop as low as -25°C (-12°F) or rise to a pleasant 18°C (65°F). Expect a total precipitation of 56 mm (2.2 in) spread across about 8 days, accompanied by an average humidity level of a high 84%. Be prepared for a mix of chilly days and the occasional warm spell!
In December in Crescent City, the average temperature is 1°C (35°F). Maximums can reach 18°C (65°F), while minimums can drop as low as -25°C (-12°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your trip.
In Crescent City in December, the precipitation amount is 56 mm (2.2 in) over the course of 8 days.
In Crescent City in December humidity is 84%. With an average temperature of 1°C (35°F), this humidity feels like a cold, damp chill that seeps into your bones, making it feel much colder than the thermometer suggests, which can be quite uncomfortable for traveling.
In Crescent City in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Crescent City, you can visit Hourly UV Index in Crescent City.
UV Risk Categories
Weather in Crescent City varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Crescent City, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (28°F) | 71 mm (2.8 inches) | 82% | moderate |
| February Weather | -1°C (30°F) | 74 mm (2.9 inches) | 83% | moderate |
| March Weather | 5°C (42°F) | 106 mm (4.2 inches) | 84% | high |
| April Weather | 11°C (51°F) | 117 mm (4.6 inches) | 85% | very high |
| May Weather | 18°C (64°F) | 153 mm (6.0 inches) | 79% | very high |
| June Weather | 23°C (74°F) | 111 mm (4.4 inches) | 82% | very high |
| July Weather | 25°C (77°F) | 91 mm (3.6 inches) | 80% | very high |
| August Weather | 23°C (74°F) | 101 mm (4.0 inches) | 81% | very high |
| September Weather | 21°C (70°F) | 79 mm (3.1 inches) | 80% | very high |
| October Weather | 14°C (57°F) | 125 mm (4.9 inches) | 82% | high |
| November Weather | 5°C (41°F) | 70 mm (2.7 inches) | 88% | moderate |
| December Weather | 1°C (35°F) | 56 mm (2.2 inches) | 84% | low |