Last updated: June 24, 2025
In December, the average temperature in Happy Camp, United States hovers around 2°C (36°F). Expect minimal temperatures to dip as low as -13°C (9°F) and occasionally rise to a balmy 18°C (64°F). During this month, precipitation averages 187 mm (7.4 in) over approximately 13 days, contributing to the high average humidity of 86%. Stay prepared for wet and chilly conditions!
In December in Happy Camp, the average temperature is 2°C (36°F). Maximum temperatures can reach 18°C (64°F), while minimums can drop as low as -13°C (9°F). Travelers should be prepared for a wide range of temperatures and dress in layers to stay comfortable during their visit.
In Happy Camp in December, the total precipitation amount is 187 mm (7.4 in) spread over 13 days.
In Happy Camp 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 Happy Camp 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 Happy Camp, you can check the information here.
UV Risk Categories
Weather in Happy Camp varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Happy Camp, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | 3°C (37°F) | 244 mm (9.6 inches) | 86% | moderate |
| February Weather | 3°C (38°F) | 228 mm (9.0 inches) | 85% | moderate |
| March Weather | 5°C (41°F) | 172 mm (6.8 inches) | 85% | high |
| April Weather | 8°C (47°F) | 121 mm (4.8 inches) | 82% | very high |
| May Weather | 12°C (54°F) | 65 mm (2.6 inches) | 81% | extreme |
| June Weather | 17°C (63°F) | 25 mm (1.0 inches) | 79% | extreme |
| July Weather | 21°C (71°F) | 3 mm (0.1 inches) | 70% | very high |
| August Weather | 21°C (70°F) | 3 mm (0.1 inches) | 60% | very high |
| September Weather | 16°C (62°F) | 40 mm (1.6 inches) | 62% | very high |
| October Weather | 11°C (52°F) | 69 mm (2.7 inches) | 72% | high |
| November Weather | 6°C (43°F) | 155 mm (6.1 inches) | 87% | moderate |
| December Weather | 2°C (36°F) | 187 mm (7.4 inches) | 86% | moderate |