Last updated: June 24, 2025
In December, the average temperature in Clark Fork, United States hovers around 0°C (31°F). You might experience minimum chills of -14°C (8°F), while the mercury can rise to a pleasant 12°C (54°F). Expect precipitation of about 155 mm (6.1 in) spread across 20 days, contributing to an overall humidity level of a notable 96%. Perfect for cozy indoor activities!
In December in Clark Fork, the average temperature is 0°C (31°F). Maximum temperatures can reach 12°C (54°F), while minimums can drop as low as -14°C (8°F). Travelers should be prepared for a wide range of temperatures and dress in layers to stay comfortable during their visit.
In Clark Fork in December, the precipitation amount is 155 mm (6.1 in) spread over a duration of 20 days.
In Clark Fork in December humidity is 96%. With an average temperature of 0°C (31°F), this humidity feels like a heavy, damp blanket enveloping you, making even short walks outside feel laborious and chilling, as the moisture seeps into your clothes and clings to your skin, amplifying the cold and turning every breath into a visible cloud of vapor.
In Clark Fork 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 Clark Fork, you can visit Hourly UV Index in Clark Fork.
UV Risk Categories
Weather in Clark Fork varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Clark Fork, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -1°C (30°F) | 122 mm (4.8 inches) | 95% | low |
| February Weather | -3°C (27°F) | 128 mm (5.0 inches) | 93% | moderate |
| March Weather | 1°C (35°F) | 95 mm (3.7 inches) | 91% | high |
| April Weather | 5°C (42°F) | 88 mm (3.5 inches) | 88% | high |
| May Weather | 11°C (52°F) | 67 mm (2.6 inches) | 83% | very high |
| June Weather | 15°C (59°F) | 42 mm (1.7 inches) | 80% | very high |
| July Weather | 20°C (69°F) | 10 mm (0.4 inches) | 82% | very high |
| August Weather | 21°C (70°F) | 29 mm (1.1 inches) | 71% | very high |
| September Weather | 15°C (60°F) | 61 mm (2.4 inches) | 71% | high |
| October Weather | 8°C (46°F) | 116 mm (4.6 inches) | 85% | moderate |
| November Weather | 3°C (37°F) | 144 mm (5.7 inches) | 90% | moderate |
| December Weather | 0°C (31°F) | 155 mm (6.1 inches) | 96% | low |