Last updated: June 24, 2025
In December, the average temperature in Fosston, United States hovers around -9°C (16°F). Expect some chilly extremes, with lows plunging to a brisk -36°C (-32°F) and highs reaching a modest 7°C (45°F). Be prepared for wet days, as 43 mm (1.7 in) of precipitation can fall over approximately 8 days, accompanied by a notably high average humidity of 86%.
In December in Fosston, the average temperature is -9°C (16°F). The maximum can reach 7°C (45°F) and the minimum can be as low as -36°C (-32°F). Travelers should be prepared for extreme cold conditions and dress in layers to stay warm during this time.
In Fosston in December, the total precipitation amount is 43 mm (1.7 in) over the course of 8 days.
In Fosston in December, humidity is 86%. With an average temperature of -9°C (16°F), this humidity feels like a cold, biting chill that seeps into your bones, making outdoor activities less enjoyable and travel quite uncomfortable.
In Fosston 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 Fosston, you can visit Hourly UV Index in Fosston.
UV Risk Categories
Weather in Fosston varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Fosston, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -13°C (9°F) | 21 mm (0.8 inches) | 90% | low |
| February Weather | -13°C (9°F) | 24 mm (0.9 inches) | 92% | moderate |
| March Weather | -3°C (27°F) | 27 mm (1.1 inches) | 85% | moderate |
| April Weather | 3°C (38°F) | 56 mm (2.2 inches) | 81% | high |
| May Weather | 13°C (55°F) | 50 mm (2.0 inches) | 75% | very high |
| June Weather | 20°C (68°F) | 82 mm (3.2 inches) | 79% | very high |
| July Weather | 22°C (71°F) | 71 mm (2.8 inches) | 76% | very high |
| August Weather | 19°C (67°F) | 84 mm (3.3 inches) | 78% | very high |
| September Weather | 15°C (59°F) | 105 mm (4.2 inches) | 77% | high |
| October Weather | 6°C (43°F) | 81 mm (3.2 inches) | 79% | moderate |
| November Weather | -3°C (26°F) | 27 mm (1.1 inches) | 86% | moderate |
| December Weather | -9°C (16°F) | 43 mm (1.7 inches) | 86% | low |