Last updated: June 24, 2025
In December, the average temperature in Shell Lake, United States hovers around -6°C (22°F), with extremes that can plunge to a frigid -30°C (-23°F) or rise to a mild 14°C (58°F). Expect a total precipitation of 59 mm (2.3 in) spread across 8 days, accompanied by a high average humidity of 85%. Stay prepared for a chilly and damp month!
In December in Shell Lake, the average temperature is -6°C (22°F). Maximums can reach 14°C (58°F), while minimums can drop as low as -30°C (-23°F). Travelers should be prepared for a wide range of temperatures and possible cold weather conditions.
In Shell Lake in December, the total precipitation amount is 59 mm (2.3 in) spread over 8 days.
In Shell Lake in December humidity is 85%. With an average temperature of -6°C (22°F), this humidity feels like an icy mist clinging to your skin, making outdoor activities uncomfortably chilly and causing your breath to cloud in the cold air, leaving you yearning for warmth and cozy indoor retreats while traveling.
In Shell Lake 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 Shell Lake, you can visit Hourly UV Index in Shell Lake.
UV Risk Categories
Weather in Shell Lake varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Shell Lake, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -10°C (15°F) | 25 mm (1.0 inches) | 88% | low |
| February Weather | -9°C (15°F) | 37 mm (1.5 inches) | 89% | moderate |
| March Weather | -1°C (31°F) | 50 mm (2.0 inches) | 86% | moderate |
| April Weather | 5°C (42°F) | 94 mm (3.7 inches) | 85% | high |
| May Weather | 14°C (57°F) | 113 mm (4.5 inches) | 79% | very high |
| June Weather | 20°C (68°F) | 95 mm (3.7 inches) | 80% | very high |
| July Weather | 22°C (72°F) | 104 mm (4.1 inches) | 80% | very high |
| August Weather | 20°C (69°F) | 120 mm (4.7 inches) | 78% | very high |
| September Weather | 16°C (62°F) | 98 mm (3.9 inches) | 80% | high |
| October Weather | 8°C (47°F) | 97 mm (3.8 inches) | 84% | moderate |
| November Weather | 0°C (31°F) | 43 mm (1.7 inches) | 89% | moderate |
| December Weather | -6°C (22°F) | 59 mm (2.3 inches) | 85% | low |