Last updated: June 24, 2025
In December, the average temperature in Detroit, United States hovers around 1°C (34°F). Prepare for a chilly experience, as temperatures can dip to a brisk -21°C (-6°F), while occasionally reaching a pleasant maximum of 16°C (61°F). With an average precipitation of 59 mm (2.3 in) over 11 days, and a humidity level of 86%, it's wise to pack accordingly for a cozy and comfortable visit!
In December in Detroit, the average temperature is 1°C (34°F), with a maximum that can reach 16°C (61°F) and a minimum that can be as low as -21°C (-6°F). Be sure to pack layers and prepare for fluctuating temperatures when traveling to Detroit during this time.
In Detroit in December, the precipitation amount is 59 mm (2.3 in) over the course of 11 days.
In Detroit in December, humidity is 86%. With an average temperature of 1°C (34°F), this humidity feels like a chilling embrace, making outdoor adventures brisk and invigorating but challenging for travel.
In Detroit 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 Detroit, you can visit Hourly UV Index in Detroit.
UV Risk Categories
Weather in Detroit varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Detroit, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -2°C (28°F) | 67 mm (2.6 inches) | 88% | low |
| February Weather | -2°C (29°F) | 68 mm (2.7 inches) | 87% | moderate |
| March Weather | 3°C (37°F) | 72 mm (2.8 inches) | 85% | moderate |
| April Weather | 8°C (47°F) | 90 mm (3.5 inches) | 86% | very high |
| May Weather | 15°C (60°F) | 111 mm (4.4 inches) | 80% | very high |
| June Weather | 21°C (71°F) | 80 mm (3.2 inches) | 80% | very high |
| July Weather | 24°C (76°F) | 86 mm (3.4 inches) | 80% | very high |
| August Weather | 23°C (74°F) | 75 mm (2.9 inches) | 80% | very high |
| September Weather | 20°C (67°F) | 58 mm (2.3 inches) | 80% | very high |
| October Weather | 13°C (56°F) | 99 mm (3.9 inches) | 84% | moderate |
| November Weather | 5°C (41°F) | 82 mm (3.2 inches) | 89% | moderate |
| December Weather | 1°C (34°F) | 59 mm (2.3 inches) | 86% | low |