Last updated: June 24, 2025
In January, the average temperature in Detroit, United States hovers around -2°C (28°F). During this month, the temperatures can vary quite a bit, with a minimum dipping to -24°C (-12°F) and a maximum reaching 12°C (55°F). Expect around 67 mm (2.6 in) of precipitation over 8 days, contributing to an average humidity level of 88%, creating a chilly and damp atmosphere.
In January in Detroit, the average temperature is -2°C (28°F). The maximum can reach 12°C (55°F), while the minimum can drop as low as -24°C (-12°F). Be prepared for cold weather and dress in layers if you're planning to travel during this time.
In Detroit in January, the total precipitation amount is 67 mm (2.6 in) over the course of 8 days.
In Detroit in January humidity is 88%. With an average temperature of -2°C (28°F), this humidity feels like an icy cling to your skin, making every breath feel brisk and sharp, while the dampness cuts through layers of clothing, leaving travelers yearning for warmth and comfort.
In Detroit in January, 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 January’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 |