Weather Trends in Detroit, United StatesWeather Trends in Detroit,
United States

Detroit features a continental climate characterized by distinct seasonal contrasts and significant temperature shifts throughout the year. WeatherBox data indicates that the average annual temperature variance is 26.6°C (47.9°F), shifting from freezing winters to warm summers. During the coldest month, daily low temperatures drop to an average of -6.8°C (19.8°F), and in extreme cold snaps, readings can fall as low as -15.4°C (4.3°F). Conversely, the peak of summer brings substantial heat, with average daily highs reaching 27.7°C (81.9°F), and occasional heatwaves pushing temperatures to 32.1°C (89.8°F).

Atmospheric conditions vary alongside the thermometer, bringing wet springs and cloudy winters. The city receives an annual precipitation total of 874 mm (34 in), with the heaviest rainfall occurring in May, averaging 94 mm (4 in). Late winter represents the driest period, as precipitation dips to 59 mm (2 in). Cloud coverage is particularly intense in December, covering the sky 85.0 of the time, resulting in limited sunshine averaging just 70.3 hours. In contrast, summer offers abundant sunlight, peaking at 315.1 hours. Prevailing winds typically arrive from the SW, with the highest average speeds of 15.2 km/h (9.5 mph) occurring in November.

Solar intensity fluctuates significantly, and the average peak UV Index is 6.9 during the height of summer. WeatherBox data shows that relative humidity also peaks in December at 76.7, contributing to a damp chill, while comfortable humidity levels are most frequent in September. For a complete visual breakdown of these metrics, view the advanced weather charts on the WeatherBox website.