Last updated: June 24, 2025
In Detroit, United States, the average temperature in May hovers around 15°C (60°F). However, prepare for a range of possible temperatures, with lows reaching -1°C (30°F) and highs soaring to 31°C (87°F). Expect 111 mm (4.4 in) of precipitation spread over 15 days, coupled with an average humidity of 80%. Whether you’re enjoying the cooler days or bracing for a warm spell, don't forget your umbrella!
In May in Detroit, the average temperature is 15°C (60°F). Maximums can reach 31°C (87°F), while minimums can drop as low as -1°C (30°F). This makes Detroit a destination with a diverse climate, so travelers should be prepared for both warm and cool conditions.
In Detroit in May, the total precipitation amount is 111 mm (4.4 in) spread over 15 days.
In Detroit in May humidity is 80%. With an average temperature of 15°C (60°F), this humidity feels like a warm, sticky embrace that can make even the simplest stroll feel like a workout, leaving travelers yearning for a refreshing breeze or shade to escape the weight of the air.
In Detroit in May, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the 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 May’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 |