Temperature for May
In Detroit, MI during May the average high temperature is 70.7°F. The hottest day on record was May 31, 1986 when the temperature hit 91.9°F.
Precipitation for May
In May the average monthly rainfall in Detroit, MI is 1.13 inches with rain usually falling on between 10 and 11 days. 1974 was the driest May with only 0.00 inches of rain falling, and 2011 was the wettest May with 6.84 inches of rain. The wettest single day in May was 26 May 2011 when 3.16 inches of rain fell.
In May it usually snows on between 0 and 1 days. There are thunderstorms on between 3 and 4 days in May.