Temperature for August
In Detroit, MI during August the average high temperature is 81.9°F. The hottest day on record was August 8, 2001 when the temperature hit 102.0°F.
Precipitation for August
In August the average monthly rainfall in Detroit, MI is 0.79 inches with rain usually falling on between 8 and 9 days. 1974 was the driest August with only 0.00 inches of rain falling, and 2007 was the wettest August with 5.91 inches of rain. The wettest single day in August was 9 August 2009 when 1.50 inches of rain fell.
In August it usually snows on between 0 and 1 days. There are thunderstorms on between 3 and 4 days in August.