Detroit, MI Climate in September

Temperature for September

In Detroit, MI during September the average high temperature is 74.5°F. The hottest day on record was September 2, 2011 when the temperature hit 98.1°F.

Detroit, MI daily average and extreme temperature range for September

Low Temperature

During September the overnight temperature drops to an average of 57.0°F, with the lowest temperature of 35.1°F being recorded on September 28, 1991. In September it has never frozen overnight.

Precipitation for September

In September the average monthly rainfall in Detroit, MI is 0.89 inches with rain usually falling on between 8 and 9 days. 1974 was the driest September with only 0.00 inches of rain falling, and 2011 was the wettest September with 7.21 inches of rain. The wettest single day in September was 14 September 2008 when 2.19 inches of rain fell.

There are thunderstorms on between 2 and 3 days in September.