average monthly temperatures for michigan
Climate for Detroit, Michigan. Detroit's coldest month is January when the average temperature overnight is 17.8Â°F. In July, the warmest month, the average day time temperature rises to 83.4Â°F.The driest month in Detroit is February with 1.88 inches of precipitation, and with 3.55 inches June is the wettest month.n July, the warmest month, the average day time temperature rises to 83.4Â°F. The driest month in Detroit is February with 1.88 inches of precipitation, and with 3.55 inches June is the wettest month.