Temperature for January 1979
In January 1979 the average high temperature in Detroit, MI was 25.2°F, and this was 7.2°F cooler than the average of 32.4°F. The hottest day in January 1979 was 1 January when the temperature reached 37.0°F. Overnight the average temperature in January is 20.8°F and in 1979 the average overnight temperature was 4.9°F cooler at 15.9°F.