Temperature for January 1989
In January 1989 the average high temperature in Detroit, MI was 39.7°F, and this was 7.3°F warmer than the average of 32.4°F. The hottest day in January 1989 was 31 January when the temperature reached 59.0°F. Overnight the average temperature in January is 20.8°F and in 1989 the average overnight temperature was 6.5°F warmer at 27.3°F.