AAA Michigan says gasoline prices have risen 12.3 cents during the past week to a statewide average of about $3.37 per gallon.
The auto club said Tuesday the average is about three cents per gallon less than last year at this time.
Of the Michigan cities it surveys, AAA Michigan said the cheapest price for self-serve unleaded fuel is in the Detroit area, where it's about $3.33 a gallon. The highest average is in the Flint area at about $3.43.
Dearborn-based AAA Michigan surveys 2,800 Michigan gas stations daily.