AAA Michigan says gasoline prices have risen roughly 3 cents during the past week to a statewide average of about $3.91 per gallon.
The auto club said Monday the average is about 53 cents per gallon more 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 Marquette area, where it's about $3.76 a gallon. The highest average is in the Grand Rapids area at about $3.94.
Dearborn-based AAA Michigan surveys 2,800 Michigan gas stations daily.