AAA Michigan says gas prices statewide have dropped by about 6 cents per gallon in the past week.
The Dearborn-based auto club says the average price for self-serve regular unleaded gasoline was about $2.45 per gallon.
Prices are about 19 cents more than at the same point last year.
Michigan's lowest average price was about $2.37 per gallon in the Traverse City area.
The highest was about $2.62 per gallon in the Marquette area.
It was the third consecutive week that the Marquette area had the highest average.
The Detroit-area's average price dropped 3 cents to $2.47 per gallon.
AAA Michigan surveys daily fuel prices at 2,800 gas stations across the state.