Gasoline prices in Arizona have fallen for the 13th consecutive week at the pumps.
Officials with Triple-A Arizona said Thursday that the average statewide price for unleaded regular gasoline is $3.40 a gallon at the pumps. That's down by more than 6 cents from last week.
This week's national average is $3.33 per gallon, a decrease of more than 3 cents from last week.
Tucson has the lowest average gasoline price in Arizona at $3.31 a gallon while Flagstaff has the highest at $3.61.
South Carolina has the lowest average gas prices in the continental U.S. at $2.92 a gallon with California having the highest at $3.73 a gallon.