PHOENIX -- Gasoline prices at the pump around Arizona keep falling.
Officials with Triple-A Arizona said Thursday that the average statewide price for unleaded regular gasoline is $3.61 a gallon.
That's a decrease of more than 4 cents from last week.
This week's national average is $3.56 per gallon, down by more than 7 cents from last week.
Tucson has the lowest average gasoline price in Arizona at $3.38 a gallon while Flagstaff has the highest at $3.79.
South Carolina has the lowest average gas prices in the continental U.S. at $3.34 a gallon with California having the highest at $4 a gallon.