Arizona motorists are paying less at the pump for the eighth consecutive week.

Officials with Triple-A Arizona said Thursday that the average statewide price for unleaded regular gasoline is $3.11 a gallon. That’s down by nearly 11 cents from last week and represents the lowest pump prices this year.

This week’s national average is $3.21 per gallon, a decrease of more than 8 cents from last week.

Tucson has the lowest average gasoline price in Arizona at $2.90 a gallon while Flagstaff has the highest at $3.46.

Missouri has the lowest average gas prices in the continental U.S. at $2.96 a gallon with New York having the highest at $3.73 a gallon.