Low gasoline prices in Ariz. this holiday weekend

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By Andrew Michalscheck By Andrew Michalscheck

PHOENIX (AP) -- Gasoline prices at the pump this Memorial Day holiday weekend will be at their lowest level in three years around Arizona.

Officials with Triple-A Arizona said Thursday that the average statewide price for unleaded regular gasoline is $3.45 a gallon. That's up by less than a penny from last week. 

This week's national average is $3.65 per gallon, an increase of nearly 6 cents from last week.

Tucson has the lowest average gasoline price in Arizona at $3.18 a gallon while Flagstaff has the highest at $3.67.  

South Carolina has the lowest average gas prices in the continental U.S. at $3.24 a gallon with North Dakota having the highest at $4.23 a gallon.