Arizona’s gas price average is $2.98 per gallon, which is 2.2 cents less expensive on the week. Today’s gas price average is 8.6 cents cheaper than last month, but 74.3 cents more expensive than at the same time last year. Spokeswoman for AAA Arizona, Michelle Donati, says demand for gasoline this summer remains very strong. And this, along with rising crude prices, caused prices to rise in 30 states this week. However, Arizona is among a dozen states to actually see a price drop. Tucson and Flagstaff hold the lowest and highest average price for the state at $2.71 and $3.16 per gallon.