Gas prices continue to fall for another week in Arizona. Triple-A Arizona says the price of gas fell nearly three-cents a gallon to $2.80 on average. In Flagstaff, gas fell over three cents a gallon to it at three-dollars on average. Some stations are selling gas for $2.75 and lower. In Prescott, prices at the pump fell a cent-and-a-half to $3.04 a gallon. Some stations are selling gas for $2.89 and lower. Officials say prices should continue to fall for the short term as the summer begins to wind down.