Gas prices are steady this week after a recent rise. Triple-A says the average price in the state is $2.43 a gallon which is unchanged from a week ago. In Flagstaff the average price of gas is up cent from last week to $2.55 a gallon. A year ago, gas prices were $2.74 a gallon in Flagstaff. In Prescott, gas prices are unchanged and remain at $2.48 a gallon on average. A year ago in Prescott, the average price of gas was $2.89 a gallon. Triple-A says the recent rise in prices at the pump are due to rising crude oil prices.