If You’re Considering Taking A Late Summer Road Trip, The Pump Prices Of Gasoline Are On Your Side. Gas Prices Have Dropped By Double Digits In The Past Month. In Tennessee, The Average Price This Week Is At $3.22, Down Fourteen Cents Since Last Month. That Means Tennessee Has The Fourth Lowest Gas Price In The Nation. Meanwhile, Motorists In Virginia Are Also Paying An Average Of $3.22. Tammy Arnette With AAA Says The Lower Gas Prices Are Anticipated To Last A Bit Longer. The National Average Price For Gas This Week Has Continued Its Downward Trend At $3.47 A Gallon Despite Declining Domestic Refinery Production.