Tennessee Drivers Are Seeing A Drop In Gas Prices Just In Time For The Holiday Travel Rush. The Statewide Average Is Now $2.78 Cents Per Gallon, Down Seven Cents From Last Week. AAA Says Prices Are 33 Cents Lower Than Last Year, Saving Drivers About $6.00 Per Fill-Up. More Than 1.5 Million Tennesseans Are Expected To Hit The Road For The Fourth Of July. National Prices Also Fell To T$3.18 Per Gallon.