(Rutherford County, TN) - Average gasoline prices in Tennessee have risen 8.2 cents per gallon in the last week, averaging $4.28/g today, according to GasBuddy's survey of 3,821 stations in Tennessee. Prices in Tennessee are 44.5 cents per gallon higher than a month ago and stand $1.42/g higher than a year ago. The price of diesel has risen 22.6 cents nationally in the past week and stands at $5.518 per gallon.Murfreesboro, TN Gas Price Examples (05/23/22):• COSTCO (1524 Beasie Rd) $4.14/g& .