RUTHERFORD COUNTY, TN - Average gasoline prices in Tennessee have risen 2.1 cents per gallon in the last week, averaging $3.23/g today, according to GasBuddy's survey of 3,821 stations in Tennessee. Prices in Tennessee are 11.2 cents per gallon higher than a month ago and stand 1.8 cents per gallon higher than a year ago. In Rutherford County, the average price at the pump for regular unleaded is $3.26 per gallon, which is .12-cents higher than prices last Monday. Currently, prices in Rutherf ...