Average gas prices in North Carolina have fallen 6.4 cents per gallon in the last week, averaging $3.21/g today, according to GasBuddy’s survey of 6,092 stations in North Carolina. Prices in the state are 13.7 cents per gallon lower than a month ago and are now 121.5 cents per gallon lower than a year ago. The national average price of diesel has fallen 3.4 cents in the last week, now at $3.80 per gallon.