The GasBuddy national average price of gasoline increased 3.1 cents to $3.01 last week. The national avg is still down -2.6 cents vs a month ago and down -9.2 cents vs a year ago. The median U.S. gas price is $2.89 per gallon, unchanged from last week and about -12 cents lower than the national average. Diesel prices were up just 0.6 cents to $3.478.