The GasBuddy national average gas price fell -3.8 cents to $3.08. This is down -4.4 cents from a month ago and down -18.2 cents from a year ago. The median US gas price is $2.94, down 5 cents from last week and about 14 cents lower than the national average. The national average price of diesel has increased 1.6 cents in the last week and stands at $3.648.