The GasBuddy national average price of gas fell -0.9 cents to $3.08 last week. This is up 6.5 cents from a month ago and 1.8 cents lower than a year ago. The median gas price of $2.99 remains unchanged and is -10 cents below the average. The national average price of diesel has increased 4.4 cents in the last week and stands at $3.650 per gallon.