The GasBuddy national average price of gas increased for the 1st time since October, up 0.8 cents to $2.98, but that price is still down -7.5 cents from a month ago and -7.1 cents lower than a year ago. The median U.S. gas price is $2.89 per gallon, up 4 cents from last week and about 9 cents lower than the national average. Diesel prices were down -1.8 cents to $3.472.