The national average price of regular unleaded jumped 7 cents to $2.54 for the week, as a result of a recent trend that has been demand climb higher and supply fall, according to AAA.

The current price level is 23 cents higher than a month ago and even with a year ago for the week ending March 18.

"Since early February, gasoline demand has been steadily increasing while stocks have been gradually decreasing causing more expensive pump prices across the country," said Jeanette Casselano, AAA spokesperson. "The good news is most motorists are not paying more than they were a year ago to fill up."

The national price has moved high, and 20 states have also moved higher on the week. In various regional areas, states have seen a year-over-year variance of 25 cents cheaper to 10 cents more expensive, according to AAA data.

States with the largest weekly increases include Kentucky (16 cents), Florida (15 cents), Missouri (10 cents), Delaware (10 cents), Wisconsin (10 cents), Maryland (9 cents), Texas (9 cents), Iowa (9 cents), Colorado (9 cents), and Kansas (9 cents).

States with the least expensive gasoline include South Carolina ($2.30), Mississippi ($2.30), Arkansas ($2.30), Alabama ($2.30), Utah ($2.31), Missouri ($2.32), Texas ($2.32), Wyoming ($2.32), Louisiana ($2.33) and New Mexico ($2.33).

Meanwhile, the average price of diesel fell nine-tenths of a cent to $2.07, which is 9.8 cents higher than a year ago, according to the U.S. Energy Information Administration.