Gas prices in the Mid-Atlantic region continue to drop this week by up to four cents, according to AAA Mid-Atlantic. The drop comes even as the national average ticks upward.

The national gas price average stands at $2.53. That's up by a penny from last week, down seven cents in the last month, and up 22 cents from last year.

"Gas prices continue to trend cheaper for the majority of motorists as demand for consumer gasoline declines," said Jana L. Tidwell, manager of public and government affairs for AAA Mid-Atlantic. "While cheaper gas prices are welcomed by motorists, AAA does not expect the trend to continue, as refinery maintenance wraps-up and the summer-blend gasoline hits the pumps. Consumers can expect prices to likely increase throughout April, May and into the start of summer."

AAA expects a jump at least 20-30 cents per gallon this spring, with consumers changing their driving habits at tipping points of $2.75 or $3.00 per gallon. Changes include combining errands or trips, driving less, reducing shopping or dining out, delaying major purchases and driving more fuel-efficient cars.