The national average price of regular grade gasoline began the month at $2.69 a gallon, only to increase 14 cents in two weeks to $2.83 Friday.
That price is 34 cents higher than year ago prices, yet still $1.28 below record high prices set two years ago, AAA said.
RELATED: Check gas prices by zip code
The Philadelphia 5-county area gas average rose 9 cents from last Friday to $2.86 today. Diesel rose 4 cents from last Friday to $3.30.
Pennsylvania gas average rose 8 cents from last Friday to $2.85 today. Diesel rose 4 cents from last Friday to $3.24.
South Jersey gas average rose 9 cents from last Friday to $2.68 today. Diesel rose 4 cents from last Friday to $2.96.
Delaware gas average rose 9 cents from last Friday to $2.80 today. Diesel rose 9 cents from last Friday to $3.09.
National gas average rose 5 cents from last Friday to $2.83 today. Diesel rose 4 cents from last Friday to $3.10.
According to AAA, crude oil prices have generally pushed higher throughout the month and although this week prices seemed to see-saw a bit, oil continued to trade above the $80 mark.
The organization also said that stronger stocks and a weaker U.S. dollar, which dropped to its lowest this year against many currencies, in addition to China's increased oil imports, continued to contribute to oil's late-week strength.
The weakness of the U.S. dollar is viewed as perhaps the strongest factor contributing to recent growth, since oil is priced in dollars a weak dollar makes crude cheaper for those using other currencies to purchase it.
RELATED: AAA Mid-Atlantic