EAST PROVIDENCE, R.I. (WPRI) — Gas prices have risen in most places in the United States in the past week, according to AAA Northeast.

The average price per gallon in Rhode Island reached $3.29, marking an increase of a nickel. The average price in Massachusetts rose by 2 cents, matching the Ocean State at $3.29 per gallon.

The national average climbed 7 cents in the last week to $3.47 per gallon.

“Less expensive oil and fewer people fueling usually combine to lower pump prices,” AAA Northeast’s Diana Gugliotta said. “However, there is some upward pricing pressure at the moment due to the switch to summer blend gasoline, which may add about five to ten cents per gallon. But if demand and oil costs remain low, this recent price bounce may fade.”

The national average gas price is 85 cents lower than it was this time last year, and 6 cents less than it was a month ago.