CONCORD, N.H. (AP) - The average price of a gallon of gas stayed the same in the past week in New Hampshire, at $3.50 per gallon.

That's according to the gasoline price website, which surveyed 875 gas stations in the state.

The price as of Sunday is 3.6 cents cheaper than the same day a year ago, and nearly a penny more than last month.

Nationally, the average went up 1.3 cents per gallon in the past week to $3.55. The national average is 3.1 cents cheaper than the same day last year, but 7.4 cents more than a month ago.

GasBuddy operates and more than 250 other websites that track prices at more than 140,000 gas stations in the United States and Canada