According to a survey done by GasBuddy, average gasoline prices in Baltimore have risen 5.5 cents per gallon in the last week.

Baltimore gas prices are 14.4 cents per gallon higher than a month ago, yet 68.6 cents lower than a year ago, says GasBuddy.

As for national prices, GasBuddy reports the average has risen 2.1 cents per gallon in the last week, averaging $3.55/g.

Patrick De Haan, head of petroleum analysis at GasBuddy, says they should remain calm, but there are some risks.

 For now, I don’t expect much change in the toss up that has been gas prices for weeks on end. But, with gasoline demand now hitting its summer high, there remain some risks that could disturb gas prices in a significant way before summer’s end.