Gasoline prices in Florida increased 3 cents a gallon during the past week and are expected to continue rising because of higher oil prices, the AAA auto club said Tuesday.

The average price of a gallon of regular unleaded gas was $3.22, up from $3.19 a week earlier.

That was slightly below the $3.24 a gallon a month ago but far higher than the $2.31 a gallon last year, according to AAA. Mark Jenkins, a AAA spokesman, cited increased oil prices, which were up 6 percent last week.

"Based on last week's oil price hikes, drivers could soon see another round of rising prices," Jenkins said in a statement. "It's unclear how much of an increase to expect, but the last time oil prices were this high, the state average was above $3.30 per gallon."

The most-expensive gas in the state is in the West Palm Beach, Naples and Fort Lauderdale areas, while the cheapest is in Northwest Florida.