NEW YORK (CNNMoney) -- Gas prices have increased 17 cents a gallon in the past week. And analysts expect prices to continue higher, following a sharp rise in the price of crude oil.
The national average price for a gallon of regular gas rose 4.6 cents to $3.33, motorist group AAA said Saturday. That marks the fourth day in a row that prices have risen, and brings the national average to the highest level since October 2008.
Gas prices were highest in Hawaii, where drivers paid $3.761 a gallon, on average. Wyoming had the lowest gas prices at roughly, $3.032 a gallon.
Tom Kloza, chief oil analyst at the Oil Price Information Service, said gas prices' 6-cent jump reported Friday was the largest one-day increase since at least 2008.
"This will definitely be the most expensive February ever," he said, adding that gas prices are typically lower during the winter months.
The jump in pump prices follows a surge in prices for crude oil, the main ingredient in gasoline. Oil prices spiked 9% last week, a week that included a high of $103 a barrel -- the highest since October 2008.
Analysts expect prices to continue rising over the next few days, since gas prices typically lag trends in the oil market.
The spike in oil last week could translate to an increase in gas prices of 37 cents per gallon in the coming weeks, according Moody's Analytics economist Chris Lafakis. He estimates that for every $1 increase in the price of oil, retail gas prices typically rise 2.5 cents a gallon.
Economists warn that an energy price shock could hurt the economic recovery in the United States. In general, every $1 increase in the price of oil costs consumers $1 billion over the course of a year.
That's concerning because consumer spending makes up the bulk of U.S. gross domestic product, the broadest measure of economic growth.
Oil prices have been driven higher by political unrest in North Africa and the Middle East, where much of the world's oil comes from. Despite the surge in prices this week, the amount of oil that has been taken off the world market has been relatively minimal.
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