NEW YORK (CNNMoney) -- Gasoline prices dipped for a second straight day on Wednesday, providing a reprieve to motorists after a 20-day streak of gains, even though they're expected to rise again.
The nationwide average price for a gallon of regular unleaded gasoline slipped 0.3 cent to $3.533 on Wednesday, reported the motorist group AAA.
The nation's most expensive gas is in Hawaii, with a statewide average price of $4.029, and the cheapest is in Wyoming, with an average of $3.287, according to AAA.
The ongoing march of higher prices started in the last week of February and dragged through much of March. The climb in gas prices resulted from an oil rally fueled by political turmoil in the Middle East and North Africa.
As of Tuesday, oil prices have fallen more than 7% since the 9.0-magnitude earthquake struck last week. But they edged up again on Wednesday, settling up 80 cents per barrel to $97.98.
There's still room to rise for gas prices, as the U.S. shifts into the spring and summer driving season.
"You will see a mixed bag in the next week or so," said Tom Kloza, chief oil analyst at the Oil Price Information Service. "Prices in much of the country will backtrack a bit."
However, this might just be a blip. Kloza believes that gas prices could peak this spring in the range of $3.50 to $3.75 per gallon.
"It's too early but I don't think we've seen the peak yet," he said. "I think that this week is reminding people that there is a downside risk in owning oil or gasoline futures."
As Elon Musk cancels the latest launch of a SpaceX rocket, he's also got some "horrible nightmares" to contend with. More
Tech fans are already excited about the launch of Apple's iPhone 6 next month. There's now a report suggesting that the iWatch could be coming too. Wall Street is pleased. More
Utah State professor Michael Glauser cycled 4,000 miles this summer, visiting 100 entrepreneurs across the country. Here's a snapshot of how they grew their businesses. More
Mary Fallon, from Durham, Maine, is a mother of three children, two dogs, 25 chickens and a flock of 22 sheep. Here are journal entries from a day in her life. More