Gas, diesel hit new records
Average price of unleaded gasoline and diesel fuel reach new highs.
NEW YORK (CNNMoney.com) -- Fuel prices rose to new record highs overnight, a nationwide survey of gas station credit card swipes showed Wednesday.
The average price of regular unleaded rose five-tenths of a cent to a fresh all-time high of $4.114 a gallon, according to a daily survey from motorist advocacy group AAA.
Gas prices have surged 35% in the past year and have weighed on consumers and businesses alike. High fuel prices are one of the factors squeezing Americans, causing them to limit vacation travel and cut back on driving.
Businesses and local governments have also had to change their operations to deal with the high costs.
The average price of diesel fuel, which is used to power most trucks and commercial vehicles, climbed nine-tenths of a cent to a record $4.839 a gallon, according to AAA. That's 64% higher than last year when diesel was cheaper than gas.
Gas prices are most expensive in Alaska, where prices average $4.634 a gallon. California come in second, with drivers paying $4.505 on average.
South Carolina has the cheapest prices for regular unleaded. Gas prices average $3.912 a gallon there.
Hawaii is the state with the highest diesel prices, while diesel is cheapest in Montana. 
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