The average retail price for a gallon of regular gasoline dropped seven cents during the past week to an average of $2.03 on Sunday in South Carolina, according to GasBuddy's daily survey of 3,028 gas outlets in the Palmetto State.
The national average fell 7.7 cents per gallon during the same period to $2.19, according to gasoline price website GasBuddy.com.
Gasoline prices are down $1.08 cents in South Carolina from one year ago and are 45.2 cents per gallon lower than a month ago.
The national average has decreased 52.8 cents per gallon during the past month and stands nearly $1.13 cents per gallon lower than one year ago.
"As we've welcomed in the new year, gas prices have stayed at their bargain basement levels in most states, with just a few seeing minor gas tax increases," said Patrick DeHaan, senior petroleum analyst with GasBuddy. "2015 will be a far better year at the pump than what we saw in 2014, and motorists will fare substantially better, shelling out $96 billion less this year at the gas pump, with motorists in most states seeing far more $2 gas than $3 gas."
Diesel prices have also fallen by about 44 cents a gallon during the past month.
"I see diesel prices declining another 35-50 cents a gallon nationally over the next month or so," DeHaan said.
Missouri reported the lowest price for gasoline at $1.85 a gallon. Hawaii has the highest price at $3.47 a gallon.
GasBuddy will release its Fuel Outlook report for 2015 on Tuesday.
Reach Warren L. Wise at 937-5524 or twitter.com/warrenlancewise.