The national average for a gallon of regular unleaded gasoline dropped more than 2.5 cents Thursday morning to $3.599, according to the AAA Daily Fuel Gauge Report.
That's about 21 cents lower than it was a month ago.
While some states (like California, Alaska and Hawaii) are still paying more than $4 a gallon, the pain at the pump is much less severe for drivers in states where the average price is way under the national average.
Here's a look at the 10 states with the cheapest gas prices, according to AAA's daily report, with the price of a gallon of regular unleaded listed:
South Carolina $3.336