The cost of gas has dropped over the past two weeks, a welcome summer surprise for drivers.
The national average dropped 5 cents from $3.61 to $3.56. By fall, it could drop even further to $3.40.
"Once we get to mid-September, we'll see prices drop 10 to 20 cents a gallon,'' Tom Kloza, chief oil analyst for price tracker Gasbuddy.com, told USA Today. "Typically, demand drops the last 100 days of the year and bottoms out in December."
AAA says crude oil prices are falling, bringing down the average cost per gallon.
The low prices are a rare occurrence during the summer when prices usually spike during the vacation season.