Gas prices decreased again on Tuesday, with prices for a gallon of regular-grade gas at $3.441. This marks a slight decrease from Monday, when the cost was $3.445 per gallon, and Sunday, when a gallon of regular-grade gasoline was $3.449. Gas is also cheaper than a week ago when regular-grade gasoline cost $3.518 per gallon. A month ago, a gallon of regular gas was $3.626.

Mississippi is still the state with the cheapest gas in the nation, with a gallon of regular-grade gas costing $2.94. California remains the state with the most expensive gas prices, at $4.907 for a gallon of regular-grade gasoline.