The highest recorded average gas price? $4.114 on July 17, 2008, according to AAA. CNBC reports that the numbers are not adjusted for inflation. You can check the average gas price by state at the AAA link above. Average gas prices in California had soared to $5.343 as of March 7, 2022, the website says. In contrast, in Wisconsin, it was $3.832.Where is the cheapest gas price in the US?
The lowest gas prices can be found in 10 Midwestern states and Maryland, with costs ranging from $3.76 to $3.92/gallon. Massachusetts ranks 7 of 50 states in terms of the biggest change in prices from one year ago. On March 21, 2021, the average cost of a gallon of gas was $2.76.