evidence: The current national average of $3.19 a gallon is higher than the average cost of gas since 2018: $3.05 a gallon. [...] US gas prices per gallon have wavered between a national average of $1.84 and $4.99 since 2018. Americans saw the lowest annual average in 2020, when the average cost for a gallon of gas was $2.19. Fast-forward three years and gas is running an average of $3.39 so far in 2024.