The AAA national average gas price increased 1.0 cents to $3.172 last week. This is up 5.1 cents from a month ago but -36.4 cents lower than a year ago.

• It’s been four years since the national average has been this low during the summer. This season’s lower pump prices are due to an abundance of supply in the oil market. Halfway through the year, the national gas price comparison chart shows how steady prices have remained in 2025 compared to recent years.