What year had highest gas prices?

As of my last update in October 2023, the highest average gas prices in the United States were recorded in 2022, primarily due to factors such as the global recovery from the COVID-19 pandemic, supply chain disruptions, and geopolitical tensions, notably the conflict in Ukraine. Prices peaked in June 2022, reaching over $5 per gallon in many areas. However, fluctuations in gas prices can occur frequently, so it's advisable to check the latest data for the most current information.