Average gasoline prices in Baltimore have risen 0.3 cents per gallon in the last week, averaging $4.46 per gallon Monday, May 18, according to GasBuddy's survey of 663 stations in Baltimore. Prices in Baltimore are 45.4 cents per gallon higher than a month ago and stand $1.44 per gallon higher than a year ago. The national average price of diesel has decreased 0.5 cents compared to a week ago and stands at $5.618 per gallon.
According to GasBuddy price reports, the cheapest station in Baltimore was priced at $4.15 per gallon Sunday, May 17, while the most expensive was $4.79 per gallon, a difference of 64.0 cents per gallon. The lowest price in the state Sunday was $3.75 per gallon while the highest was $5.49 per gallon, a difference of $1.74 per gallon.
The national average price of gasoline has fallen 1 cent per gallon in the last week, averaging $4.47 per gallon Monday. The national average is up 45.2 cents per gallon from a month ago and stands $1.33 per gallon higher than a year ago, according to GasBuddy data compiled from more than 11 million weekly price reports covering over 150,000 gas stations across the country.
Historical gasoline prices in Baltimore and the national average going back five years:
May 18, 2025: $3.02 per gallon (U.S. average: $3.14 per gallon)
May 18, 2024: $3.51 per gallon (U.S. average: $3.58 per gallon)
May 18, 2023: $3.43 per gallon (U.S. average: $3.52 per gallon)
May 18, 2022: $4.59 per gallon (U.S. average: $4.58 per gallon)
May 18, 2021: $3.01 per gallon (U.S. average: $3.04 per gallon)
Neighboring areas and their current gas prices:
Maryland: $4.45 per gallon, down 0.3 cents per gallon from last week's $4.45 per gallon.
Washington, D.C.: $4.62 per gallon, up 0.4 cents per gallon from last week's $4.62 per gallon.
York, Pa.: $4.50 per gallon, up 0.3 cents per gallon from last week's $4.49 per gallon.
“The national average price of gasoline spent much of last week drifting lower after jumping early in the week as oil prices softened on hopes that diplomatic progress between the U.S. and Iran could help ease supply concerns,” said Patrick De Haan, head of petroleum analysis at GasBuddy. “However, that optimism faded after President Trump’s meeting with China’s Xi Jinping failed to produce a breakthrough on Iran, while renewed warnings toward Tehran have helped push oil prices higher again. With global oil inventories continuing to trend toward historically tight levels, markets remain extremely sensitive to geopolitical developments and potential supply disruptions. As a result, gasoline and diesel prices are likely to remain volatile, and with Memorial Day approaching, any sustained increase in oil prices could begin pushing retail fuel prices higher again in the weeks ahead.”
