MOSES LAKE – Washington, Adams County and nationally all saw slight decreases in gas prices this week. Grant County saw slight increases in average fuel prices this week, according to AAA.  

“The national average is nearly unchanged from a week ago, with gasoline prices continuing to hover in the same territory where they’ve spent much of 2025 so far — in the low-$3-per-gallon range — as oil prices remain anchored in the $60s,” said Patrick De Haan, head of petroleum analysis at GasBuddy. 

In Grant County, prices saw a one-cent increase this week, with the average sitting at $4.40, according to AAA. As of a month ago, prices were sitting at $4.36.  

In Adams County, prices dropped two cents from last week to now, bringing the average price to $4.31, according to AAA. As of a month ago, prices were sitting three cents higher at $4.34.  

Both Grant and Adams counties are sitting in the middle of the pack for fuel prices in the state. The most expensive county remains San Juan County at $5.26, one cent cheaper than last week, according to AAA. Asotin County remained the cheapest at $3.83, which is a 13-cent decrease from last week. 

Washington’s fuel prices also saw a slight decrease this week of one cent, bringing the average price to $4.40. As of a month ago, prices were sitting at $4.39, or one cent cheaper. As of a year ago, prices were 19 cents cheaper with prices sitting at $4.21. 

Washington remains the third most expensive state to purchase fuel in, with only California at $4.49 and Hawaii at $4.46, with higher prices in the nation. Following Washington is Oregon at $3.98, Alaska at $3.76 and Nevada at $3.73. 

The national average saw a slight decrease of one cent, bringing the average fuel price to $3.13, according to AAA. One month ago, prices were sitting at a higher average of $3.15, or two cents more expensive. As of a year ago, prices are down 28 cents from an average of $3.41. 

“The summer of lower pump prices continues, as the busy driving season nears its end. As we enter peak hurricane season, storms affecting gas production and distribution are something to keep an eye on,” said a statement from AAA. “But right now, with crude oil prices remaining steady, there’s no indication gas prices will make any drastic moves.”