US inflation rises 4.2% as energy prices spike

Energy prices pushed US inflation back into uncomfortable territory in May, lifting the Consumer Price Index 4.2% from a year earlier and delivering the hottest annual reading since April 2023. The CPI-U rose 0.5% from April after a 0.6% increase the month before, a pace that shows price pressure has not fully cooled.

The Bureau of Labor Statistics said energy prices rose 3.9% in May and accounted for more than 60% of the monthly increase in all items. That matters because it shows the headline jump was not just a statistical blip: gasoline and other energy costs were doing most of the work, but they were not acting alone.

Inflation was also broadening beyond fuel. Core CPI, which strips out food and energy, rose 0.2% in May and 2.9% over the previous 12 months. Shelter rose 0.3%, food prices climbed 0.2%, food at home edged up 0.1%, and food away from home increased 0.3%. The BLS also reported gains in communication, airline fares, medical care, personal care and recreation, a sign that price strength was showing up across more parts of the economy than energy alone.

Economists had expected a 4.2% annual reading, so the headline number matched forecasts. Even so, the report underscored renewed inflation pressure after several months of moderation. One analysis put the three-month annualized inflation rate at 8.2%, the hottest such pace since September 2022, suggesting momentum had worsened even as the monthly core reading cooled.

For the Federal Reserve, the message is awkward: inflation is no longer falling in a straight line, and the strongest monthly pressure is coming from volatile energy prices just as broader categories remain sticky. That combination makes near-term interest-rate decisions more difficult, because policy makers must weigh easing inflation against the risk of tightening too little while prices are still rising faster than desired.

The report also lands in the middle of a political argument over the economy that is likely to intensify as consumers keep facing higher costs for fuel, food and shelter. A 4.2% inflation rate is still far below the peaks of 2022, but it is high enough to remind households that the cost of living remains under strain and that the fight against inflation is not over.