The annual inflation rate rose to 8.6% in May, the Labor Department said, after easing in April.
The rising cost of living has been squeezing households and putting pressure on policymakers to bring the issue under control.
The US central bank has been raising interest rates since March.
Analysts had hoped that the moves were starting to work to cool economic activity, easing the price pressures. But the conflict between Russia and Ukraine, which has driven up the price of oil and commodities like wheat as it disrupts exports from the two countries, has made tackling the problem more difficult.
Food prices were up more than 10% last month compared to May 2021, while energy surged more than 34%.
But Friday’s report showed the increases continue to spread throughout the economy, pushing the cost of everything from airline tickets and clothing to medical services higher.
“So much for the idea that inflation has peaked. Consumer prices blew past expectations, and not in a good way with the 8.6% annual increase the fastest in more than 40 years,” said Greg McBride, chief financial analyst at Bankrate.com.
“Worse the increases were nearly ubiquitous. Just no place to hide.”
The US has been grappling with rising prices since last year, when an unexpectedly strong economic rebound from the shock of the pandemic, driven by large doses of US government spending, including direct cheques to households, overwhelmed supplies, prompting companies to raise prices.
Now the war in Ukraine has spread the problem around the world, with Covid-related shutdowns in China this spring contributing.
As the rising costs hit household purchasing power and prompt a pullback in spending, officials are warning that growth in many countries is at risk of a sharp downturn.
“The war in Ukraine, lockdowns in China, supply-chain disruptions, and the risk of stagflation are hammering growth. For many countries, recession will be hard to avoid,” World Bank President David Malpass said this week.
US stock markets fell in the wake of the inflation reports, with all three major indexes dropping more than 2%. The falls added to weeks of declines in US shares, as investors become nervous about the path for the economy.
“Even if inflation peaks soon, it’s unlikely to decelerate quickly.” said Richard Flynn, managing director of Charles Schwab UK. “High prices may put pressure on consumer spending into the medium term.
“Add ongoing supply-chain problems and the economic impact of Russia’s invasion of Ukraine to the threat of inflation, and it’s easy to see why fears of a downturn have risen swiftly.”
Polls show a majority of Americans see inflation as the top problem facing the country. Consumer sentiment has plunged and US President Joe Biden’s approval ratings have sunk as Republicans criticize him over the issue.
Over the month, prices gained 1%, driven by the rising cost of petrol, which has hit new records in the US, approaching an average of nearly $5 a gallon.
SOURCE: NEWS AGENCIES