The U.S. inflation rate has climbed above 4% for the first time in three years, according to the Labor Department's latest Consumer Price Index report released Wednesday.
Consumer prices rose 4.2% over the 12 months ending in May, up from 3% in the previous period, marking a significant acceleration in price pressures. Energy prices were the primary driver, with gasoline costs surging 7% in May alone.
The Washington Post reported that gas prices have increased roughly 50% since January, largely due to disruptions in oil shipments through the Strait of Hormuz. Core inflation, which excludes volatile food and energy prices and is considered a key measure of underlying price trends, rose 2.9% over the past year.
Economists had broadly anticipated results similar to Wednesday's report. The May reading is the first time inflation has reached 4% or higher since May 2023, according to The Washington Post.
While inflation has fallen significantly from its pandemic-era peak of over 9%, prices remain elevated compared with pre-pandemic levels. Consumers continue to feel the impact across a range of goods and services.
Grocery costs have increased, with fresh produce and beef among categories seeing notable price gains. Service-sector inflation, including housing-related costs, also remains above 3%, indicating broader price pressures throughout the economy.
The report arrives ahead of the Federal Reserve's next policy meeting and represents an early challenge for Fed Chair Kevin Warsh, who succeeded Jerome Powell last month. According to The Washington Post, some analysts believe multiple factors are contributing to persistent inflation pressures, including tariffs, higher energy costs, and increased investment in artificial intelligence infrastructure.
Krishna Guha of Evercore ISI wrote in a recent research note that the economy is experiencing "three distinct inflation waves" tied to those factors. Economists have also expressed concern that sustained inflation could influence consumer expectations about future prices.
If households and businesses begin to expect higher inflation over the long term, those expectations can contribute to additional price increases through wage demands and pricing decisions. Joanne Hsu, director of the University of Michigan's Survey of Consumers, told The Washington Post that inflation has remained elevated long enough to affect public perceptions about whether prices will return to more normal levels.
Joe Brusuelas, chief economist at RSM, told The Washington Post he expects inflation to continue rising gradually, citing ongoing increases in energy, transportation, food, and fertilizer costs. Federal Reserve officials signaled that additional policy tightening could remain an option if inflation does not ease.
Christopher Waller said last month that he could not rule out future rate increases if price pressures persist. Recent surveys also show inflation expectations remain elevated.
The University of Michigan's consumer survey found five-year inflation expectations at 3.9% in May, while a separate survey from the Federal Reserve Bank of New York placed longer-term expectations at 3%. Much of the economic outlook now depends on whether inflationary pressures ease in the coming months and how Federal Reserve policymakers respond to the latest data.