US CPI falls sharply in June as energy prices tumble, but relief may be shortlived

US consumer prices recorded their biggest monthly decline in more than six years in June as a sharp drop in energy prices provided temporary relief from this year's inflation pressures.

The Consumer Price Index for All Urban Consumers (CPI-U) fell 0.4% on a seasonally adjusted basis in June after rising 0.5% in May, the Bureau of Labor Statistics (BLS) said on Tuesday.

Economists had forecast a monthly decline of 0.2%.

The decline was the largest one-month drop since April 2020, when prices fell 0.8% during the early stages of the pandemic.

On an annual basis, consumer prices increased 3.5%, down from economists' expectations of 3.8%, according to a Dow Jones survey.

Despite the softer-than-expected reading, the report is unlikely to provide lasting relief for households or eliminate the possibility of another Federal Reserve interest rate increase later this year as tensions in the Middle East resurface and oil prices rise again.

However, the S&P futures rose on the news by 0.2%. Nasdaq 100 futures rose by 1%.

Gasoline prices provide temporary relief

The decline in headline inflation was driven largely by lower fuel costs after gasoline prices retreated from multi-year highs following a fragile ceasefire between the United States and Iran last month.

The energy index fell 5.7% in June after rising 3.9% in May, 3.8% in April, and 10.9% in March.

According to the BLS, the drop in energy prices was the single largest contributor to the decline in overall consumer prices, more than offsetting increases in food and shelter costs.

However, energy prices remain significantly higher than a year ago, with the index still up 15.7% over the past 12 months.

Food prices continued to edge higher, with the food index rising 0.2% during June, matching the increase recorded in May.

Grocery prices also climbed 0.2% over the month, while food inflation stood at 3% on an annual basis.

Core inflation remains subdued

Core inflation, which excludes the more volatile food and energy categories, was unchanged in June, bringing the annual core inflation rate to 2.6%.

Economists had expected core prices to rise 0.2% during the month and 2.9% from a year earlier.

The softer core reading suggests underlying price pressures eased during the quarter, although the outlook remains uncertain.

Middle East conflict clouds outlook

The improvement in inflation may prove short-lived.

The ceasefire between the US and Iran collapsed last week after commercial vessels came under attack in the Strait of Hormuz, triggering renewed military strikes between the two countries.

Fuel prices have already begun moving higher again.

According to motorist advocacy group AAA, the national average gasoline price rose to $3.86 a gallon on Tuesday from $3.79 a week earlier.

Oil prices also climbed to a four-week high after President Donald Trump announced that the United States would reinstate a naval blockade around Iran, targeting the Strait of Hormuz, one of the world's most critical oil shipping routes.

Further increases in energy prices could quickly feed back into consumer inflation over the coming months.

The Federal Reserve left its benchmark interest rate unchanged at 3.50%-3.75% during its June meeting, although updated projections showed policymakers increasingly leaning toward another rate increase in 2026.

Before Tuesday's inflation report, futures markets tracked by CME FedWatch indicated investors were assigning roughly a 51.9% probability that the Fed would raise interest rates at its September 15-16 policy meeting.

The latest inflation data may temper those expectations somewhat, but renewed pressure on oil prices could keep policymakers cautious.