Inflation climbs in September as gas prices surge

In September, inflation surged to a four-month high, driven by soaring gas prices linked to the ongoing Iran war, according to federal data released on Wednesday. Prices increased by 3.7% compared to a year ago, a slight rise from the 3.4% annual inflation rate reported in the previous month. This marked a notable departure from a 2.4% inflation rate in February, prior to the war's outbreak.

Gas prices alone accounted for over half of the overall price increase, rising more than 9% from August. Shelter prices and food prices also rose, but food prices remained relatively stable, with annual inflation for food at 2.5%, below the overall inflation rate. The conflict in the Middle East had been a significant factor in pushing up fuel prices, catapulting inflation to a three-year peak in May.

However, inflation eased slightly in the summer after a temporary ceasefire was agreed upon between the U.S. and Iran, but hostilities resumed in August, leading to continued disruptions in oil exports from the Gulf and higher shipping costs. The national average gas price remained above $4.30 a gallon, according to AAA data, reflecting a 66% increase since the Iran war began.

Despite these economic challenges, GDP growth remained robust, with a three-month increase ending in June, defying fears of a downturn triggered by the Iran war. Consumer spending rose 0.6% in August, the largest monthly increase since March 2025. However, hiring slowed in September, with only 29,000 jobs added, below expectations.

Fed Chair Kevin Warsh acknowledged that inflation is too high, having been a persistent issue for too long, and the Federal Reserve raised interest rates by a quarter of a percentage point last month, marking the first increase since 2023. Market sentiment suggests a nearly 25% chance of another rate hike at the next Fed meeting on October 28, just before the midterm elections.