That's down from a 3.8% reading in August but well above the Fed's 2% inflation target.
Consumer spending rose 0.7% in September from August, more than economists expected.
"Overall, spending remains positive, and inflation is slowing, a welcome combination for policymakers," wrote analysts at High Frequency Economics.
"We continue to expect a slower pace of growth going forward and a further easing in price pressures, which should keep the FOMC on the sidelines for the rest of 2023."
Traders continue to expect a first Fed rate cut in June of next year, based on interest-rate futures pricing.
Persons:
Ann Saphir, Christina Fincher
Organizations:
Federal Reserve, Commerce Department's, Fed, " Traders, Thomson
Locations:
U.S