Consumer Price Index rises 0.4% in August as inflation persists

Prices for a wide swath of goods and services continued to climb in August, according to a report Friday that could be the deciding factor on whether the Federal Reserve raises interest rates next week.

The consumer price index rose a seasonally adjusted 0.4% for the month, putting the 12-month increase at 3.4%, the Bureau of Labor Statistics reported Friday. Both readings were in line with the Dow Jones consensus.

However, stripping out volatile food and energy prices, core CPI posted a 0.3% monthly gain, or 0.1 percentage point higher than forecast. The core annual rate came in at 2.4%, in line with the estimate.

The report is the final major inflation indicator the Fed will see before it holds its policy meeting next week, concluding Wednesday with a vote on its key interest rate.

Energy prices propelled the headline number higher, as gasoline jumped 3.9%, accounting for more than one-third of the index's gain. The energy index broadly rose 2.1% amid pressure from escalating tensions in the Middle East and was up 16.3% from a year ago.

Food prices edged 0.1% higher as food at home costs held flat. The food index accelerated 2.7% annually.

Another significant factor was a 0.3% climb in shelter costs, which had moderated over the prior two months. Transportation services saw a 0.5% increase. Used cars and trucks rose 0.4% and new vehicle prices were up 0.3%, part of what appeared to be broad-based gains for the index.