Consumer prices rose 2.9% in August compared to a year ago

The claim that consumer prices rose 2.9% in August compared to a year ago is supported by several reliable sources published around early September 2025. Investing.com and CNBC both explicitly state a 2.9% annual increase for August. Reuters also confirms a notable rise in consumer prices in August, describing it as more than expected and the largest annual increase in seven months, which aligns with the 2.9% figure. NPR similarly reports inflation climbing to around 2.9% year-over-year.investing.cominvesting.comU.S. consumer prices rise by 2.9% year-on-year in August By Investing.comcnbc.comcnbc.comConsumer prices rose at annual rate of 2.9% in August, as weekly jobless claims...+2 more

However, there are some minor discrepancies: Business Insider mentions a 2.5% rise, which is slightly lower, and older sources from previous years show different inflation rates but are not relevant for the current August 2025 data. The slight variation between 2.5% and 2.9% could be due to timing of data releases or different inflation measures (headline CPI vs core CPI).businessinsider.combusinessinsider.comInflation in August: Consumer Price Index Rose 2.5%upi.comupi.comAugust U.S. inflation up 0.6% but annual rate down from a year ago+2 more

Overall, the evidence strongly supports that consumer prices increased roughly 2.9% year-over-year in August 2025, making the claim mostly true with minor variations in reported numbers.