August US CPI rises 0.4 percent month over month

Proof: BLS Consumer Price Index Summary, August 2026 reports: August monthly CPI: 0.4 percent increase, seasonally adjusted.

Key number: August monthly CPI: 0.4 percent increase, seasonally adjusted

Impact: For US investors, distinguish a faster monthly inflation reading from a change in the annual inflation rate.

Watch next: The next CPI release covers September and is scheduled for October 14 at 8:30 a.m. Eastern Time.