US consumer price index (CPI-U), monthly, 1999-2026

Monthly Consumer Price Index for All Urban Consumers (CPI-U), all items, U.S. city average, 1982-84 = 100, from 1999-01 to 2026-09, in both not seasonally adjusted and seasonally adjusted form. 332 monthly observations. Figures are from the U.S. Bureau of Labor Statistics CPI release (retrieved through FRED, Federal Reserve Bank of St. Louis, series CPIAUCNS and CPIAUCSL). The original statistics are a U.S. federal government work in the public domain. The ClarionBrief economy desk compiles this file for its US inflation tracker, which carries the latest month's reading, a chart that can be embedded, and notes on how to read the index. The tracker is updated each month when BLS publishes new figures; this record holds a dated snapshot. Columns: month (YYYY-MM), cpi_u_not_seasonally_adjusted, cpi_u_seasonally_adjusted (index, 1982-84 = 100). Suggested citation: ClarionBrief (2026). US consumer price index (CPI-U), monthly, 1999-2026 [Data set]. Source: U.S. Bureau of Labor Statistics. Available at https://clarionbrief.com/data/us-inflation-tracker/