Annual updates to CPI data

Bureau of Labor Statistics

 

Each year with the release of the January Consumer Price Index (CPI), seasonal adjustment factors are recalculated to reflect price movements from the just-completed calendar year. These revised seasonal adjustment factors and the end-of-year supplemental files will be released on February 12, 2025, at 8:30 AM Eastern Time, in conjunction with the release of CPI data for January 2025. With the release of these files, the seasonal factors and selected end-of-year materials will also be available in the BLS API and CPI text files. These files will be available for all U.S. city average CPI-U data and a subset of U.S. city average CPI-W data. To ease the transition, BLS posted last year's end-of-year files. In addition, last year's data are also loaded into the BLS API. See our new aspect metadata files factsheet and our seasonal adjustment notice for additional information. If you have any questions, please contact us by email or by calling us at (202) 691-7000.

 

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