Last edited Wed Nov 12, 2025, 08:56 AM - Edit history (1)
Comparing the CPI index in September over its June value, and annualizing it. Just like what is commonly done in the quarterly GDP reports.
CPI data series: https://data.bls.gov/timeseries/CUSR0000SA0
It's not comforting to me at all that the last 3 months have averaged 3.6% (annualized) for both the CPI and the core CPI. The 3 month average is my favorite gauge of RECENT inflation. The 1 month number can be dismissed as a "one off", while the 12 month average (year-over-year) has too much old data in it to be considered a good measure of RECENT inflation -- half the months are March 2025 or older (pre-Liberation Day tariffs) for example. Four of the months are Biden-era months.
Regular CPI
12 month aka year-over-year
Here's the year-over-year precentage increase numbers (probably the source of the claim that inflation has been rising over the last 5 months)
CPI data series: https://data.bls.gov/timeseries/CUSR0000SA0
Click on "More Formatting Options", and on the page that appears,
Check the checkbox: "12-Month Percent Change"
YEAR: Jan Feb Mar etc. etc.
2024: 3.1 3.2 3.5 3.4 3.2 3.0 2.9 2.6 2.4 2.6 2.7 2.9
2025: 3.0 2.8 2.4 2.3 2.4 2.7 2.7 2.9 3.0
The core CPI graphs, along with the ones above, are at: https://www.democraticunderground.com/?com=view_post&forum=1014&pid=3552722
News report from the source: https://www.bls.gov/news.release/cpi.nr0.htm
CPI data series: https://data.bls.gov/timeseries/CUSR0000SA0
CORE CPI data series: http://data.bls.gov/timeseries/CUSR0000SA0L1E
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