The Seasonally Adjusted CPI Was Up 0.22% In April

Here are the changes in the seasonally adjusted CPI each of the last six months:

Nov  0.2805%

Dec  0.3647% 

Jan  0.4669%

Feb 0.2160%

Mar -0.0500%

April 0.2209%

 

The last decline before March 2025 was June 2024 when it was down 0.0029%.

 

See Consumer Price Index for All Urban Consumers: All Items in U.S. City Average from FRED (Federal Reserve Economic Data) compiled by the Research Division at the Federal Reserve Bank of St. Louis for data on the seasonally adjusted CPI.

 

That site shows a graph but if you click on the Download button you will get the actual numbers in Microsoft Excel.

 

The Consumer Price Index for All Urban Consumers: All Items in U.S. City Average (CPIAUCSL) was 320.321 in April and 319.615 in Mar. Since 320.321/319.615 = 1.0022, that means it was up 0.22%. If we had that every month for 12 months it would be up 2.68%.

 

It was 313.016 in April 2024. Since 320.321/313.016 = 1.0233, that means it was up 2.33% over the last 12 months.  

The non-seasonally adjusted CPI was 320.795 in April and 313.548 in April 2024. That was up 2.31%. So pretty close to the seasonally adjusted CPI. This is still above the Fed's target of 2.0% (although they prefer to use the Personal Consumption Expenditures Price Index which was 2.3% higher in Mar. 2025 than Mar. 2024).

For more information, see Annual inflation rate hit 2.3% in April, less than expected and lowest since 2021 by Jeff Cox of CNBC. Excerpts:

"The consumer price index, which measures the costs for a broad range of goods and services, rose a seasonally adjusted 0.2% for the month, putting the 12-month inflation rate at 2.3%, its lowest since February 2021, the Bureau of Labor Statistics said. The monthly reading was in line with the Dow Jones consensus estimate while the 12-month was a bit below the forecast for 2.4%.

Excluding volatile food and energy prices, the core CPI also increased 0.2% for the month, while the year-over-year level was 2.8%. The forecast was for 0.3% and 2.8%, respectively."

The article also discusses what types of products are going up in price and what is going down. There is a graph of the monthly year-over-year percent change in prices and core prices going back almost 4 years.

 

Other related links:

 

Consumer Price Index for All Urban Consumers: All Items Less Food and Energy in U.S. City Average (CPILFESL) This is also from from FRED (Federal Reserve Economic Data), compiled by the Research Division at the Federal Reserve Bank of St. Louis. It has the seasonally adjusted core CPI.

 

Consumer Price Index Data from 1913 to 2025

 

Personal Consumption Expenditures Price Index 

 

The Bureau of Labor Statistics makes seasonal adjustments. See Consumer Price Index Summary.

 

The table below has the annual inflation rate since 1914 in the columns labeled CPI %Ch. or CPI percentage change. It is from Consumer Price Index Data from 1913 to 2025 and is not seasonally adjusted. It is also the December to December change in the CPI. That site also looks at how the 12 month average for the CPI changed from one year to the next.

 

Year	CPI %Ch.		Year	CPI %Ch.		Year	CPI %Ch.		Year	CPI %Ch.
1914	1.0		1944	2.3		1974	12.3		2004	3.3
1915	2.0		1945	2.2		1975	6.9		2005	3.4
1916	12.6		1946	18.1		1976	4.9		2006	2.5
1917	18.1		1947	8.8		1977	6.7		2007	4.1
1918	20.4		1948	3.0		1978	9.0		2008	0.1
1919	14.5		1949	-2.1		1979	13.3		2009	2.7
1920	2.6		1950	5.9		1980	12.5		2010	1.5
1921	-10.8		1951	6.0		1981	8.9		2011	3.0
1922	-2.3		1952	0.8		1982	3.8		2012	1.7
1923	2.4		1953	0.7		1983	3.8		2013	1.5
1924	0.0		1954	-0.7		1984	3.9		2014	0.8
1925	3.5		1955	0.4		1985	3.8		2015	0.7
1926	-1.1		1956	3.0		1986	1.1		2016	2.1
1927	-2.3		1957	2.9		1987	4.4		2017	2.1
1928	-1.2		1958	1.8		1988	4.4		2018	1.9
1929	0.6		1959	1.7		1989	4.6		2019	2.3
1930	-6.4		1960	1.4		1990	6.1		2020	1.4
1931	-9.3		1961	0.7		1991	3.1		2021	7.0
1932	-10.3		1962	1.3		1992	2.9		2022	6.5
1933	0.8		1963	1.6		1993	2.7		2023	3.4
1934	1.5		1964	1.0		1994	2.7		2024	2.9
1935	3.0		1965	1.9		1995	2.5
1936	1.4		1966	3.5		1996	3.3
1937	2.9		1967	3.0		1997	1.7
1938	-2.8		1968	4.7		1998	1.6
1939	0.0		1969	6.2		1999	2.7
1940	0.7		1970	5.6		2000	3.4
1941	9.9		1971	3.3		2001	1.6
1942	9.0		1972	3.4		2002	2.4
1943	3.0		1973	8.7		2003	1.9