The Seasonally Adjusted CPI Was up 0.64% in April

Here are the changes in the seasonally adjusted CPI for the six months ending in March: 

Sept. 0.2951% (There was no report for October due to the government shutdown)

Nov. 0.2523% (change from Sept)

Dec. 0.2978%

Jan. 0.1708%

Feb. 0.2670

March 0.865% 

 

The last decline was June 2024 when it was -0.042%.

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 332.407 in April and 330.293 in March. Since 332.407/330.293 = 1.0064, that means it was up 0.64%. If we had that every month for 12 months it would be up 7.96%.

It was 320.302 in April 2025. Since 332.407/320.302 = 1.0378, that means it was up 3.78% over the last 12 months.

The non-seasonally adjusted CPI was 333.020 in April and 320.795 in April 2025. That was up 3.81%. 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 3.5% higher in March 2026 than March 2025).

For more information see Consumer prices rose 3.8% annually in April, the highest since May 2023 by Jeff Cox of CNBC. Excerpt:

"Prices that consumers pay for a wide range of goods and services increased at a faster-than-expected pace in April, as another burst in energy prices raised further concerns about inflation’s impact on the U.S. economy.

The consumer price index rose at a seasonally adjusted 0.6% for the month, putting the one-year pace at 3.8%, the Bureau of Labor Statistics reported Tuesday. The monthly rate was as forecast, but the annual rate was 0.1 percentage point above the Dow Jones consensus.

Excluding food and energy, the core CPI increased 0.4% and 2.8%, respectively, keeping inflation well above the Federal Reserve’s 2% goal as the monthly rate was the highest since January 2025. Fed officials consider core a better indicator of longer-term inflation trends.

The annual headline inflation rate was the highest since May 2023 and was up half a percentage point from March. Core inflation rose 0.2 percentage point annually."

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.   

Related material: 

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 2026 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		1944	2.3		1974	12.3		2004	3.3
1915	2		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		1978	9		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		1981	8.9		2011	3
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		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		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
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		1994	2.7		2024	2.9
1935	3		1965	1.9		1995	2.5		2025	2.7
1936	1.4		1966	3.5		1996	3.3
1937	2.9		1967	3		1997	1.7
1938	-2.8		1968	4.7		1998	1.6
1939	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		1972	3.4		2002	2.4
1943	3		1973	8.7		2003	1.9

 

Here is a timeline graph of this data: