The Consumer Price Index for All Urban Consumers (CPI-U) increased 0.1 percent in September on a seasonally adjusted basis after rising 0.2 percent in August, the U.S. Bureau of Labor Statistics reported today. Over the last 12 months,…
Source: U.S. Bureau of Labor Statistics5 min read
Historical releaseThe figures below describe the original reporting period. They are not today’s rates or a current economic forecast.Today’s market brief →
Historical release narrative reproduced from the official public-domain source. Statistical tables, standard technical appendices, administrative material and attendance rosters are omitted; formatting is adapted for reading. Figures retain the release's historical context and may have been revised. Consult the linked source for the complete document.
The Consumer Price Index for All Urban Consumers (CPI-U) increased 0.1 percent in September on a seasonally adjusted basis after rising 0.2 percent in August, the U.S. Bureau of Labor Statistics reported today. Over the last 12 months, the all items index rose 2.3 percent before seasonal adjustment.
The shelter index continued to rise and accounted for over half of the seasonally adjusted monthly increase in the all items index. The energy index declined 0.5 percent in September after rising in August. The food index was unchanged in September, as an increase in the index for food away from home offset a decline in the food at home index.
The index for all items less food and energy rose 0.1 percent in September, the same increase as in August. The shelter index increased 0.2 percent, and the indexes for apparel, motor vehicle insurance, recreation, and airline fares also rose. The medical care index increased as well, though its components were mixed. The index for used cars and trucks, which fell sharply, and the new vehicles index were among the indexes that declined in September.
The all items index rose 2.3 percent for the 12 months ending September, a smaller increase than the 2.7-percent increase for the 12 months ending August. The energy index rose 4.8 percent over the last year, a notably smaller increase than the 10.2-percent increase for the 12 month period ending August. The index for all items less food and energy rose 2.2 percent for the 12 months ending September and the food index increased 1.4 percent; these were both the same rate of increase as for the 12 months ending August.
Seasonally adjusted changes from preceding month Un- adjusted 12-mos. Mar. Apr. May June July Aug. Sep. ended 2018 2018 2018 2018 2018 2018 2018 Sep. 2018
Food
The food index was unchanged in September. The index for food at home, which was unchanged in August, fell 0.1 percent in September with major grocery store food group indexes mixed. The index for meats, poultry, fish, and eggs fell 1.0 percent in September, with all its major component indexes falling. The fruits and vegetables index also fell, declining 0.5 percent. The index for dairy and related products declined 0.3 percent.
The index for cereals and bakery products increased 0.6 percent, as did the index for nonalcoholic beverages. The index for other food at home rose 0.2 percent. The index for food away from home rose 0.2 percent in September, the same increase as in August.
The food index rose 1.4 percent over the last 12 months, with the index for food away from home rising 2.6 percent and the food at home index increasing 0.4 percent. All the major grocery store food group indexes rose modestly over the period, except for the index for dairy and related products, which was unchanged.
Energy
The energy index declined 0.5 percent in September after rising 1.9 percent in August. After rising 3.0 percent in August, the gasoline index declined slightly in September, falling 0.2 percent. (Before seasonal adjustment, gasoline prices increased 0.3 percent in September.) The electricity index fell 0.5 percent in September after rising in August, and the index for natural gas, which also increased in August, fell 1.7 percent in September.
The energy index increased 4.8 percent over the past year. The index for fuel oil rose sharply, increasing 23.4 percent. The gasoline index rose 9.1 percent over the last 12 months, while the electricity and natural gas indexes both declined, falling 1.2 percent.
All items less food and energy
The index for all items less food and energy increased 0.1 percent in September. The shelter index rose 0.2 percent in September following a 0.3-percent increase in August. The indexes for rent and owners' equivalent rent both increased 0.2 percent in September, smaller increases than in August.
The index for apparel rose 0.9 percent in September following declines in each of the prior 3 months. The motor vehicle insurance index rose 0.8 percent. The recreation index advanced 0.3 percent in September as the index for recreation services increased 0.7 percent. The medical care index rose 0.2 percent in September after declining in July and August. The index for physicians' services rose 0.3 percent, but the indexes for hospital services and for prescription drugs both declined. The index for airline fares continued to increase, advancing 1.0 percent. The indexes for household furnishings and operations, communication, education, alcoholic beverages, personal care, and tobacco all also rose in September.
The index for used cars and trucks fell sharply in September, declining 3.0 percent following increases in each of the last 3 months. The new vehicles index declined slightly in September, falling 0.1 percent.
The index for all items less food and energy rose 2.2 percent over the past 12 months, the same increase as for the 12 months ending August. The shelter index increased 3.3 percent over the last 12 months, and the medical care index rose 1.7 percent. The indexes for used cars and trucks, apparel, and airline fares all declined over the past year.
Not seasonally adjusted CPI measures
The Consumer Price Index for All Urban Consumers (CPI-U) increased 2.3 percent over the last 12 months to an index level of 252.439 (1982-84=100). For the month, the index increased 0.1 percent prior to seasonal adjustment.
The Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W) increased 2.3 percent over the last 12 months to an index level of 246.565 (1982-84=100). For the month, the index increased 0.1 percent prior to seasonal adjustment.
The Chained Consumer Price Index for All Urban Consumers (C-CPI-U) increased 2.0 percent over the last 12 months. For the month, the index rose 0.1 percent on a not seasonally adjusted basis. Please note that the indexes for the past 10 to 12 months are subject to revision.
Archived Nov 11, 2026. Source reuse policy. Formatting has been adapted for reading; the source’s conclusions remain attributed to its publisher.
MortgageRates.news analysis · Historical context
The mortgage market around this release
This original analysis is separate from the source article. It compares observed benchmarks around ; historical averages and yields are not current mortgage offers.
Read consumer inflation on a consistent basis
The Consumer Price Index measures changes in prices paid by urban consumers for a basket of goods and services. Check the index, reference month and seasonal adjustment before comparing figures. A monthly change and a twelve-month change describe different periods; the all-items index and the measure excluding food and energy cover different baskets. Consumer inflation informs the wider policy discussion, but the benchmark comparison below does not isolate this release from other information arriving during the month. BLS Consumer Price Index.
Nearest published observation on or before each target date
Calendar references, not an intraday reaction. A same-day market observation may have been published after a morning release. These figures do not show what was known at its exact publication time. One basis point (bp) is 0.01 percentage point; changes use the actual dated observations shown.
Dots show published observations only. Missing dates remain blank, with no interpolation. The series have different publication schedules and measure different markets.
What that benchmark difference would mean for a $300,000 loan
At the publication reference$1,592.18/month
4.90% · Oct 11, 2018
At the later reference$1,599.48/month
4.94% · Nov 8, 2018
The illustrative principal-and-interest payment is $7.30 higher per month. This holds the loan amount and term constant to show the arithmetic effect of the benchmark difference.
Assumptions: two separate hypothetical $300,000 loans, each fully amortizing over 30 years with 360 monthly payments and its stated fixed interest rate. Excludes points, lender fees, taxes, insurance, association charges and other costs. PMMS is a national average, not an APR or a personalized rate offer. These are not two payments on one existing loan.
Sources, historical coverage and calculation limits
Freddie Mac Primary Mortgage Market Survey®: available observations from Apr 2, 1971 through Nov 5, 2026. Cached history snapshot. History retrieved or verified Nov 11, 2026.
U.S. Department of the Treasury: available observations from Jan 4, 2016 through Nov 10, 2026. Cached history snapshot. History retrieved or verified Nov 11, 2026.
The 30-day comparisons use calendar days. Each cell selects the last published observation on or before its target; no rates are synthesized for missing dates. Gaps greater than seven days for daily Treasury data or fourteen days for weekly mortgage data are marked unavailable. Forward comparisons require the date to have arrived and source coverage to extend through it.
Historical files may contain revisions and do not reconstruct precisely what every market participant knew at the time. Freddie Mac changed its PMMS collection methodology in November 2022. Cross-period comparisons should account for that change. These windows include other news and cannot establish causation or forecast the next rate move.