The Consumer Price Index for All Urban Consumers (CPI-U) increased 0.3 percent in August on a seasonally adjusted basis after rising 0.5 percent in July, the U.S. Bureau of Labor Statistics reported today. Over the last 12 months, the…
Source: U.S. Bureau of Labor Statistics7 min read
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The Consumer Price Index for All Urban Consumers (CPI-U) increased 0.3 percent in August on a seasonally adjusted basis after rising 0.5 percent in July, the U.S. Bureau of Labor Statistics reported today. Over the last 12 months, the all items index increased 5.3 percent before seasonal adjustment.
The indexes for gasoline, household furnishings and operations, food, and shelter all rose in August and contributed to the monthly all items seasonally adjusted increase. The energy index increased 2.0 percent, mainly due to a 2.8-percent increase in the gasoline index. The index for food rose 0.4 percent, with the indexes for food at home and food away from home both increasing 0.4 percent.
The index for all items less food and energy rose 0.1 percent in August, its smallest increase since February 2021. Along with the indexes for household operations and shelter, the indexes for new vehicles, recreation, and medical care also rose in August. The indexes for airline fares, used cars and trucks, and motor vehicle insurance all declined over the month.
The all items index rose 5.3 percent for the 12 months ending August, a smaller increase than the 5.4-percent rise for the period ending July. The index for all items less food and energy rose 4.0 percent over the last 12 months, also a smaller increase than the period ending July. The energy index rose 25.0 percent over the last 12 months, and the food index increased 3.7 percent; both were larger than the increases for the 12-month period ending July.
Seasonally adjusted changes from preceding month Un- adjusted 12-mos. Feb. Mar. Apr. May June July Aug. ended 2021 2021 2021 2021 2021 2021 2021 Aug. 2021
Food
The food index increased 0.4 percent in August after larger increases in recent months. The food at home index increased 0.4 percent over the month as four of the six major grocery store food group indexes rose. The index for nonalcoholic beverages increased 1.0 percent in August, its third consecutive monthly increase. The index for meats, poultry, fish, and eggs rose 0.7 percent over the month as the beef index rose 1.7 percent. The index for other food at home rose 0.6 percent in August after increasing 0.8 percent in July. The index for fruits and vegetables rose 0.2 percent in August after declining in July.
The index for dairy and related products declined in August, falling 1.0 percent after rising in each of the previous 4 months. The index for cereals and bakery products was unchanged in August after increasing 1.2 percent in July.
The food away from home index rose 0.4 percent in August after increasing 0.8 percent in July. The index for limited service meals rose 0.8 percent in August, and the index for full service meals increased 0.6 percent. These increases offset a sharp decline in the index for food at employee sites and schools, which fell 17.0 percent in August.
The food at home index rose 3.0 percent over the past 12 months. Five of the six major grocery store food group indexes increased over the period. The largest increase was the index for meats, poultry, fish, and eggs, which increased 8.0 percent as the index for beef rose 12.2 percent over the year. The only group to decline was dairy and related products, which fell 0.5 percent over the last 12 months. The index for food away from home rose 4.7 percent over the last year. The index for limited service meals rose 6.9 percent over the last 12 months, and the index for full service meals rose 4.9 percent, while the index for food at employee sites and schools declined sharply.
Energy
The energy index rose 2.0 percent in August, its third consecutive monthly increase. The gasoline index rose 2.8 percent in August after increasing 2.4 percent in July. (Before seasonal adjustment, gasoline prices rose 0.7 percent in August.) The electricity index increased 1.0 percent in August following a 0.4-percent increase the prior month. The index for natural gas also increased in August, rising 1.6 percent; this was its seventh consecutive monthly increase.
The energy index rose 25.0 percent over the past 12 months as all the major energy component indexes increased. The gasoline index rose 42.7 percent over the last year. The index for electricity increased 5.2 percent, its largest 12-month increase since the period ending March 2014. The index for natural gas rose 21.1 percent over the last 12 months, the largest increase since the period ending August 2008.
All items less food and energy
The index for all items less food and energy rose 0.1 percent in August. Indexes that increased over the month include the index for household furnishings and operations, which increased 1.3 percent as the indexes for furniture and bedding and for appliances rose. The shelter index increased in August, rising 0.2 percent. The indexes for rent and owners’ equivalent rent both rose 0.3 percent over the month, while the index for lodging away from home declined 2.9 percent.
The index for new vehicles continued to rise in August, increasing 1.2 percent after rising 1.7 percent in July. The recreation index rose 0.5 percent in August after increasing 0.6 percent the prior month. The index for medical care rose 0.2 percent over the month; its component indexes were mixed. The hospital services index rose 0.9 percent over the month, while the physicians’ services index was unchanged and the prescription drugs index declined 0.4 percent. The indexes for personal care, for communication, and for apparel all increased in August.
In contrast to these increases, several indexes declined in August. The index for airline fares fell sharply, decreasing 9.1 percent over the month. The index for used cars and trucks declined 1.5 percent in August, ending a series of five consecutive monthly increases. The index for motor vehicle insurance fell 2.8 percent in August, the same decline as in July.
The index for all items less food and energy rose 4.0 percent over the past 12 months. The index for used cars and trucks increased 31.9 percent over the span. The index for new vehicles rose 7.6 percent, the largest 12-month increase since the period ending June 1981. The shelter index increased 2.8 percent over the last 12 months, and the medical care index rose 0.4 percent. The index for physicians’ services rose 3.9 percent and the index for hospital services increased 3.5 percent. The prescription drugs index fell 2.7 percent, one of the few indexes to show a 12-month decline.
Not seasonally adjusted CPI measures
The Consumer Price Index for All Urban Consumers (CPI-U) increased 5.3 percent over the last 12 months to an index level of 273.567 (1982-84=100). For the month, the index increased 0.2 percent prior to seasonal adjustment.
The Consumer Price Index for Urban Wage Earners and Clerical Workers (CPI-W) increased 5.8 percent over the last 12 months to an index level of 268.387 (1982-84=100). For the month, the index rose 0.2 percent prior to seasonal adjustment.
The Chained Consumer Price Index for All Urban Consumers (C-CPI-U) increased 5.1 percent over the last 12 months. For the month, the index increased 0.2 percent on a not seasonally adjusted basis. Please note that the indexes for the past 10 to 12 months are subject to revision.
Coronavirus (COVID-19) Pandemic Impact on August 2021 Consumer Price Index Data
Data collection by personal visit for the Consumer Price Index (CPI) program has been suspended since March 16, 2020. When possible, data normally collected by personal visit were collected either online or by phone. Additionally, data collection in August was affected by the temporary closing or limited operations of certain types of establishments. These factors resulted in an increase in the number of prices considered temporarily unavailable and imputed. While the CPI program attempted to collect as much data as possible, many indexes are based on smaller amounts of collected prices than usual, and a small number of indexes that are normally published were not published this month. Additional information is available at www.bls.gov/covid19/effects-of-covid-19-pandemic-on-consumer-price-index.htm.
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MortgageRates.news analysis · Historical context
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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.
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What that benchmark difference would mean for a $300,000 loan
At the publication reference$1,245.48/month
2.88% · Sep 9, 2021
At the later reference$1,272.92/month
3.05% · Oct 14, 2021
The illustrative principal-and-interest payment is $27.44 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.
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