CPI-U in 1988
The U.S. Consumer Price Index for All Urban Consumers (CPI-U) averaged 118.3 in 1988 (1982–84 = 100), 4.1% above the 1987 average. From December 1987 to December 1988, prices rose 4.4%. Prices in August 2026 were 2.83 times their 1988 level.
Monthly CPI-U index values, 1988
The highest monthly index in 1988 was 120.5 (December), the lowest 115.7 (January). The 12-month inflation rate ranged from +3.9% in May to +4.4% in December. Historical context — The Great Moderation (1983–2007): Inflation averaged about 3% a year with low volatility.
| Month | CPI-U index | Change from prior month | 12-month change |
|---|---|---|---|
| January 1988 | 115.7 | +0.3% | +4.0% |
| February 1988 | 116.0 | +0.3% | +3.9% |
| March 1988 | 116.5 | +0.4% | +3.9% |
| April 1988 | 117.1 | +0.5% | +3.9% |
| May 1988 | 117.5 | +0.3% | +3.9% |
| June 1988 | 118.0 | +0.4% | +4.0% |
| July 1988 | 118.5 | +0.4% | +4.1% |
| August 1988 | 119.0 | +0.4% | +4.0% |
| September 1988 | 119.8 | +0.7% | +4.2% |
| October 1988 | 120.2 | +0.3% | +4.2% |
| November 1988 | 120.3 | +0.1% | +4.2% |
| December 1988 | 120.5 | +0.2% | +4.4% |
CPI-U, U.S. city average, all items, not seasonally adjusted, 1982–84 = 100 (BLS series CUUR0000SA0). Before 2007 the BLS published the index to one decimal place. Annual average 118.3 as published by the BLS.
CPI 1988: common questions
What was the CPI in 1988?
The CPI-U annual average for 1988 was 118.3 on the 1982–84 = 100 base. Monthly values ranged from 115.7 to 120.5.
What was the inflation rate in 1988?
Measured by annual averages, consumer prices rose 4.1% in 1988; December to December the change was +4.4%.
How much is $100 from 1988 worth today?
About $283.16 in August 2026 prices, based on the change in CPI-U. Use the inflation calculator for other amounts.