CPI Median in the United States increased to 3.83 percent in December from 3.50 percent in November of 2021. CPI Median in the United States averaged 2.87 percent from 1983 until 2021, reaching an all time high of 4.80 percent in August of 1990 and a record low of 0.50 percent in May of 2010. In the United States, Median CPI is the one-month inflation rate of the component whose expenditure weight is in the 50th percentile of price changes. To calculate the median CPI, the Federal Reserve Bank of Cleveland looks at the prices of the goods and services published by the Bureau of Labor Statistics (BLS). But instead of calculating an inflation rate that is a weighted average of all of the items in the CPI, as the BLS does, the Cleveland Fed ranks the inflation rates of the components of the CPI and picks the one in the middle of the distribution—that is, the item whose expenditure weight is in the 50th percentile of the price change distribution. This page provides — United States CPI Median- actual values, historical data, forecast, chart, statistics, economic calendar and news.