Consumer Price Index CPI in the United States increased to 247.96 Index Points in December from 247.59 Index Points in November of 2017. Consumer Price Index CPI in the United States averaged 109.72 Index Points from 1950 until 2017, reaching an all time high of 247.96 Index Points in December of 2017 and a record low of 23.51 Index Points in January of 1950.