U.S. house prices declined 0.3 percent on a seasonally-adjusted basis from December to January, according to the Federal Housing Finance Agency’s monthly House Price Index. The previously reported 0.3 percent decrease in December was revised downward to a one percent decrease. For the 12 months ending in January, U.S. prices fell 3.9 percent. The U.S. index is 16.5 percent below its April 2007 peak and roughly the same as the May 2004 index level. The FHFA monthly index is calculated using purchase prices of houses backing mortgages that have been sold to or guaranteed by Fannie Mae or Freddie Mac. For the nine Census Divisions, seasonally adjusted monthly price changes from December to January ranged from -1.3 percent in the Mountain and South Atlantic Divisions to +1.6 percent in the West South Central Division. Click here for complete historical data. For detailed information concerning the monthly HPI, please see the HPI Frequently Asked Questions (FAQ).