The daily fed funds rate (or effective fed funds rate) is the interest rate that depository institutions charge one another for overnight loans of deposits at the Federal Reserve. The Board of Governors updates this data daily in its H.15 Statistical Release. The Federal Open Market Committee (FOMC) sets the target for the fed funds rate. On Dec. 16, 2008, the FOMC replaced its traditional target rate with a target range between 0-0.25 percent, which it left unchanged on January 28, 2009.
See even more long-term Daily Fed Funds Rate charts and historical data from FRED (Federal Reserve Economic Data), the St. Louis Fed Research Department's database of more than 20,000 U.S. economic time series.