Prime rate history from 1955 to the present.
The U.S. prime rate is currently at 3.25%.
The last change to the prime rate was in December of 2008. Each bank determines their own prime lending rate and though the prime rate may be different between large US banks it is most frequently the same rate and changes to the prime rate are generally made by banks at the same time. The prime rate does not change at regular intervals, it may change frequently as was the case as recently as 2001 or it may not change for over a year as is the present situation.
Prime rate history changes and rates:
2008-12-16 3.25%
2008-10-29 4.00%
2008-10-08 4.50%
2008-04-30 5.00%
2008-03-18 5.25%
2008-01-30 6.00%
2008-01-22 6.50%
2007-12-11 7.25%
2007-10-31 7.50%
2007-09-18 7.75%
2006-06-29 8.25%
2006-05-10 8.00%
2006-03-28 7.75%
2006-01-31 7.50%
2005-12-13 7.25%
2005-11-01 7.00%
2005-09-20 6.75%
2005-08-09 6.50%
2005-06-30 6.25%
2005-05-03 6.00%
2005-03-22 5.75%
2005-02-02 5.50%
2004-12-15 5.25%
2004-11-10 5.00%
2004-09-21 4.75%
2004-08-11 4.50%
2004-07-01 4.25%
2003-06-27 4.00%
2002-11-07 4.25%
2001-12-12 4.75%
2001-11-07 5.00%
2001-10-03 5.50%
2001-09-18 6.00%
2001-08-22 6.50%
2001-06-28 6.75%
2001-05-16 7.00%
2001-04-19 7.50%
2001-03-21 8.00%
2001-02-01 8.50%
2001-01-04 9.00%
2000-05-17 9.50%
2000-03-22 9.00%
2000-02-03 8.75%
1999-11-17 8.50%
1999-08-25 8.25%
1999-07-01 8.00%
1998-11-18 7.75%
1998-10-16 8.00%
1998-09-30 8.25%
1997-03-26 8.50%
1996-02-01 8.25%
1995-12-20 8.50%
1995-07-07 8.75%
1995-02-01 9.00%
1994-11-15 8.50%
1994-08-16 7.75%
1994-05-17 7.25%
1994-04-19 6.75%
1994-03-24 6.25%
1992-07-02 6.00%
1991-12-23 6.50%
1991-11-06 7.50%
1991-09-13 8.00%
1991-05-01 8.50%
1991-02-04 9.00%
1991-01-02 9.50%
1990-01-08 10.00%
1989-07-31 10.50%
1989-06-05 11.00%
1989-02-24 11.50%
1989-02-10 11.00%
1988-11-28 10.50%
1988-08-11 10.00%
1988-07-14 9.50%
1988-05-11 9.00%
1988-02-02 8.50%
1987-11-05 8.75%
1987-10-22 9.00%
1987-10-07 9.25%
1987-09-04 8.75%
1987-05-15 8.25%
1987-05-01 8.00%
1987-04-01 7.75%
1986-08-26 7.50%
1986-07-11 8.00%
1986-04-21 8.50%
1986-03-07 9.00%
1985-06-18 9.50%
1985-05-20 10.00%
1985-01-15 10.50%
1984-12-19 10.75%
1984-11-28 11.25%
1984-11-08 11.75%
1984-10-29 12.00%
1984-10-16 12.50%
1984-09-27 12.75%
1984-06-25 13.00%
1984-05-08 12.50%
1984-04-05 12.00%
1984-03-19 11.50%
1983-08-08 11.00%
1983-02-25 10.50%
1983-01-11 11.00%
1982-11-22 11.50%
1982-10-13 12.00%
1982-10-07 13.00%
1982-08-23 13.50%
1982-08-18 14.00%
1982-08-16 14.50%
1982-08-02 15.00%
1982-07-29 15.50%
1982-07-20 16.00%
1982-02-23 16.50%
1982-02-17 17.00%
1982-02-02 16.50%
1981-12-01 15.75%
1981-11-24 16.00%
1981-11-16 16.50%
1981-11-09 17.00%
1981-11-02 17.50%
1981-10-13 18.00%
1981-10-05 19.00%
1981-09-22 19.50%
1981-09-16 20.00%
1981-07-08 20.50%
1981-06-01 20.00%
1981-05-22 20.50%
1981-05-18 20.00%
1981-05-11 19.50%
1981-05-04 19.00%
1981-04-29 18.00%
1981-04-20 17.50%
1981-04-01 17.00%
1981-03-27 17.50%
1981-03-24 17.00%
1981-03-17 17.50%
1981-03-10 18.00%
1981-03-03 18.50%
1981-02-23 19.00%
1981-02-03 19.50%
1981-01-09 20.00%
1981-01-02 20.50%
1980-12-19 21.50%
1980-12-16 21.00%
1980-12-10 20.00%
1980-12-05 19.00%
1980-12-02 18.50%
1980-11-26 17.75%
1980-11-21 17.00%
1980-11-17 16.25%
1980-11-06 15.50%
1980-10-29 14.50%
1980-10-17 14.00%
1980-10-01 13.50%
1980-09-26 13.00%
1980-09-19 12.50%
1980-09-12 12.25%
1980-09-08 12.00%
1980-08-27 11.50%
1980-08-22 11.25%
1980-07-23 11.00%
1980-07-07 11.50%
1980-06-17 12.00%
1980-06-13 12.50%
1980-06-06 13.00%
1980-05-28 14.00%
1980-05-23 14.50%
1980-05-16 16.50%
1980-05-07 17.50%
1980-05-01 18.50%
1980-04-18 19.50%
1980-04-02 20.00%
1980-03-28 19.50%
1980-03-19 19.00%
1980-03-14 18.50%
1980-03-07 17.75%
1980-03-04 17.25%
1980-02-29 16.75%
1980-02-22 16.50%
1980-02-19 15.75%
1979-12-07 15.25%
1979-11-30 15.50%
1979-11-16 15.75%
1979-11-09 15.50%
1979-11-01 15.25%
1979-10-24 15.00%
1979-10-09 14.50%
1979-09-28 13.50%
1979-09-20 13.25%
1979-09-14 13.00%
1979-09-07 12.75%
1979-08-28 12.25%
1979-08-16 12.00%
1979-07-27 11.75%
1979-06-19 11.50%
1978-12-26 11.75%
1978-11-24 11.50%
1978-11-17 11.00%
1978-11-06 10.75%
1978-11-01 10.50%
1978-10-27 10.25%
1978-10-13 10.00%
1978-09-28 9.75%
1978-09-15 9.50%
1978-09-01 9.25%
1978-06-30 9.00%
1978-06-16 8.75%
1978-05-26 8.50%
1978-05-05 8.25%
1978-01-10 8.00%
1977-10-24 7.75%
1977-10-07 7.50%
1977-09-16 7.25%
1977-08-22 7.00%
1977-05-27 6.75%
1977-05-13 6.50%
1976-12-10 6.25%
1976-10-29 6.50%
1976-10-01 6.75%
1976-08-02 7.00%
1976-06-04 7.25%
1976-06-01 7.00%
1976-01-21 6.75%
1976-01-12 7.00%
1975-12-01 7.25%
1975-11-04 7.50%
1975-10-27 7.75%
1975-09-15 8.00%
1975-08-11 7.75%
1975-07-25 7.50%
1975-07-18 7.25%
1975-06-09 7.00%
1975-05-20 7.25%
1975-03-25 7.50%
1975-03-19 7.75%
1975-03-10 8.00%
1975-03-03 8.25%
1975-02-24 8.50%
1975-02-18 8.75%
1975-02-03 9.00%
1975-01-28 9.50%
1975-01-13 10.00%
1974-11-25 10.25%
1974-11-13 10.75%
1974-11-06 11.00%
1974-10-22 11.25%
1974-10-08 11.75%
1974-07-08 12.00%
1974-06-27 11.75%
1974-05-17 11.50%
1974-05-10 11.25%
1974-05-07 11.00%
1974-05-02 10.75%
1974-04-25 10.50%
1974-04-22 10.25%
1974-04-11 10.00%
1974-04-08 9.75%
1974-04-04 9.50%
1974-04-01 9.25%
1974-03-22 9.00%
1974-02-25 8.75%
1974-02-19 9.00%
1974-02-11 9.25%
1974-01-29 9.50%
1973-12-03 9.75%
1973-10-29 9.50%
1973-10-23 9.75%
1973-09-18 10.00%
1973-08-28 9.75%
1973-08-21 9.50%
1973-08-13 9.25%
1973-08-06 9.00%
1973-07-30 8.75%
1973-07-18 8.50%
1973-07-09 8.25%
1973-07-02 8.00%
1973-06-22 7.75%
1973-06-07 7.50%
1973-05-25 7.25%
1973-05-07 7.00%
1973-04-19 6.75%
1973-03-26 6.50%
1973-02-27 6.25%
1972-12-27 6.00%
1972-10-03 5.75%
1972-08-29 5.50%
1972-06-27 5.25%
1972-03-31 5.00%
1972-03-20 4.75%
1972-02-16 4.50%
1972-01-18 4.75%
1972-01-03 5.00%
1971-12-17 5.25%
1971-11-08 5.50%
1971-10-20 5.75%
1971-07-07 6.00%
1971-04-23 5.50%
1971-03-19 5.25%
1971-03-11 5.50%
1971-02-16 5.75%
1971-01-18 6.00%
1971-01-15 6.25%
1971-01-06 6.50%
1970-12-22 6.75%
1970-11-23 7.00%
1970-11-12 7.25%
1970-09-21 7.50%
1970-03-25 8.00%
1969-06-09 8.50%
1969-03-17 7.50%
1969-01-07 7.00%
1968-12-18 6.75%
1968-12-02 6.50%
1968-09-25 6.25%
1968-04-19 6.50%
1967-11-20 6.00%
1967-03-27 5.50%
1967-01-26 5.75%
1966-08-16 6.00%
1966-06-29 5.75%
1966-03-10 5.50%
1965-12-06 5.00%
1960-08-23 4.50%
1959-09-01 5.00%
1959-05-18 4.50%
1958-09-11 4.00%
1958-04-21 3.50%
1958-01-22 4.00%
1957-08-06 4.50%
1956-08-21 4.00%
1956-04-13 3.75%
1955-10-14 3.50%
1955-08-04 3.25%