Courtesy of the Gallup Organization, which has been asking the question since the 1950s. In June 2011, Barack Obama's job approval stands at 50%.
Compared to relevant Presidents at the comparable time during their first terms:
George W. Bush (June 2003): 62%.
Bill Clinton (June 1995): 47%.
George Bush (June 1991): 72%.
Ronald Reagan (June 1983): 45%.
Jimmy Carter (June 1979): 29%.
Richard Nixon (June 1971): 48%.
Dwight Eisenhower (June 1955): 69%.
FYI: The two Bushs' ratings were artificially inflated because of wars.
Compared to relevant Presidents at the comparable time during their first terms:
George W. Bush (June 2003): 62%.
Bill Clinton (June 1995): 47%.
George Bush (June 1991): 72%.
Ronald Reagan (June 1983): 45%.
Jimmy Carter (June 1979): 29%.
Richard Nixon (June 1971): 48%.
Dwight Eisenhower (June 1955): 69%.
FYI: The two Bushs' ratings were artificially inflated because of wars.