That's a drop from the last Quinnipiac poll of the state, conducted in May, which showed 50 percent disapproving of the President's job performance, while 45 percent approved.
And it's significantly worse than his average approval rating nationwide for the second quarter of his second term.
The newest Gallup average of daily tracking polls for the last three months shows his approval rating at 47.9 percent.
The dismal approval rating comes as he launches a tour of the nation to press lawmakers to act on the economy, and as the administration readies the rollout of parts of the healthcare reform law.
The survey was conducted among 1,256 registered voters from July 15-17, and has a margin of error of plus or minus 2.8 percentage points.