Washington, Aug 13 - US economists are generally agreed that America's worst economic downturn since the Great Depression is over, but an average American is unlikely to feel things are significantly better anytime soon.

The Wall Street Journal's survey of top economists, published Wednesday, found that 57 percent believe the recession is already over, while another 23 percent believe that the economy will turn in the next month or two.

Most economists now expect growth in the gross domestic product, the broad measure of the nation's economic activity, of about three percent or more in the period of July through September.

But the National Bureau of Economic Research (NBER), the body of economists charged with officially setting the start and the end of each recession, won't pronounce a start of the recovery until next year at the earliest, CNNMoney.com said.

Its statement that the 2001 recession ended in November of that year didn't come until 18 months later, it noted. Its pronouncement that the current recession had started in December 2007 didn't come until 12 months after the start. So by the time the NBER says anything about a recovery, it will already be well established.

The closest to an official pronouncement of the end of the recession came in the statement from the Federal Reserve Wednesday that it sees the economy as 'levelling out' following its long decline.