This story was updated at 12:15 p.m. EDT

U.S. employers added 173,000 jobs in August, fewer than widely expected, but the unemployment rate still edged down to 5.1 percent, its lowest level since April 2008, the Labor Department said Friday. Meanwhile, wage growth -- which has been stagnant for years -- edged up slightly more than anticipated to 2.2 percent.

Somewhat troubling, though, the labor force participation rate continues to drop, which indicates more Americans giving up on finding work.

The report was forecast to show employers adding 220,000 jobs last month and the unemployment rate was expected to fall to at 5.2 percent, according to analysts polled by Thomson Reuters.  

Even so, amid the recent stock market turmoil and concerns of a slowing global economy, economists question whether the U.S. is strong enough to move away from crisis-level interest rates. Many economists are still not seeing the accelerated growth that suggests the economy needs to slow -- or that businesses are experiencing wage pressure.

Wages and salaries increased modestly by 2.2 percent from 1.9 percent a year earlier, according the Labor Department’s Employment Cost Index.

“Wage growth is still really slow,” said Dan North, chief economist at Euler Hermes. Two of the Federal Reserve’s major mandates -- employment and inflation -- are still off of the Federal Reserve’s target, North explained. “This argues against the central bank raising rates this month,” he said.

Stagnant Wage Growth

There was a bright spot in the August report: The average hourly earnings for private-sector workers rose by 8 cents to $25.09. For most workers, however, real wages have fallen or remained flat for more than three decades.

At this stage in the recovery, with the unemployment rate at 5.1 percent, economists expect stronger wage growth. Overall, wages in private nonfarm payrolls have risen 54 cents over the last year, or just over 2 percent. However, experts say by this point in the recovery, wage growth should be closer to 3 percent, something the U.S. economy saw in the late 1990s and mid-2000s.

“We really haven’t seen the type of pickup in wages that we would normally expect to see,” said Gus Faucher, senior macro economist at PNC Financial Services Group. “I’d expected to see nominal wage growth of close 3 percent, and we’ll get something close to that in the spring of next year.”

The wage gains from the August report weren’t concentrated in only one area. It was a across the board, with a widespread increase in pay per hour for various industries. Professional and business services and construction increased 78 cents and 76 cents, respectively, from a year ago. The sectors that grew the least last month were retail trade, along with leisure and hospitality, up 43 cents and 41 cents respectively, from August 2014.

The Federal Reserve's Next Moves

Friday's jobs report is the last monthly unemployment reading ahead of the Federal Reserve’s next meeting on Sept. 16-17. The financial markets reacted with mixed emotions to the July numbers because the report didn’t completely solidify whether the Fed would actually hike rates in September, or hold off until later. 

With the unemployment rate falling to the lowest level since April 2008, it could offer further evidence the U.S. economy is on strong enough footing to absorb the impact of a Federal Reserve interest rate hike, which many economists had expected in September. The upward adjustment would be the first in nearly a decade. Interest rates remain at historic lows since the financial crisis in 2008.

However, in the midst of the recent stock market turmoil over China’s slowing economy, part of the Fed’s consideration not to raise rates will be global unease. “While China has slowed, its implications are still making financial markets nervous,” said William Spriggs, chief economist at the AFL-CIO.

Mark Hamrick, Washington bureau chief at, agrees. “The consensus has definitely shifted from early August,” Hamrick said, explaining the majority of economists are now looking for the Fed to delay at this month’s meeting. Toughly 40 percent expecting the Fed to lift in September and the 60 percent looking for October and beyond, Hamrick said, citing a survey.

The U.S. had previously added at least 200,000 jobs per month for 12 consecutive months following February’s strong jobs report, a feat not seen in 20 years. However, the reports over the last two quarters haven’t been as stellar.

“Job growth has tapered greatly in the last three months,” said Spriggs. “My hope is the Fed will look at the numbers and say they still need more information before making a decision”

Participation Rate Remains Near 40-Year Low

The number of Americans who have been out of work for 27 weeks or longer was essentially unchanged last month, at 2.2 million, constituting 27.7 percent of the unemployed. Meanwhile, many Americans who work part-time jobs want to work full time, and nearly two-thirds who are able to work have dropped out of the labor force, the highest proportion opting out of the workforce since the 1970s.

The labor-force participation rate remains at its lowest level since October 1977, a 38-year low. That rate fell to 62.6 percent from the prior month, according to the report released Friday.

The participation rate still hovers at a nearly 40-year low because improvements in the labor market are being offset by the structural headwinds of demographic change: Baby boomers are retiring and young professionals are going back to school.

Energy and Manufacturing Job Losses

To be sure, pockets of the U.S. job market are suffering. The energy industry has been hit hard of late. The precipitous drop in oil prices over the last year has led to job losses related to the oil and mining sector as investment in those areas declines. And economists expect the job losses to continue.

In August, employment in mining fell for the seventh month in a row. Since a recent high in December 2014, employment in mining has declined by 90,000, with losses concentrated in support activities for mining.

Meanwhile, manufacturing employment dropped by 17,000 in August, after remaining little changed in July. Job losses occurred in a number of industries, including fabricated metal products and food manufacturing.

Bright Spots Within the August Report

Throughout the post-recession recovery economists have worried that the jobs created have overwhelmingly been in relatively low-paying sectors of the economy, including retail and fast food. But high-end jobs in professional services and technical fields continued to show growth, increasing by 33,000 in August.

Currently, some of the best markets for jobs are in San Francisco, Washington, D.C., and Boston, said Peter Metzger, vice chairman at executive search firm DHR International, adding the firm is seeing strong demand across many industries, including information securities, financial services, healthcare and insurance.

“The hottest area we’re seeing job growth right now is cyber security, across all industries,” Metzger said.