US gains strong 257K jobs, pay jumps; jobless rate 5.7 pct.

In this Friday, Jan. 23, 2015 photo, job applicant Rafael Ferrer, 49, left, shakes hands with a representative of the Hilton Bentley Miami Beach hotel during a job fair at the Hospitality Institute, Friday, Jan. 23, 2015, in Miami. The institute is part of Miami Dade College which offers training and job placement assistance in the hospitality industry to inner city residents. The Labor Department releases employment data for January on Friday, Feb. 6, 2015. (AP Photo/Lynne Sladky)
In this Friday, Jan. 23, 2015 photo, job applicant Rafael Ferrer, 49, left, shakes hands with a representative of the Hilton Bentley Miami Beach hotel during a job fair at the Hospitality Institute, Friday, Jan. 23, 2015, in Miami. The institute is part of Miami Dade College which offers training and job placement assistance in the hospitality industry to inner city residents. The Labor Department releases employment data for January on Friday, Feb. 6, 2015. (AP Photo/Lynne Sladky)
In this Friday, Jan. 23, 2015 photo, job applicant Rafael Ferrer, 49, left, shakes hands with a representative of the Hilton Bentley Miami Beach hotel during a job fair at the Hospitality Institute, Friday, Jan. 23, 2015, in Miami. The institute is part of Miami Dade College which offers training and job placement assistance in the hospitality industry to inner city residents. The Labor Department releases employment data for January on Friday, Feb. 6, 2015. (AP Photo/Lynne Sladky)

WASHINGTON (AP) — U.S. employers added a vigorous 257,000 jobs in January, and wages jumped by the most in six years — evidence that the U.S. job market is accelerating closer to full health.

The surprisingly robust report the Labor Department issued Friday also showed that hiring was far stronger in November and December than previously thought. Employers added 414,000 jobs in November — the most in 17 years. Job growth in December was also revised sharply higher, to 329,000, from 252,000.

Average hourly wages soared 12 cents in December to $24.75, the biggest gain since September 2008. In the past year, hourly pay has increased 2.2 percent. That is ahead of inflation, which rose just 0.7 percent in 2014.

The sharp drop in gas prices in the past year has held down inflation and boosted Americans’ spending power. Still, wages typically rise at a roughly 3.5 percent pace in a fully healthy economy.

The unemployment rate in January rose to 5.7 percent from 5.6 percent. But that occurred for a good reason: More Americans began looking for jobs, though not all of them found work. Their job hunting suggests that they are more confident about their prospects.

Strong hiring pushes up wages as employers compete for fewer workers. Job gains have now averaged 336,000 a month for the past three months, the best three-month pace in 17 years. Just a year ago, the three-month average was only 197,000.

The Federal Reserve is closely monitoring wages and other job market data as it considers when to begin raising the short-term interest rate it controls from a record low near zero. The Fed has kept rates at record lows for more than six years to help stimulate growth. Most economists think the central bank will start boosting rates as early as June.

Steady economic growth has encouraged companies to keep hiring. The economy expanded at a 4.8 percent annual rate during spring and summer, the fastest six-month pace in a decade, before slowing to a still-decent 2.6 percent pace in the final three months of 2014.

There are now 3.2 million more Americans earning paychecks than there were 12 months ago. That lifts consumer spending, which drives about 70 percent of economic growth.

More hiring, along with sharply lower gasoline prices, has boosted Americans’ confidence and spending power. Consumer confidence jumped in January to its highest level in a decade, according to a survey by the University of Michigan. And Americans increased their spending during the final three months of last year at the fastest pace in nearly nine years.