By PAUL WISEMAN and CHRISTOPHER S. RUGABERWASHINGTON (AP) â¿¿ The U.S. job market proved resilient in December despite fears that a budget impasse in Washington would send the economy over the fiscal cliff and trigger growth-killing tax hikes and spending cuts. Employers added 155,000 jobs last month, roughly matching the solid but unspectacular monthly pace of the past two years. The gains announced Friday weren't enough to reduce unemployment, which remained a still-high 7.8 percent. The November rate was revised up a notch from the 7.7 percent the government had originally reported. The stable pace of December hiring suggested that many employers tuned out the fracas in the nation's capital. The threat wasn't averted until a deal won final passage on New Year's Day. Rather than hold back until the fiscal cliff was resolved, many employers kept hiring, most likely in anticipation of higher customer demand. "What would hiring have been if we had not been facing the fiscal cliff in December?" said Robert Kavcic, senior economist at BMO Capital Markets. "We might have seen quite a bit stronger job growth" â¿¿ something closer to 200,000 a month. That's an encouraging sign for the job market, because an even bigger budget showdown is looming: Congress must vote to raise the government's $16.4 trillion borrowing limit by late February. If not, the government risks defaulting on its debt. Republicans will likely demand deep spending cuts as the price of raising the debt limit. Robust hiring in construction and manufacturing drove last month's job increases. Construction firms added 30,000 jobs, the most in 15 months. In part, that increase likely reflected hiring needed to rebuild from Superstorm Sandy. And the housing market's gradual recovery has energized homebuilding. Manufacturers added 25,000 jobs, the most in nine months. Economists found other hopeful news in the report. Americans were given more work hours in December â¿¿ an average 34.5 hours a week in December, up from 34.4 in November. And their pay outgrew inflation. Hourly wages rose 7 cents to $23.73 last month, a 2.1 percent increase compared with a year earlier. Over the same period, inflation rose 1.8 percent.