WASHINGTON (AP) — U.S. employers added 145,000 jobs in December and the unemployment rate held steady at 3.5%, signaling that the job market remains strong at the start of 2020 even if hiring and wage gains have slowed somewhat more than a decade into an economic expansion.

Friday's snapshot from the Labor Department showed hiring slipped from robust gains of 256,000 in November, which were given a boost by the end of a strike at General Motors. For the year, employers added an average of roughly 175,000 jobs per month, compared with about 223,250 per month in 2018.

Annual wage growth fell in...