BERLIN, Jan 6 (Reuters) - German annual inflation slowed in December for the first time since June, but it remained well above the European Central Bank's price stability target of 2% for the euro zone as a whole, preliminary data showed on Thursday.

Consumer prices, harmonised to make them comparable with inflation data from other European Union countries (HICP), rose 5.7% year-on-year following a record increase of 6.0% in November, the German Federal Statistics Office said.

The national consumer price index (CPI) rose by 5.3% year-on-year, which marked a further acceleration in price pressures after an inflation rate of 5.2% in November. (Reporting by Michael Nienaber Editing by Madeline Chambers)