On December 15 it jacked up the key rate to 17% from 10.5% in a bid to stabilize the ruble, only to see the currency suffer its worst plunge since President Vladimir Putin came to power 15 years ago, sparking a panic in a country haunted by memories of hyperinflation.
The interest rate was then widely seen as untenably high but the central bank said on Friday that December hike had "resulted in stabilization of inflation and depreciation expectations."
Inflation reached 11.4% in 2014 and could soar to 17% within months, deputy economy minister Alexei Vedev said.
But the central bank said the surge in consumer prices was temporary.
In the longer term, "the inflation pressure will be contained by decrease of economic activity," it said, forecasting inflation to fall below 10% in January 2016.
Copyright Agence France-Presse, 2015