Many villages in mountainous regions in Bosnia have been cut off since the start of the cold spell, nearly two weeks ago.
Temperatures dropped to as low as -32C in Poland's southern Bieszczady Mountains, while eight people died in house fires, police said.
A further eight people died in Romania, the health ministry said, raising the overall death toll to 65. Tens of thousands of people remained isolated in the south, where the army, police and firefighters were trying to clear access routes and distribute food and water.
Heavy snowfall also hit many parts of Italy - especially its central and southern regions - where six recent deaths have been linked to the cold weather. Several remote villages in the central Marche and Umbria regions remained cut off as a result of unusually high snow levels.
In north-eastern Trieste, at least 10 people were injured when winds with speeds of more than 130 km/h lashed the Adriatic port city. The poor weather forced the cancellation of flights and Serie A football matches.
In Paris, a major Six Nations rugby match between France and Ireland was cancelled after the referee declared the pitch at Stade de France stadium was frozen.
In northern Bulgaria, trains could not make their way through the deep snow, which the wind has blown on the railways, state radio reported.
The Bulgarian section of the Danube was completely frozen on Saturday, the national Agency for Maintenance of the Danube River said. The Bulgarian Maritime Administration has banned all navigation in the Bulgaria section, including ferries to Romania.
-AAP