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Tas winds calm as snow falls to 300m

Thousands of Tasmanians are still without power but the destructive winds that lashed the state all week have finally calmed.

Instead the state has been blanketed with snow to 300 metres above sea level as temperatures dropped well below the average.

Powerful winds started buffeting Tasmania on Monday night, bringing down trees and leaving more than 22,500 homes and businesses without power by Thursday.

That number dropped to 3700 by Friday afternoon.

TasNetworks chief executive Lance Balcombe said crews were working round the clock to get power back on.

"Improved weather conditions mean crews are in a better position to restore power, however some areas remain difficult to access due to heavy snow, road closures and poor road conditions," Mr Balcombe said on Friday.

There are 3200 customers still without power in the north and 500 in the north-west.

Bureau of Meteorology senior forecaster Simon McCulloch said most of Tasmania struggled to make it into double digits as the cold snap hit.

"Across the state today it was about three-to-seven degrees below average," Mr McCulloch told AAP.

He said the severe winds that brought down powerlines and trees - killing one woman in Launceston on Thursday - subsided on Friday.

"We had a south-west-to-southerly change pushing across the state today, that's really the last in the sequence of fronts that have been crossing the state since Monday," he said.

Snow fell to 300 metres above sea level on Friday, and Mr McCulloch said it would drop to 200 metres in some areas overnight.

"Lots of places will get below zero tonight, (there will be) snow on the ground, icy conditions tomorrow," he said.