The centre, which houses almost 200 devils in a bid to help the species survive a facial cancer epidemic in their home state, sits 1350m above sea level.

Snow has dusted the Barrington Tops on the third day of spring, with widespread falls closing the Barrington Tops Forest Road and making travel through the area dangerous.

A blanket roughly six inches (15cm) deep has fallen across a fairly widespread area two days into spring.

Motorists are urged to exercise caution due to severe ice and slipper roads, with Barrington Tops Forest Road closed due to the conditions.

The road is closed from Devils Hole to The Firs in Barrington Tops National Park due to loose snow. 

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NSW National Parks and Wildlife Service (NPWS) Barrington Tops area manager Anthony Signor said a cold snap had brought the Barrington's third snowfall of the year.

“Overnight 10 to 15 cm of snow fell widespread across the Barrington Plateau, which is a significant fall for the area," Mr Signor said.

“Motorists are advised that for safety, NSW Police have temporarily closed the Barrington Tops Forest Road (Scone to Gloucester), from Devils Hole to The Firs in Barrington Tops National Park."

A large tree fall has closed Tubrabucca Road while only four-wheel drives are encouraged to use Pheasants Creek Road and Tomalla Road, the detour between Gloucester and Scone when Barrington Tops Park Road is shut.

“The condition of the roads will continue to be assessed, and people will be advised as soon as they are reopened," Mr Signor said.

“All people entering remote areas, whether by vehicle or on foot, should inform a family member or other responsible person of their travel plans and expected date and time of return."

The snow comes as the Hunter coast is battered by heavy surf, closing Newcastle's beaches.

National Parks and Wildlife Service recommends anyone heading into the area take: 

• Additional warm clothing

• Food and water sufficient for all members of the party for the duration of the stay – with some reserve for unforseen circumstances

• 3G or equivalent telephone capable of transmitting from remote areas (be aware that phone reception is extremely unreliable in most areas of the Barrington wilderness)