We're well into the second half of spring, but the wintry weather in southeast Australia is not done with quite yet.

After a spell of widespread wet weather which pushed both Canberra and Sydney above their annual rainfall average, snow fell in parts of the high country of Victoria and New South Wales on Sunday night.

Monday morning revealed around five centimetres of white stuff on the ground in Perisher Valley in NSW, where the ski lifts closed three weeks ago.

Snowy Mountains local Steve Smith drove up through Perisher to the tiny NSW ski village of Charlotte Pass (possibly to do a little snowball-tampering) and measured around 10 centimetres of snow at the lookout.

"It was dense snow from the southeast and similar to the two major snow events from that direction earlier in the ski season," Smith told Weatherzone.

"lt's unusual to have three snow events from that direction in the same year."

He's right. Snow in southern Australia usually arrives via cold fronts which sweep over the mountains from the south or the west.

But in July this year, almost a metre of snow fell in NSW from a rare easterly storm which completely bypassed Victoria, leaving ski slopes in that state high and dry.

Last night's falls also largely missed the largest Victorian resorts of Falls Creek, Mt Hotham and Mt Buller, although Mt Baw in the state's south received a couple of centimetres.

Meanwhile the town of Tumbarumba, at the western foot of the Snowy Mountains, experienced flash-flooding over the weekend. Saturday was the town's wettest day of the year – and indeed its wettest day since the La Niña summer of 2012 – with 59 mm.

Image: Spring has been temporarily benched in "Tumba": Source: @_there.we.are_ /Instagram

Like many locations across southeast Australia, the small NSW town of 1,800 residents is experiencing very much above average rainfall for the year to date - with the prospect of more rain to come in this La Niña summer.