This unseasonable heat in South Australia, Victoria, ACT and New South Wales may remind residents of 2005 when 30-degree warmth lasted until early May.

For Melburnians it’s 48 years since it’s been as warm this late in the season, exceeding 30 degrees in the city. For Adelaideans it’s been five years, also exceeding 30.

It’s been at least 10 years since Orbost got as warm as 28 degrees this late in autumn.

It’s the warmest day in five years this late in autumn for many, including:

– Penrith which reached 29.2 degrees yesterday

– Canberra, 25.4
– Griffith, 29.2
– Geelong, 29.4
– Hamilton, 26.0
– Loxton, 30.7
– Kingscote, 28.2
– Wudinna 31.7
– Ceduna 33.6

For some it will be even warmer today as northwesterly winds freshen just ahead of a cooler change.

Even with a warmer day tomorrow, many will not heat up more than it did in late April or early May in 2005, which was record-breaking.