I did a survey of the ten oldest stations in New South Wales And Victoria, circled below. Three rural stations were not included because of obvious problems with the data, but none showed any warming.
MELBOURNE REGIONAL OFFICE ASN00086071 DENILIQUIN (WILKINSON ST) ASN00074128 BATHURST GAOL ASN00063004 SYDNEY (OBSERVATORY HILL) ASN00066062
CAPE OTWAY LIGHTHOUSE GSN ASN00090015BOURKE POST OFFICE ASN00048013 WAGGA WAGGA (KOORINGAL) ASN00072151FORBES (CAMP STREET) ASN00065016 INVERELL COMPARISON ASN00056017GUNNEDAH POOL ASN00055023
The two urban stations at Melbourne and Sydney both showed strong warming, and both have disastrously poor siting of their thermometers in the middle of large cities.
By contrast, all of the rural stations show a long term cooling trend, with some recent warming. (Note that there is no data for the most recent years with some of the rural stations.)
The only conclusion which can be derived from this is that Australia has not warmed long-term, and that BOM claims of record temperatures are due to UHI and/or data tampering.
For all GHCN stations in Australia, there is no net warming since 1880