A cold air mass originating from the Southern Ocean pushed across southeastern Australia in mid-June, driving Canberra to -7.2 degrees Celsius, its lowest June reading since 1986, while Goulburn fell to -4 degrees and widespread frost warnings were issued for three states.
A series of severe thunderstorm events in late May and early June brought heavy rainfall to southeast Queensland and coastal New South Wales, with flood watches issued for the Hunter River catchment, mid-north coast, and several Queensland river systems.
A rapidly deepening low-pressure system struck the southwest coast of Western Australia around June 1, ripping roofs from buildings, flooding sections of the Perth CBD, and cutting power to tens of thousands of homes in what meteorologists said was a once-in-three-to-five-years event.
