 Furthermore, in that year, the city received less than half of its long-term average rainfall between July and December.In the late morning and early lunchtime of 22 November 2018, a dust storm, stretching about 500 kilometres, swept through Sydney due to a low pressure trough and cold front that picked up dry soil in drought-ridden areas of far western NSW that week.Milder compared to the 2009 storm, the effect of the dust was still apparent across iconic locations such as the Sydney Opera House and Sydney Harbour Bridge.