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Recent climate events such as extremely high temperatures and widespread drought have focused government and public attention on the effects of climate change in Australia. [153] Rainfall in southwestern Australia has decreased by 10–20% since the 1970s, while southeastern Australia has also experienced a moderate decline since the 1990s. [150]
March Rainfall was 74% above average for NSW, and 35% above average for Victoria however overall rain was 27% below average for Australia. A large number of sites in NSW recorded their wettest March on record, in Greater Sydney, Illawarra, Northern Rivers and the Mid North Coast saw numerous daily records and monthly records broken.
A dried up Lake Hume, 2007 Drought-affected fields in the Victorian countryside, 2006. Drought in Australia is defined by the Australian Bureau of Meteorology as rainfall over period greater than three-months being in the lowest decile of what has been recorded for that region in the past. [1]
The 1950 rainfall records for the Australian states of New South Wales and Queensland reported probably the most remarkable record high rainfall totals ever recorded anywhere in the continent. Averaged over both of these states, 1950 is clearly the wettest year since adequate records became available circa 1885.
Description: Decile rank of rainfall of Australia for each calendar year 1900-2022. Decile 1 means the lowest 10 per cent of records, decile 2 the next lowest 10 per cent, and so on, up to decile 10, the highest 10 per cent of records.
Australia is the driest inhabited continent; its annual rainfall averaged over continental area is less than 500 mm. [176] The population density is 3.4 inhabitants per square kilometre, although the large majority
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The Australian monsoon (AUM), also known as the Australian summer monsoon (ASM), [2] and the Australian-Indonesian monsoon (AIM), [3] is a monsoon system that increases thunderstorms and rainfall over many areas of Indonesia and northern Australia, from the far northern tropics of the region to the semi-arid zone of Australia, typically between ...