chilling - the process of becoming cooler; a falling temperature. cooling, temperature reduction. freeze, freezing - the withdrawal of heat to change something from a liquid to a solid. heat dissipation - dissipation of heat.
Australia is also one of the driest continents on earth with an average annual rainfall of less than 600 millimetres. Like all countries in the southern hemisphere, Australia's seasons are opposite to those in the northern hemisphere.
Interdecadal variability is particularly high in the more arid areas of Australia. As an example, the 11-year average annual rainfall at Marree (South Australia) has fluctuated from around 100 mm in the 1960s to 250 mm in the 1970s.The wide range of rainfall variability in Australia has had many consequences.ustralia is the worldâs second-driest continent (after Antarctica), with average (mean) annual rainfall below 600 millimetres (mm) over 80% of the continent, and below 300 mm over 50%.