The maximum and minimum temperatures in all states and territories were above normal, according to the Bureau of Meteorology.
The Bureau of Meteorology issued its annual climate statement on Friday, confirming preliminary data previously published by The Guardian showing that the fourth warmest year on record was 2020. The office’s senior climatologist, Dr. Lynette Bettio, said 2020 was part of a series of exceptionally hot years and began in the midst of intense bushfires that began at the end of 2019. We know that Australia is affected by climate change, but since 2013 it has been in the top 10 hottest years on record every year, Bettio said. For all states and territories, maximum and minimum temperatures were above normal, the 2020 statement showed. In November, a biennial State of the Environment Report was issued by the bureau and CSIRO, which found that the nation’s climate has entered a new period of prolonged extreme climate events. Bettio said that the 10-year period from 2011 to 2020 was the warmest on record, with an average temperature of 0.94 ° C above average – 0.33 ° C warmer than the previous decade. Climate state: five major issues from the study that will impact every AustralianContinue readingThe Guardian’s data showed that every decade since 1950 has been warmer than the previous one. The temperature analysis of the bureau comes from the ACORN-SAT dataset, which includes readings from 112 weather stations across the country and dates back to 1910. In 2020, rainfall across the country was close to average, and while this has eased drought conditions, it was not enough in most areas to reverse many years of below-average rainfall, the office said.
Hot nights have occurred in Canberra and Brisbane. The hottest temperature in the Sydney Basin in 2020 was 48.9 ° C on Jan. 4 at Penrith Lakes. The ACT had its hottest day on record at 44 ° C at Canberra Airport on the same day. Western Australia had another record warm year, ranking second for heat in 2020 behind 2019. In the Murray-Darling Basin, water storage increased.
A bonus for arable farming was rainfall in the early months of 2020. The spring of 2020 was the hottest since 1910, as was the month of November. The difference between the intense heat of 2019 and the slightly less hot 2020 was due to differences between the various phenomena that can affect Australia, Andrew Watkins, head of the climate division of the bureau, said. A negative phase of the Indian Ocean dipole from around August had provided a boost to rainfall in the south of the country.
The IOD was positive in Australia’s driest year on record in 2019. The Southern Annular Mode, which can influence the location of westerly winds in the south of the continent, was in a positive phase in September 2020, and this also helped to bring wetter and cooler conditions than normal. In February and March, noteworthy events in 2020 included record warm sea surface temperatures on the Great Barrier Reef, resulting in the largest ever coral bleaching. In mid-December, the northeast of the state and southeast Queensland were again hit by storms which caused erosion.