The average annual temperature in Sydney is 17.6 °C | 63.7 °F. Damaging winds were observed through parts of the Illawarra, Central Tablelands, Southern Tablelands and Sydney Metropolitan areas in New South Wales. September was a warm month for all of Australia, with both mean maximum and mean minimum temperatures very much warmer than average over much of the continent. Flooding affected eastern Australia during February and March, particularly through Queensland. Use of the 1961–1990 base period for reporting anomalies follows international conventions set by the World Meteorological Organization. Subsequent quality control and the availability of additional data may result in minor changes to final values. Summer (December – February) During summer, average temperatures range from 18.6 - 25.8°C (65.5 - 78.4°F), and average humidity spikes to 65%. Summers are warm to hot and winters are mild, with rainfall spread fairly evenly throughout the year. La Niña is also associated with more heavy rainfall events, while El Niño years experience fewer. All values in this statement were compiled from data available on the issue date. And more specifically, where it lies in relation to the equator and the two latitudes: the Tropic of Cancer and the Tropic of Capricorn, which is where subtropical high pressures occur, as can be seen in the red shaded areas in the map below. A tornado occurred at Horsham in Victoria, damaging roofs and trees along a narrow path on 7 December as a line of showers associated with a cold front passed through around 1 am. Throughout the year, there are 137.7 rainfall days, and 1281mm (50.4") of precipitation is accumulated. Some properties were isolated for a number of weeks, and several roads were closed across the region, disrupting major transport routes. Strong winds through the Central West district whipped up large amounts of dust, blanketing many towns and reducing visibility below 500 m in Geraldton. Additionally, large areas of Western Australia saw very little rain during April to July, and short-term rainfall deficiencies emerged across much of southwest Western Australia starting from April. ©Bureau of Meteorology Northern wet season (October–April) rainfall deciles for the last 20 years (2000–01 to 2019–20). La Niña is also associated with more heavy rainfall events, while El Niño years experience fewer. At the same time, humidity was very high as tropical moisture drifted south, with record-high dewpoint temperatures making for exceptionally muggy and unpleasant conditions. Annual rainfall totals were in the lowest 10% of historical observations for small parts of west coast Western Australia. Sea surface temperatures across the Great Barrier Reef warmest on record for February and second-warmest on record for March. For the southern Australian region (south of 26°S) May–July rainfall was the seventh-lowest on record compared to all May–July periods since 1900. A more significant heatwave came at the end of the month when very warm air was directed from the middle of the continent into southeastern and eastern Australia as frontal systems combined with a heat trough over inland Australia. At times temperatures were close to or exceeded 40 °C over wide regions, including coastal areas. For the globe as a whole, the average annual sea surface temperature for 2020 was 0.60 °C above the 1961–1990 average, the third-warmest on record in the ERSST v5 dataset which commences in 1854. See State of the Climate 2020 for further information. The interior desert sees its greatest rainfall during spring and summer. Australia is known for a variable climate and highly variable rainfall which results in substantial variation in wheat yields. The average annual temperature in Sydney is 17.6 °C | 63.7 °F. In this process, the moisture in the air is lost and it warms due to a phenomenon known as compressional heating. The national rainfall dataset commences in 1900. With over 70 percent of its land classified as arid or semi-arid, Australia is considered the driest inhabited continent in the world. One of the main causes of drought in Australia is the lack of rainfall during certain periods, such as during an El Niño phase, as mentioned previously. Post event assessment indicated the tornado was most likely EF1 strength. Western Power reported at least 62 000 homes without power, affecting communities all across the west of the State. Australia opens up more borders for domestic travel . Annual rainfall close to average for Victoria, and well above average for Melbourne. Extreme heat affected northern Australia and the Top End of the Northern Territory during August. A strong cold front which crossed Victoria on 3 April brought a sharp decrease in temperatures and considerable rainfall to parts of Victoria and the southeast between the evening of the 3rd and 5th. This further declined to 36.8% in March. Most capital cities were warmer than average in 2020. Weather in January » A low- to severe-intensity heatwave affected much of northwest to southeast Queensland around the middle of the month. In general, baseline climatological periods try to make use of the period with the best data coverage. However, rainfall for the northern wet season was lower than average in both 2018–19 and 2019–20. ... Average monthly precipitation over the year (rainfall, snow) 3. February rainfall was above average for most of the western half of Western Australia, and along the track of tropical cyclone Esther across the base of the Top End and the northern half of the Kimberley. According to Köppen and Geiger, this climate is classified as Cfa. For Australia as a whole June rainfall was the third-lowest on record. The average annual temperature in Sydney is 17.6 °C | 63.7 °F. Annual mean minimum temperatures were also above average for much of the country, but close to average for eastern South Australia, northwestern Victoria, and southwestern New South Wales. Rainfall for the year was close to average overall for Australia; below average in parts of the west and southeast Queensland, but above average in parts of the northwest and the southeast. The second most severe flood occurred relatively recently in December 2010, which took the lives of 35 people in Brisbane and South East Queensland, and resulted in damages of over $2 billion. Only about one-fifth of the area receives annual precipitation of more than 10 inches (250 mm), and less than half of that has more than 16 inches (400 mm). Plan ahead with this information on weather and rainfall in Australia’s capital cities. These wet months in the beginning of 2017 were compensated for, with a drier than usual 6 months to follow, from April to September 2017. The Southern Annular Mode (SAM) was positive for much of May and June. Rainfall for the year was close to average overall for Australia; below average in parts of the west and southeast Queensland, but above average in parts of the northwest and the southeast. Total storage volume in the southern Murray–Darling Basin typically decreases until late April as this is the period when the bulk of downriver releases occur, and inflows are on average lower. The wettest spot is Mount Bellenden Ker in the north-east of the country records an average of 8,000 millimetres (310 in) per year… The speed and volume of runoff was likely to have increased due to the lack of vegetation. South Australia suffered its driest year on record during 2019, the Bureau of Meteorology says, with rainfall down 65 per cent as mean temperatures rose … All tropical cyclones existing between 1 July and 30 June the following year count towards the season total. Cool season tornados are typically observed once or twice a year, but it is rare that they move through populated areas—many may go unnoticed in sparsely populated areas. The annual mean maximum temperature was also above average for Perth, Canberra, and Brisbane, close to average at most sites across greater Adelaide, and close to average or slightly below average at most sites across greater Melbourne. Temperature poster. Damaging storm surges coincided with king tides, resulting in hazardous surf conditions and major coastal erosion at numerous beaches in northeast New South Wales and southeast Queensland. Broadly, Australia can be divided into 2 seasonal rainfall regimes: the north and the south. The northern half of the continent typically experiences a monsoonal, summer wet season, with rainfall falling from October through April, and the rest of the year being dry. Some stations in northern Western Australia broke their previous August record multiple times. Annual rainfall exceeds 400 mm (15.5 in), and it's more abundant along the northernmost and the eastern coasts, where it exceeds 1,200 mm (47 in). From the El Niño and La Niña phenomena to subtropical high pressures, there are many factors influencing the weather patterns in Australia and affecting the various Australian regions in different ways. The New South Wales State Emergency Service received more than 1000 calls for help and the Queensland Fire and Emergency Services received more than 1500 calls for help. This is the third mass bleaching event to affect the reef in five years. While those in the southern Murray–Darling Basin saw significant increases during 2020, those in the northern Basin fared less well, and storage levels remained low at the end of the year. February and March followed a similar trend, experiencing slightly more rain than usual. 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