Severe weather events or extreme weather events in Sydney, Australia, include hailstorms, thunderstorms, gale, bushfires, heatwaves, drought, and flash flooding (caused by East coast lows or black nor'easters). Sydney is rarely affected by cyclones, although remnants of cyclones do affect the city. [1]
Global warming has increased the chances of extreme rain and flash floods in Sydney recently. [2] [3] Destructive heavy rainfall events have been recorded occurring in the Sydney area since records began in the 18th century. [4] [2] [5]
Annually, coastal Sydney sees five heat-related deaths per 100,000 people while the western suburbs see 14 per 100,000. [6] Heat-related deaths in the city were common in the late 19th and early 20th century period (due to lack of air conditioners) where several individual cases were reported. [7] [8] [9] [10]
Highest monthly average high temperature | |||||||||||||
Parameter | Jan | Feb | March | April | May | June | July | Aug | Sept | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sydney CBD [178] | 29.6 °C (85.3 °F) (2017) | 29.0 °C (84.2 °F) (1998) | 27.1 °C (80.8 °F) (2006) | 26.1 °C (79.0 °F) (2018) | 23.2 °C (73.8 °F) (2014) | 20.3 °C (68.5 °F) (1957) | 19.9 °C (67.8 °F) (2018) | 21.3 °C (70.3 °F) (1995) | 24.4 °C (75.9 °F) (1988) | 26.2 °C (79.2 °F) (1988) | 26.6 °C (79.9 °F) (2019) | 28.6 °C (83.5 °F) (2005) | |
Bankstown Airport (Western Sydney) [179] | 32.3 °C (90.1 °F) (2019) | 30.8 °C (87.4 °F) (2017) | 28.8 °C (83.8 °F) (1998) | 27.8 °C (82.0 °F) (2018) | 23.4 °C (74.1 °F) (2016) | 19.7 °C (67.5 °F) (2004) | 20.0 °C (68.0 °F) (2018) | 21.9 °C (71.4 °F) (1995) | 25.4 °C (77.7 °F) (2013) | 27.6 °C (81.7 °F) (1988) | 28.6 °C (83.5 °F) (2009) | 30.8 °C (87.4 °F) (2017) | |
Penrith (Far-West) [180] | 34.9 °C (94.8 °F) (2019) | 32.7 °C (90.9 °F) (2004) | 30.5 °C (86.9 °F) (1998) | 28.6 °C (83.5 °F) (2018) | 23.5 °C (74.3 °F) (2016) | 20.1 °C (68.2 °F) (2004) | 20.3 °C (68.5 °F) (2018) | 21.9 °C (71.4 °F) (2009) | 26.3 °C (79.3 °F) (2013) | 28.9 °C (84.0 °F) (2013) | 31.8 °C (89.2 °F) (2009) | 33.5 °C (92.3 °F) (2019) |
Lowest monthly average high temperature | |||||||||||||
Parameter | Jan | Feb | March | April | May | June | July | Aug | Sept | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sydney CBD | 23.1 °C (73.6 °F) (1948) | 23.6 °C (74.5 °F) (1860) | 22.4 °C (72.3 °F) (1870) | 20.0 °C (68.0 °F) (1893) | 16.6 °C (61.9 °F) (1898) | 14.1 °C (57.4 °F) (1887) | 13.4 °C (56.1 °F) (1896) | 14.9 °C (58.8 °F) (1943) | 17.4 °C (63.3 °F) (1889) | 19.2 °C (66.6 °F) (1903) | 20.6 °C (69.1 °F) (1943) | 22.5 °C (72.5 °F) (1924) | |
Prospect Reservoir (Western Sydney) [181] | 24.0 °C (75.2 °F) (1965) | 24.9 °C (76.8 °F) (1966) | 22.6 °C (72.7 °F) (1967) | 21.1 °C (70.0 °F) (1983) | 18.1 °C (64.6 °F) (1968) | 14.6 °C (58.3 °F) (1968) | 14.4 °C (57.9 °F) (1966) | 15.7 °C (60.3 °F) (1967) | 17.6 °C (63.7 °F) (1966) | 19.9 °C (67.8 °F) (1966) | 22.5 °C (72.5 °F) (1971) | 23.4 °C (74.1 °F) (2011) |
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Highest daily rainfall | |||||||||||||
Parameter | Jan | Feb | March | April | May | June | July | Aug | Sept | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Sydney CBD [182] | 191.0 mm (7.5 in) (17 Jan 1988) | 243.6 mm (9.6 in) (3 Feb 1990) | 280.7 mm (11.1 in) (28 Mar 1942) | 191.0 mm (7.5 in) (29 Apr 1860) | 212.3 mm (8.4 in) (28 May 1889) | 150.6 mm (5.9 in) (11 Jun 1991) | 198.1 mm (7.8 in) (7 Jul 1931) | 327.6 mm (12.9 in) (6 Aug 1986) | 144.5 mm (5.7 in) (10 Sep 1879) | 161.8 mm (6.4 in) (13 Oct 1902) | 234.6 mm (9.2 in) (8 Nov 1984) | 126.0 mm (5.0 in) (14 Dec 1991) | |
Western Sydney (Prospect Reservoir) [183] | 161.2 mm (6.3 in) (31 Jan 2001) | 165.0 mm (6.5 in) (10 Feb 2020) | 153.9 mm (6.1 in) (20 Mar 1892) | 163.1 mm (6.4 in) (16 Apr 1946) | 314.2 mm (12.4 in) (28 May 1889) | 163.4 mm (6.4 in) (11 Jun 1991) | 143.5 mm (5.6 in) (10 Jul 1904) | 321.0 mm (12.6 in) (6 Aug 1986) | 96.5 mm (3.8 in) (2 Sep 1970) | 102.1 mm (4.0 in) (5 Oct 1916) | 126.2 mm (5.0 in) (14 Nov 1969) | 154.9 mm (6.1 in) (13 Dec 1910) | |
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