Severe weather events in Sydney

Last updated

Bushfire smoke following the Black Summer bushfires in December 2019 Bushfire smoke over the Sydney Opera House and Harbour Bridge in December 2019.jpg
Bushfire smoke following the Black Summer bushfires in December 2019

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]

Contents

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]

Temperatures

1800s

1900s

Persistently hot, dry conditions enforce water restrictions in the city. Bushfires smoke in Sydney Olympic Park (49240927768).jpg
Persistently hot, dry conditions enforce water restrictions in the city.

2000s

2010s

Car thermometer displaying a reading of 46degC on 7 January 2018 Sydney heat.jpg
Car thermometer displaying a reading of 46°C on 7 January 2018

2020s

Frosty morning in the Hawkesbury valley Sydney frosty morning.jpg
Frosty morning in the Hawkesbury valley

Bushfires and drought

Sydney CBD during the 2009 Australian dust storm Dust Storm - Sydney (15220403491).jpg
Sydney CBD during the 2009 Australian dust storm
Sydney skyline in bushfire haze, October 2013 View of Sydney skyline during bushfires (October 17, 2013) (10325799066).jpg
Sydney skyline in bushfire haze, October 2013

Rainstorms and windstorms

18th–19th century

20th century

1910s–1930s

A flooded street in Alexandria after a rainstorm (September 1934) SLNSW 42421 A flooded street in Alexandria South Sydney.jpg
A flooded street in Alexandria after a rainstorm (September 1934)
  • On 26 November 1912, a powerful hail and thunderstorm passed over Sydney, where 12.7 mm (0.50 in) of rain fell in 10 minutes flooding streets, in addition to a lightning killing one labourer at a tramway construction site. [98]
  • On 24 March 1914, Parramatta was flooded after 88.9 mm (3.50 in) of rain fell in just two hours. Parramatta railway station, businesses in Church Street and houses were partially submerged, and the Parramatta River was overflowed. [99]
  • On 25 November 1914, a severe thunderstorm which was likely accompanying a tornado, hit Sydney's northern and harbour-side suburbs, and destructed through a line of shopfronts near Lindfield railway station. [100]
  • On 6 October 1916, an east coast low brought 120.1 mm (4.73 in) of rain in 24 hours, flooding roads, overflowing rivers and damaging vegetable gardens. [101]
  • On 25 October 1919, a powerful hailstorm caused severe damage to buildings when it blocked gutters and drains, thus allowing rainwater to overspill into ceilings and basements. [100]
  • On 6 July 1931, Sydney was whipped by cyclonic winds and heavy rainfall, where it received 198.1 mm (7.80 in) of rain in 24 hours. In addition to thousands of pounds worth of damage to property, which included roofs and electricity, five deaths were recorded. [102]
  • On 25 January 1937, a tornado tore through the suburbs of Marrickville, Mascot, Botany and Matraville, where five people died and dozens were injured in falling buildings. [100]

1940s–1960s

The 8 cm (3.1in) hailstones hitting the water at Rose Bay during the 1947 hailstorm 1947 Sydney hailstorm boat.jpg
The 8 cm (3.1in) hailstones hitting the water at Rose Bay during the 1947 hailstorm
  • On 31 October 1940, a tornado created a 19 km (12 mi) path of damage, where it tore through thousands of homes, killing two people. A gust of 153 km/h was recorded. [100]
  • In the 1947 Sydney hailstorm, which occurred on 1 January 1947, a storm cell developed on the morning of New Year's Day, over the Blue Mountains, hitting the city and dissipating east of Bondi in the mid-afternoon. At the time, it was the most severe storm to strike the city since recorded observations began in 1792. The high humidity, temperatures and weather patterns of Sydney increased the strength of the storm. The cost of damages from the storm were, at the time, approximately GB£750,000 (US$3 million); this is the equivalent of around A$45 million in modern figures. The supercell dropped hailstones larger than 8 centimetres (3.1 in) in diameter, with the most significant damage occurring in the central business district and eastern suburbs of Sydney. [103]
  • On 15 June 1949, 94.1 mm (3.70 in) of rain fell in just one hour, the highest at that time since the records began. Flash flooding swamped businesses, shopfronts and homes. [104]
  • In June 1950, a series of east coast cyclones develop off the New South Wales coast during which Sydney registered its highest monthly rainfall on record, 642.7 mm (25.3 in). [105] [106]
  • On 26 July 1952, Sydney CBD received 203.2 mm (8.00 in) of rain and cyclonic winds caused local floods, two landslides in the north, traffic delays and as well as a death of a man. [107]
  • On 10 February 1956, heavy rain caused the Georges River to overflow, which led to five deaths, flooding 1,000 homes and leading to the evacuation of 8,000 people. Homes in Bankstown, Panania, East Hills, Milperra, Moorebank and the surrounds were submerged. Stranded residents were rescued by the police, the army and by civilians in row boats. [100]
  • On 9 July 1957, a tornado squall occurred at Warriewood and Narrabeen on the Northern Beaches that blew off house roofs and caused more than £40,000 ($80,000) worth of damage. [100]
  • On 23 November 1961, Penrith was flooded, with many properties and businesses being destroyed, after receiving half its annual average rainfall in just two days. [108] The Nepean River reached a height of 9.7 m (31.82 ft) after the area received 546 mm (21.5 in) of rain in two days. [109]

1970s–1990s

  • On 24 April 1974, the western suburbs endured severe flash flooding that resulted in $20 million worth of damage and one death, as a consequence of 200 mm (7.87 in) of rain falling in three days. [100]
  • On 10 March 1975, Sydney airport received 174.7 mm (6.88 in) of rainfall in six hours, in addition to flash flooding which caused more than $15 m worth of damage. [100]
  • On 10 November 1976, intense thunderstorms caused severe damage in around Lidcombe and Auburn, with tennis-ball size (6 cm) hail and violent winds that injured 10 people. Damage costs were $40 million. [100]
  • On 10–11 February 1978, a tornado tore through many homes in the Lower North Shore, injuring eight people. The damage cost was $15 million. [100]
  • Between 19 and 24 March 1978, after an intense low pressure cell developed on the Coral Sea, travelling southwards, heavy rainfall occurred in the east coast which overflowed the Hawkesbury River, thereby flooding nearby homes and damaging roads. Several weather stations in the Sydney metropolitan area reported daily rainfall totals in excess of 250 mm (9.84 in). [110]
  • On 8 November 1984, Sydney CBD saw 235 mm (9.25 in) of rain with 120.3 mm (4.74 in) falling at Observatory Hill in just one hour. Causing damage to homes in the Sydney Harbour and burying vehicles in mud, the storm was caused by a coastal trough with very high humidity values which in turn spawned very slow moving thunderstorms. [111] The cost of damages from the storm were, at the time, $80 million. [112]
  • On 6 August 1986, a record 327.6 mm (12.90 in) of rainfall was dumped on the city in 24 hours, causing severe floods, major traffic problems and damage in many parts of the metropolitan area. [113]
  • On 3 October 1986, ten people were injured and hundreds of homes were damaged after a hail up to 6 cm size hit the western suburbs. The total damage bill was $161 million. [111]
A lightning storm over Potts Point in 1991 Thunderstorm in sydney 2000x1500.png
A lightning storm over Potts Point in 1991
  • On 3 February 1990, Sydney CBD received its record 24 hour February rainfall at 243.6 mm (9.59 in), when ex-tropical cyclone Nancy was centred on Brisbane. [114]
  • On 18 March 1990, in around Auburn and Bankstown, large hail up to 8 cm diameter with strong winds and flash flooding caused $550 million worth of damage, where more than 2000 houses had window and roof damage. [115]
  • On 21 January 1991, the Northern Sydney area (Turramurra, Pymble and the surrounds) received hail 7 cm in size with winds up to 230 km/h, and as well as 60 mm (2.36 in) of rain in 30 minutes. With a damage cost of $670 million, the storm event damaged over 7000 houses from felled trees and floods. [115]
  • On 12 February 1992, in the western and northern suburbs, a storm caused $335 million worth of damage after rain, large hail and flash flooding battered over 500 houses. [115]
  • On 20 November 1994, a severe storm caused $29 million worth of damage in the Sydney region, namely in the north, where many trees were felled and houses wrecked. [100]
  • In the early hours of 30 August 1996, an east coast low ravaged Sydney, bringing destructive winds that damaged properties and heavy rainfall that caused flash flooding and road blockage. Turramurra received 160 mm (6.30 in) of rainfall in 24 hours, Epping at 143 mm (5.63 in) and the CBD at 127 mm (5.00 in). Wind gusts up to 160 km/h were recorded. Insurance payouts due to the storm were estimated to be up to $50 million. [116] [117]
  • On 7–8 August 1998, parts of Sydney and the Illawarra region received in excess of 300 mm (12 in) of rain over four days. [93]
The aftermath of the 1999 hailstorm on a suburban Sydney street 1999 Sydney hailstorm cardamage.jpg
The aftermath of the 1999 hailstorm on a suburban Sydney street
  • The 14 April 1999 hailstorm was a notable storm event in Sydney, which caused severe damage in many suburbs and killed one man when his boat was struck by lightning. The storm produced hailstones of up to 9 cm (3.5 in) in diameter and resulted in insurance losses of around A$1.7 billion in less than five hours. [118]

21st century

2000s–2010s

  • On 3 December 2001, the state of New South Wales recorded a wind gust of 174 km/h during a freak thunderstorm in Richmond. In addition, two schoolchildren were killed after a tree fell on their tent in the northern suburbs. [100]
  • A major storm in early June 2007 brought over 500 mm (19.69 in) of rainfall in 5 days in the Sydney CBD and the eastern suburbs. [119] [120]
  • On 9 December 2007, a powerful thunderstorm affected western Sydney with hail 7 cm in diameter. The State Emergency Service received over 6000 calls for assistance and the damage bill was $201 million. [100]
  • On 18 November 2013, an EF1 tornado hit Hornsby, a suburb in the Upper North Shore, where winds reached 140 kilometres per hour (87 mph). [121] The tornado's path was 2 km (1.2 mi) long and 50 m (160 ft) wide. [122] [123] Blowing off roofs and toppling large trees, the tornado injured a total of 12 people. [121]
  • On 15 October 2014, a rainstorm described as a "once-in-a-decade event" hit the Sydney region. Parts of Sydney received the heaviest amount of rain in a span of hours in decades. 94 mm (3.70 in) of rain fell in Strathfield in just over three hours. The winds were cyclonic in nature, with Sydney Airport having over 107 km/h (66 mph) gusts, reaching Category 1 strength. This event happened due to the formation of an east coast low, which ignited several other low pressure systems. [124]
More than 50cm of hail was dumped on 25 April 2015, turning streets into snow fields (Pagewood). Sydneyhail.jpg
More than 50cm of hail was dumped on 25 April 2015, turning streets into snow fields (Pagewood).
  • On 20 April 2015, Sydney recorded 119.4 mm (4.70 in) of rainfall, the most in any day since February 2002. Winds were "cyclonic" in nature, reaching 135 km/h (84 mph). Killing three people, this east coast low was formed with "a really pronounced upper level trough of cold air that had moved in from Victoria", Mr Sharpe said. [126] The maximum temperature was only 15.4 °C (60 °F), making it the coldest April day since 1983, according to BOM. [127]
  • On 16 December 2015, a tornado with a windspeed of 213 km/h tore along Sydney's southern coast, where it ripped off roofs, destroyed homes and overturned trucks. Kurnell and Bondi Junction were the most hard hit. [128]
  • On 5 June 2016, an east coast low brought heavy rainfall that passed the average total June rainfall of 132 mm (5.20 in). The deluge led to flash floods across the city and caused coastal erosion, in addition to five deaths being reported. Bankstown received its highest daily rainfall in 15 years, with 141 mm (5.55 in) of rain within the 24 hours. Meanwhile, Pennant Hills, Sydney Airport and Prospect Reservoir experienced their wettest June day since 1991. [129]
  • On 28 November 2018, a number of suburbs in the Sydney CBD recorded over 100 mm (3.94 in) of rainfall in just two hours from thunderstorms that formed due to an intense low pressure system, which came from the west, in what's been the city's wettest November day since 1984. [130] The heavy deluge caused flash flooding, submerging cars in the suburb of Redfern, alongside wind gusts that peaked over 90 km/h, which brought down trees and also contributed to the deaths of two people. [131] In Mosman on the North Shore 111 mm (4.37 in) of rain fell by 9am, making it the wettest spot in Sydney that day. [132]
  • On 9 January 2019, Sydney was hit by a lightning storm that was "one of the biggest in recent years", where several houses were struck. Blacktown was the worst affected by the lightning storm, with over 20 homes reporting roof damage. [133]
  • On 8 February 2019, intense thunderstorms, lightning and heavy rain caused significant damage to buildings, severe road flooding, which left 45,000 homes across Sydney without power. About 50 mm (1.97 in) fell in some inland suburbs in a span of just 30 minutes. Such heavy rainfall in a short period of time is expected once every ten years in the metropolitan area. [134]

2020s–present

  • Between 7 and 9 February 2020, the Sydney metropolitan area received its heaviest rain in 30 years. The storm brought vast flooding and strong winds that caused commuter chaos and left over 100,000 homes without power. [135] The city recorded around 391.6 mm (15.42 in) of rain within those three days, more than three times the average rainfall for February. Thousands of people living in depressed areas, such as those in Narrabeen and southwest of Sydney near Georges River, were told to evacuate due to billowing floodwaters and rising river levels. At least 200 people were rescued by emergency services during the stormy weekend. Warragamba Dam, which was only at 42% in capacity, reached as close to 70% after the deluge. [136] [137] The last time more than 300 mm (11.81 in) of rain fell in two days in the city was in 1992, in addition to being the wettest four-day period since 1990. [138]
  • In the late evening of 18 February 2020, over 60,000 lightning strikes hit the Sydney area, [139] with wind gusts over 100 km/h (62 mph) being recorded in some Sydney suburbs. In addition to a man being killed by a flying gas cylinder in The Rocks, the storm toppled trees, damaged properties and left tens of thousands of homes without power. [140]
Floodwaters swamp a picnic area in Penrith during the March 2021 New South Wales floods. 2021 floods.jpg
Floodwaters swamp a picnic area in Penrith during the March 2021 New South Wales floods.
  • Between 17 and 23 March 2021, many parts of Sydney received heavy rainfall in a storm that was described as "dangerous and threatening" by the Bureau of Meteorology, killing two people in the metropolitan area. [141] [142] 330.5 mm (13.01 in) and 359.2 mm (14.14 in) of rain fell in Sydney CBD and Penrith, respectively, in a span of six days, which led to mass floods. [143] In Chester Hill, a tornado damaged homes and toppled trees, leaving thousands without electricity. [144] Parramatta received enough rain to flood the site of the new Parramatta Powerhouse and as well as the Parramatta ferry wharf, which was overflowed after Parramatta River broke its banks. [145] Moreover, the Warragamba Dam began to spill, which was the first significant overflow of the reservoir since 1990. [146] Because of rising floodwaters, Nepean River and Hawkesbury River were overflowed, with areas in the suburbs nearby such as Richmond, Windsor and Penrith being evacuated. [147] The BOM had confirmed that flooding from Hawkesbury River was higher than a similar major flooding event in November 1961. [148]
  • On 19 December 2021, a storm with extreme winds of 130 km/h (81 mph) quickly swept across multiple suburbs in the Northern Beaches area. [149] [150] The storm caused a large amount of damage to property and powerlines, mostly due to trees toppling over from the wind, around 36,000 homes were left without power. [151] In Narrabeen, three people were struck by a tree in a parking lot, causing the death of one woman and leaving two others critically injured. [152] Volunteers from NSW SES worked alongside Fire and Rescue New South Wales and New South Wales Rural Fire Service to cleanup the damage left behind by the storm. [153]
  • On 22 February 2022, a month's worth of rain fell in less than a few hours in parts of the Sydney metropolitan area, which submerged streets and businesses, damaged road pavements and felled trees, in addition to flooding the Parramatta River and the nearby Powerhouse Museum site. Many suburbs recorded rainfall up to 100mm in the day, with 110mm falling in Marrickville (98mm of it in just two hours). [154] The 30-hour rainy event made Sydney have its wettest summer in 30 years (or since 1991/92). [155]
  • On 3–8 March 2022, thousands of people in parts of western Sydney were told to evacuate as the Hawkesbury River, Nepean River and Georges rivers began to rise after 174mm of rain fell over in Warragamba in less than 24 hours on the 3rd. There was major flooding in North Richmond and Windsor as the rising river waters submerged many parts of these rural suburbs. [156] On the 8th, a heavy deluge inundated streets in parts of southwestern Sydney and far western Sydney, killing two people in a car. Areas near the Georges River and Manly Dam were placed under an evacuation order by the State Emergency Service as floodwaters began to rise that day. [157] On this day, Mona Vale recorded 72 mm (2.83 in) in just two hours and Mosman received 128 mm (5.04 in) in the six hours until the afternoon. [158] Sydney recorded its wettest March on record with the rain gauge picking up 554 mm (21.81 in) of rain, beating 521.4 mm (20.53 in) from 1942 – this also brought Sydney's annual total up to 1,076.2 mm (42.37 in), which is the highest January-to-March total in records that date back to 1859. [159]
  • On 6–7 April 2022, after two days of heavy rain, residents in Woronora, Camden, Wallacia and Chipping Norton were issued with a flood evacuation order as the Woronora, Nepean and Georges Rivers began to rise. Streets in Manly Vale and Casula were heavily flooded, with roads to them being cut off. 107 mm (4.21 in) of rainfall was recorded in Little Bay in just six hours, as well as 107 mm (4.21 in) at Cronulla in just three hours overnight. [160] There were 25 flood rescues during the 24 hours of this event, with one death in Cobbitty. [161]
  • Between 3–5 July 2022, an east coast low brought around eight months of rain in four days in Sydney's southwest, causing major flood and evacuation orders, in addition to one death. [162] Camden, in Sydney's southwest, had received 197.4 mm (7.77 in) of rain between 2 and 3 July, with Sydney CBD accumulating 148.6 mm (5.85 in) over the span of four days. [163] Sydney recorded its wettest July on record that year where 404 mm (15.91 in) of rain fell during the month, surpassing the July 1950 record. [164]
  • On 18 February 2023, a severe windstorm ripped through the city that left over 60,000 people without power. In addition to that, the heavy winds felled trees in the metropolitan area and caused chaos at a sailing tournament where a boat's large sail was cast into the air, causing minor injuries among bystanders. [165]
  • On 19 February 2024, around 75,000 lightning strikes were detected within 100 km of the city. Of those lightning strikes, one struck and injured four people who were sheltering from the storm system in Royal Botanic Gardens. [166]
  • Between 5 and 6 April 2024, a black nor'easter dumped heavy rain in the Sydney region, killing one man in western Sydney. The deluge caused major public transport delays and flooding in the Northern Beaches. Penrith recorded its heaviest 24-hour rainfall on record for April at 167 mm (6.57 in). [167]
  • Between 17 and 18 January 2025, severe thunderstorms and gusty winds up to 120 km/h (75 mph) uprooted trees (which fell on properties), destroyed power lines and tore iron from rooftops across Sydney due to combination of a low-pressure system offshore and a coastal trough off the north coast. SES crews responded to about 2000 calls for help, in addition to two women and one man being injured. Those affected have received government support to fix homes, replace lost items and find emergency accommodation. [168]

Temperature extremes

Highest monthly average high temperature
ParameterJanFebMarchAprilMayJuneJulyAugSeptOctNovDec
Sydney CBD [169] 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) [170] 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) [171] 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
ParameterJanFebMarchAprilMayJuneJulyAugSeptOctNovDec
Sydney CBD23.1 °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) [172] 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)
Highest minimum (Sydney CBD) [173]

Rainfall extremes

Highest daily rainfall
ParameterJanFebMarchAprilMayJuneJulyAugSeptOctNovDec
Sydney CBD [173] 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) [174] 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)
Lowest monthly rainfall (Sydney CBD) [173]
Lowest monthly rainfall (Prospect Reservoir) [174]

See also

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<span class="mw-page-title-main">Climate of Dubai</span>

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Australian rivers have been subject to devastating floods in New South Wales, recorded since colonisation. Flooding in New South Wales has predominately been caused by excessive flows into rivers located in New South Wales and, to a lesser extent, excessive flows into rivers located in Queensland and Victoria. Floods can devastate local communities and impact the entire local economy.

<span class="mw-page-title-main">Australian east coast low</span> An extratropical cyclone on the coast of southeastern Australia

Australian east coast lows are extratropical cyclones or low-pressure systems on the coast of southeastern Australia that may be caused by both mid-latitude and tropical influences over a variety of levels in the atmosphere. These storms should not be confused with Australian region tropical cyclones which typically affect the northern half of the continent.

Perth, the capital city of the state of Western Australia, has a Mediterranean climate, with hot, dry summers and mild, wet winters. February is the hottest month of the year, with an average high of 31.7 °C (89.1 °F), and July is the coldest month of the year, with an average low of 8.1 °C (46.6 °F). 77.7% of rain in Perth falls between May and September. Perth has an average of 8.8 hours of sunshine per day, which equates to around 3,200 hours of annual sunshine, and 138.7 clear days annually, making it the sunniest capital city in Australia.

<span class="mw-page-title-main">Climate of Melbourne</span>

Melbourne, the state capital of Victoria and the second most populous city in Australia, has a temperate oceanic climate, with warm summers and cool winters. Melbourne is well known for its changeable weather conditions, mainly due to it being located on the boundary of hot inland areas and the cool southern ocean. This temperature differential is most pronounced in the spring and summer months and can cause strong cold fronts to form. These cold fronts can be responsible for varied forms of severe weather from gales to thunderstorms and hail, large temperature drops and heavy rain. Winters, while exceptionally dry by southern Victorian standards, are nonetheless drizzly and overcast. The lack of winter rainfall is owed to Melbourne's rain shadowed location between the Otway and Macedon Ranges, which block much of the rainfall arriving from the north and west.

<span class="mw-page-title-main">Climate of Brisbane</span>

Brisbane has a humid subtropical climate with year-round period with warm to hot temperatures. Brisbane generally experiences 3 months of mild cool winter from June to August.

<span class="mw-page-title-main">Black nor'easter</span> Type of storm occurring in southeastern Australia

A black nor'easter is a persistent and potentially violent north-easterly storm that occurs on the east coast of Australia, particularly from southeastern Queensland to southern New South Wales, usually between late spring and early autumn, about two days a year.

<span class="mw-page-title-main">2021 eastern Australia floods</span> Series of disastrous floods in Australia

Extreme rainfall on the east coast of Australia beginning on 18 March 2021 led to widespread flooding in New South Wales, affecting regions from the North Coast to the Sydney metropolitan area in the south. Suburbs of Sydney experienced the worst flooding in 60 years, and the events were described by NSW Premier Gladys Berejiklian as "one in 100-year" flooding. Far-southeast communities in Queensland were also affected by flooding and heavy rainfall, though to a lesser extent than those in New South Wales.

<span class="mw-page-title-main">Southeast Australian foehn</span> Dry wind in southeastern Australia

The southeast Australian foehn is a westerly foehn wind and a rain shadow effect that usually occurs on the coastal plain of southern New South Wales, and as well as in southeastern Victoria and eastern Tasmania, on the leeward side of the Great Dividing Range.

<span class="mw-page-title-main">Effects of the El Niño–Southern Oscillation in Australia</span>

Effects of the El Niño–Southern Oscillation in Australia are present across most of Australia, particularly the north and the east, and are one of the main climate drivers of the country. Associated with seasonal abnormality in many areas in the world, Australia is one of the continents most affected and experiences extensive droughts alongside considerable wet periods that cause major floods. There exist three phases — El Niño, La Niña, and Neutral, which help to account for the different states of ENSO. Since 1900, there have been 28 El Niño and 19 La Niña events in Australia including the current 2023 El Niño event, which was declared on 17th of September in 2023. The events usually last for 9 to 12 months, but some can persist for two years, though the ENSO cycle generally operates over a time period from one to eight years.

<span class="mw-page-title-main">2022 eastern Australia floods</span> February-April 2022 disaster in New South Wales and Queensland

The 2022 eastern Australia floods were one of the nation's worst recorded flood disasters with a series of floods that occurred from late February to early May in South East Queensland, the Wide Bay–Burnett and parts of coastal New South Wales. Brisbane suffered major flooding, along with the cities of Maryborough, Gympie, the Sunshine Coast, Caboolture, Toowoomba, Gatton, Ipswich, Logan City, the Gold Coast, Murwillumbah, Mullumbimby, Grafton, Byron Bay, Ballina, Lismore, the Central Coast and parts of Sydney.

<span class="mw-page-title-main">2022 New South Wales floods</span> July disaster in New South Wales

Heavy flooding broke out in the Central Coast and Sydney areas of New South Wales, Australia, beginning in early July 2022. Around 85,000 people were displaced by the flooding or requested to leave their homes by authorities. The floods' damage was significant because rain fell on land that was already saturated after months of previous heavy rainfall. It was the third major flood in 2022 for some areas in the eastern seaboard.

2022 was an extremely wet year for Australia, coming out of a back-to-back La Niña in the summer of 2021-22, a Negative Indian Ocean Dipole developing over the winter and a third back-to-back La Niña in the spring of 2022.

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  159. 1 2 Wettest March on record rewrites Sydney's climatology Archived 31 March 2022 at the Wayback Machine Ben Domensino from Weatherzone. 30 March 2022.
  160. ↑ Evacuation orders issued, homes isolated in Sydney as torrential rain causes flash flooding By Heath Parkes-Hupton, Carla Hildebrandt, and Jessica Kidd from ABC News. 7 April 2022.
  161. ↑ 'We're still in disbelief': Popular dog breeder Tony Ikin killed in Sydney floodwaters By Savannah Meacham and Adam Vidler from 9 News. 8 April 2022.
  162. ↑ "Australia floods: 50,000 on evacuation alert after deluge hits Sydney". BBC News . 5 July 2022. Retrieved 5 July 2022.
  163. ↑ "More rain expected as Sydney deals with major flooding". One News . 5 July 2022. Retrieved 5 July 2022.
  164. ↑ "404 mm breaks July rainfall record in Sydney". Sydney Morning Herald. 1 August 2022. Archived from the original on 1 August 2022. Retrieved 1 August 2022.
  165. ↑ Wild scenes as ferocious Sydney storm rips apart sailboat by Yahoo! News. 19 February 2023.
  166. ↑ "Music festival evacuated as wild storm sweeps through Sydney". www.SBS.com.au. SBS News . Retrieved 20 February 2023.
  167. ↑ Evacuation and extreme weather warnings issued after heavy rain falls across parts of Sydney and the Illawarra by ABC meteorologist Tom Saunders, Brooke Chandler and Jesse Hyland. ABC News. 6 April 2024.
  168. ↑ Angus Thomson (18 January 2025). "Sydney's wet weekend to continue as disaster recovery begins". Sydney Morning Herald. Retrieved 19 January 2025.
  169. ↑ Monthly mean maximum temperature for Sydney (Observatory Hill) Archived 28 November 2020 at the Wayback Machine by the Bureau of Meteorology
  170. ↑ Monthly mean maximum temperature for Bankstown Airport AWS Archived 17 April 2022 at the Wayback Machine by the Bureau of Meteorology
  171. ↑ Monthly mean maximum temperature for Penrith Lakes AWS Archived 20 June 2022 at the Wayback Machine by the Bureau of Meteorology
  172. ↑ Monthly mean maximum temperature for Prospect Reservoir Archived 12 September 2023 at the Wayback Machine by the Bureau of Meteorology
  173. 1 2 3 4 5 "Sydney (Observatory Hill) Period 1991-2020". Bureau of Meteorology. Archived from the original on 9 February 2020. Retrieved 14 April 2020.
  174. 1 2 3 "Climate statistics for Prospect Reservoir". Bureau of Meteorology. Archived from the original on 14 November 2021. Retrieved 8 August 2020.
  175. ↑ "Greater Sydney in July 2022: wettest on record". Bureau of Meteorology. Archived from the original on 20 March 2021. Retrieved 15 August 2022.
  176. ↑ "Greater Sydney in October 2022: Very wet; cooler than average days and warmer than average nights". Bureau of Meteorology. Archived from the original on 6 November 2022. Retrieved 6 November 2022.
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