Winter snow falls with some regularity above 900 metres (3,000 ft) on the Great Dividing Range but seldom as far north as the Darling Downs in southernmost Queensland, and in isolated parts of South Australia and Western Australia, but outside these areas, snow is an extremely rare occurrence.[1] Snow is rare even in the southernmost capitals like Melbourne and Hobart, falling less than once every decade, and in the other capitals it is unknown.
In New South Wales, the elevated regions of the Snowy Mountains experience an alpine climate, where the areas above 1,400 metres (4,600 ft) are subject to a consistent heavy winter snowpack. Heavy snow normally occurs to around 900 metres (3,000 ft) in most winters, especially on the western side of the ranges (on the South West Slopes), while lighter and more sporadic snowfalls usually occur to 700 metres (2,300 ft).
Kiandra, Cabramurra and Perisher Valley receive an average of 47.5, 53.2 and 60.2 snowy days annually, respectively[4] – elevations are 1,395 metres (4,577 ft), 1,475 metres (4,839 ft) and 1,735 metres (5,692 ft) in that order. For northern hemisphere comparison, Kiandra receives more annual snowy days than Toronto (41 days) and Harbin (45 days), with Cabramurra tying with Winnipeg (53 days) and Perisher Valley with Buffalo, New York (60 days).
In the Victorian Alps, Falls Creek, Mount Hotham and Mount Buller receive 61.2, 66.1 and 67.6 snowy days, respectively.[4] Elevations are 1,510 metres (4,950 ft), 1,750 metres (5,740 ft) and 1,707 metres (5,600 ft) in that order. For northern hemisphere comparison, Mount Hotham receives slightly more snowy days than Syracuse, New York (65.5 days), and Mount Buller receives almost the same amount of snowy days as Warsaw (68.0 days).
The former town of Aberfeldy averages 32.5 snowy days per annum at just 1,060 metres (3,480 ft)[4], making it the snowiest locality on mainland Australia, in addition to having more snowy days than northern hemisphere cities with colder winters like Chicago (28.2 days), Berlin (24.3 days) and even approaching those of Minneapolis (38.2 days).
Tasmanian Highlands
Snowcapped Mount Wellington, July 2011
In Tasmania, mountainous areas receive heavy snow above 1,000 metres (3,300 ft) every year, and due to its far southern latitude, this level frequently reaches 800 metres (2,600 ft), and at times 600 metres (2,000 ft) or even 400 metres (1,300 ft) in the state's Southwest region.[6]Mount Wellington which rises to 1,271 metres (4,170 ft) is frequently covered by snow, at times even in summer, receiving 57.3 days of snow annually.[7]
Butlers Gorge, Lake St Clair and Liawenee in the Central Highlands feature 27.1, 33.1 and 41.8 snow days a year, respectively.[8] Elevations are 666 metres (2,185 ft), 750 metres (2,460 ft) and 1,065 metres (3,494 ft) in that order.
Regional towns and cities
New South Wales and the Australian Capital Territory
In the Central West, the major regional city of Orange receives an average of 3.9 snowy days per annum. There are many smaller towns in the region that receive snow on an annual basis, such as Blayney, Millthorpe and particularly Oberon which sees an average of 6.2 snowy days annually. The last snowfall in Cowra, a town of just 300 metres (980 ft), occurred in 2015.[9][10] A freak snowfall had occurred in the Central West on 5 July 1900, bringing an impressive 1 ft 10 in (56 cm) of snow to Mudgee, while Bathurst measured at 68 centimetres (27 in) in the main street.[11][12]
Snow is quite rare in the Southern Highlands of the Illawarra due to its eastern location, though the last significant snowfall occurred in Berrima, Bowral and Mittagong in July 2015.[17][18][19] In 1947, the Macquarie Pass roadway was covered in a dusting of snow.[20] Further south in the nation's capital Canberra it snows once every 5 years, though snowfalls are common in the Monaro region to the far south, in towns such as Cooma, Bombala and particularly Nimmitabel which sees 8.0 snowy days annually.[4]
Following the Hume Highway further inland, it snows once every few winters in the regional city of Goulburn and in towns like Gunning and Yass. The northern and north-western parts of the region are substantially higher in elevation, with moderate to heavy snowfalls occurring most years in Crookwell and to a lesser extent Taralga.
West of the Great Dividing Range in southern New South Wales, particularly in the Riverina and South West Slopes, snow is observed to much lower altitudes than elsewhere in the state, being more exposed to cold south-westerly airmasses. Parkes, Forbes and Wagga Wagga, among others, have recorded snow on multiple occasions in the past, despite their very low elevation; snow has been observed to settle as low as 165 metres (541 ft) in Albury, most recently in July 1966.[21][22] In August 2019 there was snow on the ground in Tumut at 280 metres (920 ft), with reports of flakes as far north-west as Junee.[23] On 24 July 1936 a possible flurry of snow was reported in Hay in the Riverina's far west, which if verified would be the lowest known snowfall to have ever been observed in the state of New South Wales[24], at just 90 metres (300 ft) above sea level. Snow has been recorded on three separate occasions in Narrandera, 145 metres (476 ft), in August 1899, July 1901 and June 1908.[25]
Due to their latitude and exposure to cold south-westerly airmasses, snow regularly occurs to much lower elevations than in New South Wales, with some occurrences to sea level.
Snow over Ballarat, September 2020
In western and central Victoria it snows around once or twice a year in the major regional city of Ballarat, as well as in Kyneton and Strathbogie, while in Trentham it snows on 7.8 days per annum.[4][27] Snow is very rare in Bendigo to the north. Horsham and Hamilton have recorded significant snowfalls in 1882, 1901 and 1910.[28][29]
In Victoria's North-East, Beechworth snows about once a year, while the higher localities of Bogong, Tolmie and Woods Point receive 5.7, 8.7 and 7.8 snow days per annum[4], with occasional snowfalls in low-lying towns like Corryong. A heavy fall of snow was observed in Benalla on 31 May 1913.[30]
In East Gippsland, the locality of Bendoc averages 14.7 snowy days per annum, while Omeo sits at 4.7 days.
In southern Victoria and West Gippsland, there is a greater chance of late spring and summer snowfall, with an occurrence of snow on 25 December 2006 in the Dandenong Ranges, not more than 600 metres (2,000 ft) in elevation.[31] Snow to 400 metres (1,300 ft) or less is not uncommon during winter, particularly on the Strzelecki Ranges in the deep south of the mainland.
In Western Australia, Stirling Range (near Albany) records some snow, as it is the only mountain range far enough south and sufficiently elevated.[36][37] More rarely, snow can fall on the nearby Porongurup Range, with the last significant falls in October 1992 and June 1956. The most widespread low-level snow in Western Australia occurred on 26 June 1956 when snow was reported in Wongan Hills and Salmon Gums.[38]
The frequency and intensity of such events in southern Queensland have been decreasing significantly over the past 40 years and the most northerly occurrence of snow in this time frame has been the Bunya Mountains in southern Queensland, where light snowfall occurs every few years in some occasions.[46] In Stanthorpe, light snow is occasionally recorded, with the most significant snowfall in over 30 years occurring on 17 July 2015, where 8 centimetres (3 in) fell there and nearby areas that day.[47]Ballandean in south-east Queensland also saw snow on that day.[48]
Sea level snowfall
Tasmania
Snow in Hobart, August 2015
Whilst snow at sea level is a rare occurrence in mainland Australia, it is more occasionally recorded in western Tasmania (namely in the Southwest) where snowfalls at sea level can occur nigh to annually during the winter months; in the extreme event of November 2021, snow was recorded to sea level on Bruny Island. It is much rarer on the east coast of Tasmania due to being leeward of the snow-bearing westerlies.[49]
Launceston receives snowfall in the rare occasion, with snow falling in 1951, 1986, 2015 and 2020.[50][51]Dover, a coastal town in the southern fringe of Tasmania, features 2.3 snow days per year.[4] In Hobart CBD, the last major snowfalls occurred in 2015, 1986 and 1921.[52][53]
In Sydney, "snowfall" was last alleged on 28 June 1836, where British settlers in Hyde Park claimed to have woken up to "snow nearly 1 in (2.5 cm) deep" – However, after a fall of graupel in July 2008, the Bureau of Meteorology had doubted the 1836 "snow" account, stating that observers in that era lacked the technology to distinguish snow from soft hail.[56][57] Furthermore, melting snow (or sleet) was observed in the Sydney area in 1951 and 1986, though the Bureau also doubted those events had "true" snow.[58][59]
Climate statistics
Spencers Creek average snow depth chart from Snowy Hydro
The Australian Alps range between 1,778 mm (70 in) and 3,810 mm (150 in) of total precipitation during winter.[1] In 1973 temperatures remained too warm, while in 1982 it was too dry for much of a snow season. However, some other years have abundant snow – the Bureau cites 1981 as an example. The unpredictability of Australian snow conditions was highlighted in 2006 when severe drought and a poor snow season gave way to a "White Christmas" and abundant snow falls in the alpine regions of New South Wales, Victoria and Tasmania and even a low altitude snow fall on 25 December in the Dandenong Ranges on Melbourne's north-eastern fringe.[61]
Low altitude and recent susceptibility to high pressure ridging; as well as seasonal (early spring) dust storms in the Simpson Desert depositing red dust on the ranges (causing less UV reflection and therefore faster melting), keep the snow season relatively short (June–Oct). Heavy snow can fall however, at any time between April and December in the Australian High Country, with areas like Mount Dandenong receiving snow in December.[62] In New South Wales, a heavy natural snow season can see a base of up to 3.6 metres in August, at an elevation of 1830 m at Spencer's Creek, (near Charlotte Pass). Typically, depths will be lower than this.[63]
Climate change
Satellite image of unusually massive snow cover over the Southern Tablelands, June 2019
Australia's ski resorts are located near the top of some of the highest mountains in Australia, and there is therefore little scope to relocate to higher, colder areas if the existing ski fields become too warm.[3]
The Australian snow season varies from year to year. However, observations in 2024 show a declining trend in maximum snow depth within the past 70 years, with a downward tendency of about 0.4–0.6 cm per year since 1954. This is a result of increasing temperatures and decreasing cold frontal precipitation in winter, mostly caused by increases in worldwide greenhouse gas emissions, which drive the westerly wind belt further south. Therefore, climate models predict more declines in snow cover in the future. 2023 had a weak snow season owing to the remarkably warm and dry weather conditions from July to September.[64]
Since 1950, the Australian Alps annual average temperature has risen by around 1.4 degrees Celsius. By around 2050, in Victoria, peak snow depths at Falls Creek and Mount Hotham would decrease by 30%–70% for a low emissions scenario and by 45%–90% for a high emissions case.[64]
^Jones, M. C. (2003). "Climatology of cold outbreaks with snow over Tasmania". Australian Meteorology Magazine. 3 (52): 157–169. CiteSeerX10.1.1.223.253.
^Jones, M. C. (2003). "Climatology of cold outbreaks with snow over Tasmania". Australian Meteorology Magazine. 3 (52): 157–169. CiteSeerX10.1.1.223.253.