Tuesday, 4 January 2011 - Annual Climate Summary for New South Wales - Product code IDCKGC25R0
New South Wales in 2010: La Niña brings wettest year in half a century
- Third wettest year on record for NSW, wettest in over 50 years.
- Wettest year on record in the Murray-Darling Basin.
- 9th consecutive year with above average minimum temperatures.
- Slightly above average mean temperatures; coolest year since 1996.
NSW recorded 803.14mm of rainfall during 2010, well above the average of 559.0mm and the third wettest year on record. This is the highest rainfall recorded in the state in over fifty years, following the very strong La Niña events in 1956 (829.52) and 1950 (908.45), and slightly higher than the rainfall recorded during strong La Niña events in the 1970s. In addition, 2010 was the wettest year on record for the Murray-Darling Basin with a total rainfall of 794.27mm, slightly higher than the previous record set in the La Niña of 1956 (786.53mm).
Seventeen stations across NSW recorded their highest annual rainfall on record during 2010, with a further 103 recording their highest rainfall in at least twenty years. In almost all cases, the previous rainfall records were in strong La Niña years 1950 and 1956, or during the wet La Niña period between 1973 and 1976. Several stations also recorded over 2 metres of rainfall, reaching a maximum of 2914.4mm at Yarras (Mt Seaview) in the Central Tablelands. However, the rain on the mainland did not extend to offshore islands, with Norfolk Island recording its driest year in 114 years of record with just 776.7mm (previous record 1976).
The wet conditions were the result of a very strong La Niña event in the Pacific Ocean, in combination with a negative Indian Ocean Dipole event, both of which bring increased rainfall to Australia. In particular, Spring 2010 was the wettest on record for both NSW and Australia, with above average rainfall for six consecutive months July-December in addition to high rainfall in February and March as the 2009 El Niño event broke down.
Rainfall was highest in NSW west of the Great Dividing Range, with almost all areas experiencing falls in the top 10% of years and numerous records broken. In comparison, the east coast experienced close to average falls throughout the year, consistent with patterns in previous La Niña years, with Newcastle Nobbys Head recording its lowest annual rainfall since 1980. The heavy rainfall throughout the year resulted in several major flooding events in February, March, October and December, causing widespread damage and evacuations, with the State Emergency Services Minister declaring flood-related losses of as much as $500 million in NSW during the year.
The sustained rainfall throughout 2010 has broken the long-term drought in southeastern Australia, with no part of NSW declared in drought or marginal by the Department of Industry and Investment (DII) in December 2010. This is the lowest area of drought since May 2001 and a significant change from January 2010, when 81.8% of the state was in drought and a further 13.8% marginal. For more information on drought declarations see the DII.Some sites had their highest total rainfall on record.
Norfolk Island had its lowest total rainfall on record.
See a map of rainfall deciles.
NSW had close to average temperatures during 2010, with mean temperatures only 0.06 °C above the 1961-1990 average. This is significantly cooler than 2009, which was the warmest year on record in NSW, and the coolest year since 1996. In general, years of high rainfall (and most La Niña years), have lower daytime maximum temperatures. Hence the cooler temperatures in 2010 were primarily due to La Niña. However, this is significantly warmer than the previous strong La Niña years in 1974 and 1956, which had mean temperatures 0.51 °C and 1.17 °C below average respectively. This demonstrates the fact that although individual years may show variability, the underlying warming trend has not stopped, with global average temperatures in 2010 likely to be among the three hottest years on record (WMO).
Maximum temperatures during 2010 were 0.47 °C below average, the coolest since 1992, with much of northern and western NSW experiencing well below average maximum temperatures and nine stations recording their coolest maximums in over twenty years. This is a consequence of the high rainfall and subsequently increased cloud cover over NSW during the year, with particularly cooler temperatures at the end of the year with the fifth coldest December on record. July 2nd was also very cold, with Casino recording its coldest day on record at just 12.9 °C (previous record 13.3 °C).
However, the eastern seaboard of NSW continued to have above average temperatures during 2010, with Sydney Observatory Hill recording mean maximum temperatures of 22.6 °C, 0.9 °C above average. In addition, Lord Howe Island recorded its warmest year for maximum temperatures on record, likely related to the very warm sea surface temperatures off the Australian coastduring 2010.
In comparison, minimum temperatures in NSW were 0.60 °C above average during 2010, the 11th warmest on record, with almost all of the state recording above average minimums and the eastern half of NSW recording minimums in the top 10% of years. Higher night time temperatures are also typical for years of high rainfall and cloud cover. Three stations recorded their highest mean minimum temperatures on record during 2010, with a further five recording their warmest minimums since 1983, primarily in the Mid North Coast and Hunter regions. January 23 was a particularly warm night, with Sydney Airport, Yass and Goulburn recording their warmest nights on record and large parts of southeastern NSW recording minimums over 10 °C above average.
In addition, the average 3pm vapour pressure (a measure of humidity) in NSW was the second highest since records started in 1970 and the highest since the La Niña event of 1973/4, with both spring and winter the most humid on record for the state.
Some sites had their coldest day (lowest maximum temperature) on record.
Some sites had their highest mean daily maximum temperature on record.
See a map of maximum temperature anomalies.
Some sites had their lowest temperature on record.
Some sites had their warmest night (highest daily minimum temperature) on record.
Some sites had their highest mean daily minimum temperature on record.
See a map of minimum temperature anomalies.
A strong southerly airstream following a cold front on the 18th of January brought snowfalls to the Snowy Mountains with about 8 cm recorded at 2000 metres above sea level. Snow fell in Thredbo Village (elevation 1380 metres) on the morning of the 18th; at this location, snow normally falls in January once in every 3 years on average. Light snow fell as low as 900 metres in the Cooma-Bombala region with no previous records of snow falling in January at these locations (records since 1965).
Significant snow fell in the Snowy Mountains during August, with the highest equivalent rainfall since at least 2001 at Jindabyne and Thredbo. Although the Bureau of Meteorology does not record snowfall, external reports suggested this was the highest August total since 1992, with over 200 cm recorded during the month including over 50 cm on the 25th. Snowy Hydro recorded a peak August snow level at Spencers Creek of 192.5 cm.
December 18th and 19th were very cold, with temperatures more than 10 °C below average in much of the state, leading to falls of approximately 10 cm at Charlotte's Pass and the Snowy Mountains. This was also due to a strong cold front crossing the state.
East Coast Low
On May 30th an East Coast Low battered the NSW south coast. Strong winds and heavy rain damaged properties and left up to 9000 homes without power. Two highways (Princes Highway and Snowy Mountains Highway) were closed due to fallen trees. Narooma, Damleny and Bermagui were some of the worst hit areas. Damage included tiles and roofing iron lifted up, windows blown in and buildings flooded. Winds of up to 135km/hour were recorded at Montague Island.
A low pressure system that developed off the NSW coast on the 4th and 5th of September resulted in heavy rain and strong winds across much of NSW, with daily rainfall up to 157 mm at Thredbo Village on the 5th and wind gusts as high as 126 km/h at Bellambi AWS. Maximum gusts exceeded 100 km/h at Mt Ginini and Cabramurra on the 4th, with gusts exceeding 100 km/h recorded at Ulladulla, Nowra, Kiama, Bombala and Newcastle Nobbys on the 5th. The high winds caused extensive damage along the south coast, including roof damage, flying debris, and widespread power loss, while southern inland regions experienced substantial flooding. Over 3000 calls for assistance were received by the SES, with Natural Disasters declared for nine Local Government Areas in southern NSW.
On the 3rd of June, a severe thunderstorm developed out of a coastal trough in northern NSW. This event was associated with heavy hail and 24 hour rainfalls of up to 247 mm, causing significant damage to local properties. Associated with this system, a waterspout formed offshore from Lennox Head, near Ballina. This came ashore to form a tornado (F1-F2 on the Fujita scale), which moved northwards towards Ballina before again moving offshore. With winds estimated to be in excess of 150 km/h, this tornado and the associated thunderstorm resulted in the destruction of 12 houses and damage to a further 30, leaving 40 people homeless. Lennox Head was declared a natural disaster zone the following day.
Several major flooding events occurred during 2010 as a result of the heavy rainfall during the year, with particularly significant impacts on southern NSW.
January 2010: Following heavy rain in northeast NSW from 26 December to early January, numerous rivers experienced moderate to major flooding during the first 3 weeks of January. The most significant flooding was in the Castlereagh River at Coonamble (Central West Plains) especially around the 4th and 5th when the flood level reached the top of the levee bank causing evacuations in the town (39 warnings issued until 13th). The Castlereagh River peaked at 5.2 metres on the 4th causing major flooding to over 400 rural properties which required fodder and transport support for livestock. It was estimated the damage bill would exceed $3 million in the Coonamble area alone.
February 2010: On the 13th - 14th February, a low pressure trough brought significant rainfall to NSW, including the maximum daily rainfall for the year of 332 mm at Tuross Head. This caused significant flooding in the southeastern and northwestern parts of the state, with over 1500 distress calls to the SES and total damages exceeding $6 million in western regions. The Emergency Services Minister declared Natural Disaster zones in Bega and Eurobodalla in the southeast, and the Central Darling and Cobar shires in the northwest.
March 2010:Torrential rainfall from a monsoonal low over inland Queensland during late February/early March resulted in flooding in rural regions of northwestern NSW near the Paroo, Warego, Darling, Bokhara, Culgoa, Birrie and Narren Rivers. Up to 200 properties and 500 residents were isolated, with evacuations of residents from Weilmoringle and areas of Goodooga, with some areas affected by floodwaters well into April. This event also caused significant damage in Queensland and the Northern Territory, for more information please see the Bureau's Special Climate Statement issued 5th March 2010.
Severe rainfall in southwest NSW associated with the passage of an inland trough between the 5th and the 8th caused significant flooding in the Riverina, particularly near Wagga Wagga, exacerbating existing damage associated with the flooding events in February. Many major roads were closed; with over $1 million in damage from washed out gravel roads and over 100 calls for assistance to the SES. The NSW government declared a natural disaster in the Greater Hume and Central Darling areas on the 9th.
October 2010: Heavy rainfall on the north coast caused minor to moderate flooding in coastal districts on October 5, with several hundred people isolated by floodwaters between the 5th and 6th and leading to natural disaster declarations in 7 shires on the north coast. This event was followed by heavy rain between the 13th and 16th, causing widespread flooding in the Riverina and South West Slopes districts. Many major roads were closed as well as the rail corridor, with power outages, sixty flood rescues and over 1400 calls for assistance to the SES. Hundreds of people were evacuated during this event, particularly related to threat of dam failure at the Mannus Lake. Natural Disasters were declared in 18 shires including Albury and Wagga Wagga.
December 2010: Heavy rain during the last week of November and first weeks of December lead to substantial flooding, with widespread evacuations of towns including Wee Waa, Coonamble, Queanbeyan and Wagga Wagga. The Burrinjuck and Captains Flat dams were in danger of failure, with 135 flood rescues and over 2800 requests for assistance to the SES between November 29 and December 13. Forty-one individual shires across the state had Natural Disasters declared during early December, with major infrastructure damage in key rural centres including Orange, Dubbo, Wagga Wagga and Tamworth. Reports suggested this was the most severe flooding in 50 years in some regions. This was further exacerbated in late December by rainfall in northern NSW and Queensland, which progressed down river systems during late December and early January and resulted in 700 further requests for assistance between the 13th and 29th of December.
For a list of natural disaster declarations in NSW please see Emergency Management NSW.
|Extremes in 2010|
45.1 °C at Pooncarie Mail Agency on 10 Jan|
|Warmest days on average||
26.8 °C at Mungindi Post Office|
|Coolest days on average||
10.3 °C at Charlotte Pass (Kosciusko Chalet)|
-4.6 °C at Thredbo AWS on 25 Aug|
-19.6 °C at Charlotte Pass (Kosciusko Chalet) on 20 Jul|
|Coolest nights on average||
2.4 °C at Thredbo Village|
|Warmest nights on average||
17.5 °C at Lord Howe Island Aero|
31.6 °C at Fowlers Gap AWS on 12 Jan|
31.6 °C at Ivanhoe Aerodrome AWS on 12 Jan
|Warmest on average overall||20.3 °C at Byron Bay (Cape Byron AWS)
|Coolest on average overall||
8.0 °C at Thredbo Village
2914.4 mm at Yarras (Mount Seaview)|
|Wettest day||332.0 mm at Tuross Head (Nelson Pde) on 16 Feb|
|Highest wind gust|| 135 km/h at Montague Island Lighthouse on 30 May|
|Record highest total annual rainfall|
for 2010 (mm)
|Tarcutta Post Office||1111.6||1061.5||in 1956||135||663.9|
|Hillston Airport||815.6||711.2||in 1974||123||366.3|
|Henty Post Office||1144.5||1053.3||in 1974||106||590.9|
|Ivanhoe (Kilfera)||616.0||547.8||in 1932||86||281.9|
|Wentworth (Willow Point)||572.4||525.1||in 1974||77||257.6|
|Bowning (Wanganui)||1096.4||1089.9||in 1974||70||663.9|
|Wagga Wagga AMO||1019.4||989.4||in 1956||68||566.3|
|Yarras (Mount Seaview)||2914.4||2881.3||in 1950||54||1681.0|
|Tharwa General Store||1027.6||921.6||in 1992||49||622.7|
|Cobar MO||685.4||684.8||in 1973||48||402.4|
|Orange Agricultural Institute||1592.0||1514.2||in 1973||42||929.7|
|Orange Airport Comparison||1528.6||1393.0||in 1973||41||898.0|
|Merriwa (Roscommon)||947.2||885.7||in 2007||35||602.1|
|Goulburn TAFE||914.2||910.6||in 1984||34||626.2|
|Ivanhoe (Baden Park)||614.0||573.7||in 1906||34||282.3|
|Broken Hill (Koralta)||513.3||393.3||in 2000||20||231.6|
|Parkes Airport AWS||1087.8||955.3||in 1973||20||644.2|
|Record lowest total annual rainfall|
for 2010 (mm)
|Norfolk Island Aero||783.7||784.2||in 1976||115||1297.0|
|Record lowest annual daily maximum temperature|
Lowest daily maximum
in 2010 (°C)
|Casino Airport||12.9||on 2 Jul||13.3||on 11 Jul 1997||44||26.8|
|Record highest annual mean daily maximum temperature|
Mean daily maximum
for 2010 (°C)
|Lord Howe Island Aero||22.6||22.5||in 2009||21||22.1|
|Record highest annual daily minimum temperature|
Highest daily minimum
in 2010 (°C)
|Sydney Airport AMO||25.8||on 23 Jan||25.7||on 15 Jan 1978||72||13.4|
|Yass (Linton Hostel)||26.0||on 23 Jan||= 26.0||on 27 Jan 1981||46||7.2|
|Goulburn TAFE||25.3||on 23 Jan||25.0||on 10 Jan 1979||38||7.4|
|Record lowest annual temperature|
in 2010 (°C)
|Prospect Reservoir||-0.8||on 30 Jun||-0.6||on 17 Jul 2007||46||12.2|
|Record highest annual mean daily minimum temperature|
Mean daily minimum
for 2010 (°C)
|Newcastle Nobbys Signal Station AWS||15.5||15.4||in 2009||142||14.2|
|Yarras (Mount Seaview)||12.9||= 12.9||in 1990||40||11.7|
|Nelson Bay (Nelson Head)||16.1||= 16.1||in 2009||21||13.9|
|Summary statistics for 2010|
|Western (Far Northwest) (district 46)|
|Fowlers Gap AWS||25.0||42.5||22 Jan||-0.8||28 Jun||522.8|
|Tibooburra Airport||25.7||43.3||26 Jan||14.1||0.5||29 Jun||507.4|
|Tibooburra Post Office||26.0||-1.4||43.0||22 Jan||14.2||+0.3||-0.1||28 Jun||591.6||225.3||v high||263%|
|White Cliffs AWS||25.4||43.4||22 Jan||13.7||1.2||5 Jul||591.4|
|White Cliffs Post Office||25.5||-1.4||42.8||12 Jan||-0.2||29 Jun||555.2||247.9||v high||224%|
|Wilcannia (Reid St)||25.4||-1.2||43.2||22 Jan||12.1||+0.1||-1.1||8 Jul||548.6||260.8||v high||210%|
|Wilcannia Aerodrome AWS||25.4||44.0||12 Jan||11.9||-1.7||5 Jul||606.0|
|Western (Lower Darling) (district 47)|
|Broken Hill (Patton Street)||23.6||-0.7||42.3||22 Jan||12.4||+0.5||1.8||6 Jul||540.2||255.2||v high||212%|
|Broken Hill Airport AWS||23.4||-1.0||41.6||22 Jan||11.6||-0.1||-1.0||6 Jul||472.6||249.3||v high||190%|
|Lake Victoria Storage||23.8||+0.1||43.5||10 Jan||10.8||0.0||-2.1||5 Jul||574.9||261.3||v high||220%|
|Menindee Post Office||25.2||-0.7||44.2||12 Jan||12.3||+1.0||0.2||7 Aug||437.2||242.8||v high||180%|
|Pooncarie Mail Agency||25.1||45.1||10 Jan||11.4||-0.8||17 Aug||554.0||267.5||v high||207%|
|Western (Upper Darling) (district 48)|
|Brewarrina Hospital||25.8||-1.8||40.6||27 Jan||13.0||+0.4||-2.5||29 Jun||722.0||415.5||v high||174%|
|Cobar Airport AWS||24.3||41.7||27 Jan||11.6||-3.0||29 Jun||583.4|
|Cobar MO||24.3||-0.9||42.4||12 Jan||12.5||-0.3||0.0||29 Jun||685.4||402.4||highest||170%|
|Lightning Ridge Visitors Information Cen||26.4||40.0||28 Jan||13.5||-3.5||30 Jun||847.0|
|Wanaaring Post Office||26.3||42.5||26 Jan||-1.2||29 Jun||594.2||279.8||v high||212%|
|Western (Southwest Plains) (district 49)|
|Balranald (RSL)||23.5||-0.8||44.5||11 Jan||10.7||+0.7||-0.8||17 Aug||691.6||322.6||v high||214%|
|Ivanhoe Aerodrome AWS||24.1||43.9||12 Jan||12.1||0.3||8 Jul||625.0|
|Ivanhoe Post Office||25.0||-1.0||44.7||12 Jan||11.2||+0.5||-2.0||8 Jul||727.1||304.2||v high||239%|
|Central Western Plains (South) (district 50)|
|Condobolin Airport AWS||23.9||41.3||12 Jan||10.6||-2.2||13 Jun||713.6|
|Peak Hill Post Office||23.7||-0.7||40.4||23 Jan||12.7||+0.8||-1.1||30 Jun||968.7||562.7||v high||172%|
|West Wyalong Airport AWS||22.8||41.3||12 Jan||10.3||-1.4||13 Jun||895.6|
|Central Western Plains (North) (district 51)|
|Coonamble Airport AWS||24.8||39.4||24 Jan||11.6||-2.5||30 Jun||1019.4|
|Nyngan Airport||24.9||-0.8||41.6||23 Jan||12.3||+0.6||-2.0||30 Jun||749.6||446.1||v high||168%|
|Trangie Research Station AWS||24.1||-0.4||41.1||26 Jan||11.5||+0.7||-3.3||29 Jun||894.0||501.3||v high||178%|
|Northwest Plains (West) (district 52)|
|Mungindi Post Office||26.8||-0.9||40.5||28 Jan||-2.0||29 Jun||771.1||506.5||v high||152%|
|Walgett Airport AWS||26.0||40.5||28 Jan||11.6||-5.2||30 Jun||815.2|
|Northwest Plains (East) (district 53)|
|Moree Aero||25.4||39.0||28 Jan||12.9||-3.3||28 Jun||649.8|
|Northwest Slopes (North) (district 54)|
|Barraba Post Office||24.1||-0.3||39.1||24 Jan||-5.6||30 Jun||826.0||689.3||high||120%|
|Northwest Slopes (South) (district 55)|
|Gunnedah Pool||24.8||-1.1||38.6||13 Jan||12.4||+1.5||-2.2||30 Jun||1004.5||620.2||v high||162%|
|Gunnedah Resource Centre||24.0||-0.5||37.3||24 Jan||12.8||+0.7||-0.7||29 Jun||1014.0||642.6||v high||158%|
|Quirindi Post Office||24.2||-0.4||38.6||13 Jan||10.0||+1.1||-4.6||30 Jun||883.7||686.0||high||129%|
|Tamworth Airport AWS||24.0||37.6||22 Jan||10.4||-4.1||30 Jun||1017.8|
|Woolbrook (Danglemah Road)||19.9||-0.6||33.0||24 Jan||7.0||+1.6||-8.5||30 Jun||1027.3||783.3||v high||131%|
|Northern Tablelands (West) (district 56)|
|Armidale (Tree Group Nursery)||19.3||32.6||24 Jan||6.9||-11.2||30 Jun||823.2|
|Armidale Airport AWS||18.5||32.3||24 Jan||8.0||-6.0||29 Jun||865.8|
|Glen Innes Ag Research Stn||18.8||-0.7||31.7||24 Jan||8.0||+0.7||-6.8||29 Jun||941.1||844.7||high||111%|
|Glen Innes Airport AWS||19.0||31.8||24 Jan||7.1||-9.9||29 Jun||1158.0|
|Glen Innes Post Office||19.6||-0.6||33.2||24 Jan||8.9||+1.6||-5.9||29 Jun||925.9||858.5||average||108%|
|Guyra Hospital||17.2||-0.4||31.0||24 Jan||6.9||+0.4||-5.0||29 Jun||1027.9||921.7||high||112%|
|Inverell (Raglan St)||23.0||35.3||27 Jan||8.8||-6.6||29 Jun||825.2|
|Tenterfield (Federation Park)||34.0||26 Jan||8.6||+0.6||-6.5||29 Jun||1016.3||851.1||high||119%|
|Northern Tablelands (East) (district 57)|
|Tabulam (Muirne)||21.4||-0.9||35.3||26 Jan||12.5||-0.1||2.8||30 Jun||1762.6||1263.0||v high||140%|
|Upper North Coast (district 58)|
|Ballina Airport AWS||24.5||36.8||18 Jan||15.2||4.5||28 Aug||2239.0|
|Byron Bay (Cape Byron AWS)||23.6||32.2||18 Jan||17.1||9.0||4 Jul||2105.0|
|Casino Airport||25.4||-1.4||38.6||26 Jan||14.5||+1.3||2.8||7 Aug||1448.0||1098.0||high||132%|
|Casino Airport AWS||24.8||38.3||26 Jan||14.3||1.9||30 Jun||1468.6|
|Evans Head RAAF Bombing Range AWS||24.3||37.8||15 Feb||15.7||5.6||30 Jun||1890.0|
|Grafton Airport AWS||25.1||37.6||26 Jan||13.3||-1.2||30 Jun||1351.8|
|Grafton Olympic Pool||25.7||-0.1||37.5||26 Jan||14.5||+0.8||1.0||30 Jun||1186.5||1069.3||average||111%|
|Grafton Research Stn||25.1||37.7||26 Jan||14.4||1.4||30 Jun||1081.0||995.9||average||109%|
|Lismore (Richmond Hill)||24.7||37.4||27 Jan||14.9||4.4||30 Jun||1663.0|
|Murwillumbah (Bray Park)||25.0||-0.8||37.2||18 Jan||15.4||+1.0||3.8||12 Jun||2102.6||1609.8||high||131%|
|Yamba Pilot Station||23.7||+0.4||30.6||17 Dec||5.7||30 Jun||1741.3||1461.2||high||119%|
|Lower North Coast (district 59)|
|Coffs Harbour MO||23.6||+0.3||33.2||10 Dec||14.7||+0.7||1.3||30 Jun||1995.4||1687.9||high||118%|
|Dorrigo (Old Coramba Rd)||19.4||32.3||26 Jan||10.3||-2.5||30 Jun|
|Kempsey (Wide Street)||24.8||-0.3||36.1||23 Feb||13.5||+1.4||1.8||22 Aug||1167.1||1214.7||average||96%|
|Kempsey Airport AWS||24.5||36.1||26 Jan||12.3||-2.0||30 Jun||1096.4|
|South West Rocks (Smoky Cape Lighthouse)||23.9||+0.7||33.0||23 Feb||6.9||3 Jul||1423.4||1486.4||average||96%|
|Manning (district 60)|
|Forster - Tuncurry Marine Rescue||22.8||34.0||23 Feb||14.7||5.8||30 Jun||900.3||1216.8||low||74%|
|Port Macquarie Airport AWS||23.7||35.1||23 Feb||13.3||1.0||30 Jun||1230.4|
|Taree Airport AWS||24.0||38.0||23 Jan||13.3||0.4||30 Jun||899.7|
|Yarras (Mount Seaview)||23.8||-0.5||39.4||23 Jan||12.9||+1.2||-1.0||30 Jun||2914.4||1681.0||highest||173%|
|Hunter (district 61)|
|Cessnock Airport AWS||23.7||41.4||23 Jan||11.2||-1.4||30 Jun||856.8|
|Cooranbong (Lake Macquarie AWS)||23.5||41.8||23 Jan||11.7||-2.8||30 Jun||965.4|
|Gosford (Narara Research Station) AWS||23.0||0.0||40.9||23 Jan||11.9||+0.8||-1.5||30 Jun|
|Jerrys Plains Post Office||24.7||-0.5||41.6||23 Jan||11.5||+0.9||-0.7||28 Jun||774.9||644.1||high||120%|
|Maitland Visitors Centre||42.0||23 Jan||12.3||-0.5||29 Jun||814.5|
|Mangrove Mountain AWS||21.6||39.2||23 Jan||11.6||0.2||22 Jul||828.0|
|Merriwa (Roscommon)||22.6||38.1||26 Jan||9.5||-4.6||28 Jun||947.2||602.1||highest||157%|
|Murrurundi Gap AWS||19.4||33.8||13 Jan||10.7||-0.3||16 Jul||975.8|
|Murrurundi Post Office||22.3||-1.1||36.9||13 Jan||9.3||+0.8||-3.6||29 Jun||1131.4||834.1||v high||136%|
|Nelson Bay (Nelson Head)||22.7||-0.2||34.9||12 Feb||16.1||+2.2||7.9||30 Jun||1127.1||1346.7||average||84%|
|Newcastle Nobbys Signal Station AWS||22.1||+0.3||39.6||23 Jan||15.5||+1.3||5.9||30 Jun||771.0||1126.4||v low||68%|
|Peats Ridge (Waratah Road)||21.9||0.0||39.8||23 Jan||12.0||+0.7||1.1||29 Jun||1157.4||1242.8||average||93%|
|Scone Airport AWS||23.6||37.9||13 Jan||10.2||-4.8||30 Jun||764.2|
|Singleton STP||24.2||41.8||23 Jan||11.2||-1.0||1 Jul||642.7|
|Williamtown RAAF||23.8||+0.8||42.2||23 Jan||12.8||+0.4||-1.8||30 Jun||952.0||1125.0||low||85%|
|Central Tablelands (North) (district 62)|
|Gulgong Post Office||22.3||-0.8||37.8||26 Jan||10.3||+0.7||-4.8||30 Jun||1114.7||651.6||v high||171%|
|Mudgee Airport AWS||21.4||37.0||26 Jan||9.1||-6.7||30 Jun||1152.4|
|Nullo Mountain AWS||15.6||30.8||12 Jan||8.1||-3.4||29 Jun||1535.2|
|Central Tablelands (South) (district 63)|
|Bathurst Agricultural Station||20.0||+0.2||36.2||12 Jan||7.2||+0.5||-6.7||30 Jun||1080.6||638.0||v high||169%|
|Bathurst Airport AWS||19.7||35.9||12 Jan||7.5||-5.7||30 Jun||1067.4|
|Katoomba (Murri St)||17.2||+0.5||34.3||12 Jan||8.8||+0.8||-1.8||30 Jun||1705.0||1402.2||high||122%|
|Lithgow (Cooerwull)||17.8||34.2||12 Jan||7.3||-6.8||22 Jul||969.4||785.7||high||123%|
|Mount Boyce AWS||16.5||33.9||12 Jan||8.3||-3.0||29 Jun||1199.0|
|Oberon (Springbank)||16.0||-0.9||33.0||13 Jan||-5.6||28 Jun||1228.0||844.8||v high||145%|
|Orange Agricultural Institute||17.5||-0.5||32.5||23 Jan||7.7||+0.5||-4.2||30 Jun||1592.0||929.7||highest||171%|
|Orange Airport AWS||17.2||34.2||23 Jan||6.9||-5.4||30 Jun||1580.4|
|Orange Airport Comparison||17.5||-0.1||34.0||22 Jan||7.3||+1.1||-4.8||30 Jun||1528.6||898.0||highest||170%|
|Springwood (Valley Heights)||21.9||40.3||23 Jan||12.1||0.0||30 Jun||1289.0||1091.3||high||118%|
|Central Western Slopes (North) (district 64)|
|Coonabarabran (Namoi Street)||22.3||-1.4||36.1||24 Jan||8.3||+0.9||-7.0||30 Jun||1468.4||754.5||v high||195%|
|Coonabarabran Airport AWS||21.1||35.8||24 Jan||11.3||-0.5||28 Jun||1218.0|
|Dunedoo Post Office||23.1||-0.8||39.0||26 Jan||10.8||+1.2||-4.5||30 Jun||1130.2||616.4||v high||183%|
|Central Western Slopes (South) (district 65)|
|Cowra Airport AWS||22.6||40.7||22 Jan||9.4||-2.5||13 Jun|
|Cowra Airport Comparison||22.6||-0.5||41.2||22 Jan||9.6||+1.3||-2.9||28 Jun||954.0||597.3||v high||160%|
|Dubbo Airport AWS||23.2||39.6||26 Jan||10.7||-4.0||30 Jun|
|Forbes Airport AWS||23.3||41.1||12 Jan||10.0||-3.1||22 Jul||944.8|
|Parkes (Macarthur Street)||23.4||0.0||42.0||23 Jan||11.2||+0.3||-2.5||28 Jun||960.4||583.9||v high||164%|
|Parkes Airport AWS||22.6||41.0||23 Jan||10.0||-4.0||22 Jul||1087.8||644.2||highest||169%|
|Wellington (Agrowplow)||23.3||-1.1||39.0||26 Jan||10.4||+1.0||-4.3||30 Jun||1078.6||616.9||v high||175%|
|Metropolitan (East) (district 66)|
|Bankstown Airport AWS||23.4||+0.3||42.8||23 Jan||12.6||+0.6||-0.7||30 Jun||802.0||874.1||average||92%|
|Canterbury Racecourse AWS||22.9||42.3||23 Jan||12.6||-0.9||30 Jun||903.6|
|Holsworthy Control Range||23.4||42.7||23 Jan||11.7||-2.6||30 Jun||836.4|
|Parramatta North (Masons Drive)||23.4||+0.1||42.3||23 Jan||12.6||+0.4||1.0||30 Jun||932.1||962.1||average||97%|
|Sydney (Observatory Hill)||22.6||+0.9||41.3||23 Jan||15.0||+1.2||4.3||30 Jun||1153.8||1214.0||average||95%|
|Sydney Airport AMO||22.9||+0.7||42.5||23 Jan||14.9||+1.5||3.2||30 Jun||1040.2||1082.1||average||96%|
|Sydney Olympic Park (Sydney Olympic Pk A||23.6||42.9||23 Jan||14.3||2.0||30 Jun||956.8|
|Terrey Hills AWS||21.5||40.3||23 Jan||13.3||0.9||30 Jun|
|Metropolitan (West) (district 67)|
|Badgerys Creek AWS||23.4||43.0||23 Jan||11.3||-3.0||30 Jun||829.2|
|Horsley Park Equestrian Centre AWS||23.3||42.5||23 Jan||12.2||-1.8||30 Jun||713.6|
|Liverpool (Michael Wenden Centre)||23.8||42.6||23 Jan||11.7||-2.4||30 Jun||865.8|
|Prospect Reservoir||23.7||+0.6||42.5||23 Jan||12.7||+0.5||-0.8||30 Jun||866.8||870.9||average||100%|
|Richmond RAAF||23.7||43.3||23 Jan||11.4||-4.8||30 Jun||714.0|
|Illawarra (district 68)|
|Albion Park (Wollongong Airport)||22.3||41.0||23 Jan||12.0||-0.9||28 Jun||1057.8|
|Bellambi AWS||21.3||35.9||23 Jan||14.9||5.4||30 Jun||1151.0|
|Bowral (Parry Drive)||18.3||-0.5||35.4||12 Jan||9.0||+1.2||-3.0||28 Jun||1153.1||933.4||high||124%|
|Camden Airport AWS||23.7||+0.1||42.6||23 Jan||10.8||+0.6||-3.9||30 Jun|
|Campbelltown (Mount Annan)||23.8||42.8||23 Jan||11.0||-3.0||30 Jun|
|Jervis Bay (Point Perpendicular AWS)||20.5||35.5||23 Jan||14.5||6.4||8 Aug||1617.0|
|Nowra RAN Air Station AWS||22.1||40.2||23 Jan||11.7||1.5||18 Aug||1031.2|
|South Coast (district 69)|
|Batemans Bay (Catalina Country Club)||21.6||36.2||21 Feb||10.3||-1.5||29 Jun||1074.3|
|Braidwood Racecourse AWS||18.9||38.2||12 Jan||6.6||-5.2||28 Jun||859.4|
|Green Cape AWS||19.6||30.1||9 Jan||13.4||5.9||29 Jun|
|Merimbula Airport AWS||20.8||37.0||21 Feb||10.0||0.0||1 Jul||984.2|
|Montague Island Lighthouse||19.4||0.0||29.9||22 Jan||14.3||+0.5||5.6||14 Jun|
|Moruya Airport AWS||21.3||37.0||21 Feb||10.5||-3.0||29 Jun||985.4|
|Moruya Heads Pilot Station||20.5||+0.1||34.8||21 Feb||12.3||+1.0||2.8||29 Jun||1050.5||954.4||high||110%|
|Narooma Vmr||20.1||31.6||22 Jan||12.7||0.0||3 May||1310.4||914.3||high||143%|
|Nerriga Composite||19.4||+0.3||37.7||12 Jan||6.8||+0.3||-6.7||28 Jun||949.0||769.1||high||123%|
|Ulladulla AWS||20.3||36.9||23 Jan||13.5||5.0||29 Jun|
|Southern Tablelands (Goulburn-Monaro) (district 70)|
|Bombala (Therry Street)||19.2||+0.8||37.7||12 Jan||5.5||+0.7||-6.8||21 Jul||785.0||643.1||high||122%|
|Bombala AWS||17.4||37.3||12 Jan||5.7||-5.4||21 Jul|
|Canberra Airport||20.3||39.8||12 Jan||7.3||-5.0||28 Jun||959.6|
|Cooma Airport AWS||17.7||37.3||11 Jan||4.4||-9.2||29 Jun||627.4||499.7||high||126%|
|Cooma Visitors Centre||19.0||-0.4||38.9||10 Jan||-8.6||21 Jul||720.2||538.2||high||134%|
|Goulburn Airport AWS||19.2||37.7||12 Jan||6.8||-6.9||28 Jun||857.2|
|Goulburn TAFE||19.2||-0.5||37.0||12 Jan||8.0||+0.6||-4.7||28 Jun||914.2||626.2||highest||146%|
|Taralga Post Office||18.7||+0.6||37.0||12 Jan||6.3||+0.3||-6.9||28 Jun||966.5||803.4||high||120%|
|Tidbinbilla Nature Reserve||19.2||+0.2||37.0||12 Jan||7.4||+0.9||-5.5||29 Jun||1298.4||931.3||v high||139%|
|Tuggeranong (Isabella Plains) AWS||20.3||38.6||12 Jan||7.5||-6.7||29 Jun|
|Yass (Linton Hostel)||20.9||+0.2||39.0||12 Jan||-4.6||28 Jun||1024.9||649.4||v high||158%|
|Southern Tablelands (Snowy Mountains) (district 71)|
|Charlotte Pass (Kosciusko Chalet)||10.3||+0.5||26.0||11 Jan||-19.6||20 Jul||1971.7||1969.2||average||100%|
|Thredbo Village||13.7||+0.2||29.7||12 Jan||2.4||+0.5||-11.5||6 Aug||2625.3||1765.3||v high||149%|
|Southwest Slopes (South) (district 72)|
|Albury Airport AWS||21.9||42.4||12 Jan||9.7||-2.0||14 Jun||916.4|
|Cabramurra SMHEA AWS||12.1||29.1||22 Jan||5.1||-5.0||29 Jun|
|Hume Reservoir||21.9||+0.4||41.9||12 Jan||10.9||+1.0||0.2||14 Jun||1001.6||693.8||v high||144%|
|Khancoban AWS||20.7||41.1||12 Jan||7.7||-4.0||14 Jun||1333.6|
|Tumbarumba Post Office||19.4||-0.2||37.5||22 Jan||-5.0||13 Jun||1384.3||977.1||v high||142%|
|Wagga Wagga AMO||22.2||+0.1||42.9||10 Jan||9.9||+0.9||-3.2||22 Jul||1019.4||566.3||highest||180%|
|Southwest Slopes (North) (district 73)|
|Burrinjuck Dam||21.3||+0.7||40.4||12 Jan||10.2||+1.1||0.1||22 Jul||1568.5||925.5||v high||169%|
|Cootamundra Airport||21.5||40.2||12 Jan||8.1||-5.0||13 Jun||1056.0|
|Gundagai (William St)||21.9||42.1||12 Jan||9.4||-3.4||28 Jun||1015.8|
|Quandialla Post Office||23.2||-0.5||41.4||12 Jan||10.8||+1.1||-1.8||28 Jun||871.9||536.9||v high||162%|
|Temora Airport||22.3||42.6||11 Jan||9.3||-2.9||21 Jul||748.8|
|Wyalong Post Office||23.3||-0.1||42.1||11 Jan||11.2||+1.1||-0.6||28 Jun||756.0||479.2||v high||158%|
|Young Airport||21.4||39.2||12 Jan||7.7||-4.7||28 Jun||1099.2|
|Riverina (East) (district 74)|
|Corowa Airport||22.4||-0.2||43.0||12 Jan||9.5||+0.6||-2.0||14 Jun||871.0||540.0||v high||161%|
|Deniliquin Airport AWS||22.6||44.6||11 Jan||9.9||-2.2||27 Jul||706.2|
|Narrandera Golf Club||22.9||-0.5||43.0||11 Jan||10.4||+0.5||-1.5||17 Aug||620.4||483.5||high||128%|
|Tocumwal Airport||22.3||-0.6||43.8||11 Jan||9.9||+0.3||-1.7||27 Jul||736.9||446.4||v high||165%|
|Riverina (West) (district 75)|
|Griffith Airport AWS||23.4||-0.5||43.3||11 Jan||10.9||+0.8||-1.2||30 Sep||605.4||393.7||v high||154%|
|Hay (Miller Street)||23.4||-0.9||44.2||10 Jan||10.8||+0.8||-1.2||8 Jul||739.0||366.8||v high||201%|
|Hay Airport AWS||23.6||44.8||11 Jan||-1.7||8 Jul||662.6|
|Hillston Airport||24.1||-0.2||43.0||10 Jan||10.9||-0.1||-1.5||8 Jul||815.6||366.3||highest||223%|
A Annual Climate Summary is prepared to list the main features of the weather in New South Wales using the most timely and accurate information available on the date of publication; it will generally not be updated. Later information, including data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review, usually published in the fourth week of the month.
This statement has been prepared based on information available at 9 am on Tuesday 4 January 2011. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
Averages are long-term means based on observations from
all available years of record, which vary widely from site to site.
They are not shown for sites with less than 20 years of record, as they cannot then be calculated reliably.
The median is sometimes more representative than the mean of long-term average rain.
The Rank indicates how rainfall this time compares with the climate record for the site,
based on the
(very low rainfall is in decile 1, low in decile 2 or 3,
average in decile 4 to 7, high in decile 8 or 9
and very high is in decile 10).
The Fraction of average shows how much rain has fallen this time as a percentage of the long-term mean.