NSW in August 2011: Warm end to winter

  • 6th warmest August on record for both maximum and minimum temperatures.
  • 5th warmest August on record for mean temperatures
  • Average rainfall

Rainfall

The average rainfall in NSW during August was 37.3 mm, close to the historical average of 37.8 mm. Most of the state recorded close to average rainfall during the month, with moderate falls in the Tablelands due to a front on the 17th to 19th, reaching 78 mm at Hargraves (General Store) on the 18th and record falls for August at Parkes, Tharwa and Murrumburrah. In addition to light rain in southern NSW between the 6th and 9th, this was a welcome relief following dry conditions in inland NSW over the last three months. The Murray Darling Basin also recorded 32.2 mm during August, slightly below the historical average of 37.8 mm.

The wettest area of NSW during August was on the offshore islands, both of which recorded over 200 mm during the month. This was the wettest August since 1990 at Lord Howe Island, and the wettest since 1950 at Norfolk Island. This was followed by the coast, most of which recorded above average rainfall, with particularly heavy totals near the Queensland border including record August rainfall at Kyogle and Nimbin and the wettest since 1908 at Tweed Heads.

The high coastal rain was primarily due to low pressure system on the 20th and 21st, reaching 102.2 mm at Byron Bay on the 21st. This was followed by continued rain for the following days due to onshore winds between the 22nd and 24th. Further moderate falls on the North Coast reached 53 mm at Evans Head on the 28th associated with a low off the coast.

Some sites had their highest total August rainfall on record. Some sites had their highest August daily rainfall on record. See a map of rainfall deciles.

Temperature

The average maximum temperature in NSW during August was 19.7 °C, which is 2.6 °C above the historical average of 17.1 °C and the 6th warmest August on record. Most of the state recorded maximum temperatures in the warmest 10% of years, between 2 and 4 °C above the historical average, although temperatures were closer to average in the far northeast where rainfall was highest.

Temperatures were particularly warm in the Snowy Mountains and Riverina regions, with the warmest August on record at Charlottes Pass by 0.5 °C and the warmest since 1982 at Cabramurra SMHEA, Perisher Valley AWS, Tumbarumba PO and Wagga Wagga AMO. For information on Snow Cover changes during August please see Snowy Hydro.

The warm conditions were associated with above average sunshine hours during the month and a particularly warm period during the first week of August, with a high pressure system driving warm northwesterly winds into the state and days more than 8 °C above average across much of NSW between the 2nd and 4th. Further warm days occurred at the end of the month, with much of NSW more than 6 °C above average between the 25th and 28th.

The average minimum temperature was 5.8 °C, which is 1.1 °C above the historical average of 4.7 °C and also the equal 6th warmest on record for August. Temperatures were above average across the state, particularly in the west and along the south coast, associated with particularly warm nights during the first week of the month as well as during the rain event 16-18 August, including the warmest night on record at Thredbo AWS on the 4th. Thredbo additionally recorded its warmest average minimums for August since 1982 this month.

The average temperature during August was consequently the 5th warmest on record at 12.7 °C, 1.8 °C above the historical average of 10.9 °C.

Some sites had their coldest August day (lowest maximum temperature) on record. Some sites had their highest August mean daily maximum temperature on record. Some sites had their lowest August temperature on record. Some sites had their warmest August night (highest daily minimum temperature) on record. Some sites had their highest August mean daily minimum temperature on record.

See a map of maximum temperature anomalies.See a map of minimum temperature anomalies.

Other phenomena

Strong winds reached 104 km/hr at Wattamolla AWS on the 19th, causing minor damage in the Metropolitan region, while Byron Bay reached 104 km/hr on the 23rd.

Further information

Media
(03) 9669 4057
Enquiries

Extremes in August 2011
Hottest day 30.1 °C at Wanaaring Post Office on the 3rd
Warmest days on average 23.7 °C at Wanaaring Post Office
Coolest days on average 2.9 °C at Thredbo AWS
Coldest day -1.9 °C at Thredbo AWS on the 9th
Coldest night -11.0 °C at Charlotte Pass (Kosciusko Chalet) on the 10th
Coolest nights on average -3.3 °C at Charlotte Pass (Kosciusko Chalet)
Warmest nights on average 13.8 °C at Norfolk Island Aero
Warmest night 17.1 °C at Lord Howe Island Aero on the 30th
Warmest on average overall 16.6 °C at South West Rocks (Smoky Cape Lighthouse)
Coolest on average overall 0.1 °C at Thredbo AWS
Wettest overall 241.8 mm at Norfolk Island Aero
222.8 mm at Byron Bay (Jacaranda Drive)
Wettest day 102.2 mm at Byron Bay (Jacaranda Drive) on the 21st
Highest wind gust135 km/h at Thredbo AWS on the 5th

Record highest August daily rainfall
Highest daily rainfall
in August 2011 (mm)
Previous wettest
for August
Years of
record
Murrumburrah Old Post Office 49.2 on the 18th 47.2 on the 28th in 1916 108
Tharwa General Store 50.6 on the 18th 42.4 on the 24th in 2003 68
Parkes Airport AWS 43.2 on the 18th 41.0 on the 27th in 1999 24



Record highest total August rainfall
Total rainfall
for August 2011 (mm)
Previous wettest
for August
Years of
record
Average for
August
Kyogle Post Office 169.8 169.3 in 1952 100 41.1
Nimbin Post Office 188.0 181.7 in 1958 89 51.7


Record lowest August daily maximum temperature
Lowest daily maximum
temperature
in August 2011 (°C)
Previous coolest
for August
Years of
record
Average for
August
Wyalong Post Office 8.5 on the 18th = 8.5 on the 22nd in 2008 47 15.9



Record highest August mean daily maximum temperature
Mean daily maximum
temperature
for August 2011 (°C)
Previous warmest
for August
Years of
record
Average for
August
Charlotte Pass (Kosciusko Chalet) 5.4 4.9 in 1995 40 2.6



Record highest August daily minimum temperature
Highest daily minimum
temperature
in August 2011 (°C)
Previous warmest
for August
Years of
record
Average for
August
Thredbo AWS 3.7 on the 4th 3.6 on the 27th in 1977 45 -4.9



Record lowest August temperature
Lowest temperature
in August 2011 (°C)
Previous coolest
for August
Years of
record
Average for
August
Lord Howe Island Aero 6.6 on the 5th 6.8 on the 17th in 1994 23 13.5



Record highest August mean daily minimum temperature
Mean daily minimum
temperature
for August 2011 (°C)
Previous warmest
for August
Years of
record
Average for
August
Menindee Post Office 7.8 7.6 in 1972 97 5.3
Montague Island Lighthouse 12.0 11.8 in 2001 40 10.2



Summary statistics for August 2011
Maximum temperatures
for August
(°C)
Minimum temperatures
for August
(°C)
Rainfall
for August
(millimetres)
Mean for
August
2011
Diff
from
average
Highest for
August
2011
Mean for
August
2011
Diff
from
average
Lowest for
August
2011
Total for
August
2011
Average
for
August
Rank of
August
2011
Fraction of
August
average
Western (Far Northwest) (district 46)
Fowlers Gap AWS 22.0   28.4 3rd 6.8   2.3 1st 9.2
Tibooburra Airport 23.3   29.2 3rd 8.8   4.4 12th 2.2
Tibooburra Post Office 23.6 +3.2 29.4 3rd 8.9 +2.1 4.2 12th 2.0 11.7 low 17%
White Cliffs AWS 22.5   28.8 3rd 8.2   3.1 9th 8.4
White Cliffs Post Office 22.8 +3.1 29.0 3rd 7.3 +1.7 3.2 9th 10.0 15.4 average 65%
Wilcannia (Reid St) 22.7 +3.2 29.4 3rd 6.0 +0.4 0.6 31st 9.0 17.6 average 51%
Wilcannia Aerodrome AWS 22.5   29.4 3rd 5.9   1.3 31st 9.2
Western (Lower Darling) (district 47)
Broken Hill (Patton Street) 20.3 +3.0 27.2 3rd 8.6 +2.2 3.8 18th 16.6 18.5 average 90%
Broken Hill Airport AWS 20.2 +2.5 27.0 3rd 6.9 +1.3 3.0 23rd 7.4 18.1 average 41%
Lake Victoria Storage 19.3 +2.2 28.0 3rd     2.0 28th 31.8 23.8 high 134%
Menindee Post Office 21.6 +2.3 28.8 4th 7.8 +2.5 2.4 31st 10.9 18.0 average 61%
Pooncarie Mail Agency 21.3   29.0 3rd 7.0   1.5 31st 23.4 22.7 average 103%
Western (Upper Darling) (district 48)
Bourke Airport AWS 23.4   28.9 3rd 6.5   0.9 12th 5.8
Brewarrina Hospital 22.7 +2.1 27.7 27th 6.7 +1.0 2.6 8th 10.4 21.6 average 48%
Cobar Airport AWS 20.9   26.2 3rd 6.5   -0.7 31st 17.8
Cobar MO 21.1 +3.2 26.5 3rd 8.1 +1.9 2.6 31st 17.6 27.2 average 65%
Collarenebri (Albert St) 22.4 +1.6 28.3 29th 6.9 +1.6 1.9 10th 36.3 27.1 high 134%
Lightning Ridge Visitors Information Cen 23.2   28.5 29th 8.0   2.6 10th 19.2
Wanaaring Post Office 23.7   30.1 3rd 5.7   0.4 15th 4.0 14.9 average 27%
Western (Southwest Plains) (district 49)
Balranald (RSL) 19.7 +2.1 27.9 3rd 5.9 +1.2 2.1 28th 31.2 29.7 average 105%
Ivanhoe Aerodrome AWS 21.1   28.0 3rd 6.8   1.3 31st 26.2
Ivanhoe Post Office 21.3 +2.6 28.5 3rd 5.6 +0.9 -0.7 31st 34.8 23.6 high 147%
Central Western Plains (South) (district 50)
Condobolin Ag Research Stn 19.7 +2.9 27.4 3rd 4.5 +1.0 -2.0 31st 37.5 34.7 average 108%
Condobolin Airport AWS 19.7   27.2 3rd 4.4   -1.1 31st 40.6
Peak Hill Post Office 19.9 +3.0 25.5 3rd 7.2 +1.4 2.3 10th 51.2 43.2 average 119%
West Wyalong Airport AWS 18.5   25.2 4th 3.1   -1.3 31st 45.8
Central Western Plains (North) (district 51)
Coonamble Airport AWS 21.5   25.6 3rd 5.9   1.3 10th 33.4
Nyngan Airport 21.5 +3.1 27.0 3rd 6.3 +1.6 2.5 2nd 21.8 29.6 average 74%
Trangie Research Station AWS 20.6 +3.3 26.1 3rd 5.4 +1.4 0.3 10th 34.8 32.5 average 107%
Northwest Plains (West) (district 52)
Mungindi Post Office 23.4 +2.4 27.9 29th 7.2 +1.2 1.7 10th 39.2 25.6 high 153%
Walgett Airport AWS 22.8   28.0 29th 5.4   1.1 10th 23.0
Northwest Plains (East) (district 53)
Moree Aero 20.9   25.1 29th 6.5   1.3 12th 58.2
Northwest Slopes (North) (district 54)
Barraba Post Office 19.8 +1.9 24.2 29th 2.0 +0.9 -2.0 1st 40.2 39.8 average 101%
Narrabri Airport AWS 20.5   24.6 26th 6.3   2.5 12th 44.0
Northwest Slopes (South) (district 55)
Gunnedah Airport AWS 20.3   24.4 29th 4.0   -1.0 12th 33.8
Gunnedah Pool 20.5 +1.6 25.5 25th 6.6 +2.4 1.8 12th 40.0 41.5 average 96%
Gunnedah Resource Centre 20.0 +2.1 24.7 29th 7.4 +1.6 2.5 12th 26.4 35.7 average 74%
Quirindi Post Office 19.8 +1.9 25.2 26th 3.9 +1.5 -0.8 13th 34.6 45.4 average 76%
Tamworth Airport AWS 19.3   23.7 29th 3.2   -1.6 12th 37.8
Woolbrook (Danglemah Road) 15.0 +0.7 20.5 26th 0.1 +1.0 -5.0 13th 60.6 54.7 average 111%
Northern Tablelands (West) (district 56)
Armidale (Tree Group Nursery) 14.6   20.4 25th 0.9   -4.9 5th 56.8
Armidale Airport AWS 13.7   19.3 25th 2.3   -2.6 15th 62.2
Glen Innes Ag Research Stn 14.7 +0.7 20.0 26th 2.3 +1.1 -1.5 12th 81.4 49.3 high 165%
Glen Innes Airport AWS 14.8   19.8 26th 0.6   -4.9 12th 91.6
Glen Innes Post Office 15.2 +0.9 20.5 26th 2.9 +1.6 -1.4 12th 78.6 50.8 high 155%
Guyra Hospital 12.1 0.0 18.3 25th 1.7 +0.5 -2.0 5th 108.4 54.7 high 198%
Inverell (Raglan St) 18.9   23.5 4th 1.6   -2.4 12th 64.0
Inverell Research Centre 18.0 +1.4 22.5 26th 4.9 +0.5 -0.4 12th 58.0 44.4 high 131%
Tenterfield (Federation Park) 16.0 0.0 20.3 29th 2.3 +0.4 -3.0 1st 2.0 43.5 v low 5%
Northern Tablelands (East) (district 57)
Tabulam (Muirne) 17.6 -0.6 22.2 29th 7.6 -0.4 4.2 10th 103.4 39.1 v high 264%
Upper North Coast (district 58)
Ballina Airport AWS 21.0   25.1 29th 9.2   2.2 10th 157.8
Byron Bay (Cape Byron AWS) 19.7   22.8 7th 13.2   10.0 20th 139.8
Casino Airport 21.8 -1.0 26.5 29th 8.5 +1.2 4.6 12th 133.4 42.4 v high 315%
Casino Airport AWS 21.4   26.0 29th 8.6   4.0 12th 126.6
Evans Head RAAF Bombing Range AWS 20.4   26.1 29th 11.1   6.8 9th 147.6
Grafton Airport AWS 21.2   25.2 29th 7.3   0.4 10th 121.8
Grafton Olympic Pool 21.9 -0.2 26.6 29th 8.6 +1.4 3.5 10th 91.2 39.5 high 231%
Grafton Research Stn 21.4   25.9 29th 8.9   4.4 9th 92.6 39.3 high 236%
Lismore (Richmond Hill) 20.9   25.5 7th 9.7   6.2 4th 167.0
Lismore Airport AWS 21.6   26.3 29th 8.1   2.6 12th 146.6
Murwillumbah (Bray Park) 21.9 -0.5 25.9 29th 9.6 +0.8 2.4 10th 183.5 53.6 v high 342%
Yamba Pilot Station 20.6 +0.5 24.7 7th 11.5 +1.0 7.7 10th 197.6 75.6 v high 261%
Lower North Coast (district 59)
Coffs Harbour MO 19.9 +0.1 23.3 6th 9.7 +1.5 3.2 10th 168.2 79.5 high 212%
Dorrigo (Old Coramba Rd) 15.2   20.0 7th 5.2   -0.2 10th 192.8
Kempsey (Wide Street) 20.8 -0.5 26.0 29th 8.2 +2.0 2.1 10th 153.1 62.3 high 246%
Kempsey Airport AWS 20.8   26.0 29th 6.7   -0.1 10th 125.4
South West Rocks (Smoky Cape Lighthouse) 20.7 +0.9 24.7 29th 12.5 +0.8 9.0 20th 85.9 80.4 average 107%
Manning (district 60)
Forster - Tuncurry Marine Rescue 19.1   23.0 6th 8.8   5.2 9th 99.4 71.8 high 138%
Port Macquarie Airport AWS 19.7   25.0 29th 7.8   1.0 10th 113.6
Taree Airport AWS 19.9   25.1 29th 7.3   2.4 11th 135.2
Yarras (Mount Seaview) 19.9 -0.4 25.3 29th 6.0 0.0 0.0 10th 94.2 68.2 high 138%
Hunter (district 61)
Cessnock (Nulkaba) 19.9 +0.1 25.9 4th 5.4 +0.5 0.5 11th 68.6 37.1 high 185%
Cessnock Airport AWS 19.0 -0.4 24.5 4th 4.8 +0.3 -0.3 11th 56.2 35.2 high 160%
Cooranbong (Lake Macquarie AWS) 19.6   25.4 4th 5.9   2.5 11th 54.0
Gosford (Narara Research Station) AWS 19.5 +0.5 26.2 4th 6.9 +1.6 4.0 11th 80.0 73.0 high 110%
Jerrys Plains Post Office 19.8 +0.4 26.3 4th 5.4 +1.0 1.1 13th 51.2 36.5 high 140%
Maitland Visitors Centre 20.5   24.8 4th 5.0   0.5 11th 56.6
Mangrove Mountain AWS 17.4   23.8 4th 7.2   3.6 10th 118.8
Merriwa (Roscommon) 19.0   25.3 3rd 2.9   -1.4 13th 36.2 33.4 average 108%
Murrurundi Gap AWS 15.1   20.3 4th 6.7   1.9 24th 39.8
Murrurundi Post Office 17.7 +0.8 23.0 4th 3.4 +0.9 -0.5 13th 50.8 61.8 average 82%
Nelson Bay (Nelson Head) 19.1 +0.3 22.7 29th 11.8 +2.3 9.0 11th 37.5 103.2 low 36%
Newcastle Nobbys Signal Station AWS 19.0 +1.0 24.0 29th 11.0 +1.8 7.5 11th 29.4 73.7 low 40%
Newcastle University 19.7   24.6 4th 7.8   3.5 20th 45.0
Norah Head AWS 18.9   24.0 6th 11.4   7.6 10th 62.4
Paterson (Tocal AWS) 19.4 +0.1 24.5 4th 6.7 +0.2 2.4 11th 60.4 37.3 high 162%
Peats Ridge (Waratah Road) 17.6 -0.1 24.5 4th 8.0 +1.5 4.1 10th 120.6 81.1 high 149%
Scone Airport AWS 18.4   24.2 4th 4.2   0.2 10th 47.0
Singleton STP 19.3   25.0 4th 3.8   0.5 6th 69.5
Williamtown RAAF 19.7 +1.1 24.7 4th 7.1 +0.3 2.1 11th 56.6 75.5 average 75%
Central Tablelands (North) (district 62)
Gulgong Post Office 18.6 +2.2 24.3 4th 4.4 +1.0 -0.8 11th 58.9 46.8 high 126%
Mudgee Airport AWS 17.7   23.4 3rd 2.5   -2.3 13th 65.4
Nullo Mountain AWS 11.2   17.4 3rd 4.5   -0.3 13th 82.0
Central Tablelands (South) (district 63)
Bathurst Agricultural Station 16.0 +3.1 21.5 3rd 1.0 -0.3 -3.5 13th 57.0 49.6 average 115%
Bathurst Airport AWS 15.6   21.5 3rd 1.3   -3.2 13th 47.0
Katoomba (Murri St) 13.4 +2.3 20.0 4th 5.6 +2.4 1.5 9th 66.6 79.2 average 84%
Lithgow (Cooerwull) 13.7   20.2 4th 1.3   -2.7 2nd 58.9 58.5 average 101%
Mount Boyce AWS 12.5   19.0 4th 4.6   0.3 19th 66.6
Oberon (Springbank) 12.6 +2.3 18.2 3rd 1.0 +0.7 -3.4 13th 58.4 75.7 average 77%
Orange Agricultural Institute 13.3 +2.4 18.2 3rd 2.9 +0.8 -0.5 13th 89.1 99.4 average 90%
Orange Airport AWS 13.2   18.6 24th 1.3   -3.3 15th 80.8
Springwood (Valley Heights) 18.1   25.5 3rd 8.0   3.8 10th 33.2 53.8 average 62%
Central Western Slopes (North) (district 64)
Coonabarabran (Namoi Street) 19.1 +2.3 23.5 4th 1.1 +0.2 -3.0 13th 42.2 53.1 average 79%
Coonabarabran Airport AWS 17.8   22.3 3rd 7.0   3.6 10th 41.4
Dunedoo Post Office 19.6 +2.5 25.3 3rd 5.3 +2.3 1.3 13th 58.9 41.0 high 144%
Central Western Slopes (South) (district 65)
Cowra Airport AWS 18.2   24.5 3rd 3.3   -1.2 13th 51.8
Dubbo Airport AWS 19.5   24.6 3rd 4.9   1.4 11th 59.8
Forbes Airport AWS 19.1   25.1 3rd 3.3   -2.0 31st 49.4
Parkes (Macarthur Street) 19.2 +3.3 24.0 4th 5.8 +0.9 0.5 10th 76.2 49.2 high 155%
Parkes Airport AWS 17.6   22.8 3rd 3.2   -1.2 31st 88.0 47.8 v high 184%
Wellington (Agrowplow) 19.3 +2.3 24.6 4th 3.9 +0.9 0.4 11th 77.6 49.9 high 156%
Metropolitan (East) (district 66)
Bankstown Airport AWS 19.6 +0.7 25.9 4th 6.7 +0.7 1.7 10th 36.2 48.8 average 74%
Canterbury Racecourse AWS 19.3   25.6 3rd 6.9   1.4 11th 34.0
Holsworthy Control Range 19.4   25.5 4th 5.8   0.0 10th 43.2
Parramatta North (Masons Drive) 19.6 +0.6 25.8 4th 7.7 +0.6 4.1 10th 55.0 55.3 high 99%
Riverview Observatory 19.4 +1.1 26.1 3rd 8.6 +1.4 4.9 11th 45.2 70.8 average 64%
Sydney (Observatory Hill) 19.8 +2.0 25.7 3rd 10.7 +1.8 7.3 11th 52.2 80.6 average 65%
Sydney Airport AMO 19.4 +1.1 25.9 3rd 10.4 +2.3 5.6 11th 42.6 76.3 average 56%
Sydney Harbour (Wedding Cake West) 18.1   22.2 6th 11.9   9.0 9th
Sydney Olympic Park (Sydney Olympic Pk A 20.1   27.2 4th 9.3   5.2 10th 32.0
Terrey Hills AWS 17.8   24.0 4th 9.3   4.7 10th 61.0
Metropolitan (West) (district 67)
Badgerys Creek AWS 19.4   25.3 4th 5.4   0.2 11th 44.6
Horsley Park Equestrian Centre AWS 19.1   25.1 4th 6.9   1.0 10th 32.4
Penrith Lakes AWS 20.0   25.9 4th 6.7   1.6 10th 28.4
Prospect Reservoir 19.2 +0.5 25.2 4th 7.4 +0.6 2.6 10th 33.6 50.1 average 67%
Richmond RAAF 19.7   26.1 4th 5.1   -0.2 10th 28.8
Illawarra (district 68)
Albion Park (Wollongong Airport) 19.3   26.5 3rd 7.0   2.5 1st 54.2
Bellambi AWS 18.4   24.5 3rd 11.8   8.5 9th 65.8
Bowral (Parry Drive) 14.8 +1.4 22.2 4th     6.3 31st 58.0 60.2 high 96%
Camden Airport AWS 19.5 +0.5 25.1 4th 4.3 +0.4 -1.2 10th 44.0 43.4 high 101%
Campbelltown (Mount Annan) 19.7   25.6 4th 5.3   -0.1 11th 54.8
Jervis Bay (Point Perpendicular AWS) 17.9   25.0 3rd 11.1   7.5 13th 93.0
Kiama (Bombo Headland) 18.4   23.5 5th 11.4   8.2 9th 87.4
Moss Vale AWS 14.4   21.7 4th 3.7   -2.2 13th 51.6
Nowra RAN Air Station AWS 19.0   26.1 4th 7.7   4.9 8th 51.6
South Coast (district 69)
Batemans Bay (Catalina Country Club) 18.4   26.9 4th 6.4   1.1 10th 90.9 58.1 high 156%
Bega AWS 18.2   28.2 4th 4.1   0.0 1st 83.6
Braidwood Racecourse AWS 15.2 +1.7 21.5 3rd 1.6 +1.2 -5.3 9th 102.6 49.1 high 209%
Green Cape AWS 17.2   23.8 3rd 10.7   7.8 31st 37.6
Merimbula Airport AWS 17.9   27.9 4th 6.4   3.5 8th 66.4
Montague Island Lighthouse 17.2 +1.1 24.4 4th 12.0 +1.8 9.8 8th 84.6 53.8 high 157%
Moruya Airport AWS 18.5   27.4 4th 6.4   0.7 10th 102.6
Moruya Heads Pilot Station 18.0 +0.9 26.4 4th 8.7 +2.2 5.3 8th 117.8 54.1 high 218%
Narooma Vmr 17.7 +0.9 27.0 4th 8.9 +1.6 6.2 8th 130.1 50.5 v high 258%
Nerriga Composite 15.8 +2.3 22.5 4th 1.9 +1.1 -5.0 10th 84.7 56.5 high 150%
Ulladulla AWS 18.0   25.7 4th 10.2   7.2 25th 98.4
Southern Tablelands (Goulburn-Monaro) (district 70)
Bombala (Therry Street) 14.9 +2.3 21.5 3rd 0.8 +1.0 -3.7 25th 50.0 40.1 high 125%
Bombala AWS 12.9   19.8 4th 1.0   -3.5 31st 44.0
Canberra Airport 16.0   21.3 3rd 1.2   -3.3 10th 52.0
Cooma Airport AWS 13.2   21.2 24th -1.2   -7.8 13th 32.2 30.0 average 107%
Cooma Visitors Centre 14.5 +1.2 21.0 24th -1.1 +0.8 -6.5 10th 36.8 27.5 high 134%
Goulburn Airport AWS 15.3   22.1 4th 1.1   -4.4 1st 60.0
Goulburn TAFE 15.2 +2.0 21.8 4th 3.5 +1.3 -2.9 13th 60.2 53.2 average 113%
Mount Ginini AWS 6.7   13.9 24th 0.0   -5.0 9th 106.8
Taralga Post Office 14.4 +2.6 21.1 4th 1.8 +0.6 -4.1 13th 68.5 66.9 average 102%
Tuggeranong (Isabella Plains) AWS 15.8   21.2 26th 1.9   -2.7 25th 62.2
Southern Tablelands (Snowy Mountains) (district 71)
Charlotte Pass (Kosciusko Chalet) 5.4 +2.8 10.0 3rd -3.3 +2.4 -11.0 10th 130.0 205.6 average 63%
Perisher Valley AWS 5.5   12.3 22nd -1.6   -7.4 9th 149.4
Thredbo AWS 2.9 +2.4 8.1 22nd -2.6 +2.3 -7.9 9th 74.2 126.7 low 59%
Thredbo Village 8.9 +2.3 16.0 23rd -1.8 +0.7 -9.5 20th 134.6 194.0 average 69%
Southwest Slopes (South) (district 72)
Albury Airport AWS 16.3   22.9 4th 4.0   0.4 28th 73.4
Cabramurra SMHEA AWS 7.8   13.9 24th 1.5   -2.8 9th 44.4
Hume Reservoir 16.4 +2.2 23.5 4th 5.9 +1.0 1.2 30th 66.8 76.4 average 87%
Khancoban AWS 15.2   21.2 4th 2.4   -1.1 13th 105.8
Tumbarumba Post Office 15.0 +2.8 20.6 4th 1.3 +0.4 -2.5 24th 107.4 107.1 average 100%
Wagga Wagga AMO 17.2 +2.7 23.5 4th 3.8 +0.2 -2.1 31st 48.4 51.4 average 94%
Southwest Slopes (North) (district 73)
Burrinjuck Dam 15.6 +2.2 20.4 26th 4.6 +0.9 1.9 25th 83.6 99.0 average 84%
Cootamundra Airport 16.9   22.6 3rd 1.4   -3.5 31st 67.8
Grenfell (Manganese Rd) 17.4 +2.6 23.3 3rd 4.1 +0.1 -1.0 31st 57.7 56.1 average 103%
Gundagai (William St) 17.1   23.4 4th 3.0   -0.6 31st 71.6
Quandialla Post Office 18.4 +2.3 24.8 3rd 4.9 +1.4 -1.2 31st 46.9 42.6 average 110%
Temora Airport 17.5   23.7 4th 2.5   -2.5 31st 45.6
Wyalong Post Office 18.5 +2.6 25.2 4th 4.5 +0.6 0.0 31st 44.4 39.2 average 113%
Young Airport 16.5   22.5 3rd 1.1   -3.9 31st 68.6
Riverina (East) (district 74)
Corowa Airport 17.1 +2.1 25.4 4th 4.8 +1.1 0.0 28th 62.0 53.5 average 116%
Deniliquin Airport AWS 17.8   27.2 4th 5.6   0.6 30th 62.8
Narrandera Airport 18.4   26.7 3rd 4.7   -0.7 31st 56.2 39.5 high 142%
Narrandera Golf Club 18.2 +2.3 26.5 3rd 4.5 +0.4 -3.5 30th 69.7 43.9 high 159%
Tocumwal Airport 17.4 +1.6 26.2 4th 5.2 +0.9 0.1 28th 48.1 43.2 average 111%
Yanco Agricultural Institute 18.3   26.6 3rd 6.4   1.4 31st 71.8 35.6 v high 202%
Riverina (West) (district 75)
Griffith Airport AWS 18.8 +2.3 27.0 3rd 5.2 +1.3 -0.6 31st 52.6 36.2 high 145%
Hay (Miller Street) 19.9 +2.7 28.7 3rd 5.8 +1.2 1.2 31st 47.4 32.3 high 147%
Hay Airport AWS 20.3   29.1 3rd 5.0   -0.4 31st 45.6
Hillston Airport 20.2 +3.1 28.5 3rd 5.6 +0.6 0.0 31st 36.2 31.0 average 117%
Lake Cargelligo Airport 19.4 +1.8 28.1 4th 5.6 +1.0 1.5 11th 44.2 33.7 high 131%
Offshore Islands (district 200)
Lord Howe Island Aero 18.6 -0.3 20.2 7th 13.2 -0.3 6.6 5th 208.4 107.9 v high 193%
Norfolk Island Aero 18.2 -0.1 20.5 29th 13.8 +0.6 9.4 18th 241.8 127.5 v high 190%

Notes

A Monthly 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 1 pm on Thursday 1 September 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 decile ranking (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.

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