New South Wales in August 2010: Cold and wet end to winter

  • Wettest August since 2003 for NSW and the Murray Darling Basin
  • Cool days - 9th coldest August on record
  • Close to average night-time temperatures

Rainfall

NSW experienced it wettest August in 7 years. Above average rainfall was recorded in the south of the state and along the tablelands and western slopes. Average rainfall was recorded elsewhere, with the exception of a small region in the central inland which recorded very much below average rainfall. The statewide average1 rainfall for August was 40.7 mm which is above the historical average of 37.8 mm.

Much of the rainfall experienced by the state during August resulted from complex low pressure systems developing and moving across south-eastern Australia, the Tasman Sea and the Bass Strait. These low pressure systems brought associated troughs and cold unstable air into the upper atmosphere. The most significant rainfall event occured on the 10th, when a low pressure system and associated trough over western NSW brought rain and thunderstorm activity across most of the state.

The Murray Darling Basin (MDB) recorded a basin-wide average of 51.5 mm which is above the historical average of 37.8 mm. This is the wettest August in 7 years for the MDB.

See a map of rainfall deciles.

Temperature

The majority of the state located west of the divide experienced very much below average maximum temperatures for August. Areas east of the divide experienced average to below average maximum temperatures and parts of central western NSW experienced their lowest maximum temperatures on record. The overall statewide average maximum temperature for NSW was 16.0°C which is 1.1°C below the historical average of 17.1 °C. This is the 9th lowest August average maximum temperature on record for NSW and the third August in 20 years to record below average day-time temperatures.

August minimum temperatures were average for NSW; with the exception of small areas in the northeast where above average minimum temperatures were recorded and small areas in central and western areas that recorded below average minimum temperatures. The overall statewide average minimum temperature was 3.4°C which is slightly below the historical average of 3.5°C.

The statewide average mean temperature for August was 10.3°C which is 0.6°C below the historical average of 10.9°C.

Some sites had their highest August temperature on record.
Some sites had their lowest August mean daily maximum temperature on record.
See a map of maximum temperature anomalies.
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 minimum temperature anomalies.

Further information

Media
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Enquiries

Extremes in August 2010
Hottest day 29.9 °C at Bourke Airport AWS on the 18th
Warmest days on average 22.0 °C at Grafton Olympic Pool
Coolest days on average -1.2 °C at Thredbo AWS
Coldest day -4.6 °C at Thredbo AWS on the 25th
Coldest night -11.5 °C at Thredbo Village on the 6th
Coolest nights on average -5.8 °C at Thredbo AWS
Warmest nights on average 14.7 °C at Norfolk Island Aero
11.0 °C at Nelson Bay (Nelson Head)
Warmest night 20.1 °C at Lord Howe Island Aero on the 20th
17.3 °C at Coffs Harbour MO on the 20th
Wettest overall 344.2 mm at Perisher Valley AWS
Wettest day 78.0 mm at Thredbo Village on the 2nd
Highest wind gust 122 km/h at Jervis Bay (Point Perpendicular AWS) on the 2nd


Record highest August temperature
Highest temperature
in August 2010 (°C)
Previous highest
for August
Years of
record
Average for
August
Norfolk Island Aero 21.8 on the 2nd = 21.8 on the 27th in 2009 72 18.3



Record lowest August mean daily maximum temperature
Mean daily maximum
temperature
for August 2010 (°C)
Previous lowest
for August
Years of
record
Average for
August
Hay (Miller Street) 14.7 14.8 in 1978 129 17.3
Cobar MO 15.2 15.5 in 1990 48 18.0
Condobolin Ag Research Stn 14.7 = 14.7 in 1990 47 16.8
Tumbarumba Post Office 10.2 = 10.2 in 1991 45 12.2
Tocumwal Airport 13.6 13.8 in 2003 38 15.8



Record highest August daily minimum temperature
Highest daily minimum
temperature
in August 2010 (°C)
Previous highest
for August
Years of
record
Average for
August
Lord Howe Island Aero 20.1 on the 20th 19.3 on the 31st in 2004 22 13.5



Record highest August mean daily minimum temperature
Mean daily minimum
temperature
for August 2010 (°C)
Previous highest
for August
Years of
record
Average for
August
Norfolk Island Aero 14.7 14.5 in 1998 71 13.2



Summary statistics for August 2010
Maximum temperatures
for August
(°C)
Minimum temperatures
for August
(°C)
Rainfall
for August
(millimetres)
Mean for
August
2010
Diff
from
average
Highest for
August
2010
Mean for
August
2010
Diff
from
average
Lowest for
August
2010
Total for
August
2010
Average
for
August
Rank of
August
2010
Fraction of
August
average
Western (Far Northwest) (district 46)
Fowlers Gap AWS 16.7   22.7 31st 4.5   -0.2 7th 8.0
Tibooburra Airport 17.8   25.2 31st 6.6   2.8 7th 11.0
Tibooburra Post Office 18.2 -2.2 25.9 31st 6.7 -0.1 1.9 7th 13.6 11.8 average 115%
White Cliffs AWS 16.7   23.1 31st 6.2   2.8 4th 8.8
White Cliffs Post Office 16.9 -2.8 23.0 31st 5.4 -0.2 0.1 8th 11.6 15.4 average 75%
Wilcannia (Reid St) 17.2 -2.3 23.2 31st 4.8 -0.8 -0.2 7th 11.2 17.6 average 64%
Wilcannia Aerodrome AWS 17.2   23.7 31st 4.7   0.4 4th 11.8
Western (Lower Darling) (district 47)
Broken Hill (Patton Street) 15.8 -1.5 21.8 31st 5.8 -0.6 2.4 7th 16.8 18.5 average 91%
Broken Hill Airport AWS 15.7 -2.1 21.0 31st 4.7 -1.0 0.0 4th 14.6 18.3 average 80%
Lake Victoria Storage 16.5 -0.6 24.0 31st 5.4 -0.7 -0.5 17th 27.9 23.8 average 117%
Menindee Post Office 17.0 -2.3 23.5 31st 6.0 +0.7 0.2 7th 17.1 18.0 average 95%
Pooncarie Mail Agency 16.8   23.0 18th 5.3   -0.8 17th 23.1 22.7 average 102%
Western (Upper Darling) (district 48)
Bourke Airport AWS 18.5   29.9 18th 5.2   0.3 7th 9.8
Brewarrina Hospital 18.2 -2.4 28.0 18th 5.4 -0.3 0.0 7th 24.0 21.7 average 111%
Cobar Airport AWS 15.2   21.1 31st 3.7   -2.0 7th 23.4
Cobar MO 15.2 -2.8 21.2 31st 5.1 -1.1 1.1 4th 29.0 27.5 average 105%
Collarenebri (Albert St) 18.4 -2.5 26.1 19th 5.2 -0.1 -1.7 8th 43.8 27.0 high 162%
Lightning Ridge Visitors Information Cen 19.4   27.0 18th 5.8   -0.5 8th 34.6
Wanaaring Post Office 18.6   28.6 18th 5.8   -0.2 7th 15.9 15.0 average 106%
Western (Southwest Plains) (district 49)
Balranald (RSL) 15.0 -2.6 19.8 31st 5.1 +0.4 -0.8 17th 53.8 29.7 v high 181%
Ivanhoe Aerodrome AWS 15.6   21.6 31st 5.1   1.5 17th 10.0
Ivanhoe Post Office 16.1 -2.6 19.2 9th 4.4 -0.3 -1.5 17th 20.8 23.5 average 89%
Central Western Plains (South) (district 50)
Condobolin Ag Research Stn 14.7 -2.1 19.5 31st 3.3 -0.2 -2.5 7th 26.3 34.7 average 76%
Condobolin Airport AWS 15.1   19.7 31st 3.3   -2.0 7th 29.0
Peak Hill Post Office 15.2 -1.8 20.5 9th 5.3 -0.5 1.1 17th 48.5 43.2 average 112%
West Wyalong Airport AWS 13.5   17.2 31st 4.0   -0.8 9th 65.0
Central Western Plains (North) (district 51)
Coonamble Airport AWS 16.6   23.4 18th 3.8   -1.9 7th 54.6
Nyngan Airport 16.3 -2.1 21.5 31st 4.6 -0.2 0.5 8th 32.6 29.6 average 110%
Trangie Research Station AWS 15.8 -1.5 20.7 31st 3.7 -0.3 -1.1 7th 46.8 32.4 high 144%
Northwest Plains (West) (district 52)
Mungindi Post Office 19.4 -1.6 26.5 18th 5.7 -0.3 -0.2 8th 31.4 25.5 average 123%
Walgett Airport AWS 18.6   26.7 18th 4.4   -2.6 8th 30.4
Northwest Plains (East) (district 53)
Moree Aero 17.6   24.4 18th 5.7   -0.8 7th 36.4
Northwest Slopes (North) (district 54)
Barraba Post Office 16.4 -1.6 21.0 31st 2.4 +1.3 -3.6 9th 55.9 39.8 high 140%
Narrabri Airport AWS 17.2   22.8 18th 5.0   -1.8 7th 48.2
Northwest Slopes (South) (district 55)
Gunnedah Airport AWS 16.5   22.1 18th 3.8   -2.4 7th 58.4
Gunnedah Pool 17.2 -1.7 23.4 18th 5.1 +1.0 -0.6 7th 62.0 41.5 high 149%
Gunnedah Resource Centre 16.7 -1.2 22.7 18th 5.9 +0.1 0.1 7th 65.6 35.8 high 183%
Quirindi Post Office 16.3 -1.6 22.1 18th 3.3 +0.9 -2.6 9th 66.0 45.4 high 145%
Tamworth Airport AWS 16.0   21.3 18th 4.0   -2.5 7th 85.0
Woolbrook (Danglemah Road) 12.6 -1.8 17.0 31st 0.6 +1.6 -6.5 7th 99.4 54.6 high 182%
Northern Tablelands (West) (district 56)
Armidale (Tree Group Nursery) 12.7   18.1 18th 0.6   -7.1 9th 60.4
Armidale Airport AWS 11.5   16.6 18th 1.9   -3.8 7th 68.8
Glen Innes Ag Research Stn 11.9 -2.1 16.5 18th 1.6 +0.4 -3.3 7th 101.6 48.9 v high 208%
Glen Innes Airport AWS 12.4   16.4 18th 0.8   -6.0 22nd 109.8
Glen Innes Post Office 12.8 -1.5 17.1 18th 1.9 +0.6 -3.0 22nd 100.9 50.6 v high 199%
Guyra Hospital 10.2 -2.0 15.3 18th 1.0 -0.2 -3.1 22nd 96.7 52.8 high 183%
Inverell (Raglan St) 15.6   20.2 18th 1.9   -4.7 8th 73.6
Inverell Research Centre 15.2 -1.4 19.9 18th 4.6 +0.2 -1.1 7th 66.8 44.0 high 152%
Tenterfield (Federation Park) 14.5 -1.5 19.0 18th 2.3 +0.4 -5.0 7th 110.5 43.8 v high 252%
Northern Tablelands (East) (district 57)
Tabulam (Muirne) 17.2 -1.0 21.7 19th 7.6 -0.4 4.3 7th 46.2 37.5 average 123%
Upper North Coast (district 58)
Alstonville Tropical Fruit Research Stat 19.6 -0.5 24.6 19th 10.6 0.0 6.0 7th 44.2 74.8 average 59%
Ballina Airport AWS 20.8   26.7 19th 8.9   4.5 28th 47.6
Byron Bay (Cape Byron AWS) 20.2   24.8 19th 12.3   9.0 7th 11.0
Casino Airport 21.7 -1.1 26.2 19th 8.0 +0.7 2.8 7th 23.2 41.8 average 56%
Casino Airport AWS 21.3   26.1 19th 7.6   2.3 7th 22.8
Evans Head RAAF Bombing Range AWS 20.9   28.6 19th 10.3   6.0 3rd 58.4
Grafton Airport AWS 21.3   26.8 19th 6.2   0.5 7th 39.0
Grafton Olympic Pool 22.0 -0.1 26.8 19th 7.9 +0.7 3.0 7th 39.0 38.3 high 102%
Grafton Research Stn 21.5   26.8 19th 8.5   3.5 7th 29.6 38.3 average 77%
Lismore (Richmond Hill) 21.1   26.0 19th 9.9   6.1 7th 32.0
Lismore Airport AWS 21.4   26.3 19th 7.0   2.1 9th 25.4
Murwillumbah (Bray Park) 21.5 -1.0 27.1 19th 8.4 -0.4 3.8 28th 56.9 50.1 average 114%
Yamba Pilot Station 20.4 +0.3 27.2 19th 10.6 +0.1 7.2 7th 43.2 74.7 average 58%
Lower North Coast (district 59)
Coffs Harbour MO 19.8 0.0 25.6 19th 7.8 -0.4 3.1 22nd 21.6 78.2 average 28%
Dorrigo (Old Coramba Rd) 15.2   20.0 19th 4.6   0.2 22nd 24.4
Kempsey (Wide Street) 20.6 -0.7 25.2 19th 6.1 -0.1 1.8 22nd 24.0 61.6 average 39%
Kempsey Airport AWS 20.9   26.2 19th 4.8   -0.6 22nd 17.0
South West Rocks (Smoky Cape Lighthouse) 20.3 +0.5 24.7 19th 11.2 -0.5 8.7 7th 25.8 80.3 average 32%
Manning (district 60)
Forster - Tuncurry Marine Rescue 18.8   24.0 19th 9.2   6.2 18th
Port Macquarie Airport AWS 19.7   27.0 19th 6.1   1.0 22nd 35.8
Taree Airport AWS 19.2   24.8 19th 7.0   2.5 18th 30.4
Yarras (Mount Seaview) 19.3 -1.0 24.4 19th 6.0 0.0 1.6 8th 43.4 67.8 average 64%
Hunter (district 61)
Cessnock (Nulkaba) 18.7 -1.1 22.8 31st     0.1 8th 25.8 36.4 average 71%
Cessnock Airport AWS 17.8   22.0 19th 5.4   -0.8 8th 22.2 34.2 average 65%
Cooranbong (Lake Macquarie AWS) 18.6   25.0 19th 5.3   0.4 18th 32.0
Gosford (Narara Research Station) AWS 18.3 -0.7 24.9 19th 5.0 -0.3 1.4 18th 41.6 72.9 average 57%
Jerrys Plains Post Office 18.2 -1.2 23.1 18th 5.1 +0.7 0.3 18th 38.4 36.4 average 105%
Maitland Visitors Centre 18.5   23.3 19th 6.5   0.9 8th 31.8
Mangrove Mountain AWS 16.2   22.1 19th 5.9   1.7 8th 20.8
Merriwa (Roscommon) 15.9   21.6 18th 3.0   -2.9 7th 30.4 33.3 average 91%
Murrurundi Gap AWS 12.3   17.6 18th 4.7   0.3 7th 77.8
Murrurundi Post Office 15.2 -1.8 20.7 18th 3.4 +0.9 -2.9 7th 108.2 61.9 high 175%
Nelson Bay (Nelson Head) 18.0 -0.9 23.5 19th 11.0 +1.6 8.2 7th 54.7 103.7 low 53%
Newcastle Nobbys Signal Station AWS 17.7 -0.3 22.7 19th 9.6 +0.4 6.4 8th 35.0 74.1 average 47%
Newcastle University 18.4   23.5 19th 7.7   3.8 9th 67.7
Paterson (Tocal AWS) 18.4 -1.0 23.4 19th 7.4 +0.9 2.2 9th 33.2 36.7 average 90%
Peats Ridge (Waratah Road) 17.0 -0.7 23.1 19th 6.3 -0.2 3.2 8th 44.4 79.8 average 56%
Scone Airport AWS 16.9   22.0 18th 3.6   -2.8 9th 18.8
Singleton STP 17.7   22.0 31st 4.4   -0.6 8th 23.0
Williamtown RAAF 18.3 -0.3 24.3 19th 7.0 +0.2 1.3 9th 47.2 75.8 average 62%
Central Tablelands (North) (district 62)
Gulgong Post Office 14.6 -1.8 20.7 18th 3.7 +0.3 -1.6 7th 93.2 46.7 v high 200%
Mudgee Airport AWS 14.0   19.9 18th 2.8   -3.8 7th 91.8
Nullo Mountain AWS 9.1   13.4 18th 1.6   -1.4 17th 100.6
Central Tablelands (South) (district 63)
Bathurst Agricultural Station 12.2 -0.7 17.2 19th 1.7 +0.4 -3.5 9th 102.8 49.5 v high 208%
Bathurst Airport AWS 11.9   16.7 19th 1.7   -2.4 8th 84.4
Cowra Research Centre (Evans St) 13.6 -1.1 17.8 19th 4.9 +0.3 0.7 17th 66.5 51.6 high 129%
Katoomba (Murri St) 11.2 +0.1 15.7 18th 2.7 -0.5 -1.4 7th 65.9 79.3 average 83%
Lithgow (Cooerwull) 11.0   15.8 19th 1.7   -5.5 7th 73.6 58.5 high 126%
Mount Boyce AWS 9.8   15.1 18th 1.9   -1.7 17th 41.0
Oberon (Springbank) 8.3 -2.0 12.8 19th 0.2 -0.2 -4.2 8th 162.8 75.8 v high 215%
Orange Agricultural Institute 9.4 -1.6 13.8 19th 1.5 -0.6 -1.8 4th 219.5 99.8 v high 220%
Orange Airport AWS 9.0   13.8 18th 1.3   -3.4 7th 240.8
Orange Airport Comparison 9.2 -1.6 13.8 19th 1.4 0.0 -3.2 7th 219.8 93.6 v high 235%
Springwood (Valley Heights) 16.5   22.7 19th 6.6   2.2 17th 28.2 53.9 average 52%
Central Western Slopes (North) (district 64)
Coonabarabran (Namoi Street) 14.7 -2.1 20.4 18th 1.7 +0.8 -5.0 9th 98.0 53.2 high 184%
Coonabarabran Airport AWS 13.4   19.3 18th 5.0   1.4 7th 83.4
Dunedoo Post Office 15.7 -1.5 21.6 18th 3.8 +0.8 -2.2 7th 58.2 40.8 high 143%
Central Western Slopes (South) (district 65)
Cowra Airport AWS 14.2   18.5 19th 3.0   -2.5 7th
Cowra Airport Comparison 14.0 -1.5 18.2 19th 3.5 +0.7 -2.5 7th 54.8 47.8 average 115%
Dubbo Airport AWS 14.9   20.7 9th 3.3   -2.4 7th 58.4
Forbes Airport AWS 14.1   18.7 10th 2.9   -2.1 7th 55.0
Parkes (Macarthur Street) 14.4 -1.5 19.5 19th 3.9 -1.0 -1.5 7th 62.1 49.0 high 127%
Parkes Airport AWS 13.2   18.0 19th 2.8   -3.0 7th 78.0 46.0 high 170%
Wellington (Agrowplow) 14.9 -2.1 20.7 18th 3.4 +0.4 -2.4 7th 81.2 49.6 high 164%
Metropolitan (East) (district 66)
Bankstown Airport AWS 18.2 -0.7 24.7 19th 6.3 +0.3 2.3 18th 24.8 49.1 average 51%
Canterbury Racecourse AWS 18.0   24.5 19th 6.4   2.4 18th 21.0
Holsworthy Control Range 18.0   24.1 19th 5.5   0.5 18th 28.4
Parramatta North (Masons Drive) 18.4 -0.6 24.6 19th 6.8 -0.3 2.5 18th 22.2 55.3 average 40%
Riverview Observatory 18.3 0.0 24.4 19th 8.0 +0.8 4.0 18th 25.5 71.0 low 36%
Sydney (Observatory Hill) 18.3 +0.5 24.6 19th 9.5 +0.6 6.4 8th 27.0 80.8 low 33%
Sydney Airport AMO 18.3 0.0 25.4 19th 9.2 +1.1 6.0 18th 25.8 76.7 low 34%
Sydney Harbour (Wedding Cake West) 17.2   24.2 19th 10.6   8.1 7th
Sydney Olympic Park (Sydney Olympic Pk A 18.8   25.0 19th 8.6   5.1 8th 23.6
Terrey Hills AWS 16.6   23.3 19th 7.9   4.3 8th 33.2
Metropolitan (West) (district 67)
Badgerys Creek AWS 17.9   23.4 19th 5.3   0.5 18th 20.2
Horsley Park Equestrian Centre AWS 17.7   23.3 19th 6.1   1.2 8th 26.6
Liverpool (Michael Wenden Centre) 18.3   24.4 19th 5.3   1.0 18th 27.6
Penrith Lakes AWS 18.6   24.7 19th 6.3   2.2 18th 23.0
Prospect Reservoir 18.2 -0.5 23.8 19th 6.6 -0.2 2.0 18th 24.1 50.3 average 48%
Richmond RAAF 18.4   24.8 19th 5.0   -1.2 22nd 16.4
Illawarra (district 68)
Albion Park (Wollongong Airport) 17.7   23.0 19th 7.3   1.0 8th 46.4
Bellambi AWS 17.3   23.5 19th 10.2   7.2 8th 42.0
Bowral (Parry Drive) 12.1 -1.3 17.8 31st 3.7 +0.8 -1.7 8th 55.6 60.2 high 92%
Camden Airport AWS 18.0 -1.0 24.5 19th 4.9 +1.1 -0.1 18th 31.8 43.1 high 74%
Campbelltown (Mount Annan) 18.3   24.1 19th 4.7   0.2 17th 30.2
Jervis Bay (Point Perpendicular AWS) 16.0   20.5 19th 9.9   6.4 8th 34.6
Kiama (Bombo Headland) 17.4   23.5 19th 10.2   7.4 8th 67.4
Moss Vale AWS 12.3   17.8 31st 3.3   -3.7 8th 33.8
Nowra RAN Air Station AWS 17.0   23.1 31st 6.9   1.5 18th 30.0
South Coast (district 69)
Batemans Bay (Catalina Country Club) 17.4   21.4 19th 4.0   0.0 7th 26.6 56.5 average 47%
Bega AWS 17.4   22.1 19th 2.8   -1.2 21st 9.2
Braidwood Racecourse AWS 11.9   15.5 31st 1.4   -4.6 8th 55.8 46.5 high 120%
Green Cape AWS 15.9   20.7 19th 8.9   6.6 25th 22.8
Merimbula Airport AWS 17.1   23.0 19th 4.1   0.0 21st 28.4
Montague Island Lighthouse 16.2 +0.1 20.5 19th 10.1 -0.1 8.3 8th 39.2 53.3 average 74%
Moruya Airport AWS 17.4   22.0 19th 3.8   -1.0 17th 24.2
Moruya Heads Pilot Station 17.2 +0.1 21.0 19th 7.2 +0.7 3.4 7th 25.4 53.7 average 47%
Narooma Vmr 16.8 0.0 24.5 19th 7.0 -0.3 4.5 6th 30.2 49.6 average 61%
Nerriga Composite 12.5 -1.0 17.0 31st 1.3 +0.5 -6.0 7th 54.3 56.1 high 97%
Ulladulla AWS 16.6   20.5 31st 8.9   5.8 8th 38.8
Southern Tablelands (Goulburn-Monaro) (district 70)
Bombala (Therry Street) 12.3 -0.4 17.3 31st -0.2 0.0 -3.4 9th 37.6 40.0 average 94%
Bombala AWS 10.6   15.8 14th 0.5   -3.3 8th 45.0
Canberra Airport 12.3   15.3 13th 1.7   -4.2 7th 69.2
Canberra Airport Comparison 12.1 -0.9 15.3 13th 2.2 +1.2 -3.5 7th 54.8 46.2 high 119%
Cooma Airport AWS 10.2   15.5 31st -0.9   -5.6 8th 41.4 29.9 high 138%
Cooma Visitors Centre 11.5 -1.9 15.2 31st -1.2 +0.7 -6.0 9th 34.6 27.2 high 127%
Goulburn Airport AWS 11.7   16.2 31st 1.5   -5.5 7th 62.2
Goulburn TAFE 11.6 -1.6 16.3 31st 2.3 +0.1 -3.9 8th 68.6 53.0 high 129%
Mount Ginini AWS 1.7   6.6 13th -3.6   -7.1 25th 189.8
Taralga Post Office 11.3 -0.5 16.0 31st 0.6 -0.6 -6.0 7th 103.7 66.9 high 155%
Tidbinbilla Nature Reserve 11.4 -1.3 15.0 31st 1.0 -0.2 -4.0 6th 119.7 93.2 high 128%
Tuggeranong (Isabella Plains) AWS 12.4   15.3 13th 1.8   -3.9 9th 35.4
Yass (Linton Hostel) 12.0 -1.4 16.4 9th 2.5 +0.6 -3.1 9th 90.4 59.3 high 152%
Southern Tablelands (Snowy Mountains) (district 71)
Charlotte Pass (Kosciusko Chalet) 1.6 -1.0 6.0 29th -5.5 +0.2 -12.0 8th 227.8 207.6 average 110%
Perisher Valley AWS 2.6   7.8 13th -4.8   -10.2 7th 344.2
Thredbo AWS -1.2 -1.7 3.6 10th -5.8 -0.9 -10.4 7th 39.6 125.9 low 31%
Thredbo Village 5.0 -1.6 9.8 31st -3.7 -1.2 -11.5 6th 340.7 195.9 v high 174%
Southwest Slopes (South) (district 72)
Albury Airport AWS 13.2   16.0 10th 3.4   -1.3 8th 100.4
Cabramurra SMHEA AWS 2.8   9.6 13th -2.1   -4.8 17th 187.0
Hume Reservoir 13.3 -0.9 16.4 10th 4.6 -0.3 0.3 17th 104.8 76.5 high 137%
Khancoban AWS 12.0   16.6 10th 3.0   -2.5 8th 172.8
Tumbarumba Post Office 10.2 -2.0 16.0 10th 1.1 +0.2 -4.2 7th 195.8 107.1 v high 183%
Wagga Wagga AMO 13.1 -1.4 16.2 3rd 3.7 +0.1 -1.7 8th 94.8 51.5 v high 184%
Southwest Slopes (North) (district 73)
Burrinjuck Dam 12.6 -0.8 16.2 3rd 4.2 +0.5 0.2 9th 167.6 99.1 v high 169%
Cootamundra Airport 12.9   17.5 10th 2.0   -3.8 8th 87.6
Gundagai (William St) 13.2   18.0 10th 3.7   -2.8 7th 100.6
Quandialla Post Office 13.9 -2.3 17.8 9th 3.5 0.0 -1.0 7th 64.2 42.6 high 151%
Temora Airport 12.9   16.5 3rd 2.9   -2.5 9th 63.0
Wyalong Post Office 13.7 -2.2 17.8 31st 4.3 +0.4 -0.6 9th 50.4 39.1 high 129%
Young Airport 12.5   16.9 10th 2.1   -3.2 7th 90.4
Riverina (East) (district 74)
Corowa Airport 13.6 -1.4 16.2 10th 3.9 +0.2 -1.0 7th 92.0 53.4 v high 172%
Deniliquin Airport AWS 13.8   16.1 30th 4.8   -0.2 7th 66.2
Narrandera Airport 13.9   17.9 10th 3.8   -1.8 7th 34.0 39.1 average 87%
Narrandera Golf Club 13.8 -2.2 17.7 10th 4.1 0.0 -1.5 17th 43.2 43.3 average 100%
Tocumwal Airport 13.6 -2.2 16.0 30th 3.9 -0.4 -0.6 7th 70.8 43.2 high 164%
Yanco Agricultural Institute 13.6   17.9 10th 5.0   1.6 17th 35.2
Riverina (West) (district 75)
Griffith Airport AWS 14.1 -2.4 17.9 10th 4.1 +0.2 -0.9 17th 47.0 35.9 average 131%
Hay (Miller Street) 14.7 -2.6 19.2 31st 4.8 +0.2 0.0 17th 48.6 32.1 high 151%
Hay Airport AWS 14.9   18.8 31st 4.2   -1.3 17th 38.6
Hillston Airport 15.0 -2.1 20.0 31st 4.3 -0.7 -1.0 7th 33.8 31.0 average 109%
Lake Cargelligo Airport 14.4 -3.2 19.8 31st 4.4 -0.2 0.3 7th 18.2 33.5 low 54%

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 2 pm on Wednesday 1 September 2010. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

A note about deciles: Deciles are used to give an element (in this case rainfall or temperature) a ranking. Deciles are calculated by arranging the totals in ascending order (from lowest to highest) then splitting them into 10 equal groups (thus the groups are called deciles). The first group would be in decile range one, the second group in decile range two, etc up to the highest annual totals (highest 10 per cent) being in decile range 10.

1Averages: Averages are based on the period 1961 to 1990 which is a convention of the World Meteorological Organisation.

Normals are long-term averages 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 for temperature and less than 30 years of record for rainfall, as they cannot then be calculated reliably.

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