NSW in September 2011: Above average rainfall in northern NSW

  • Slightly above average rainfall.
  • 10th warmest September on record for maximum temperatures.
  • Close to average minimum temperatures.

Rainfall

The average rainfall in NSW during September was 38.3 mm, slightly above the historical average of 34.7 mm. Rainfall was highest in the north of the state, with moderate falls in northern parts associated with a low pressure trough on the 9th in addition to a significant rain event across most of NSW on the 29th, the latter breaking daily rainfall records at several locations. Southern areas had average to below average rain during the month, with clear conditions dominating for most of early September. The average rainfall in the Murray-Darling Basin was 35.7 mm, slightly above the historical average of 34.0 mm.

Total falls were highest in the Snowy Mountains, reaching 248.9 mm at Charlottes Pass, with a two-day total of 195 mm between the 28th and 29th. Rainfall was also high on the Central Coast, reaching 247 mm at Wyong, with particularly heavy falls in coastal regions associated with moist easterly windflow and embedded thunderstorms on the 24th and 25th.

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

Temperature

The average maximum temperature in NSW during September was 22.6 °C, 2 °C above average and the 10th warmest on record. Temperatures were above average across the state, but warmest in the southwest, much of which was more than 2 °C above average. Temperatures were particularly warm between the 16th and 19th when much of inland NSW was more than 8 °C above average, reaching 34.2 °C at Tibooburra PO on the 18th.

The average minimum temperature in NSW was 7.0 °C during September, 0.1 °C below the historical average. Temperatures were within 1 °C of average across most of the state, associated with close to average rainfall during the month. Temperatures were particularly warm associated with a rain event on the 28th and 29th, with large areas in the northwest more than 8 °C above average, including the warmest September night on record at Menindee. The mean daily temperature was consequently 1 °C above average at 14.8 °C.

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

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

Other phenomena

Damaging winds were experienced across the state on the 20th, with gusts reaching 107 km/hr at Mt Ginini and Murrurundi Gap and 96 km/hr at Albion Park. These caused light wind damage across the state, primarily associated with fallen trees and branches.

Heavy rain and storms hit the Central Coast, Metropolitan and Hunter regions on the 24th and 25th, causing minor property damage associated with heavy rain and fallen trees. Damage was greatest on the North Coast, with significant damage to several properties in Coraki (near Ballina).

Thunderstorms were reported across the state on the 28th and 29th, with several reports of small hail in addition to heavy rain.

Further information

Media
(03) 9669 4057
Enquiries

Extremes in September 2011
Hottest day 34.2 °C at Tibooburra Post Office on the 18th
Warmest days on average 26.8 °C at Tibooburra Post Office
Coolest days on average 4.1 °C at Thredbo AWS
Coldest day -2.8 °C at Thredbo AWS on the 9th
Coldest night -8.9 °C at Perisher Valley AWS on the 8th
Coolest nights on average -2.4 °C at Thredbo AWS
Warmest nights on average 14.7 °C at Byron Bay (Cape Byron AWS)
Warmest night 20.7 °C at Walgett Airport AWS on the 20th
Warmest on average overall 18.5 °C at Tibooburra Post Office
Coolest on average overall 0.9 °C at Thredbo AWS
Wettest overall 248.9 mm at Charlotte Pass (Kosciusko Chalet)
Wettest day 175.0 mm at Wyong (Jilliby (Jilliby Creek)) on the 26th
Highest wind gust119 km/h at Thredbo AWS on the 6th

Record highest September daily rainfall
Highest daily rainfall
in September 2011 (mm)
Previous wettest
for September
Years of
record
Nyngan Airport 54.0 on the 29th 53.5 on the 2nd in 1997 130
Collarenebri (Albert St) 66.2 on the 29th 62.7 on the 29th in 1906 125
Mungindi Post Office 61.2 on the 29th 53.6 on the 29th in 1906 124
Wyee (Wyee Farms Rd) 127.2 on the 26th 121.9 on the 12th in 1950 113
Barham (Thule Street) 49.0 on the 29th 45.7 on the 9th in 1906 103
Geurie Post Office 57.0 on the 29th 55.0 on the 5th in 1978 102
Tooraweenah (Denham St) 55.0 on the 29th 48.3 on the 17th in 1903 91
Coolabah Post Office 55.0 on the 29th 54.8 on the 2nd in 1997 75
Merriwa (Roscommon) 44.4 on the 29th 39.4 on the 25th in 1992 42
Lord Howe Island Aero 85.0 on the 26th 71.6 on the 10th in 2004 23



Record highest total September rainfall
Total rainfall
for September 2011 (mm)
Previous wettest
for September
Years of
record
Average for
September
Merriwa (Roscommon) 110.6 97.6 in 1997 42 39.2
Lord Howe Island Aero 183.6 165.6 in 1993 23 110.4




Record highest September temperature
Highest temperature
in September 2011 (°C)
Previous warmest
for September
Years of
record
Average for
September
Braidwood Racecourse AWS 26.2 on the 19th 25.8 on the 22nd in 2003 21 16.4



Record lowest September daily maximum temperature
Lowest daily maximum
temperature
in September 2011 (°C)
Previous coolest
for September
Years of
record
Average for
September
Braidwood Racecourse AWS 8.4 on the 24th = 8.4 on the 25th in 1995 21 16.4



Record highest September daily minimum temperature
Highest daily minimum
temperature
in September 2011 (°C)
Previous warmest
for September
Years of
record
Average for
September
Menindee Post Office 20.2 on the 28th 19.6 on the 24th in 2001 49 8.0


Summary statistics for September 2011
Maximum temperatures
for September
(°C)
Minimum temperatures
for September
(°C)
Rainfall
for September
(millimetres)
Mean for
September
2011
Diff
from
average
Highest for
September
2011
Mean for
September
2011
Diff
from
average
Lowest for
September
2011
Total for
September
2011
Average
for
September
Rank of
September
2011
Fraction of
September
average
Western (Far Northwest) (district 46)
Fowlers Gap AWS 25.4   32.2 18th 8.3   1.0 13th 4.8
Tibooburra Airport 26.5   33.3 18th 10.4   5.4 10th 15.4
Tibooburra Post Office 26.8 +2.3 34.2 18th 10.3 0.0 4.4 13th 15.4 12.5 high 123%
White Cliffs AWS 25.7   32.7 17th 9.8   3.9 9th 6.0
White Cliffs Post Office 25.8 +1.9 32.8 17th 8.3 -0.7 1.7 13th 7.2 14.9 average 48%
Wilcannia (Reid St) 25.8 +2.3 33.6 16th 7.3 -1.2 0.7 13th 7.8 15.9 average 49%
Wilcannia Aerodrome AWS 26.2   33.4 19th 7.7   1.7 13th 5.0
Western (Lower Darling) (district 47)
Broken Hill (Patton Street) 24.1 +3.0 31.3 16th 10.1 +1.2 3.0 25th 17.6 20.4 average 86%
Broken Hill Airport AWS 23.8 +2.4 31.0 27th 8.3 -0.2 2.0 7th 10.2 21.4 average 48%
Lake Victoria Storage 22.7 +2.3 33.9 17th 7.4 -0.7 1.5 13th 3.1 24.3 v low 13%
Menindee Post Office 24.9 +2.1 33.8 16th 9.4 +1.4 3.4 1st 10.2 18.6 average 55%
Pooncarie Mail Agency 24.7   33.0 17th 7.8   0.8 7th 16.0 21.6 average 74%
Western (Upper Darling) (district 48)
Bourke Airport AWS 26.1   33.8 17th 8.4   1.8 1st 54.0
Cobar Airport AWS 23.9   31.8 19th 7.6   -0.2 13th 24.4
Cobar MO 24.2 +2.3 32.3 19th 9.7 +0.6 3.5 12th 29.2 25.2 high 116%
Collarenebri (Albert St) 25.5 +0.6 33.3 24th 8.7 -0.1 2.0 2nd 94.4 25.9 v high 364%
Lightning Ridge Visitors Information Cen 26.1   34.0 24th 10.0   3.9 11th 65.2
Wanaaring Post Office 26.2   33.6 18th 7.9   1.5 1st 40.4 14.4 high 281%
Western (Southwest Plains) (district 49)
Balranald (RSL) 22.3 +1.4 32.1 17th 6.5 -0.6 -0.4 12th 20.0 29.3 average 68%
Ivanhoe Aerodrome AWS 24.7   33.0 17th 8.5   1.0 7th 20.4
Ivanhoe Post Office 25.0 +2.4 33.0 19th 7.4 +0.2 -0.8 7th 27.8 22.2 high 125%
Central Western Plains (South) (district 50)
Condobolin Ag Research Stn 22.9 +2.4 31.7 19th 5.9 +0.1 -2.3 13th 18.2 31.5 average 58%
Condobolin Airport AWS 22.8   32.0 17th 6.1   -1.6 13th 14.4
Peak Hill Post Office 22.6 +2.2 30.9 19th 8.7 +0.8 1.5 13th 43.5 38.6 average 113%
West Wyalong Airport AWS 21.3   31.2 19th 4.9   -1.6 8th 30.6
Central Western Plains (North) (district 51)
Coonamble Airport AWS 24.1   32.2 18th 7.0   0.5 13th 73.8
Nyngan Airport 24.4 +1.9 32.2 18th 8.0 +0.2 2.0 14th 65.4 27.8 v high 235%
Trangie Research Station AWS 23.5 +2.6 32.5 18th 6.6 +0.2 -0.2 13th 50.4 31.6 high 159%
Northwest Plains (West) (district 52)
Mungindi Post Office 26.1 +1.1 33.0 24th 9.5 +0.1 4.0 13th 83.8 27.3 v high 307%
Walgett Airport AWS 25.6   33.1 24th 7.4   -0.5 2nd 44.0
Northwest Plains (East) (district 53)
Moree Aero 23.9   30.6 18th 8.6   2.9 11th 57.6
Northwest Slopes (North) (district 54)
Barraba Post Office 22.7 +1.3 29.6 18th 3.2 -1.0 -1.6 14th 93.8 44.2 v high 212%
Narrabri Airport AWS 23.6   30.3 24th 7.5   1.0 11th 80.8
Northwest Slopes (South) (district 55)
Gunnedah Airport AWS 23.5   30.5 24th 5.0   -1.5 13th 88.8
Gunnedah Pool 24.3 +1.5 30.1 18th 7.8 +0.8 2.0 11th 42.2 39.9 average 106%
Gunnedah Resource Centre 23.4 +2.0 30.5 18th 9.2 +0.6 3.9 12th 86.6 40.4 v high 214%
Quirindi Post Office 23.1 +1.6 29.8 18th 5.3 +0.3 -0.2 13th 69.2 46.8 high 148%
Tamworth Airport AWS 22.5   29.2 24th 5.1   0.3 14th 119.2
Woolbrook (Danglemah Road) 18.1 +0.4 24.0 24th 1.3 -0.6 -4.5 14th 110.9 56.7 high 196%
Northern Tablelands (West) (district 56)
Armidale (Tree Group Nursery) 17.8   24.3 19th 1.8   -4.0 13th 73.8
Armidale Airport AWS 16.8   23.1 19th 4.1   -1.6 13th 73.0
Glen Innes Ag Research Stn 17.1 +0.1 22.5 19th 3.1 -1.0 -1.5 13th 61.8 55.1 average 112%
Glen Innes Airport AWS 17.1   22.7 19th 1.2   -4.6 13th 75.0
Glen Innes Post Office 18.1 +0.3 23.9 19th 4.3 +0.3 -0.9 13th 64.1 56.3 average 114%
Guyra Hospital 15.2 -0.1 21.7 19th 3.7 -0.2 -1.4 13th 90.9 61.0 high 149%
Inverell (Raglan St) 21.2   27.2 18th 2.7   -2.0 14th 62.8
Inverell Research Centre 20.6 +0.7 26.5 18th 6.3 -0.7 1.0 13th 52.8 48.2 average 110%
Tenterfield (Federation Park) 19.5 0.0 25.3 19th 3.6 -1.1 -2.0 13th 19.0 50.8 low 37%
Northern Tablelands (East) (district 57)
Tabulam (Muirne) 21.2 -0.3 28.0 17th 9.4 -1.0 4.6 10th 25.2 39.6 average 64%
Upper North Coast (district 58)
Ballina Airport AWS 23.6   32.0 18th 10.3   5.6 15th 58.4
Byron Bay (Cape Byron AWS) 21.9   28.5 18th 14.7   9.8 10th 36.6
Casino Airport 25.2 -0.4 32.8 17th 10.1 -0.1 6.3 11th 12.0 42.2 low 28%
Casino Airport AWS 24.6   32.3 17th 10.0   6.0 12th 7.6
Evans Head RAAF Bombing Range AWS 23.3   32.9 18th 12.5   8.1 10th 66.0
Grafton Airport AWS 24.1   32.6 17th 8.7   3.1 11th 39.8
Grafton Olympic Pool 24.9 +0.1 33.0 17th 10.4 0.0 5.7 15th 44.7 36.9 average 121%
Grafton Research Stn 24.4   32.9 17th 10.6   6.2 14th 52.0 43.9 average 118%
Lismore (Richmond Hill)     27.4 23rd 11.4   8.2 11th 27.4
Lismore Airport AWS 24.9   32.5 17th 9.0   3.9 15th 16.6
Murwillumbah (Bray Park)     32.7 17th 11.4 -0.1 7.7 12th 21.5 42.1 average 51%
Lower North Coast (district 59)
Coffs Harbour MO 22.6 +0.7 32.2 18th 10.8 -0.2 6.0 11th 30.2 61.5 average 49%
Dorrigo (Old Coramba Rd) 18.1   25.8 17th 7.1   1.0 11th 55.6
Kempsey (Wide Street) 23.6 -0.4 31.8 18th 9.7 +0.8 4.5 14th 46.8 56.2 average 83%
Kempsey Airport AWS 23.8   33.1 18th 8.4   3.4 14th 35.4
South West Rocks (Smoky Cape Lighthouse) 22.7 +0.9 30.4 18th 13.7 +0.3 9.0 10th 65.1 56.6 average 115%
Manning (district 60)
Forster - Tuncurry Marine Rescue 21.6   32.0 18th 10.8   6.8 14th 104.3 67.0 high 156%
Port Macquarie Airport AWS 22.2   32.6 18th 9.2   5.0 14th 154.2
Taree Airport AWS 22.9   32.0 18th 9.7   3.9 14th 119.6
Yarras (Mount Seaview) 23.6 +0.3 31.6 18th 9.0 +0.4 4.1 14th 116.8 71.6 high 163%
Hunter (district 61)
Cessnock (Nulkaba) 23.3 +0.6 32.5 18th 8.3 +0.5 2.4 13th 95.8 43.8 v high 219%
Cessnock Airport AWS 22.3 -0.1 31.6 18th 7.7 +0.8 1.0 13th 87.6 47.4 high 185%
Cooranbong (Lake Macquarie AWS) 22.2   31.9 18th 7.9   1.7 13th 116.2
Gosford (Narara Research Station) AWS 21.9 +0.6 31.9 18th 8.5 +0.8 2.7 13th 178.8 68.8 v high 260%
Jerrys Plains Post Office 23.5 +0.6 32.0 18th 7.4 +0.4 2.5 21st 81.7 42.0 high 195%
Maitland Visitors Centre 23.3   32.4 18th 8.4   4.5 22nd 72.7
Mangrove Mountain AWS 20.6   30.2 18th 9.0   3.5 13th 139.6
Merriwa (Roscommon) 21.9   29.6 18th 5.4   -0.1 22nd 110.6 39.2 highest 282%
Murrurundi Gap AWS 18.4   25.4 18th 8.3   2.7 10th 69.4
Murrurundi Post Office 21.2 +0.6 28.1 18th 5.0 0.0 -1.0 3rd 81.8 58.3 high 140%
Nelson Bay (Nelson Head) 21.5 +0.1 30.0 18th 13.6 +2.1 9.2 13th 139.2 89.5 high 156%
Newcastle Nobbys Signal Station AWS 21.1 +0.9 31.2 18th 13.0 +1.6 8.2 13th 96.6 72.9 high 133%
Newcastle University 22.8   32.5 18th 10.5   6.0 13th 117.0
Norah Head AWS 21.3   31.1 18th 12.8   7.8 10th 138.8
Paterson (Tocal AWS) 22.8 +0.5 32.3 18th 9.8 +0.9 3.9 13th 83.6 50.0 high 167%
Peats Ridge (Waratah Road) 20.2 -0.4 29.7 23rd 9.1 +0.4 4.0 10th 153.0 75.8 high 202%
Scone Airport AWS 21.7   29.4 18th 6.5   -0.4 3rd 64.8
Singleton STP 22.3   31.0 18th     1.1 13th 71.6
Williamtown RAAF 22.6 +1.3 32.4 18th 9.8 +0.7 4.5 13th 83.8 60.5 high 139%
Central Tablelands (North) (district 62)
Gulgong Post Office 21.0 +1.4 28.5 17th 5.9 -0.2 0.3 13th 114.6 46.8 v high 245%
Mudgee Airport AWS 20.2   28.2 18th 4.2   -2.2 13th 92.4
Nullo Mountain AWS 14.5   22.2 18th 6.0   -1.2 10th 106.2
Central Tablelands (South) (district 63)
Bathurst Agricultural Station 18.1 +1.8 26.2 19th 2.0 -1.4 -4.1 13th 101.2 47.1 v high 215%
Bathurst Airport AWS 17.7   25.6 18th 2.5   -3.1 13th 117.0
Katoomba (Murri St) 15.8 +1.3 24.7 18th 6.3 +1.0 -0.7 10th 114.4 72.5 high 158%
Lithgow (Cooerwull) 16.3   24.1 18th 3.9   -3.4 3rd 78.4 56.9 high 138%
Mount Boyce AWS 15.1   23.6 19th 5.6   -1.6 10th 77.6
Oberon (Springbank) 14.8 +1.2 22.3 19th 2.6 +0.3 -2.7 13th 71.8 67.5 average 106%
Orange Agricultural Institute 15.2 +1.2 22.8 18th 4.4 +0.2 -1.6 11th 77.8 80.1 average 97%
Orange Airport AWS 15.2   23.0 19th 2.6   -3.6 8th 87.0
Springwood (Valley Heights) 21.1   31.2 18th 9.7   5.0 13th 86.4 55.9 high 155%
Central Western Slopes (North) (district 64)
Coonabarabran (Namoi Street) 21.7 +1.3 27.9 24th 2.6 -0.9 -2.7 14th 90.1 50.0 high 180%
Coonabarabran Airport AWS 20.4   27.3 18th 9.1   2.7 10th 84.8
Dunedoo Post Office 22.4 +1.8 29.9 19th 6.1 +0.3 0.1 13th 89.1 43.0 high 207%
Central Western Slopes (South) (district 65)
Cowra Airport AWS 20.7   29.9 19th 3.2   -2.7 13th 38.2
Dubbo Airport AWS 22.3   30.7 18th 5.5   -1.0 13th 81.8
Forbes Airport AWS 22.0   30.9 17th 3.8   -2.0 8th 28.0
Parkes (Macarthur Street) 22.1 +2.6 30.8 18th 7.1 -0.2 0.0 13th 25.0 41.8 average 60%
Parkes Airport AWS 20.2   28.1 19th 3.9   -2.3 8th 28.8 43.9 average 66%
Wellington (Agrowplow) 21.8 +1.1 29.9 19th 4.8 -0.6 -1.1 13th 65.6 44.5 high 147%
Metropolitan (East) (district 66)
Bankstown Airport AWS 21.9 +0.4 31.0 23rd 9.1 +0.4 4.3 13th 65.8 45.1 high 146%
Canterbury Racecourse AWS 21.4   30.8 23rd 9.0   3.6 13th 65.4
Holsworthy Control Range 21.6   30.5 23rd 8.0   1.4 13th 55.0
Parramatta North (Masons Drive) 22.0 +0.4 31.5 23rd 9.8 +0.5 5.3 10th 102.8 54.5 v high 189%
Riverview Observatory 21.4 +0.7 31.0 23rd 10.7 +1.3 5.2 13th 71.9 62.4 average 115%
Sydney (Observatory Hill) 21.7 +1.7 32.5 23rd 12.5 +1.4 7.4 10th 71.6 68.9 average 104%
Sydney Airport AMO 21.7 +1.2 32.1 23rd 12.3 +2.0 6.6 10th 53.6 60.8 average 88%
Sydney Harbour (Wedding Cake West) 19.9   30.0 23rd 13.4   8.8 10th
Sydney Olympic Park AWS (Archery Centre) 21.9   31.8 23rd 10.1   5.0 13th 93.0
Terrey Hills AWS 20.1   29.6 23rd 10.9   5.8 10th 118.0
Metropolitan (West) (district 67)
Badgerys Creek AWS 22.1   31.0 23rd 7.8   1.2 13th 68.4
Horsley Park Equestrian Centre AWS 22.0   31.2 23rd 9.3   2.9 13th 82.8
Penrith Lakes AWS 23.1   32.4 18th 9.4   3.4 13th 68.4
Prospect Reservoir 22.1 +0.8 30.4 23rd 9.7 +0.3 4.0 13th 57.7 47.1 high 123%
Richmond RAAF 22.3   32.0 18th 7.7   0.9 13th 87.4
Illawarra (district 68)
Albion Park (Wollongong Airport) 20.4   30.9 23rd 8.9   3.5 13th 63.6
Bellambi AWS 19.9   30.8 23rd 12.6   8.0 10th 90.2
Bowral (Parry Drive) 16.4 +0.2 24.8 18th 6.5 +1.4 0.8 10th 39.8 56.7 average 70%
Camden Airport AWS 22.3 +0.4 30.9 23rd 7.2 +0.4 -0.6 13th 62.6 40.1 high 156%
Campbelltown (Mount Annan) 22.1   30.8 23rd 7.6   0.6 13th 40.6
Jervis Bay (Point Perpendicular AWS) 19.0   27.8 23rd 12.1   7.8 10th 61.2
Kiama (Bombo Headland) 19.5   30.3 23rd 12.2   8.0 10th 52.8
Moss Vale AWS 16.2   24.7 17th 5.9   0.6 10th 21.0
Nowra RAN Air Station AWS 20.1   29.6 23rd 8.3   4.3 12th 55.0
South Coast (district 69)
Batemans Bay (Catalina Country Club) 19.7   25.6 14th 7.3   2.1 10th 47.0 61.5 average 76%
Bega AWS 20.3   25.5 17th 6.0   0.2 13th 9.0
Braidwood Racecourse AWS 16.8 +0.4 26.2 19th 2.6 -0.7 -4.9 3rd 22.0 51.5 low 43%
Merimbula Airport AWS 19.1   25.3 14th 7.2   2.0 7th 10.6
Montague Island Lighthouse 17.9 +0.5 22.3 14th 12.2 +1.0 9.1 10th 17.8 56.3 low 32%
Moruya Airport AWS 19.7   26.4 14th 7.2   1.6 10th 42.4
Moruya Heads Pilot Station 18.8 +0.1 25.0 14th 9.6 +1.1 5.5 12th 45.2 60.3 average 75%
Narooma Vmr 18.6 +0.4 25.2 14th 9.8 +0.9 6.3 13th 19.7 60.0 low 33%
Nerriga Composite 17.5 +1.2 26.1 19th 3.1 -0.4 -4.6 13th 43.4 53.0 average 82%
Ulladulla AWS 19.0   25.4 6th 11.4   6.8 10th 51.4
Southern Tablelands (Goulburn-Monaro) (district 70)
Bombala (Therry Street) 17.0 +1.3 26.3 19th 2.2 0.0 -4.0 3rd 18.8 44.2 low 43%
Bombala AWS 15.2   24.5 19th 2.5   -3.2 3rd 19.2
Canberra Airport 18.2   27.1 19th 1.9   -5.2 10th 32.6
Cooma Airport AWS 15.6   23.3 19th 1.0   -7.5 13th 31.0 36.0 average 86%
Cooma Visitors Centre 17.0 +0.8 26.0 19th 0.7 -0.5 -6.6 13th 19.2 34.8 low 55%
Goulburn Airport AWS 17.2   27.0 19th 2.3   -5.0 3rd 39.4
Goulburn TAFE 17.2 +0.8 27.2 19th 5.0 +0.5 -1.1 3rd 39.8 49.3 average 81%
Mount Ginini AWS 7.9   17.3 19th -0.2   -6.6 10th 75.2
Taralga Post Office 16.4 +1.6 25.5 19th 2.8 -0.3 -2.5 12th 53.3 61.8 average 86%
Tuggeranong (Isabella Plains) AWS 17.9   26.0 19th 2.7   -4.0 10th 40.4
Southern Tablelands (Snowy Mountains) (district 71)
Charlotte Pass (Kosciusko Chalet) 7.0 +2.1 14.0 19th     -7.0 12th 248.9 193.6 high 129%
Perisher Valley AWS 7.2   15.2 19th -1.1   -8.9 8th 234.4
Thredbo AWS 4.1 +1.0 10.3 19th -2.4 +0.7 -8.6 12th 144.4 150.8 average 96%
Thredbo Village 10.8 +1.2 18.0 19th -0.1 +0.4 -8.0 14th 226.4 216.4 average 105%
Southwest Slopes (South) (district 72)
Albury Airport AWS 18.7   26.7 19th 5.0   -0.1 7th 52.2
Cabramurra SMHEA AWS 8.5   18.0 19th 1.6   -3.8 12th 160.2
Hume Reservoir 18.5 +1.2 26.4 19th 6.2 -0.5 -0.5 12th 51.5 62.1 average 83%
Khancoban AWS 16.6   25.4 19th 3.6   -1.6 12th 116.2
Tumbarumba Post Office 16.1 +0.9 25.0 19th 2.4 -0.6 -3.5 12th 114.6 91.3 high 126%
Wagga Wagga AMO 18.9 +1.3 28.7 19th 4.6 -0.5 -2.7 12th 39.8 49.7 average 80%
Southwest Slopes (North) (district 73)
Burrinjuck Dam 17.8 +1.1 26.0 19th 5.3 -0.4 0.5 14th 76.7 84.1 average 91%
Cootamundra Airport 18.7   28.4 19th 3.1   -3.7 12th 52.0
Grenfell (Manganese Rd) 19.7 +1.3 28.5 19th 4.7 -1.5 -1.5 8th 28.2 50.4 average 56%
Gundagai (William St) 18.4   28.6 19th 4.3   -1.4 13th 45.6
Quandialla Post Office 21.0 +1.5 30.7 19th 5.8 +0.2 -1.0 13th 21.6 40.6 low 53%
Temora Airport 19.9   29.9 19th 3.6   -3.1 14th 30.4
Wyalong Post Office 21.3 +1.9 30.9 19th 6.3 +0.1 0.7 8th 27.4 36.8 average 74%
Young Airport 18.7   27.7 19th 1.7   -4.3 13th 33.8
Riverina (East) (district 74)
Corowa Airport 19.3 +0.8 29.6 19th 5.1 -0.6 -1.6 12th 48.8 48.5 average 101%
Deniliquin Airport AWS 20.6   31.7 19th 5.8   -0.7 12th 34.0
Narrandera Airport 21.1   31.5 19th 5.7   -1.2 12th 16.2 36.1 low 45%
Narrandera Golf Club 20.8 +1.7 31.2 19th 6.7 +0.6 0.2 24th 19.3 41.4 low 47%
Tocumwal Airport 19.7 +0.9 31.2 19th 5.7 -0.6 -0.3 8th 40.0 39.2 average 102%
Yanco Agricultural Institute 21.0   31.6 19th 7.4   0.4 12th 17.4 35.4 average 49%
Riverina (West) (district 75)
Griffith Airport AWS 21.8 +2.0 32.0 19th 6.5 +0.7 -1.9 12th 17.8 32.9 low 54%
Hay (Miller Street) 22.8 +2.1 32.5 19th 7.0 +0.3 -0.1 12th 30.2 31.6 average 96%
Hay Airport AWS 22.9   33.0 19th 5.8   -1.3 12th 24.4
Hillston Airport 23.4 +2.7 33.9 19th 7.3 +0.1 -0.5 12th 21.4 27.9 average 77%
Lake Cargelligo Airport 22.7 +1.2 32.6 19th 6.3 -0.8 0.3 7th 11.4 31.4 low 36%
Offshore Islands (district 200)
Lord Howe Island Aero 19.8 -0.2 22.7 18th 14.1 -0.5 9.4 1st 183.6 110.4 highest 166%
Norfolk Island Aero 19.0 0.0 20.7 30th 13.7 0.0 11.3 21st 142.2 94.7 high 150%

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 9 am on Tuesday 4 October 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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