NSW: Coldest winter in over a decade

  • Wettest winter since 2005 for NSW and the Murray Darling Basin
  • Coldest winter since 1998 for statewide average maximum temperatures
  • 16th coolest winter on record
  • Slightly above average minimum temperatures

Rainfall

NSW experienced its wettest winter since 2005. Despite the dry start to the season, with just 30.2 mm of rainfall recorded in June, above average rainfall in July (66.0 mm) and August (40.7 mm) lifted the statewide winter average to 136.9 mm, which is above the historical winter average1of 115.97 mm. This is the first time NSW has experienced above average winter rainfall since 2005, when 180.7 mm was recorded.

Northern inland regions of NSW received above to very much above average rainfall during winter, predominantly during July and August. Elsewhere in the state about average rainfall was recorded, with only a small region on the far southeast coast recording below to very much below average rainfall. The above average rainfall experienced in the latter part of winter can, in part, be attributed to two main climate influences - the La Niña event in the Pacific Ocean and the Indian Ocean Dipole (IOD). The IOD moved into sustained negative mode during July and August, contributing to the enhanced rainfall across NSW during these months. La Niña events are usually, but not always, associated with enhanced rainfall across eastern Australia, particularly inland regions. For more about La Niña and the IOD please refer to the ENSO Wrap Up.

As with NSW, the Murray Darling Basin (MDB) experienced a dry start to winter, with June recording just 23.6 mm of rainfall (basin-wide average). However, above average falls in July (60.1 mm) and August (51.4 mm) offset this dry month, resulting in a basin-wide winter average of 135.1 mm, which is above the historical winter average of 111.1 mm. This was the first time the MDB has experienced above average winter rainfall since 2005, when 170.2 mm of rainfall was recorded.

See a map of rainfall deciles.

Temperature

NSW experienced it's coldest winter since 1998 for statewide average maximum temperatures, with below to very much below average temperatures recorded across much of NSW. Interestingly, winter did not begin cold - above average temperatures were recorded in both June and July. However, day-time temperatures plummetted in August, bringing the overall winter average to 15.9°C, which is 0.3 °C below the historical average of 16.2 °C. This is the first time NSW has experienced below average winter maximums since 1998 (15.9 °C) and is the 16th coolest winter on record for NSW.

The cool day-time temperatures experienced during August were, in part, due to the passage of winter cold fronts across southern Australia during the month. The late appearance of these cold fronts can be attributed to the Southern Annular Mode (SAM). In it's positive mode since late May, it effectively inhibited the passage of westerlies and cold fronts across southern Australia during much of winter. However, during August, the SAM turned negative, allowing westerlies and cold fronts to again pass through southern Australia, bringing cold, wet conditions.

Minimum temperatures showed little variation during winter, with close to average night-time temperatures recorded in June, July and August. However, July was the warmest of the three months, with an average maximum temperature 0.7 °C above the average. These consecutive months of near average temperatures resulted in a winter statewide average minimum temperature of 4.6 °C, which is just 0.3 °C above the historical winter average of 4.3 °C. This is the fourth consecutive winter with above average minimum temperatures for NSW.

The statewide average mean temperature for winter was 10.2 °C which equals the historical average of 10.2 °C.

Some sites had their coldest winter day (lowest maximum temperature) on record.
See a map of maximum temperature anomalies.
Some sites had their lowest winter temperature on record.
See a map of minimum temperature anomalies.

Further information

Media
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Enquiries

Extremes in winter 2010
Hottest day 29.9 °C at Bourke Airport AWS on 18 Aug
Warmest days on average 21.3 °C at Grafton Olympic Pool
Coolest days on average 0.4 °C at Thredbo AWS
Coldest day -4.6 °C at Thredbo AWS on 25 Aug
Coldest night -19.6 °C at Charlotte Pass (Kosciusko Chalet) on 20 Jul
Coolest nights on average -5.1 °C at Thredbo AWS
Warmest nights on average 14.5 °C at Norfolk Island Aero
Warmest night 20.1 °C at Lord Howe Island Aero on 20 Aug
Wettest overall 774.1 mm at Thredbo Village
Wettest day 247.0 mm at Meerschaumvale (Meerschaum Vale (Barden) on 3 Jun
Highest wind gust 122 km/h at Jervis Bay (Point Perpendicular AWS) on 2 Aug


Record lowest winter daily maximum temperature
Lowest daily maximum
temperature
in winter 2010 (°C)
Previous lowest
for winter
Years of
record
Average for
winter
Casino Airport 12.9 on 2 Jul 13.3 on 11 Jul 1997 41 21.8



Record lowest winter temperature
Lowest temperature
in winter 2010 (°C)
Previous lowest
for winter
Years of
record
Average for
winter
Prospect Reservoir -0.8 on 30 Jun -0.6 on 17 Jul 2007 46 6.8
Lord Howe Island Aero 6.6 on 28 Jul 6.8 on 17 Aug 1994 22 14.1



Summary statistics for winter 2010
Maximum temperatures
for winter
(°C)
Minimum temperatures
for winter
(°C)
Rainfall
for winter
(millimetres)
Mean for
winter
2010
Diff
from
average
Highest for
winter
2010
Mean for
winter
2010
Diff
from
average
Lowest for
winter
2010
Total for
winter
2010
Average
for
winter
Rank of
winter
2010
Fraction of
winter
average
Western (Far Northwest) (district 46)
Fowlers Gap AWS 16.6   23.1 24 Jun 4.8   -0.8 28 Jun 48.0
Tibooburra Airport 17.7   25.2 31 Aug 6.6   0.5 29 Jun 62.2
Tibooburra Post Office 18.0 -0.9 25.9 31 Aug 6.6 +0.4 -0.1 28 Jun 67.2 45.0 high 149%
White Cliffs AWS 17.0   24.4 25 Jun 6.5   1.2 5 Jul 118.0
White Cliffs Post Office 17.2 -1.0 24.6 25 Jun 5.6 +0.6 -0.2 29 Jun 98.6 51.5 v high 191%
Wilcannia (Reid St) 17.3 -0.8 25.2 25 Jun 4.9 -0.2 -1.1 8 Jul 72.2 58.3 high 124%
Wilcannia Aerodrome AWS 17.2   25.1 25 Jun 4.8   -1.7 5 Jul 74.4
Western (Lower Darling) (district 47)
Broken Hill (Patton Street) 15.4 -0.6 22.0 24 Jun 6.0 0.0 1.8 6 Jul 50.6 59.4 average 85%
Broken Hill Airport AWS 15.2 -1.2 22.0 24 Jun 4.8 -0.6 -1.0 6 Jul 31.0 51.7 low 60%
Lake Victoria Storage 16.0 0.0 22.5 18 Aug 4.7 -1.1 -2.1 5 Jul 48.9 71.9 low 68%
Menindee Post Office 17.0 -0.9 24.4 24 Jun 5.7 +0.9 0.2 7 Aug 57.4 57.9 average 99%
Pooncarie Mail Agency 16.7   23.0 18 Aug 5.0   -0.8 17 Aug 84.6 71.3 average 119%
Western (Upper Darling) (district 48)
Brewarrina Hospital 18.2 -0.9 28.0 18 Aug 5.4 +0.2 -2.5 29 Jun 88.1 83.6 average 105%
Cobar Airport AWS 15.7   21.9 25 Jun 4.0   -3.0 29 Jun 83.6
Cobar MO 15.8 -0.9 22.0 25 Jun 5.5 -0.3 0.0 29 Jun 130.0 84.1 high 155%
Collarenebri (Albert St) 18.7 -0.8 26.1 19 Aug 5.6 +0.7 -3.7 30 Jun 139.4 95.6 high 146%
Lightning Ridge Visitors Information Cen 19.3   27.0 18 Aug 6.0   -3.5 30 Jun 140.4
Wanaaring Post Office 18.6   28.6 18 Aug     -1.2 29 Jun 77.7 52.3 high 149%
Western (Southwest Plains) (district 49)
Balranald (RSL) 15.2 -1.2 21.0 24 Jun 4.8 +0.6 -0.8 17 Aug 97.8 85.9 average 114%
Ivanhoe Aerodrome AWS 15.7   22.3 25 Jun 5.3   0.3 8 Jul 12.6
Ivanhoe Post Office 16.3 -1.1 23.0 25 Jun 4.2 -0.1 -2.0 8 Jul 77.9 73.5 average 106%
Central Western Plains (South) (district 50)
Condobolin Ag Research Stn 15.1 -0.7 20.8 25 Jun 3.7 +0.3 -2.5 7 Aug 101.6 100.8 average 101%
Condobolin Airport AWS 15.5   21.4 25 Jun 3.6   -2.2 13 Jun 112.8
Peak Hill Post Office 15.7 -0.4 21.0 3 Jun 5.9 +0.4 -1.1 30 Jun 180.3 130.7 high 138%
West Wyalong Airport AWS 13.9   19.5 25 Jun 3.7   -1.4 13 Jun 175.4
Central Western Plains (North) (district 51)
Coonamble Airport AWS 17.2   23.4 18 Aug 4.6   -2.5 30 Jun 161.6
Nyngan Airport 16.7 -0.6 21.5 31 Aug 5.2 +0.7 -2.0 30 Jun 135.8 91.9 high 148%
Trangie Research Station AWS 16.2 0.0 20.7 31 Aug 4.4 +0.6 -3.3 29 Jun 142.0 102.8 high 138%
Northwest Plains (West) (district 52)
Mungindi Post Office 19.6 -0.1 26.5 18 Aug 5.9 +0.5 -2.0 29 Jun 106.5 92.5 average 115%
Walgett Airport AWS 18.7   26.7 18 Aug 4.4   -5.2 30 Jun 127.6
Northwest Plains (East) (district 53)
Moree Aero 17.9   24.4 18 Aug 5.9   -3.3 28 Jun 135.8
Northwest Slopes (North) (district 54)
Barraba Post Office 16.5 -0.4 21.0 31 Aug 2.4 +1.4 -5.6 30 Jun 194.4 130.5 high 149%
Narrabri Airport AWS 17.5   23.2 13 Jul 5.4   -3.2 30 Jun 138.0
Northwest Slopes (South) (district 55)
Gunnedah Airport AWS 16.9   22.1 18 Aug 3.9   -5.8 30 Jun 185.0
Gunnedah Pool 17.4 -0.3 23.4 18 Aug 5.6 +1.8 -2.2 30 Jun 212.8 127.5 v high 167%
Gunnedah Resource Centre 16.6 -0.3 22.7 18 Aug 6.2 +0.7 -0.7 29 Jun 208.8 118.7 v high 176%
Quirindi Post Office 16.4 -0.4 22.1 18 Aug 3.2 +1.0 -4.6 30 Jun 230.0 145.1 v high 159%
Tamworth Airport AWS 16.4   21.3 18 Aug 4.1   -4.1 30 Jun 236.2
Woolbrook (Danglemah Road) 13.0 -0.5 18.0 13 Jul 0.7 +1.5 -8.5 30 Jun 223.4 151.5 high 147%
Northern Tablelands (West) (district 56)
Armidale (Tree Group Nursery) 12.8   19.0 30 Jul 0.8   -11.2 30 Jun 173.8
Armidale Airport AWS 11.8   18.0 30 Jul 2.3   -6.0 29 Jun 193.6
Glen Innes Ag Research Stn 12.5 -0.7 18.5 30 Jul 2.3 +1.1 -6.8 29 Jun 245.4 158.2 v high 155%
Glen Innes Airport AWS 12.9   18.9 30 Jul 0.8   -9.9 29 Jun 292.6
Glen Innes Post Office 13.2 -0.3 19.1 30 Jul 2.8 +1.5 -5.9 29 Jun 231.7 160.1 high 145%
Guyra Hospital 10.6 -0.7 16.8 30 Jul 1.5 +0.3 -5.0 29 Jun 255.6 158.9 v high 161%
Inverell (Raglan St) 16.1   21.2 30 Jul 2.1   -6.6 29 Jun 204.0
Inverell Research Centre 15.7 -0.1 20.8 30 Jul     -2.6 30 Jun 206.0 137.0 high 150%
Tenterfield (Federation Park) 14.9 -0.2 21.5 30 Jul 1.9 +0.2 -6.5 29 Jun 218.4 148.6 high 147%
Northern Tablelands (East) (district 57)
Tabulam (Muirne) 16.5 -0.5 23.0 30 Jul 7.6 -0.2 2.8 30 Jun 178.2 140.7 high 127%
Upper North Coast (district 58)
Alstonville Tropical Fruit Research Stat 19.1 -0.1 25.5 30 Jul 10.9 +0.4 6.0 7 Aug 496.2 325.8 high 152%
Ballina Airport AWS 20.2   26.7 19 Aug 9.9   4.5 28 Aug 545.2
Byron Bay (Cape Byron AWS) 19.1   24.8 19 Aug 12.3   9.0 4 Jul 273.8
Casino Airport 20.8 -1.0 26.6 30 Jul 8.6 +1.3 2.8 7 Aug 105.8 165.8 average 64%
Casino Airport AWS 20.5   26.5 30 Jul 8.2   1.9 30 Jun 107.4
Evans Head RAAF Bombing Range AWS 19.9   28.6 19 Aug 10.8   5.6 30 Jun 407.2
Grafton Airport AWS 20.5   26.8 19 Aug 6.5   -1.2 30 Jun 143.4
Grafton Olympic Pool 21.3 +0.2 26.8 19 Aug 8.0 +0.8 1.0 30 Jun 154.5 144.3 average 107%
Grafton Research Stn 20.5   26.8 19 Aug 8.5   1.4 30 Jun 131.6 164.4 average 80%
Lismore (Richmond Hill) 20.1   26.6 30 Jul 10.0   4.4 30 Jun 267.4
Lismore Airport AWS 20.5   27.0 30 Jul 7.5   0.7 12 Jun 134.0
Murwillumbah (Bray Park) 20.9 -0.7 27.1 19 Aug 9.3 +0.3 3.8 12 Jun 171.1 214.0 average 80%
Yamba Pilot Station 19.8 +0.2 27.2 19 Aug 10.8 +0.5 5.7 30 Jun 319.8 309.7 average 103%
Lower North Coast (district 59)
Coffs Harbour MO 19.3 0.0 25.6 19 Aug 9.1 +0.8 1.3 30 Jun 310.6 270.1 high 115%
Dorrigo (Old Coramba Rd) 14.4   20.2 31 Jul 5.3   -2.5 30 Jun 211.2
Kempsey (Wide Street) 19.7 -0.7 25.2 19 Aug 7.5 +1.2 1.8 22 Aug 162.7 224.9 average 72%
Kempsey Airport AWS 19.8   26.2 19 Aug 6.3   -2.0 30 Jun 141.8
South West Rocks (Smoky Cape Lighthouse) 19.6 +0.4 24.7 19 Aug 11.4 -0.3 6.9 3 Jul 327.0 292.0 high 112%
Manning (district 60)
Forster - Tuncurry Marine Rescue 18.3   24.0 19 Aug 9.9   5.8 30 Jun
Port Macquarie Airport AWS 18.9   27.0 19 Aug 7.6   1.0 30 Jun 302.4
Taree Airport AWS 18.5   24.8 19 Aug 8.1   0.4 30 Jun 249.0
Yarras (Mount Seaview) 18.3 -0.9 24.4 19 Aug 7.1 +1.0 -1.0 30 Jun 408.6 238.2 high 172%
Hunter (district 61)
Cessnock (Nulkaba) 18.1 -0.5 22.8 31 Aug     -1.2 30 Jun 160.6 126.1 average 127%
Cessnock Airport AWS 17.3   22.0 19 Aug 5.4   -1.4 30 Jun 160.0 119.4 high 134%
Cooranbong (Lake Macquarie AWS) 18.1   25.0 19 Aug 6.0   -2.8 30 Jun 225.0
Gosford (Narara Research Station) AWS 17.7 -0.4 24.9 19 Aug 6.2 +0.7 -1.5 30 Jun 304.8 280.1 average 109%
Jerrys Plains Post Office 17.7 -0.6 23.1 18 Aug 5.1 +0.6 -0.7 28 Jun 145.4 127.1 high 114%
Maitland Visitors Centre 18.2   23.3 19 Aug 6.7   -0.5 29 Jun 205.5
Mangrove Mountain AWS 15.5   22.1 19 Aug 6.0   0.2 22 Jul 112.6
Merriwa (Roscommon) 15.6   21.6 18 Aug 2.9   -4.6 28 Jun 122.4 110.4 average 111%
Murrurundi Gap AWS 12.3   17.6 18 Aug 5.1   -0.3 16 Jul 262.8
Murrurundi Post Office 15.3 -0.6 20.7 18 Aug 3.4 +0.9 -3.6 29 Jun 308.2 195.8 v high 157%
Nelson Bay (Nelson Head) 17.5 -0.8 23.5 19 Aug 11.3 +2.1 7.9 30 Jun 362.2 399.6 average 91%
Newcastle Nobbys Signal Station AWS 17.5 +0.1 22.7 19 Aug 10.2 +1.1 5.9 30 Jun 230.0 285.1 average 81%
Newcastle University 17.9   23.5 19 Aug     3.5 28 Jun 316.5
Paterson (Tocal AWS) 17.7 -0.5 23.4 19 Aug 7.4 +0.7 1.1 29 Jun 219.0 151.7 high 144%
Peats Ridge (Waratah Road) 16.0 -0.7 23.1 19 Aug 6.6 0.0 1.1 29 Jun 226.9 243.0 average 93%
Scone Airport AWS 16.6   22.0 18 Aug 3.9   -4.8 30 Jun 139.4
Singleton STP 17.3   22.0 31 Aug 4.9   -1.0 1 Jul 144.8
Williamtown RAAF 17.8 0.0 24.3 19 Aug 7.5 +0.5 -1.8 30 Jun 294.0 268.9 average 109%
Central Tablelands (North) (district 62)
Gulgong Post Office 14.9 -0.6 20.7 18 Aug 3.9 +0.7 -4.8 30 Jun 243.3 146.4 high 166%
Mudgee Airport AWS 14.1   19.9 18 Aug 2.4   -6.7 30 Jun 231.2
Nullo Mountain AWS 8.8   13.4 18 Aug 2.6   -3.4 29 Jun 291.8
Central Tablelands (South) (district 63)
Bathurst Agricultural Station 12.5 +0.4 17.2 19 Aug 1.4 +0.3 -6.7 30 Jun 227.4 142.5 high 160%
Bathurst Airport AWS 12.1   16.7 19 Aug 1.6   -5.7 30 Jun 195.0
Cowra Research Centre (Evans St) 14.0 +0.2 19.6 4 Jun 4.8 +0.5 -1.1 21 Jul 196.4 149.6 high 131%
Katoomba (Murri St) 10.8 +0.7 15.7 18 Aug 3.2 +0.1 -1.8 30 Jun 256.9 280.7 average 92%
Lithgow (Cooerwull) 10.8   15.8 19 Aug 1.6   -6.8 22 Jul 188.0 194.8 average 97%
Mount Boyce AWS 9.5   15.1 18 Aug 2.7   -3.0 29 Jun 152.8
Oberon (Springbank) 8.8 -0.7 12.8 19 Aug 0.8 +0.5 -5.6 28 Jun 320.2 225.8 high 142%
Orange Agricultural Institute 10.0 -0.3 16.2 2 Jun 2.0 0.0 -4.2 30 Jun 425.7 261.8 high 163%
Orange Airport AWS 9.6   14.0 4 Jun 1.3   -5.4 30 Jun 420.4
Orange Airport Comparison 10.0 -0.1 15.4 4 Jun 1.6 +0.4 -4.8 30 Jun 389.2 248.2 v high 157%
Springwood (Valley Heights) 16.0   22.7 19 Aug 7.0   0.0 30 Jun 156.8 188.9 average 83%
Central Western Slopes (North) (district 64)
Coonabarabran (Namoi Street) 15.0 -0.7 20.4 18 Aug 1.5 +0.7 -7.0 30 Jun 283.4 165.9 v high 171%
Coonabarabran Airport AWS 13.7   19.3 18 Aug 5.5   -0.5 28 Jun 238.0
Dunedoo Post Office 15.5 -0.7 21.6 18 Aug 3.9 +1.1 -4.5 30 Jun 175.3 132.6 high 132%
Central Western Slopes (South) (district 65)
Cowra Airport AWS 14.5   19.3 4 Jun 3.0   -2.5 13 Jun
Cowra Airport Comparison 14.4 -0.2 19.4 4 Jun 3.3 +0.7 -2.9 28 Jun 171.4 142.4 average 120%
Dubbo Airport AWS 15.4   20.7 9 Aug 4.0   -4.0 30 Jun 157.0
Forbes Airport AWS 14.7   20.0 3 Jun 3.0   -3.1 22 Jul 141.2
Parkes (Macarthur Street) 14.9 0.0 20.0 3 Jun 4.2 -0.5 -2.5 28 Jun 194.8 148.3 high 131%
Parkes Airport AWS 14.0   19.0 4 Jun 3.2   -4.0 22 Jul 220.2 145.1 v high 152%
Wellington (Agrowplow) 15.5 -0.5 20.7 18 Aug 3.7 +0.8 -4.3 30 Jun 209.8 149.5 high 140%
Metropolitan (East) (district 66)
Bankstown Airport AWS 17.6 -0.3 24.7 19 Aug 6.4 +0.5 -0.7 30 Jun 147.0 168.2 average 87%
Canterbury Racecourse AWS 17.6   24.5 19 Aug 6.6   -0.9 30 Jun 182.4
Holsworthy Control Range 17.6   24.1 19 Aug 5.9   -2.6 30 Jun 162.8
Parramatta North (Masons Drive) 17.7 -0.4 24.6 19 Aug 6.9 0.0 1.0 30 Jun 184.4 186.3 average 99%
Riverview Observatory 17.6 +0.2 24.4 19 Aug 8.0 +0.9 1.2 30 Jun 266.6 269.8 average 99%
Sydney (Observatory Hill) 17.7 +0.7 24.6 19 Aug 9.4 +0.7 4.3 30 Jun 288.8 309.8 average 93%
Sydney Airport AMO 17.5 -0.1 25.4 19 Aug 9.3 +1.4 3.2 30 Jun 209.8 266.5 average 79%
Sydney Harbour (Wedding Cake West) 16.9   24.2 19 Aug 10.6   5.0 30 Jun
Sydney Olympic Park (Sydney Olympic Pk A 18.0   25.0 19 Aug 8.6   2.0 30 Jun 179.2
Terrey Hills AWS 16.0   23.3 19 Aug 8.1   0.9 30 Jun 279.2
Metropolitan (West) (district 67)
Badgerys Creek AWS 17.4   23.4 19 Aug 5.5   -3.0 30 Jun 154.8
Horsley Park Equestrian Centre AWS 17.2   23.3 19 Aug 6.6   -1.8 30 Jun 147.6
Liverpool (Michael Wenden Centre) 18.0   24.4 19 Aug 5.5   -2.4 30 Jun 150.9
Penrith Lakes AWS 17.8   24.7 19 Aug 6.3   -1.1 30 Jun 131.2
Prospect Reservoir 17.3 -0.4 23.8 19 Aug 7.0 +0.2 -0.8 30 Jun 139.3 182.4 average 76%
Richmond RAAF 17.7   24.8 19 Aug 4.8   -4.8 30 Jun 108.8
Illawarra (district 68)
Albion Park (Wollongong Airport) 17.5   23.0 19 Aug 6.9   -0.9 28 Jun 187.2
Bellambi AWS 17.1   23.5 19 Aug 10.5   5.4 30 Jun 200.6
Bowral (Parry Drive) 11.9 -0.6 17.8 31 Aug 3.4 +0.7 -3.0 28 Jun 145.6 189.6 average 77%
Camden Airport AWS 17.6 -0.4 24.5 19 Aug 4.4 +0.7 -3.9 30 Jun 171.0 144.5 average 118%
Campbelltown (Mount Annan) 17.8   24.1 19 Aug 4.8   -3.0 30 Jun 159.2
Jervis Bay (Point Perpendicular AWS) 15.8   20.5 19 Aug 10.3   6.4 8 Aug 284.6
Kiama (Bombo Headland) 17.0   23.5 19 Aug 10.5   6.6 30 Jun 249.8
Moss Vale AWS 12.2   17.8 31 Aug 2.5   -5.8 28 Jun
Nowra RAN Air Station AWS 16.6   23.1 31 Aug 6.7   1.5 18 Aug 183.4
South Coast (district 69)
Batemans Bay (Catalina Country Club) 16.7   21.4 19 Aug 3.9   -1.5 29 Jun 120.8 165.4 average 73%
Braidwood Racecourse AWS 12.1   15.9 20 Jun 0.8   -5.2 28 Jun 142.8
Green Cape AWS 15.7   20.7 19 Aug 9.4   5.9 29 Jun 109.6
Merimbula Airport AWS 16.7   23.0 19 Aug 4.6   0.0 1 Jul 57.6
Montague Island Lighthouse 15.8 -0.1 20.5 19 Aug 10.4 +0.1 5.6 14 Jun 183.0 202.1 average 91%
Moruya Airport AWS 17.0   22.0 19 Aug 4.5   -3.0 29 Jun 93.8
Moruya Heads Pilot Station 16.8 +0.1 21.0 19 Aug 7.1 +0.6 2.8 29 Jun 98.2 196.2 low 50%
Narooma Vmr 16.6 0.0 24.5 19 Aug 7.7 +0.4 4.0 29 Jun 107.3 188.8 average 57%
Nerriga Composite 12.6 0.0 17.0 31 Aug 0.5 -0.3 -6.7 28 Jun 127.7 189.2 low 67%
Ulladulla AWS 16.2   20.5 31 Aug 9.2   5.0 29 Jun 264.8
Southern Tablelands (Goulburn-Monaro) (district 70)
Bombala (Therry Street) 12.1 +0.4 17.3 31 Aug -0.9 -0.4 -6.8 21 Jul 70.6 145.4 low 49%
Bombala AWS 10.4   15.8 14 Aug -0.1   -5.4 21 Jul
Canberra Airport 12.7   16.1 2 Jun 0.7   -5.0 28 Jun 151.6
Canberra Airport Comparison 12.6 +0.4 16.3 2 Jun 1.0 +0.4 -4.8 28 Jun 127.6 127.9 average 100%
Cooma Airport AWS 10.1   15.5 31 Aug -1.8   -9.2 29 Jun 70.0 93.7 average 75%
Cooma Visitors Centre 11.5 -0.8 15.2 31 Aug -2.2 -0.2 -8.6 21 Jul 59.7 93.1 average 64%
Goulburn Airport AWS 11.9   16.2 31 Aug 0.8   -6.9 28 Jun 121.4
Goulburn TAFE 11.8 -0.6 16.7 30 Jul 2.1 +0.1 -4.7 28 Jun 140.0 145.0 average 97%
Mount Ginini AWS 2.9   7.2 5 Jun     -7.1 25 Aug 332.2
Taralga Post Office 11.5 +0.4 16.0 31 Aug 0.6 -0.6 -6.9 28 Jun 214.9 209.3 average 103%
Tidbinbilla Nature Reserve 12.0 +0.2 15.5 4 Jun 0.9 -0.1 -5.5 29 Jun 253.4 243.2 average 104%
Tuggeranong (Isabella Plains) AWS 12.8   16.8 4 Jun 0.7   -6.7 29 Jun 125.2
Yass (Linton Hostel) 12.8 +0.3 17.3 4 Jun 1.7 0.0 -4.6 28 Jun 206.6 177.0 average 117%
Southern Tablelands (Snowy Mountains) (district 71)
Charlotte Pass (Kosciusko Chalet) 2.8 +0.1 9.5 4 Jun -6.1 -0.3 -19.6 20 Jul 325.3 591.0 low 55%
Perisher Valley AWS 3.4   9.8 4 Jun -4.8   -11.4 20 Jul 668.4
Thredbo AWS 0.4 -0.3 6.5 4 Jun -5.1 -0.4 -10.4 7 Aug 297.2 323.8 average 92%
Thredbo Village 5.6 -0.6 10.0 4 Jun -3.7 -0.8 -11.5 6 Aug 774.1 513.0 high 151%
Southwest Slopes (South) (district 72)
Albury Airport AWS 13.4   18.4 4 Jun 3.0   -2.0 14 Jun 193.8
Cabramurra SMHEA AWS 4.1   9.7 4 Jun -1.0   -5.0 29 Jun 385.2
Hume Reservoir 13.4 +0.3 18.7 4 Jun 4.5 0.0 0.2 14 Jun 216.8 220.8 average 98%
Khancoban AWS 11.9   16.6 10 Aug 1.5   -4.0 14 Jun 324.4
Tumbarumba Post Office 10.9 -0.6 16.5 4 Jun 0.1 -0.2 -5.0 13 Jun 348.2 314.9 average 111%
Wagga Wagga AMO 13.4 -0.2 19.0 4 Jun 3.3 0.0 -3.2 22 Jul 207.2 155.4 high 133%
Southwest Slopes (North) (district 73)
Burrinjuck Dam 12.9 +0.5 18.2 3 Jun 3.9 +0.3 0.1 22 Jul 366.7 297.4 high 123%
Cootamundra Airport 13.4   18.5 4 Jun 1.4   -5.0 13 Jun 205.3
Gundagai (William St) 13.3   18.8 3 Jun 2.8   -3.4 28 Jun 216.8
Quandialla Post Office 14.4 -0.8 19.0 25 Jun 4.1 +0.6 -1.8 28 Jun 164.5 127.2 high 129%
Temora Airport 13.4   18.6 25 Jun 2.6   -2.9 21 Jul 143.6
Wyalong Post Office 14.2 -0.7 19.5 25 Jun 4.1 +0.4 -0.6 28 Jun 154.0 123.4 high 125%
Young Airport 13.2   17.6 4 Jun 1.6   -4.7 28 Jun 186.8
Riverina (East) (district 74)
Corowa Airport 13.7 -0.3 18.1 4 Jun 3.4 0.0 -2.0 14 Jun 167.0 164.3 average 102%
Deniliquin Airport AWS 13.7   18.2 1 Jun 3.9   -2.2 27 Jul 108.4
Narrandera Airport 14.1   19.2 25 Jun 3.6   -2.0 28 Jun 84.8 114.0 low 74%
Narrandera Golf Club 14.0 -1.0 18.6 25 Jun 3.9 0.0 -1.5 17 Aug 99.0 124.8 low 79%
Tocumwal Airport 13.7 -1.2 18.4 3 Jun 3.6 -0.4 -1.7 27 Jul 133.7 129.2 average 103%
Yanco Agricultural Institute 13.9   19.0 4 Jun 5.0   -0.3 13 Jun 84.0
Riverina (West) (district 75)
Griffith Airport AWS 14.5 -1.0 20.3 16 Jun 4.4 +0.4 -0.9 20 Jul 108.0 103.2 average 105%
Hay (Miller Street) 14.9 -1.1 19.6 2 Jun 4.3 +0.1 -1.2 8 Jul 104.9 99.1 average 106%
Hay Airport AWS 14.9   20.0 1 Jun 3.7   -1.7 8 Jul 80.6
Hillston Airport 15.5 -0.4 21.6 25 Jun 4.3 -0.3 -1.5 8 Jul 130.4 97.2 high 134%
Lake Cargelligo Airport 15.0 -1.4 21.8 25 Jun     -0.6 28 Jun 116.6 105.2 average 111%

Notes

A Seasonal 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 10 am 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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