New South Wales in winter 2018: Very dry with warm days and cool nights

Winter 2018 rainfall across New South Wales was 54% below average, the eighth lowest on record. Daytime temperatures were the fifth warmest on record across the State. The clear skies and dry conditions resulted in cool overnight temperatures, with areas in the Western districts the lowest on record.

Very dry conditions

  • The total rainfall for New South Wales as a whole for winter 2018 was 53.1 mm, 54% below average
  • Rainfall was very much below average over much of the state, with parts of the Western districts receiving their lowest winter rainfall on record
  • A number of sites had their lowest total winter rainfall on record or their lowest total winter rainfall for at least 20 years
  • Parts of the Darling and North Coast regions recorded near-average rainfall across winter
  • Widespread two day totals of 25-50 mm were recorded in the Darling region in late June, with Brewarrina, east of Bourke recording 67 mm on the 27 and 28 June
  • A low pressure system and associated trough brought widespread rainfall totals in excess of 10 mm throughout central and northern New South Wales on 26 August
  • The localised falls did not significantly change the long-term rainfall deficiencies, with the State recording the driest January to August period since 1965
  • Pan evaporation across the State was at its highest level in winter since the Millennium Drought in 2002 and 2003
  • Soil moisture content for July was the lowest on record in parts of the Northwest Slopes

Warm days and cool nights

  • Daytime temperatures for New South Wales for winter 2018 were 1.42 °C above average, the fifth highest on record
  • Almost all of the State experienced above average to very much above average daytime temperatures, with only the Southwest Slopes reporting near-average daytime temperatures
  • The last season with state-wide below average daytime temperatures was spring 2016
  • Some sites in the Northwest Slopes and Northern Tablelands had their highest winter mean daily maximum temperature on record
  • Night time temperatures for New South Wales for winter 2018 were 0.17 °C below average, somewhat warmer than in winter 2017. In contrast winter 2016 was the warmest on record for the State
  • The clear skies and dry conditions resulted in most of the State west of the Dividing Range, and the northeast, experiencing below average night time temperatures. Parts of the northwest of the State had their lowest night time temperatures on record
  • On 15 July, minimum temperatures were more than 8 °C cooler than average in some areas, dropping below zero across most of the State and resulting in widespread frosts. Some sites in the Central Tablelands and Western Sydney had their lowest winter temperature on record
  • The -14.2 °C at Perisher Valley AWS on 29 August is the coldest temperature recorded in Australia since 2011

Snow, wind, dust and fire

  • The snow depth at Spencers Creek reached 224.6 cm on August 22. The maximum snow depth in 2017 was 240.9 cm on September 20
  • The strongest wind gust in the State was 141 km/h at Thredbo AWS on 8 June. This was the strongest gust at the site since 146 km/h was recorded on 3 September 2017
  • Windy conditions inland during August led to raised dust throughout the State
  • Bushfires occurred in August along the East Coast and in parts of the Tablelands and Slopes and Plains districts

Further information

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Extremes in winter 2018
Hottest day 30.3 °C at Casino Airport AWS on 15 Aug
Warmest days on average 23.0 °C at Casino Airport AWS
Coolest days on average 2.5 °C at Mount Ginini AWS
Coldest day -4.7 °C at Thredbo AWS on 19 Aug
Coldest night -14.2 °C at Perisher Valley AWS on 29 Aug
Coolest nights on average -4.1 °C at Perisher Valley AWS
Warmest nights on average 13.0 °C at Byron Bay (Cape Byron AWS)
Warmest night 18.4 °C at Byron Bay (Cape Byron AWS) on 6 Jul
Warmest on average overall 16.4 °C at Byron Bay (Cape Byron AWS)
Coolest on average overall -0.6 °C at Perisher Valley AWS
Wettest overall 563.4 mm at Perisher Valley AWS
Driest overall 3.2 mm at Borrona Downs AWS
Wettest day 106.0 mm at Minnie Water (Pump Shed) on 7 Jun
Strongest wind gust 141 km/h at Thredbo AWS on 8 Jun

Maps
ObservedAnomalyDecile rank
Total
rainfall
Map of Rainfall totals Map of Percentage of normal rainfall Map of Rainfall deciles
Mean
daily
maximum
temperatures
Map of Mean maximum temperature Map of Anomaly in mean maximum temperature Map of Decile rank of mean maximum temperature
Mean
daily
minimum
temperatures
Map of Mean minimum temperature Map of Anomaly in mean minimum temperature Map of Decile rank of mean minimum temperature

Click on a map to show it full size in a pop-up window


Record lowest winter total rainfall
New record
(mm)
Old
record
Years of
record
Average for
winter
Torrens (Darke St) 60.6 67.8 in 1994 35 152.0
Cootamundra Airport 86.5 93.2 in 2006 22 168.1
Gundagai (Nangus Rd) 101.2 106.9 in 2007 22 178.0
Tuggeranong (Isabella Plains) AWS 54.6 72.0 in 2017 22 141.0

Lowest winter total rainfall for at least 20 years
Observed
(mm)
Most recent
lower
Average for
winter
Berridale (Bolton Street) 39.2 19.1 in 1948* 101.9
Wentworth (Burtundy) 27.2 24.5 in 1902* 74.4
Cassilis (Dalkeith) 37.4 26.0 in 1970* 131.2
Goulburn TAFE 66.4 34.9 in 1982 146.4
Pooncarie Mail Agency 21.0 12.2 in 1982 70.2
Scone SCS 42.9 33.0 in 1982 119.8
Wagga Wagga AMO 75.4 25.8 in 1982 155.9
Yanco Agricultural Institute 43.8 26.5 in 1982 104.0
Murrurundi (Haydon Street) 57.5 53.9 in 1982* 193.0
Belfrayden (North Mayfield) 52.6 24.6 in 1982* 126.9
Ganmain (Rosedale) 63.6 27.0 in 1982* 133.8
Tarcutta (Wollumbi) 108.6 107.4 in 1979* 188.4
Wanaaring Post Office 3.8 1.0 in 1982* 52.5
Coleambally Irrigation 38.8 36.9 in 1982* 107.7
Lower Boro (Calderwood) 42.0 32.8 in 1982* 135.4
Nerriga Composite 46.0 43.8 in 1980* 188.6
Tumut (Simpson Street) 117.8 51.4 in 1982* 253.7
Coolah (Binnia St) 21.6 20.4 in 1982* 146.8
Gunning Rural Supplies 85.0 48.0 in 1982* 168.3
Wentworth (Wamberra Station) 23.0 17.5 in 1944* 71.3
Pine Ridge (Billabong) 34.2 25.0 in 1982* 110.9
Canberra (Australian National Botanic Ga 63.3 56.5 in 1994 153.1
Canberra Parliament House 61.6 34.2 in 1982* 132.4
Collarenebri (Bundabarina) 15.6 5.6 in 1994 89.3
Cooma Visitors Centre 36.5 28.3 in 1994 94.8
Fairlight Station 113.7 104.4 in 1994 219.5
Goulburn Airport AWS 48.0 33.0 in 1994 130.8
Broken Hill Airport AWS 12.8 3.0 in 1994* 51.0
Bungonia (Inverary Park) 48.2 41.4 in 1995 146.9
Kangiara (Laverstock) 108.9 71.0 in 1982* 194.9
Rowena Post Office 17.2 8.8 in 1994* 96.7
Weetaliba (Munna) 40.6 36.0 in 1995 124.5
Collarenebri (Albert St) 19.2 6.6 in 1994* 94.2
Merriwa (Roscommon) 44.0 36.7 in 1995* 109.3
Narrandera Airport AWS 63.6 45.2 in 1994* 114.6
Springwood (Valley Heights) 42.0 9.6 in 1995* 186.3
Tamworth Airport AWS 49.8 33.0 in 1997 134.6
Woolbrook (Danglemah Road) 56.7 43.4 in 1997 149.7
Armidale Airport AWS 83.6 56.0 in 1997* 136.6
Binnaway (Wattle St) 41.4 35.6 in 1995* 124.1
Darkes Forest (Kintyre) 108.0 85.6 in 1995* 332.5
Lake Cargelligo Airport 49.6 41.4 in 1994* 105.1
Nundle (Chaffey Dam) 55.6 54.5 in 1997* 161.3
Tweed Heads Golf Club 160.4 151.2 in 1995* 293.4
Weabonga (Stoneleigh) 65.0 46.6 in 1997* 182.1

* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported




Record highest winter mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Wellington (D&J Rural) 18.0 = 18.0 in 1940 98 16.1
Gunnedah Resource Centre 19.1 18.8 in 2002 65 17.0
Barraba Post Office 19.1 18.9 in 2009 52 17.0
Bankstown Airport AWS 19.3 = 19.3 in 2013 48 18.0
Tabulam (Muirne) 18.8 18.6 in 2017 46 17.1
Glen Innes Ag Research Stn 14.9 = 14.9 in 2002 44 13.3
Tamworth Airport AWS 18.7 18.5 in 2009 26 17.2
Grafton Research Stn 22.4 22.2 in 2004 24 20.9
Casino Airport AWS 23.0 22.9 in 2017 23 21.3
Moree Aero 20.7 = 20.7 in 2017 23 19.2
Armidale (Tree Group Nursery) 14.8 14.7 in 2002 21 13.8

Highest winter mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
winter
Coonabarabran (Showgrounds) 17.6 18.1 in 1897* 15.8
Quirindi Post Office 18.6 18.7 in 1910* 16.8
Tenterfield (Federation Park) 16.9 17.4 in 1993 15.2

* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported




Record lowest winter temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Orange Agricultural Institute -5.8 on 15 Jul -5.6 on 13 Jul 2000 43 2.1
Bathurst Airport AWS -8.1 on 15 Jul -7.7 on 22 Jul 2017 27 1.3
Cooma Airport AWS -11.0 on 30 Aug = -11.0 on 16 Jun 1992 27 -1.6
Wanaaring Post Office -4.3 on 15 Jul -3.9 on 14 Jul 1997 27 5.0
Mangrove Mountain AWS -0.8 on 30 Aug -0.5 on 26 Jun 2016 25 6.6
Canterbury Racecourse AWS -1.6 on 16 Jul = -1.6 on 3 Jul 2002 23 6.5
Penrith Lakes AWS -1.8 on 16 Jul -1.4 on 12 Jul 2002 23 6.2
Coonamble Airport AWS -3.9 on 15 Jul = -3.9 on 16 Jul 2007 21 4.2
Newcastle University 1.0 on 22 Jul 1.2 on 12 Jul 2002 21 8.0
Parkes Airport AWS -6.6 on 15 Jul -6.0 on 4 Aug 1999 21 2.9



Record lowest winter mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Wanaaring Post Office 2.7 3.5 in 1997 26 5.0
Walgett Airport AWS 2.9 = 2.9 in 2002 25 4.4
Casino Airport AWS 5.4 5.6 in 2002 23 7.4
Canterbury Racecourse AWS 5.6 = 5.6 in 2004 22 6.5
Lightning Ridge Visitor Information Cent 4.8 5.0 in 1997 20 6.0

Lowest winter mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
winter
Burrinjuck Dam 2.6 2.2 in 1971* 3.6
Corowa Airport 1.4 =1.4 in 1982* 3.4
Murwillumbah (Bray Park) 8.1 7.2 in 1982* 9.1
Barraba Post Office -0.8 =-0.8 in 1994 1.0
Brewarrina Hospital 4.3 4.1 in 1994 5.2

* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported




Record lowest winter mean temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Port Macquarie Airport AWS 12.8 = 12.8 in 2004 22 13.3
Cabramurra SMHEA AWS 1.4 = 1.4 in 2004 21 2.2



Summary statistics for winter 2018
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
winter
2018
Diff
from
average
Highest for
winter
2018
Mean for
winter
2018
Diff
from
average
Lowest for
winter
2018
Total for
winter
2018
Average
for
winter
Rank of
winter
2018
Fraction of
winter
average
Western (Far Northwest) (district 46)
Fowlers Gap AWS 18.7 +0.8 25.5 30 Aug 4.0 -1.2 -3.6 15 Jul 7.0 47.3 v low 15%
Smithville AWS 19.9   27.7 30 Aug 4.5   -3.6 19 Jun 10.2
Tibooburra Airport 19.7 +0.5 28.3 30 Aug 6.8 -0.4 1.4 19 Jun 12.4 35.2 low 35%
White Cliffs AWS 19.2 +0.8 25.3 5 Aug 5.8 -0.6 -0.9 11 Jul 4.0 50.3 v low 8%
Wilcannia Aerodrome AWS 19.2 +0.7 25.5 15 Aug 3.7 -1.0 -3.4 15 Jul 8.6 63.4 v low 14%
Western (Lower Darling) (district 47)
Broken Hill Airport AWS 17.3 +0.9 24.0 29 Aug 4.9 -0.4 -2.5 19 Jun 12.8 51.0 v low 25%
Lake Victoria Storage 17.0 +0.9 22.0 10 Aug 5.1 -0.6 -2.0 23 Jun 63.2 70.2 average 90%
Menindee Post Office 18.9 +1.0 25.7 15 Aug 4.4 -0.4 -3.0 16 Jul 20.6 57.7 low 36%
Mulurulu AWS 17.6   23.9 5 Jul 3.6   -4.0 14 Jul 12.0
Pooncarie Mail Agency 18.2 +0.3 24.2 5 Jul 4.5 -0.5 -3.7 14 Jul 21.0 70.2 v low 30%
Western (Upper Darling) (district 48)
Bourke Airport AWS 20.0 +0.5 27.7 28 Jul 4.1 -1.0 -2.8 15 Jul 50.6 59.2 average 85%
Brewarrina Hospital 20.2 +1.0 25.6 28 Jul 4.3 -0.9 -1.8 15 Jul 79.7 83.0 average 96%
Cobar Airport AWS 18.3 +1.0 25.2 28 Jul 2.7 -1.3 -4.1 14 Jul 17.8 75.8 v low 23%
Cobar MO 18.3 +1.5 25.3 28 Jul 5.4 -0.4 -0.1 15 Jul 21.0 83.6 v low 25%
Lightning Ridge Visitor Information Cent 20.6 +0.5 26.7 11 Aug 4.8 -1.2 -2.7 15 Jul 69.2 97.8 average 71%
Noona AWS 18.2   25.5 28 Jul 5.7   -0.6 15 Jul 24.0
Wanaaring (Delta AWS) 19.7   27.6 28 Jul 3.3   -4.3 15 Jul 24.6
Wanaaring Post Office 20.7 +0.9 27.8 5 Aug 2.7 -2.3 -4.3 15 Jul 3.8 52.5 v low 7%
Western (Southwest Plains) (district 49)
Balranald (RSL) 16.9 +0.5 23.0 5 Jul 4.3 +0.1 -2.4 23 Jun 35.6 85.2 low 42%
Euabalong (Mount Hope AWS) 17.2   23.4 5 Jul 1.9   -4.7 25 Jun 39.2
Ivanhoe Aerodrome AWS 17.9 +0.5 25.0 15 Aug 5.1 -0.5 -0.3 14 Jul 29.0 64.5 low 45%
Central Western Plains (South) (district 50)
Condobolin Ag Research Stn 17.0 +1.1 23.1 15 Aug 2.5 -0.9 -4.5 15 Jul 36.6 101.5 v low 36%
Condobolin Airport AWS 17.4 +1.2 23.8 15 Aug 2.5 -0.8 -4.5 15 Jul 35.4 101.8 low 35%
Peak Hill Post Office 17.5 +1.3 23.1 5 Jul 5.0 -0.6 -3.0 15 Jul 51.8 130.0 v low 40%
West Wyalong Airport AWS 15.8 +0.7 21.9 25 Aug 2.7 -0.7 -4.3 23 Jul 59.8 122.7 low 49%
Central Western Plains (North) (district 51)
Coonamble Airport AWS 19.4 +1.4 25.7 11 Aug 3.4 -0.8 -3.9 15 Jul 25.8 107.7 v low 24%
Nyngan (Girilambone (Okeh) AWS) 18.8   23.8 15 Aug 4.2   -2.6 16 Jul 53.6
Trangie Research Station AWS 18.3 +2.0 23.4 5 Jul 4.0 +0.1 -3.3 15 Jul 51.8 102.8 low 50%
Walgett (Brewon AWS) 19.9   25.8 28 Jul 3.3   -3.9 15 Jul 47.6
Northwest Plains (West) (district 52)
Walgett Airport AWS 20.6 +1.1 26.6 11 Aug 2.9 -1.5 -4.9 16 Jul 32.2 82.0 low 39%
Northwest Plains (East) (district 53)
Moree Aero 20.7 +1.5 26.7 28 Jul 4.9 -0.3 -1.8 14 Jul 53.4 100.9 low 53%
Northwest Slopes (North) (district 54)
Barraba Post Office 19.1 +2.1 25.1 25 Jul -0.8 -1.8 -7.7 16 Jul 65.1 129.6 low 50%
Narrabri Airport AWS 20.3 +1.6 26.5 28 Jul 3.4 -1.5 -4.4 14 Jul 46.6 115.0 low 41%
Northwest Slopes (South) (district 55)
Gunnedah Airport AWS 19.7 +1.6 25.6 31 Aug 1.5 -1.3 -6.6 15 Jul 41.8 104.0 v low 40%
Gunnedah Resource Centre 19.1 +2.1 24.7 31 Aug 5.3 -0.3 -1.7 14 Jul 35.8 117.3 v low 31%
Quirindi Post Office 18.6 +1.8 24.6 5 Jul 1.7 -0.6 -4.0 16 Jul 44.6 143.4 v low 31%
Tamworth Airport AWS 18.7 +1.5 24.2 31 Aug 2.0 -0.9 -5.7 16 Jul 49.8 134.6 v low 37%
Woolbrook (Danglemah Road) 14.5 +1.0 20.0 31 Aug -0.9 -0.3 -9.5 16 Jul 56.7 149.7 v low 38%
Northern Tablelands (West) (district 56)
Armidale (Tree Group Nursery) 14.8 +1.0 20.6 14 Aug -1.1 -1.2 -10.1 15 Jul 81.4 126.2 low 65%
Armidale Airport AWS 13.7 +0.8 19.6 31 Aug 1.4 -0.4 -5.1 13 Aug 83.6 136.6 v low 61%
Glen Innes Ag Research Stn 14.9 +1.6 21.0 14 Aug 0.7 -0.6 -6.0 15 Jul 110.0 157.4 low 70%
Glen Innes Airport AWS 15.0 +1.0 21.0 14 Aug -2.0 -1.5 -9.7 16 Jul 123.6 152.5 average 81%
Guyra Hospital 12.3 +1.0 18.6 14 Aug 1.1 -0.2 -5.0 21 Jul 104.0 162.1 low 64%
Inverell (Raglan St) 18.1 +0.7 23.2 28 Jul     -5.2 15 Jul 113.4 128.4 average 88%
Inverell Research Centre 17.5 +1.6 23.0 28 Jul 3.7 -0.6 -4.3 15 Jul 115.2 137.8 average 84%
Tenterfield (Federation Park) 16.9 +1.7 24.3 30 Aug -1.1 -2.8 -7.8 15 Jul 76.4 147.1 low 52%
Northern Tablelands (East) (district 57)
Tabulam (Muirne) 18.8 +1.7 25.7 15 Aug 8.1 +0.3 2.6 14 Jul 60.4 142.7 low 42%
Upper North Coast (district 58)
Ballina Airport AWS 21.2 +0.7 26.6 29 Jul 8.5 -0.6 1.7 21 Aug 228.6 394.0 low 58%
Byron Bay (Cape Byron AWS) 19.8 +0.4 25.5 16 Aug 13.0 +0.2 9.0 20 Aug 199.6 333.1 v low 60%
Casino Airport AWS 23.0 +1.7 30.3 15 Aug 5.4 -2.0 -0.8 15 Aug 47.4 152.9 v low 31%
Evans Head RAAF Bombing Range AWS 21.3 +1.0 29.6 6 Aug 10.5 -0.3 4.4 21 Aug 213.8 337.4 low 63%
Grafton Airport AWS 21.8 +0.7 29.0 15 Aug 4.8 -1.4 -2.8 21 Aug 131.4 185.5 average 71%
Grafton Research Stn 22.4 +1.5 30.2 15 Aug 7.0 -0.4 0.1 21 Aug 112.8 165.1 average 68%
Lismore Airport AWS 22.5 +1.1 29.7 16 Aug 5.3 -1.7 -0.7 21 Aug 57.8 192.1 v low 30%
Murwillumbah (Bray Park) 22.7 +1.1 28.7 16 Aug 8.1 -1.0 0.3 22 Aug 116.4 220.9 low 53%
Yamba Pilot Station 20.9 +1.3 25.9 16 Aug 10.4 0.0 5.7 21 Aug 323.6 313.9 average 103%
Lower North Coast (district 59)
Coffs Harbour Airport 20.4   27.3 29 Jul 7.6   0.2 21 Aug 172.0
Dorrigo (Old Coramba Rd) 15.9 +0.7 25.0 15 Aug 4.3 -0.6 -2.0 15 Jul 116.2 288.9 low 40%
Kempsey Airport AWS 20.8 +0.2 28.7 15 Aug 4.5 -1.2 -4.2 21 Aug 105.4 186.1 average 57%
South West Rocks (Smoky Cape Lighthouse) 20.5 +1.2 25.4 16 Aug 12.5 +0.7 8.3 13 Aug 275.0 295.7 average 93%
Manning (district 60)
Forster - Tuncurry Marine Rescue 18.9 0.0 24.8 7 Jul 8.4 -0.9 3.5 8 Aug 226.6 276.9 average 82%
Port Macquarie Airport AWS 19.8 +0.3 25.9 15 Aug 5.7 -1.5 -2.4 21 Aug 195.6 271.4 average 72%
Taree Airport AWS 19.4 +0.2 27.0 15 Aug 5.9 -1.4 -2.0 21 Aug 114.3 209.4 low 55%
Yarras (Mount Seaview) 19.8 +0.5 27.3 15 Aug 5.5 -0.7 -3.8 15 Jul 352.6 251.5 high 140%
Hunter (district 61)
Cessnock Airport AWS 19.1 +0.9 25.5 16 Aug 4.0 -0.9 -4.9 15 Jul 72.2 119.6 average 60%
Cooranbong (Lake Macquarie AWS) 19.3   25.2 6 Jul 4.3   -3.4 16 Jul 138.0 198.1 average 70%
Gosford AWS 18.5   25.0 6 Jul 6.7   0.9 22 Jul 243.2
Maitland Airport AWS 19.0   26.2 16 Aug 5.8   -2.7 22 Jul 94.2
Mangrove Mountain AWS 17.3 +1.0 23.1 11 Aug 5.9 -0.7 -0.8 30 Aug 122.0 208.3 average 59%
Merriwa (Roscommon) 17.6 +0.9 24.7 5 Jul 2.0 -1.0 -5.5 16 Jul 44.0 109.3 low 40%
Murrurundi Gap AWS 14.1 +0.9 20.2 5 Jul 5.4 -0.1 1.1 8 Jul 45.4 158.4 v low 29%
Nelson Bay (Nelson Head) 18.1 -0.1 23.6 15 Aug 10.7 +1.0 6.7 15 Jul 418.3 398.1 average 105%
Newcastle Nobbys Signal Station AWS 18.6 +1.2 24.4 16 Aug 9.7 +0.5 4.6 22 Jul 317.6 282.9 average 112%
Newcastle University 18.8 +0.1 25.2 11 Aug 7.4 -0.6 1.0 22 Jul 197.7 247.2 average 80%
Norah Head AWS 18.8 +0.7 24.2 15 Aug 10.1 -0.4 5.1 15 Jul 403.2 305.9 high 132%
Paterson (Tocal AWS) 18.8 +0.6 25.8 16 Aug 6.4 -0.4 -0.9 15 Jul 153.2 155.4 average 99%
Scone Airport AWS 18.6 +1.2 25.1 5 Jul 3.5 -0.4 -4.3 15 Jul 41.4 121.4 low 34%
Singleton (Defence) 18.9   25.8 16 Aug 6.8   0.6 16 Jul 57.8
Singleton STP 19.3 +0.7 26.1 5 Jul 6.1 +1.4 -1.7 22 Jul 55.4 118.9 low 47%
Williamtown RAAF 18.8 +0.9 25.2 11 Aug 6.6 -0.5 -0.9 16 Jul 263.0 268.1 average 98%
Central Tablelands (North) (district 62)
Gulgong Post Office 16.6 +1.0 22.8 5 Jul 2.8 -0.4 -5.5 15 Jul 85.4 144.7 low 59%
Mudgee Airport AWS 15.8 +0.6 21.7 5 Jul 0.7 -1.0 -7.4 15 Jul 91.6 125.2 low 73%
Nullo Mountain AWS 10.2 +0.3 16.0 28 Jul     -2.3 20 Aug 95.6 192.9 low 50%
Central Tablelands (South) (district 63)
Bathurst Agricultural Station 13.3 +1.1 19.0 11 Aug 0.1 -1.0 -7.5 15 Jul 87.4 142.3 low 61%
Bathurst Airport AWS 13.2 +0.4 19.6 11 Aug 0.3 -1.0 -8.1 15 Jul 71.4 121.4 low 59%
Lithgow (Cooerwull) 11.8 +0.3 17.6 5 Jul 1.3 -0.2 -9.3 15 Jul 77.0 191.4 low 40%
Marrangaroo (Defence) 12.1   17.8 11 Aug -0.5   -11.1 15 Jul 83.2
Mount Boyce AWS 10.6 +0.3 17.3 10 Aug 2.8 -0.3 -2.6 15 Jul 85.4 174.0 low 49%
Orange Airport AWS 10.9 +0.3 16.2 5 Jul 0.2 -0.7 -7.2 15 Jul 123.6 235.7 low 52%
Springwood (Valley Heights) 17.2 +0.6 24.2 11 Aug 7.3 +0.2 1.6 15 Jul 42.0 186.3 v low 23%
Central Western Slopes (North) (district 64)
Coonabarabran (Showgrounds) 17.6 +1.8 22.1 11 Aug -0.1 -0.9 -7.5 16 Jul 51.4 163.4 v low 31%
Coonabarabran Airport AWS 16.0 +1.1 21.3 24 Jul 5.8 0.0 1.1 20 Aug 44.8 128.1 v low 35%
Dunedoo Post Office 17.5 +1.3 23.7 5 Jul 2.5 -0.4 -5.6 15 Jul 75.4 130.7 low 58%
Central Western Slopes (South) (district 65)
Cowra Airport AWS 15.4 +0.4 22.2 3 Aug 1.6 -1.2 -5.8 15 Jul 55.6 134.7 v low 41%
Dubbo Airport AWS 17.6 +1.2 23.0 11 Aug 2.6 -1.0 -6.0 15 Jul 56.6 127.0 low 45%
Forbes Airport AWS 16.5 +1.0 22.6 15 Aug 1.6 -1.4 -6.4 16 Jul 37.2 123.5 v low 30%
Parkes Airport AWS 16.1 +1.0 22.1 5 Jul 1.3 -1.6 -6.6 15 Jul 48.2 144.2 v low 33%
Wellington (D&J Rural) 18.0 +1.9 24.0 27 Jul 1.4 -1.5 -5.5 14 Jul 66.0 149.1 v low 44%
Metropolitan (East) (district 66)
Bankstown Airport AWS 19.3 +1.3 26.3 11 Aug 5.4 -0.6 -1.4 16 Jul 85.0 174.0 low 49%
Canterbury Racecourse AWS 18.7 +0.5 25.5 11 Aug 5.6 -0.9 -1.6 16 Jul 124.0 227.9 low 54%
Holsworthy Aerodrome AWS 18.4   25.8 11 Aug 5.5   -1.8 16 Jul 92.4
Parramatta North (Masons Drive) 19.0 +0.9 25.6 11 Aug 6.5 -0.5 0.0 16 Jul 84.6 193.4 low 44%
Sydney (Observatory Hill Comparison) 19.0   25.0 11 Aug 9.1   4.0 16 Jul 193.2
Sydney (Observatory Hill) 18.9 +1.8 25.6 11 Aug 9.2 +0.4 4.6 16 Jul
Sydney Airport AMO 19.1 +1.4 26.6 11 Aug 8.9 +0.8 4.2 16 Jul 183.4 269.6 average 68%
Sydney Harbour (Wedding Cake West) 17.7 +0.1 24.9 15 Aug 10.6 -0.5 6.1 16 Jul
Sydney Olympic Park AWS (Archery Centre) 19.1   25.5 11 Aug 6.2   -0.9 16 Jul 115.2
Terrey Hills AWS 17.2 +0.4 23.9 15 Aug 8.0 -0.3 1.3 16 Jul 98.8 250.6 v low 39%
Metropolitan (West) (district 67)
Badgerys Creek AWS 18.7 +0.6 26.5 11 Aug 4.4 -0.4 -3.6 16 Jul 60.0 119.4 average 50%
Horsley Park Equestrian Centre AWS 18.6 +0.6 25.6 11 Aug 5.8 -0.7 -1.7 16 Jul 54.6 149.1 low 37%
Penrith Lakes AWS 19.5 +0.9 26.4 11 Aug 5.4 -0.8 -1.8 16 Jul 39.8 106.1 v low 38%
Richmond RAAF 19.6 +1.2 26.6 11 Aug 3.8 -0.6 -4.3 15 Jul 50.4 116.0 low 43%
Illawarra (district 68)
Albion Park (Wollongong Airport) 18.4 +0.2 26.9 11 Aug 6.0 -0.6 -1.7 23 Jul 103.2 196.2 low 53%
Bellambi AWS 17.8 +0.3 25.6 15 Aug 10.1 -0.5 5.3 29 Aug 149.8 293.6 low 51%
Camden Airport AWS 18.8 +0.8 26.7 11 Aug 3.4 -0.4 -4.9 16 Jul 56.0 146.8 low 38%
Campbelltown (Mount Annan) 18.7 +0.6 26.3 11 Aug 4.1 -0.7 -3.7 16 Jul 69.0 162.8 v low 42%
High Range AWS (Wanganderry) 11.7   19.5 11 Aug 4.2   -1.5 29 Aug 69.0
Holsworthy (Defence) 18.1   26.0 11 Aug 5.5   -0.4 23 Jul 154.6
Jervis Bay (Point Perpendicular) 16.5 0.0 23.3 6 Jul 10.2 -0.2 6.5 25 Jun 318.6 330.8 average 96%
Kiama (Bombo Headland) 17.7 +0.1 25.6 6 Jul 10.2 -0.5 6.0 23 Jul 229.4 245.7 average 93%
Moss Vale AWS 12.5 -0.1 19.7 11 Aug 2.7 -0.2 -5.4 22 Jul 93.2 181.5 low 51%
Nowra RAN Air Station AWS 17.7 +0.5 25.4 11 Aug 6.6 -0.4 0.7 23 Jul 78.4 240.1 low 33%
South Coast (district 69)
Bega AWS 17.7 +0.7 24.6 11 Aug 2.5 -0.5 -3.8 11 Jul 96.0 138.4 average 69%
Braidwood Racecourse AWS 13.0 +0.3 19.5 3 Aug 0.8 +0.3 -8.3 22 Jul 53.6 142.2 low 38%
Green Cape AWS 15.8 -0.2 23.0 15 Aug 9.3 -0.4 5.6 28 Aug 135.6 138.2 average 98%
Merimbula Airport AWS 17.2 +0.3 24.1 15 Aug 4.3 -0.6 -0.7 10 Aug 96.0 166.8 average 58%
Montague Island Lighthouse 16.6 +0.6 23.7 15 Aug 10.9 +0.5 6.5 29 Aug 121.8 198.5 average 61%
Moruya Airport AWS 17.9 +0.3 25.4 15 Aug 4.0 -0.6 -3.5 23 Jul 89.4 186.6 low 48%
Moruya Heads Pilot Station 17.5 +0.8 24.5 15 Aug 7.0 +0.5 1.7 23 Jul 90.8 198.0 low 46%
Nerriga AWS 13.2   20.6 3 Aug 1.6   -6.4 15 Jul 53.2
Ulladulla AWS 17.2 +0.3 24.7 11 Aug 9.2 -0.1 4.6 23 Jul 121.4 260.7 low 47%
Southern Tablelands (Goulburn-Monaro) (district 70)
Bombala (Therry Street) 13.0 +1.2 20.1 5 Jul -0.5 0.0 -7.7 11 Jul 69.2 145.9 low 47%
Bombala AWS 11.4 +0.1 18.0 3 Aug 0.3 0.0 -6.7 30 Aug 62.6 118.8 average 53%
Canberra Airport 13.5   19.5 3 Aug 0.3   -7.4 23 Jul 64.6 126.3 v low 51%
Cooma Airport AWS 10.8 -0.1 18.1 14 Aug -1.4 +0.2 -11.0 30 Aug 51.8 100.4 low 52%
Cooma Visitors Centre 12.4 +0.2 19.9 14 Aug -2.1 -0.1 -10.0 23 Jul 36.5 94.8 v low 39%
Goulburn Airport AWS 12.8 +0.3 19.8 3 Aug -0.2 -0.9 -9.2 22 Jul 48.0 130.8 v low 37%
Goulburn TAFE 12.4 0.0 19.1 3 Aug 2.1 0.0 -5.0 23 Jul 66.4 146.4 v low 45%
Mount Ginini AWS 2.5 -1.0 7.6 3 Aug -2.5 -0.7 -8.0 20 Aug 232.0 272.9 average 85%
Taralga Post Office 11.5 +0.4 18.2 3 Aug 1.1 -0.1 -7.0 22 Jul 128.7 209.9 low 61%
Tuggeranong (Isabella Plains) AWS 13.3 +0.2 18.7 5 Jul 0.3 -0.4 -7.9 23 Jul 54.6 141.0 lowest 39%
Southern Tablelands (Snowy Mountains) (district 71)
Perisher Valley AWS 2.9   7.9 30 Aug -4.1   -14.2 29 Aug 563.4
Thredbo Village     11.6 4 Jul -2.7 +0.1 -10.5 22 Jul 454.1 514.4 average 88%
Southwest Slopes (South) (district 72)
Albury Airport AWS 14.1 +0.1 19.6 5 Jul 2.7 -0.8 -2.7 15 Jul 142.8 194.5 low 73%
Cabramurra SMHEA AWS 3.7 -1.0 8.9 4 Jul -0.9 -0.6 -6.4 20 Aug 357.0 365.7 average 98%
Hume Reservoir 13.7 +0.5 19.2 7 Jun 5.0 +0.4 -0.7 15 Jul 143.4 219.6 low 65%
Khancoban AWS 12.1 -0.4 17.7 26 Aug 1.8 -0.3 -3.9 23 Jul 248.0 292.8 low 85%
Tumbarumba Post Office 11.8 +0.2 17.9 6 Jun 0.1 -0.2 -6.5 25 Jun 218.8 313.3 low 70%
Wagga Wagga AMO 14.4 +0.7 20.3 3 Aug 2.9 -0.4 -3.9 29 Aug 75.4 155.9 v low 48%
Southwest Slopes (North) (district 73)
Burrinjuck Dam 12.9 +0.4 17.5 7 Jun 2.6 -1.0 -2.3 15 Jul 201.8 296.9 low 68%
Cootamundra Airport 14.1 +0.3 20.9 3 Aug 0.4 -1.2 -7.0 30 Aug 86.5 168.1 lowest 51%
Grenfell (Manganese Rd) 14.6 +0.7 20.8 5 Jul 1.6 -2.1 -4.2 14 Jul 66.5 169.5 v low 39%
Gundagai (Nangus Rd) 14.5 +0.5 22.0 4 Aug 2.0 -1.0 -3.6 30 Aug 101.2 178.0 lowest 57%
Temora Airport 15.1 +0.5 21.3 25 Aug 1.3 -1.2 -6.8 29 Aug 73.6 123.7 v low 59%
Young Airport 14.1 +0.3 20.2 3 Aug 0.0 -1.5 -5.8 29 Aug 100.0 169.5 low 59%
Riverina (East) (district 74)
Corowa Airport 14.4 +0.4 19.2 10 Aug 1.4 -2.0 -4.9 29 Aug 100.4 163.9 low 61%
Deniliquin Airport AWS 15.8 +0.6 21.8 5 Jul 3.1 -0.8 -4.1 11 Jul 47.4 91.3 low 52%
Kapooka (Defence) 14.6   21.1 3 Aug 2.6   -5.3 29 Aug 70.8
Narrandera Airport AWS 16.1 +0.9 21.4 15 Aug 3.1 -0.5 -4.7 29 Aug 63.6 114.6 v low 55%
Tocumwal Airport 14.7 -0.1 20.8 5 Jul 2.9 -1.1 -3.1 29 Aug 67.1 128.7 low 52%
Yanco Agricultural Institute 16.0 +0.7 21.4 5 Jul 4.8 -0.5 -1.4 25 Jun 43.8 104.0 low 42%
Riverina (West) (district 75)
Griffith Airport AWS 16.7 +1.2 22.6 5 Jul 3.1 -0.9 -4.5 29 Aug 47.6 103.7 low 46%
Hay Airport AWS 17.1 +0.7 22.9 5 Jul 3.3 -0.6 -4.7 11 Jul 30.2 68.3 v low 44%
Hillston Airport 17.4 +1.5 23.6 5 Jul 3.6 -0.9 -3.0 25 Jun 28.6 96.8 v low 30%
Lake Cargelligo Airport 17.2 +0.8 24.0 5 Jul 4.2 0.0 -2.9 15 Jul 49.6 105.1 low 47%
Note: From 2017, information about Lord Howe and Norfolk Islands can be found in the climate summary for the Remote Islands and Antarctica

Notes

The Seasonal climate summary, generally published on the first working day of each month, lists 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. More extensive discussion of significant weather events, along with later information and data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.

This statement has been prepared based on information available at 10 am on Monday 3 September 2018. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

In some situations, some or all of the rainfall is in the form of hail or snow. In these cases the totals given are for the water equivalent: the depth of liquid water that results from melting any frozen precipitation. There can be significant 'undercatch' of snow in strong winds, meaning the true precipitation can be higher than that reported.

Averages for individual sites 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 10 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.

Where temperature area averages are mentioned, they are derived from the ACORN-SAT dataset.

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