New South Wales in August 2018: Largely dry with warm days and cool nights

Below average August rainfall was recorded throughout much of the State, except parts of the north. Mean August maximum temperatures were generally above average, with overnight temperatures below average.

Below average rainfall continues

  • Very much below average rainfall across parts of the west and south, average across parts of the north
  • August rainfall totals for the state as a whole was the lowest since 2013, at 57% below normal
  • August continues a run of eight consecutive months of below average rainfall for New South Wales, resulting in the driest January to August period since 1965
  • A low pressure system and associated trough brought widespread rainfall totals in excess of 10 mm throughout central and northern NSW on 26 August
  • On 26 August, Bourke Airport recorded its highest August daily rainfall on record
  • A number of sites had their lowest total August rainfall on record or their lowest total August rainfall for at least 20 years

Above average days and cool nights for most of the State

  • August maximum temperatures were warmer than average for the State, except for the lower eastern Murray-Darling Basin and parts of the north
  • Monthly maximum temperature anomalies for the State as a whole were the warmest for August since 2013
  • NSW has not reported a negative monthly maximum temperature anomaly since April 2017
  • Minimum temperatures were below average for much of the state, except parts of the far west and the southern to central eastern regions
  • Minimum temperatures were very much below average across the north, and southern parts of the Central West Slopes and Plains and Lower Western Districts
  • For the State as a whole, monthly minimum temperature anomalies were the coolest for August since 2012
  • Bombala AWS recorded its coldest August day on record
  • Newcastle University recorded its warmest August night on record
  • A number of sites have recorded their lowest August temperature on record
  • A few sites have recorded their lowest August mean daily minimum temperature on record or lowest August mean temperature for at least 20 years

Wind, fire, dust and snow

  • Many inland sites reported very windy conditions for August
  • During the month bushfires occurred along the NSW east coast and parts of the Tablelands and Slopes and Plains Districts
  • The snow depth at Spencers Creek reached 224.6 cm on August 22

Further information

Media
(03) 9669 4057
Enquiries

Extremes in August 2018
Hottest day 30.3 °C at Casino Airport AWS on the 15th
Warmest days on average 24.3 °C at Casino Airport AWS
Coolest days on average 2.5 °C at Mount Ginini AWS and Perisher Valley AWS
Coldest day -4.7 °C at Thredbo AWS on the 19th
Coldest night -14.2 °C at Perisher Valley AWS on the 29th
Coolest nights on average -4.6 °C at Perisher Valley AWS
Warmest nights on average 12.9 °C at Byron Bay (Cape Byron AWS)
Warmest night 16.9 °C at South West Rocks (Smoky Cape Lighthouse) on the 16th and Smithville AWS on the 30th
Warmest on average overall 16.9 °C at South West Rocks (Smoky Cape Lighthouse)
Coolest on average overall -1.0 °C at Perisher Valley AWS
Wettest overall 226.6 mm at Perisher Valley AWS
Driest overall 0 mm at Cobargo Post Office
Wettest day 72.2 mm at Yamba Pilot Station on the 25th
Strongest wind gust 124 km/h at Thredbo AWS on the 10th

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 highest August daily rainfall
New record
(mm)
Old
record
Years of
record
Bourke Airport AWS 23.4 on the 26th 21.8 on the 24th in 2003 20



Record lowest August total rainfall
New record
(mm)
Old
record
Years of
record
Average for
August
Brogo (Blanchards Road) 1.2 1.6 in 1997 39 59.0
Port Macquarie Airport AWS 3.0 = 3.0 in 2009 24 64.0
St Ives (Richmond Avenue) 5.2 5.4 in 2009 20 80.6
West Wyalong Airport AWS 8.4 9.0 in 2006 20 36.3

Lowest August total rainfall for at least 20 years
Observed
(mm)
Most recent
lower
Average for
August
Condobolin Airport AWS 3.2 0.8 in 1995 27.1
Quandialla Post Office 8.0 4.8 in 1995 42.1
Tuross 7.8 3.2 in 1995 54.1
Mangrove Mountain AWS 2.2 1.2 in 1995* 55.4
Cooma Visitors Centre 9.6 8.6 in 1997 27.1
Hillston ( Aldinga) 7.4 0.6 in 1995* 33.0
Nimmitabel (Cottesloe) 10.8 9.6 in 1995* 66.4
Bega AWS 2.2 1.0 in 1997* 31.9
Cooma Airport AWS 10.4 6.0 in 1997* 30.7

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




Record lowest August daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Bombala AWS 4.1 on the 19th 5.1 on the 18th in 1996 27 12.2



Record highest August daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Newcastle University 15.8 on the 16th 15.2 on the 25th in 2009 20 8.0



Record lowest August temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Grenfell (Manganese Rd) -4.2 on the 29th -3.6 on the 28th in 2017 52 3.9
Lostock Dam -0.4 on the 20th 0.0 on the 24th in 2017 48 6.8
Cooma Airport AWS -11.0 on the 30th -10.6 on the 3rd in 2014 27 -1.5
Mangrove Mountain AWS -0.8 on the 30th -0.5 on the 13th in 2005 25 6.6
Port Macquarie Airport AWS -2.4 on the 21st -1.2 on the 12th in 2005 24 6.7
Cootamundra Airport -7.0 on the 30th -6.5 on the 3rd in 1999 23 1.5
Narrandera Airport AWS -4.7 on the 29th = -4.7 on the 3rd in 2014 23 3.7
Bellambi AWS 5.3 on the 29th 5.7 on the 19th in 2008 22 10.6
Evans Head RAAF Bombing Range AWS 4.4 on the 21st 4.9 on the 9th in 2008 21 10.8



Record lowest August mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Casino Airport AWS 4.4 4.9 in 2008 23 7.1
Port Macquarie Airport AWS 4.0 5.3 in 2001 23 6.7
Merimbula Airport AWS 3.4 3.6 in 2003 20 4.8

Lowest August mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
August
Corowa Airport 1.4 0.8 in 1994 3.7
Taree Airport AWS 4.7 3.7 in 1997 6.8



Record lowest August mean temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Tocumwal Airport 8.6 8.7 in 2000 46 10.0

Lowest August mean temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
August
Corowa Airport 8.0 =8.0 in 1994 9.4



Summary statistics for August 2018
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
August
2018
Diff
from
average
Highest for
August
2018
Mean for
August
2018
Diff
from
average
Lowest for
August
2018
Total for
August
2018
Average
for
August
Rank of
August
2018
Fraction of
August
average
Western (Far Northwest) (district 46)
Fowlers Gap AWS 20.3 +0.7 25.5 30th 5.5 -0.2 -1.2 21st 4.4 10.8 low 41%
Smithville AWS 21.4   27.7 30th 5.6   -0.9 21st 3.8
Tibooburra Airport 21.3 +0.4 28.3 30th 7.6 -0.2 2.9 22nd 1.0 7.4 low 14%
White Cliffs AWS 20.6 +0.4 25.3 5th 6.8 -0.3 0.9 21st 1.6 12.6 low 13%
Wilcannia Aerodrome AWS 20.5 +0.4 25.5 15th 4.6 -0.3 -1.6 21st 4.0 15.5 low 26%
Western (Lower Darling) (district 47)
Broken Hill Airport AWS 18.9 +1.1 24.0 29th 6.0 +0.4 -0.9 21st 6.0 18.5 low 32%
Lake Victoria Storage 18.3 +1.1 22.0 10th 5.6 -0.5 0.5 20th 20.9 23.6 average 89%
Menindee Post Office 20.3 +1.0 25.7 15th 5.2 -0.1 -0.8 22nd 5.4 18.2 low 30%
Mulurulu AWS 18.9   23.0 15th 4.3   -2.1 29th 4.8
Pooncarie Mail Agency 19.6 +0.2 23.5 5th 5.4 -0.1 -0.2 21st 6.3 22.7 low 28%
Western (Upper Darling) (district 48)
Bourke Airport AWS 21.1 -0.2 25.3 15th 4.2 -0.8 -1.4 21st 25.2 13.0 high 194%
Brewarrina Hospital 21.2 +0.6 25.0 11th 4.2 -1.5 -1.0 21st 12.5 21.4 average 58%
Cobar Airport AWS 19.5 +0.7 23.2 15th 3.5 -0.7 -3.1 21st 5.0 18.3 low 27%
Cobar MO 19.3 +1.3 23.3 15th 5.8 -0.4 1.1 20th 7.4 26.2 low 28%
Collarenebri (Albert St) 21.9 +1.0 27.0 31st     -1.2 15th 12.4 26.4 average 47%
Lightning Ridge Visitor Information Cent 21.6 0.0 26.7 11th 4.9 -1.2 -0.5 15th 20.6 18.3 average 113%
Noona AWS 19.5   23.5 15th 6.4   0.4 29th 0.8
Wanaaring (Delta AWS) 20.8   25.2 15th 3.8   -2.5 21st 7.2
Wanaaring Post Office 22.0 +0.6 27.8 5th 3.4 -1.8 -2.3 21st 2.6 14.9 low 17%
Western (Southwest Plains) (district 49)
Balranald (RSL) 17.9 +0.3 22.3 10th 4.9 +0.2 -0.5 29th 4.2 29.4 v low 14%
Euabalong (Mount Hope AWS) 18.4   23.0 15th 2.0   -4.4 29th 2.8
Ivanhoe Aerodrome AWS 19.2 +0.4 25.0 15th 5.7 -0.2 0.9 20th 5.6 19.3 low 29%
Central Western Plains (South) (district 50)
Condobolin Ag Research Stn 18.0 +1.1 23.1 15th 2.2 -1.3 -3.7 29th 5.4 33.4 v low 16%
Condobolin Airport AWS 18.7 +1.4 23.8 15th 2.5 -0.5 -4.0 29th 3.2 27.1 v low 12%
Peak Hill Post Office 18.0 +0.9 22.1 24th 5.1 -0.6 -0.7 21st 24.3 42.3 average 57%
West Wyalong Airport AWS 16.8 +0.8 21.9 25th 2.8 -0.5 -2.7 29th 8.4 36.3 lowest 23%
Central Western Plains (North) (district 51)
Coonamble Airport AWS 19.8 +0.5 25.7 11th 2.8 -1.2 -2.2 21st 11.0 24.9 average 44%
Nyngan (Girilambone (Okeh) AWS) 19.8   23.8 15th 4.0   -0.1 21st 14.2
Nyngan Airport 19.6 +1.1 23.5 15th 3.9 -0.9 0.3 15th 19.2 29.7 average 65%
Trangie Research Station AWS 18.9 +1.5 22.7 15th 3.8 -0.2 -0.8 22nd 23.8 31.9 average 75%
Walgett (Brewon AWS) 20.8   25.4 11th 3.2   -2.4 21st 23.4
Northwest Plains (West) (district 52)
Walgett Airport AWS 21.5 +0.5 26.6 11th 2.8 -1.5 -2.6 30th 9.4 19.7 average 48%
Northwest Plains (East) (district 53)
Moree Aero 21.0 +0.6 26.4 31st 4.6 -0.6 -1.7 22nd 33.2 25.8 average 129%
Northwest Slopes (North) (district 54)
Barraba Post Office 19.4 +1.4 24.6 16th -1.2 -2.2 -4.5 24th 47.5 39.7 average 120%
Narrabri Airport AWS 20.7 +0.8 25.6 24th 2.5 -2.2 -3.2 20th 31.2 31.2 average 100%
Northwest Slopes (South) (district 55)
Gunnedah Airport AWS 20.1 +0.8 25.6 31st 1.1 -1.3 -2.8 18th 31.4 30.8 average 102%
Gunnedah Resource Centre 19.6 +1.6 24.7 31st 5.0 -0.8 1.5 30th 29.6 35.3 average 84%
Quirindi Post Office 19.2 +1.2 23.0 16th 0.8 -1.6 -3.0 30th 29.8 44.5 average 67%
Tamworth Airport AWS 19.0 +0.6 24.2 31st 1.1 -1.6 -2.8 13th 29.4 39.4 average 75%
Woolbrook (Danglemah Road) 15.0 +0.6 20.0 31st -1.7 -0.8 -8.0 21st 21.4 52.7 low 41%
Northern Tablelands (West) (district 56)
Armidale (Tree Group Nursery) 15.7 +0.9 20.6 14th -1.9 -1.7 -7.6 30th 26.6 45.0 average 59%
Armidale Airport AWS 14.5 +0.6 19.6 31st 0.6 -1.2 -5.1 13th 24.2 44.8 average 54%
Glen Innes Ag Research Stn 15.4 +1.3 21.0 14th -0.3 -1.6 -4.0 30th 41.8 48.5 average 86%
Glen Innes Airport AWS 15.5 +0.6 21.0 14th -3.2 -2.2 -9.0 13th 47.0 49.8 average 94%
Guyra Hospital 12.9 +0.7 18.6 14th 0.3 -1.0 -5.0 13th 34.2 53.1 average 64%
Inverell (Raglan St) 18.5 +0.1 23.1 5th 0.5 +0.3 -4.1 21st 59.6 36.9 high 162%
Inverell Research Centre 17.8 +1.1 22.5 5th 3.2 -1.2 -2.2 21st 67.0 44.3 high 151%
Tenterfield (Federation Park) 17.8 +1.7 24.3 30th -1.8 -3.6 -6.6 13th 18.8 43.5 low 43%
Northern Tablelands (East) (district 57)
Tabulam (Muirne) 20.2 +1.9 25.7 15th 8.0 0.0 4.0 21st 23.2 39.3 average 59%
Upper North Coast (district 58)
Ballina Airport AWS 21.8 +0.5 26.5 16th 7.0 -1.8 1.7 21st 46.0 81.6 average 56%
Byron Bay (Cape Byron AWS) 20.3 +0.2 25.5 16th 12.9 -0.2 9.0 20th 50.6 74.0 average 68%
Casino Airport AWS 24.3 +1.8 30.3 15th 4.4 -2.7 -0.8 15th 19.8 46.7 average 42%
Evans Head RAAF Bombing Range AWS 22.0 +0.7 29.6 6th 9.8 -1.0 4.4 21st 36.6 82.3 average 44%
Grafton Airport AWS 22.8 +0.5 29.0 15th 3.7 -2.3 -2.8 21st 45.8 61.3 average 75%
Grafton Research Stn 23.4 +1.6 30.2 15th 6.0 -1.2 0.1 21st 31.2 40.1 average 78%
Lismore Airport AWS 24.0 +1.4 29.7 16th 4.1 -2.6 -0.7 21st 19.2 62.1 average 31%
Murwillumbah (Bray Park) 23.7 +1.2 28.7 16th 6.6 -2.2 0.3 22nd 42.5 53.9 average 79%
Yamba Pilot Station 21.3 +1.2 25.9 16th 9.8 -0.7 5.7 21st 92.4 75.7 high 122%
Lower North Coast (district 59)
Coffs Harbour Airport 20.7   25.9 31st 6.0   0.2 21st 61.4
Dorrigo (Old Coramba Rd) 16.9 +0.8 25.0 15th 3.4 -1.4 -2.0 13th 12.0 99.9 low 12%
Kempsey Airport AWS 22.0 +0.4 28.7 15th 2.7 -2.5 -4.2 21st 2.0 53.3 low 4%
South West Rocks (Smoky Cape Lighthouse) 21.2 +1.3 25.4 16th 12.4 +0.6 8.3 13th 10.0 78.5 low 13%
Manning (district 60)
Forster - Tuncurry Marine Rescue 19.1 -0.4 22.1 16th 7.8 -1.4 3.5 8th 9.4 70.9 low 13%
Port Macquarie Airport AWS 20.6 +0.3 25.9 15th 4.0 -2.7 -2.4 21st 3.0 64.0 lowest 5%
Taree Airport AWS 20.5 +0.4 27.0 15th 4.7 -2.1 -2.0 21st 4.0 50.0 low 8%
Yarras (Mount Seaview) 21.5 +1.1 27.3 15th 4.9 -1.1 1.6 8th 34.8 72.1 average 48%
Hunter (district 61)
Cessnock Airport AWS 19.9 +0.4 25.5 16th 4.2 -0.3 -3.2 30th 13.6 33.0 low 41%
Cooranbong (Lake Macquarie AWS) 19.8 0.0 25.1 15th 3.8 -1.2 -1.1 30th 7.0 40.4 low 17%
Gosford AWS 19.0   24.7 15th 6.4   1.9 30th 17.6
Maitland Airport AWS 20.0   26.2 16th 5.6   -0.3 30th 14.6
Mangrove Mountain AWS 18.1 +0.7 23.1 11th 5.7 -0.9 -0.8 30th 2.2 55.4 v low 4%
Merriwa (Roscommon) 18.4 +0.5 23.6 11th 2.2 -0.6 -3.2 23rd 24.0 33.2 average 72%
Murrurundi Gap AWS 15.3 +0.8 19.1 11th 5.1 -0.6 1.4 20th 24.6 40.8 low 60%
Nelson Bay (Nelson Head) 18.7 -0.2 23.6 15th 10.5 +0.7 7.9 29th 9.9 101.6 v low 10%
Newcastle Nobbys Signal Station AWS 18.9 +0.8 24.4 16th 10.0 +0.7 5.3 30th 9.8 72.5 v low 14%
Newcastle University 20.0 +0.3 25.2 11th 7.4 -0.6 2.5 30th 18.9 57.5 low 33%
Norah Head AWS 19.2 +0.4 24.2 15th 9.9 -0.6 6.5 13th 14.2 67.3 low 21%
Paterson (Tocal AWS) 19.9 +0.5 25.8 16th 6.3 -0.3 1.4 30th 19.6 37.0 average 53%
Scone Airport AWS 19.8 +1.1 24.8 16th 3.5 -0.1 -2.4 30th 19.2 35.8 average 54%
Singleton (Defence) 19.8   25.8 16th 6.8   2.8 29th 16.4
Singleton STP 20.3 +0.4 25.7 16th 6.0 +1.9 -1.5 26th 9.0 29.3 low 31%
Williamtown RAAF 19.7 +1.0 25.2 11th 6.2 -0.7 0.4 18th 18.2 72.9 low 25%
Central Tablelands (North) (district 62)
Gulgong Post Office 17.0 +0.5 21.5 11th 3.0 -0.4 -1.6 30th 39.6 45.8 average 86%
Mudgee Airport AWS 16.1 -0.2 21.5 11th 0.8 -0.8 -3.8 23rd 39.6 35.2 average 113%
Nullo Mountain AWS 10.6 -0.3 15.5 11th 2.3 -0.7 -2.3 20th 37.6 54.1 average 70%
Central Tablelands (South) (district 63)
Bathurst Agricultural Station 13.4 +0.4 19.0 11th 0.2 -1.1 -4.6 30th 44.6 49.4 average 90%
Bathurst Airport AWS 13.5 -0.3 19.6 11th 0.6 -0.6 -4.2 2nd 36.6 40.1 average 91%
Katoomba (Murri St) 12.2 +1.0 19.2 14th 3.4 +0.1 -1.4 20th 26.4 78.7 low 34%
Lithgow (Cooerwull) 12.0 -0.6 17.3 11th 1.1 -0.3 -6.6 30th 35.8 57.4 average 62%
Marrangaroo (Defence) 12.3   17.8 11th -0.6   -8.3 30th 36.6
Mount Boyce AWS 11.2 -0.1 17.3 10th 2.4 -0.6 -2.3 20th 30.0 54.7 average 55%
Orange Airport AWS 10.9 -0.3 16.1 11th 0.4 -0.5 -5.4 30th 53.2 82.7 average 64%
Springwood (Valley Heights) 17.6 -0.3 24.2 11th 7.1 0.0 2.6 29th 6.4 53.0 low 12%
Central Western Slopes (North) (district 64)
Coonabarabran (Showgrounds) 17.8 +1.0 22.1 11th 0.0 -0.9 -4.6 23rd 24.8 52.1 low 48%
Coonabarabran Airport AWS 16.4 +0.4 20.8 11th 5.7 -0.3 1.1 20th 20.6 36.1 average 57%
Dunedoo Post Office 18.2 +0.9 22.8 11th 2.6 -0.4 -2.1 13th 46.1 40.2 average 115%
Central Western Slopes (South) (district 65)
Cowra Airport AWS 15.9 -0.1 22.2 3rd 1.3 -1.1 -4.8 29th 22.6 35.1 average 64%
Dubbo Airport AWS 18.3 +0.8 23.0 11th 2.2 -1.0 -2.8 22nd 36.4 35.3 average 103%
Forbes Airport AWS 17.5 +1.0 22.6 15th 1.4 -1.3 -4.7 29th 12.2 33.6 low 36%
Parkes Airport AWS 16.8 +0.8 21.1 15th 0.9 -1.5 -5.3 29th 17.8 44.1 low 40%
Wellington (D&J Rural) 18.5 +1.5 23.5 3rd 1.2 -1.7 -2.5 14th 47.2 48.7 average 97%
Metropolitan (East) (district 66)
Bankstown Airport AWS 19.6 +0.6 26.3 11th 5.1 -0.9 0.7 18th 8.8 49.5 low 18%
Canterbury Racecourse AWS 18.9 -0.1 25.5 11th 5.3 -1.2 1.4 18th 5.8 62.2 v low 9%
Holsworthy Aerodrome AWS 18.7   25.8 11th 5.7   0.4 29th 10.6
Parramatta North (Masons Drive) 19.2 +0.1 25.6 11th 6.9 -0.2 1.0 30th 8.2 55.3 low 15%
Sydney (Observatory Hill Comparison) 19.3   25.0 11th 9.3   5.1 29th 8.6
Sydney (Observatory Hill) 19.2 +1.3 25.6 11th 9.5 +0.5 5.2 29th 7.8 80.3 low 10%
Sydney Airport AMO 19.3 +0.9 26.6 11th 8.9 +0.7 4.6 29th 4.6 76.0 v low 6%
Sydney Harbour (Wedding Cake West) 17.4 -0.5 24.9 15th 10.8 -0.4 6.7 29th
Sydney Olympic Park AWS (Archery Centre) 19.3   25.5 11th 5.9   2.2 29th 8.0
Terrey Hills AWS 17.8 0.0 23.9 15th 8.2 -0.2 2.7 29th 2.6 51.2 v low 5%
Metropolitan (West) (district 67)
Badgerys Creek AWS 19.2 0.0 26.5 11th 4.3 -0.4 -1.0 29th 6.0 35.4 low 17%
Horsley Park Equestrian Centre AWS 19.0 0.0 25.6 11th 5.5 -1.0 1.0 29th 4.8 37.6 low 13%
Penrith Lakes AWS 20.2 +0.3 26.4 11th 5.4 -0.8 0.8 29th 4.6 29.3 low 16%
Richmond RAAF 20.3 +0.6 26.6 11th 3.9 -0.5 -1.8 29th 3.8 32.0 low 12%
Illawarra (district 68)
Albion Park (Wollongong Airport) 18.6 -0.2 26.9 11th 6.4 -0.1 -0.6 18th 19.0 53.5 low 36%
Bellambi AWS 17.9 -0.1 25.6 15th 10.0 -0.6 5.3 29th 29.4 90.8 average 32%
Camden Airport AWS 19.2 +0.1 26.7 11th 3.6 -0.3 -2.2 18th 6.4 40.7 low 16%
Campbelltown (Mount Annan) 19.1 -0.1 26.3 11th 3.7 -0.9 -1.7 18th 4.0 38.8 v low 10%
High Range AWS (Wanganderry) 12.0   19.5 11th 3.9   -1.5 29th 12.6
Holsworthy (Defence) 18.7   26.0 11th 5.7   0.4 29th 17.0
Jervis Bay (Point Perpendicular) 16.6 -0.4 22.1 15th 10.3 +0.1 7.4 18th 25.4 70.6 low 36%
Kiama (Bombo Headland) 17.7 -0.3 25.2 11th 10.1 -0.5 6.2 29th 54.2 68.2 average 79%
Moss Vale AWS 12.9 -0.5 19.7 11th 2.7 -0.2 -4.3 30th 27.2 48.2 average 56%
Nowra RAN Air Station AWS 18.3 +0.1 25.4 11th 6.7 -0.1 2.4 29th 24.0 67.2 average 36%
South Coast (district 69)
Bega AWS 18.3 +0.4 24.6 11th 2.3 -0.8 -2.8 30th 2.2 31.9 v low 7%
Braidwood Racecourse AWS 13.4 -0.1 19.5 3rd 1.2 +0.7 -7.0 30th 23.0 50.8 average 45%
Green Cape AWS 15.6 -0.6 23.0 15th 8.6 -0.8 5.6 28th 20.6 35.6 average 58%
Merimbula Airport AWS 17.4 0.0 24.1 15th 3.4 -1.4 -0.7 10th 19.4 45.1 low 43%
Montague Island Lighthouse 16.6 +0.5 23.7 15th 10.8 +0.5 6.5 29th 5.2 52.5 low 10%
Moruya Airport AWS 18.2 0.0 25.4 15th 3.5 -0.8 -0.5 18th 10.4 55.3 low 19%
Moruya Heads Pilot Station 17.8 +0.6 24.5 15th 6.8 +0.3 2.5 30th 7.2 55.0 low 13%
Narooma (Marine Rescue) 17.6 +0.7 24.5 15th 7.8 +0.4 4.5 10th 18.8 50.8 average 37%
Nerriga AWS 13.9   20.6 3rd 1.9   -6.1 30th 11.2
Ulladulla AWS 17.7 +0.3 24.7 11th 9.3 +0.1 4.6 29th 21.4 70.5 average 30%
Southern Tablelands (Goulburn-Monaro) (district 70)
Bombala (Therry Street) 13.8 +1.1 19.1 3rd -0.7 -0.5 -7.5 30th 14.4 39.9 low 36%
Bombala AWS 12.2 0.0 18.0 3rd 0.1 -0.3 -6.7 30th 12.8 27.0 low 47%
Canberra Airport 13.9   19.5 3rd 0.8   -6.4 30th 29.0 43.4 low 67%
Cooma Airport AWS 11.7 -0.2 18.1 14th -1.7 -0.2 -11.0 30th 10.4 30.7 low 34%
Cooma Visitors Centre 13.2 -0.1 19.9 14th -2.5 -0.6 -10.0 30th 9.6 27.1 low 35%
Goulburn Airport AWS 13.1 -0.3 19.8 3rd 0.5 0.0 -7.4 30th 24.0 39.3 low 61%
Goulburn TAFE 12.7 -0.5 19.1 3rd 2.5 +0.3 -4.5 29th 32.4 52.5 average 62%
Mount Ginini AWS 2.5 -1.6 7.6 3rd -3.0 -1.0 -8.0 20th 81.0 88.0 average 92%
Taralga Post Office 11.7 -0.2 18.2 3rd 1.2 0.0 -5.4 30th 62.8 67.4 average 93%
Tuggeranong (Isabella Plains) AWS 13.7 -0.4 18.5 3rd 0.8 -0.1 -6.1 30th 24.0 47.1 low 51%
Southern Tablelands (Snowy Mountains) (district 71)
Perisher Valley AWS 2.5   7.9 30th -4.6   -14.2 29th 226.6
Thredbo Village 5.8 -0.8 10.0 14th -2.5 0.0 -10.0 29th 172.7 195.3 average 88%
Southwest Slopes (South) (district 72)
Albury Airport AWS 14.1 -0.8 18.8 26th 3.0 -0.6 -1.9 29th 53.8 66.5 average 81%
Cabramurra SMHEA AWS 3.4 -1.5 7.9 3rd -1.4 -0.9 -6.4 20th 133.4 129.6 average 103%
Hume Reservoir 14.0 -0.2 18.8 26th 5.1 +0.2 0.7 20th 54.6 76.0 low 72%
Khancoban AWS 12.6 -1.1 17.7 26th 2.5 0.0 -3.7 29th 86.6 105.4 average 82%
Tumbarumba Post Office 11.7 -0.5 17.1 3rd 1.3 +0.4 -4.6 29th 93.2 106.6 average 87%
Wagga Wagga AMO 14.7 +0.2 20.3 3rd 2.9 -0.6 -3.9 29th 20.4 50.6 low 40%
Southwest Slopes (North) (district 73)
Burrinjuck Dam 13.3 -0.1 17.3 25th 2.6 -1.1 -1.5 29th 85.2 98.2 average 87%
Cootamundra Airport 14.4 -0.2 20.9 3rd 0.3 -1.2 -7.0 30th 26.5 54.2 low 49%
Grenfell (Manganese Rd) 15.2 +0.4 20.3 3rd 1.8 -2.1 -4.2 29th 17.4 55.4 low 31%
Gundagai (Nangus Rd) 14.9 -0.1 22.0 4th 2.2 -0.9 -3.6 30th 36.4 56.4 low 65%
Temora Airport 15.8 +0.4 21.3 25th 1.2 -0.8 -6.8 29th 10.8 35.3 low 31%
Young Airport 14.5 -0.1 20.2 3rd -0.3 -1.6 -5.8 29th 28.2 50.2 low 56%
Riverina (East) (district 74)
Corowa Airport 14.7 -0.3 19.2 10th 1.4 -2.3 -4.9 29th 34.0 53.3 low 64%
Deniliquin Airport AWS 16.6 +0.4 21.4 10th 3.3 -0.8 -4.1 29th 9.8 33.6 low 29%
Kapooka (Defence) 15.1   21.1 3rd 2.8   -5.3 29th 19.0
Narrandera Airport AWS 16.9 +0.8 21.4 15th 3.3 -0.4 -4.7 29th 13.4 39.4 low 34%
Tocumwal Airport 14.4 -1.3 18.4 10th 2.8 -1.5 -3.1 29th 19.7 43.0 low 46%
Yanco Agricultural Institute 16.8 +0.5 21.0 26th 5.0 -0.4 -1.1 28th 8.8 35.7 low 25%
Riverina (West) (district 75)
Griffith Airport AWS 17.7 +1.2 21.9 10th 3.2 -0.6 -4.5 29th 6.4 35.2 low 18%
Hay Airport AWS 18.1 +0.5 22.5 10th 3.9 -0.3 -3.3 29th 2.8 22.8 low 12%
Hillston Airport 18.6 +1.5 22.9 15th 4.0 -0.9 -2.5 29th 7.8 30.9 low 25%
Lake Cargelligo Airport 18.4 +0.8 23.2 15th 4.3 -0.3 -0.8 21st 8.8 33.4 low 26%
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 Monthly 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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