New South Wales in September 2021: Wet inland and warm days

September in New South Wales was wetter than average, with widespread falls in inland areas at the start and end of the month. Daytime temperatures were generally above average across the state, although nights were relatively cool. At the end of the month a slow-moving inland trough generated severe thunderstorms, with a tornado confirmed near Bathurst on the 30th.

Wet inland

  • September rainfall was 20% above average for New South Wales as a whole at 42.4 mm, the wettest since the record rainfall in 2016.
  • Rainfall was above average in all inland areas except for parts of the far west, although it was below average for most coastal areas.
  • The rainfall pattern was consistent with the weak negative Indian Ocean Dipole, where relatively warm water off the Australian north-west coast acts as a source of moisture for inland areas.
  • On the 3rd and the 4th a cold front combined with moist tropical air to bring daily rainfall of 25 to 50 mm to southern areas and the Western Slopes.
  • At the end of the month a slow-moving inland trough brought up to 60 mm in the 24 hours to 9am on the 30th to the North West Slopes and Central West Districts.
  • Some sites, including Moree and Walgett Airports, had their highest September daily rainfall on record.
  • The snow depth at the Snowy Hydro Spencers Creek site decreased from 161.1 cm to 122.6 cm during September, comparable to 2016 but less than the 182.7 cm at the end of September 2019.

Warm days, relatively cool nights

  • The September mean maximum temperature for New South Wales was 1.42 °C above the 1961–1990 average.
  • Cloudy and wet conditions meant that this was the coolest September for the state since 2016.
  • Daytime temperatures were generally above average in the west of the state, and in most coastal areas except the Northern Rivers district.
  • It was warmest at the start of the month, with the state's highest temperature for September of 33.8 °C recorded at Menindee and Pooncarie in the Lower Western District on the 2nd.
  • Broken Hill Airport equalled its warmest September night on record with 21.5 °C on the 3rd.
  • Night-time temperatures were close to or below average for most areas except for the south-east of the state.
  • Narrabri Airport had its lowest September mean daily minimum temperature on record and three other sites had their lowest since 1994.

Severe thunderstorms at the end of the month

  • On the 29th and 30th many inland areas had severe thunderstorms, with damaging winds, hail and heavy rain.
  • This was generated by a slow-moving surface trough, with a band of middle to high level cloud across the eastern states drawing tropical moisture south.
  • Giant hail (5 to 7 cm in diameter) was reported 40 km north of Bourke on the 29th, with further reports of large hail from Cunnamulla and Eulo.
  • Smaller hail (up to 2 cm in diameter) was reported in Canberra and Sydney.
  • A tornado on the 30th was confirmed at Clear Creek and Meadow Flat near Bathurst, with damage to houses, powerlines, and trees.
  • There were reports of two other tornados on the 30th near Narrabri and Mudgee.

Further information

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Extremes in September 2021
Hottest day 33.8 °C at Menindee Post Office on the 2nd
33.8 °C at Pooncarie Mail Agency on the 2nd
Warmest days on average 26.0 °C at Mungindi Post Office
Coolest days on average 3.6 °C at Thredbo AWS
Coldest day -1.8 °C at Thredbo AWS on the 5th
Coldest night -9.3 °C at Thredbo AWS on the 26th
Coolest nights on average -2.2 °C at Thredbo AWS
Warmest nights on average 15.3 °C at Byron Bay (Cape Byron AWS)
Warmest night 21.5 °C at Broken Hill Airport AWS on the 3rd
Warmest on average overall 18.6 °C at Evans Head RAAF Bombing Range AWS
Coolest on average overall 0.7 °C at Thredbo AWS
Wettest overall 261.4 mm at Perisher Valley AWS
Wettest day 69.6 mm at Thredbo AWS on the 4th
Strongest wind gust 128 km/h at Thredbo AWS on the 17th

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 September daily rainfall
New record
(mm)
Old
record
Years of
record
Burrinjuck Dam 62.2 on the 5th 61.0 on the 26th in 1960 113
Croppa Creek (Krui Plains) 61.2 on the 30th 44.2 on the 18th in 1976 108
Baradine Forestry 44.4 on the 30th 43.7 on the 24th in 1973 76
Canberra (Australian National Botanic Ga 49.5 on the 5th 45.8 on the 17th in 2013 54
Morundah Hotel 45.8 on the 4th 29.2 on the 29th in 2005 37
Hay (Bedarbidgal) 38.0 on the 4th 34.0 on the 4th in 2010 35
Walgett Airport AWS 60.0 on the 30th 44.6 on the 2nd in 2016 29
Moree Aero 58.8 on the 30th 37.2 on the 29th in 2011 27
Eungella (Oxley River) 36.5 on the 2nd 33.0 on the 17th in 2013 23
Delegate River at Quidong 32.0 on the 30th 30.2 on the 3rd in 2016 21
Gilgandra (Rosewood) 40.8 on the 30th 35.4 on the 17th in 2013 21
Terry Hie Hie 51.0 on the 30th 32.8 on the 10th in 2016 21



Record highest September daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
September
Broken Hill Airport AWS 21.5 on the 3rd = 21.5 on the 12th in 2017 33 8.5



Record lowest September mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
September
Narrabri Airport AWS 6.4 6.5 in 2012 20 8.1

Lowest September mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
September
Barraba (Clifton Lane) 2.0 1.8 in 1994 4.2
Scone Airport AWS 5.3 4.8 in 1994 6.7
Tamworth Airport AWS 4.1 3.7 in 1994 5.8



Lowest September mean temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
September
Barraba (Clifton Lane) 11.6 11.1 in 1989 12.9



Summary statistics for September 2021
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
September
2021
Diff
from
average
Highest for
September
2021
Mean for
September
2021
Diff
from
average
Lowest for
September
2021
Total for
September
2021
Average
for
September
Rank of
September
2021
Fraction of
September
average
Western (Far Northwest) (district 46)
Fowlers Gap AWS 24.0 0.0 33.2 2nd 9.1 -0.1 3.3 14th 12.4 16.5 average 75%
Smithville AWS 25.1   33.4 2nd 9.9   3.7 14th 16.0
Tibooburra Airport 25.0 -0.6 31.9 2nd 11.2 -0.5 6.5 6th 28.6 18.9 high 151%
Wanaaring (Borrona Downs AWS) 25.4   32.6 2nd 10.1   4.9 14th 12.2
White Cliffs AWS 24.7 +0.1 32.5 2nd 10.5 -0.2 5.3 5th 9.2 16.1 average 57%
Wilcannia Aerodrome AWS 24.6 +0.1 33.6 2nd 7.8 -0.5 2.4 27th 14.2 18.0 average 79%
Western (Lower Darling) (district 47)
Broken Hill Airport AWS 22.5 +0.7 32.0 2nd 8.6 +0.1 3.5 21st 4.0 21.1 average 19%
Lake Victoria Storage 22.5 +1.9 33.0 11th 8.3 +0.2 2.5 26th 17.5 24.3 average 72%
Menindee Post Office 23.9 +0.9 33.8 2nd 8.6 +0.5 3.5 27th 17.3 18.9 average 92%
Mulurulu AWS 23.0   32.8 2nd 7.2   2.1 15th 43.2
Pooncarie Mail Agency 23.4 0.0 33.8 2nd 8.3 +0.4 3.2 26th 40.0 21.8 high 183%
Western (Upper Darling) (district 48)
Bourke Airport AWS 25.7 -0.1 32.7 12th 9.0 -0.3 2.8 6th 60.8 18.9 v high 322%
Brewarrina Hospital 25.5 +0.6 32.2 12th 8.2 -0.8 3.0 15th 41.6 24.8 high 168%
Cobar Airport AWS 23.3 +0.2 31.0 2nd 7.4 -0.4 1.1 7th 31.2 29.4 average 106%
Cobar MO 23.8 +1.6 31.3 2nd 9.0 -0.2 2.3 22nd 22.8 24.6 average 93%
Noona AWS 23.2   31.6 2nd 9.4   4.0 14th 24.6
Wanaaring (Delta AWS) 25.5   32.3 11th 8.0   1.1 22nd 15.2
Wanaaring Post Office 25.5 -0.2 32.8 2nd 7.3 -1.7 1.5 14th 17.0 14.6 average 116%
Western (Southwest Plains) (district 49)
Balranald (RSL) 22.1 +1.1 32.1 2nd 7.8 +0.7 2.4 8th 27.2 29.0 average 94%
Euabalong (Mount Hope AWS) 21.9   30.2 2nd 4.2   -2.8 26th 55.8
Ivanhoe Aerodrome AWS 22.9 -0.2 32.3 2nd 8.0 -0.7 2.1 14th 33.8 19.1 high 177%
Central Western Plains (South) (district 50)
Condobolin Ag Research Stn 20.8 +0.1 27.4 11th 4.9 -0.9 -1.1 26th 33.8 31.9 average 106%
Condobolin Airport AWS 21.0 -0.4 28.3 11th 4.5 -1.5 -1.0 15th 33.8 36.9 average 92%
Peak Hill Post Office 20.6 -0.2 27.2 2nd 7.6 -0.4 0.9 22nd 51.8 38.9 high 133%
West Wyalong Airport AWS 20.0 -0.5 27.4 11th 4.9 -0.8 -0.3 15th 70.4 36.2 high 194%
Central Western Plains (North) (district 51)
Coonamble Airport AWS 22.4 -1.4 29.8 12th 6.5 -0.9 -0.3 22nd 59.0 32.5 high 182%
Girilambone (Okeh) AWS 23.7   30.5 12th 7.3   1.6 15th 30.6
Trangie Research Station AWS 21.4 +0.2 27.4 12th 5.9 -0.6 -1.5 22nd 41.4 31.7 high 131%
Walgett (Brewon AWS) 25.4   32.5 12th 6.4   0.2 7th 67.4
Northwest Plains (West) (district 52)
Mungindi Post Office 26.0 +0.8 32.1 12th 8.8 -0.6 3.1 22nd 71.2 27.6 v high 258%
Walgett Airport AWS 24.7 -0.6 32.2 12th 6.7 -1.2 -0.4 15th 77.0 26.0 v high 296%
Northwest Plains (East) (district 53)
Moree Aero 23.3 -1.4 29.5 12th 8.0 -1.0 1.5 22nd 78.2 33.9 high 231%
Northwest Slopes (North) (district 54)
Barraba (Clifton Lane) 21.3 -0.4 26.1 1st 2.0 -2.2 -2.9 22nd 54.8 43.5 average 126%
Narrabri Airport AWS 23.3 -0.9 29.4 12th 6.4 -1.7 0.5 14th 43.0 31.5 average 137%
Northwest Slopes (South) (district 55)
Gunnedah Airport AWS 23.2 -0.3 27.7 25th 4.3 -1.5 -1.9 22nd 40.4 39.2 average 103%
Quirindi Post Office 22.2 +0.5 27.4 2nd     2.0 7th 20.8 46.1 low 45%
Tamworth Airport AWS 22.1 0.0 27.7 12th 4.1 -1.7 -2.6 22nd 36.8 42.9 average 86%
Woolbrook (Woolbrook Road) 17.9 0.0 23.0 1st 2.4 +0.4 -4.5 22nd 53.6 54.0 average 99%
Northern Tablelands (West) (district 56)
Armidale (Tree Group Nursery) 18.5 -0.2 23.0 11th 1.8 -1.0 -4.0 7th 36.4 43.6 average 83%
Armidale Airport AWS 17.2 -0.5 21.8 18th 3.9 -0.8 -2.7 22nd 47.2 49.5 average 95%
Glen Innes Ag Research Stn 17.5 +0.2 22.0 1st 3.8 -0.3 -2.0 7th 36.5 53.6 average 68%
Glen Innes Airport AWS 17.7 -0.8 22.4 1st 0.9 -1.6 -5.4 7th 42.8 55.0 average 78%
Guyra Hospital 15.6 0.0 19.9 11th 3.1 -0.8 -2.0 14th 39.2 56.0 average 70%
Inverell (Raglan St) 21.0 -0.9 25.2 1st 3.7 -0.4 -1.4 7th 45.9 49.9 average 92%
Inverell Research Centre 20.3 +0.2 25.2 1st 6.8 -0.3 1.7 7th 47.4 47.4 average 100%
Tenterfield (Federation Park) 19.5 0.0 24.8 2nd 2.5 -2.1 -3.9 7th 46.6 49.7 average 94%
Northern Tablelands (East) (district 57)
Tabulam (Muirne) 21.6 -0.1 27.2 25th 10.3 -0.2 5.3 22nd 37.0 38.1 average 97%
Upper North Coast (district 58)
Ballina Airport AWS 23.4 -0.2 28.9 13th 11.5 0.0 5.7 8th 52.0 63.9 average 81%
Byron Bay (Cape Byron AWS) 21.8 -0.3 25.7 25th 15.3 0.0 10.3 6th 39.8 49.9 average 80%
Casino Airport AWS 25.9 +0.1 32.1 13th 9.0 -1.4 2.5 11th 15.4 32.6 average 47%
Evans Head RAAF Bombing Range AWS 24.1 -0.1 32.8 12th 13.0 -0.3 9.7 11th 56.6 49.9 high 113%
Grafton Airport AWS 24.7 -0.2 31.7 20th 9.0 -0.7 3.1 6th 22.4 43.0 low 52%
Grafton Research Stn 24.7 -0.5 31.3 20th 10.7 +0.2 5.3 11th 8.6 41.3 low 21%
Lismore Airport AWS 25.2 -0.5 31.1 20th 8.5 -1.2 1.6 7th 21.2 37.6 average 56%
Murwillumbah (Bray Park) 25.1 0.0 32.2 25th 11.4 -0.1 6.9 11th 40.5 39.7 average 102%
Yamba Pilot Station 23.0 +1.0 29.8 24th 13.5 +0.5 9.0 6th 35.2 58.8 average 60%
Lower North Coast (district 59)
Coffs Harbour Airport 22.7   27.9 12th 11.5   4.2 6th 29.6
Dorrigo (Old Coramba Rd) 18.9 -0.4 25.0 12th 7.5 -0.1 3.3 23rd 24.4 75.9 low 32%
Kempsey Airport AWS 24.3 -0.2 31.9 12th 7.6 -0.6 2.3 6th 6.6 38.1 low 17%
Manning (district 60)
Port Macquarie Airport AWS (Comparison) 22.7 0.0 32.1 12th 8.9 -0.4 2.8 6th 15.6 57.2 low 27%
Port Maquarie (Port Macquarie Airport Aw 22.8   32.2 12th 8.7   2.3 6th 17.6
Taree Airport AWS 23.0 -0.1 31.4 12th 8.7 -0.7 4.3 20th 34.0 45.8 average 74%
Yarras (Mount Seaview) 24.2 +0.7 30.4 18th 8.9 +0.1 6.1 23rd 90.2 73.8 average 122%
Hunter (district 61)
Cessnock Airport AWS 23.3 +0.7 30.2 12th 6.8 -0.3 0.4 7th 13.0 43.0 low 30%
Cooranbong (Lake Macquarie AWS) 23.3 +0.6 30.8 12th 7.5 -0.5 2.4 7th 32.6 53.4 average 61%
Gosford AWS 22.2   30.0 12th 9.4   4.4 7th 46.2
Maitland Airport AWS 23.7   30.0 12th 8.2   3.0 17th 29.0
Mangrove Mountain AWS 22.0 +1.4 28.3 12th 8.2 -1.0 3.1 7th 32.8 64.0 average 51%
Merriwa (Roscommon) 21.8 0.0 27.9 12th 4.0 -1.3 -1.2 15th 35.6 38.3 average 93%
Murrurundi (Haydon Street) 21.4   26.5 2nd 4.9   0.2 7th 56.4
Murrurundi Gap AWS 18.0 -0.4 23.3 2nd 7.8 -0.8 2.2 22nd 32.4 42.9 average 76%
Nelson Bay (Nelson Head) 21.2 -0.2 29.5 12th 12.5 +0.4 7.6 22nd 132.3 89.5 high 148%
Newcastle Nobbys Signal Station AWS 21.6 +1.3 29.4 12th 12.3 +0.8 8.3 7th 67.4 71.6 average 94%
Norah Head AWS 21.8 +0.7 30.0 12th 12.4 -0.4 8.8 6th 70.2 61.5 high 114%
Paterson (Tocal AWS) 23.8 +1.3 30.4 12th 8.8 -0.2 4.4 7th 40.8 48.1 average 85%
Scone Airport AWS 22.6 +0.3 28.0 12th 5.3 -1.4 -0.1 22nd 50.8 33.9 high 150%
Singleton Defence AWS 23.7   30.1 12th 9.4   4.1 7th 21.2
Williamtown RAAF 23.0 +1.5 30.7 12th 9.3 +0.2 5.3 17th 85.2 60.5 high 141%
Central Tablelands (North) (district 62)
Mudgee Airport AWS 19.8 +0.1 25.9 12th 3.6 -0.7 -1.3 7th 47.4 54.2 average 87%
Nullo Mountain AWS 14.3 0.0 19.8 12th 5.2 -0.4 -0.2 21st 64.0 69.8 average 92%
Central Tablelands (South) (district 63)
Bathurst Agricultural Station 17.0 +0.5 22.6 1st 2.7 -0.7 -2.2 7th 49.0 47.1 average 104%
Bathurst Airport AWS 17.3 +0.1 22.7 11th 3.4 -0.2 -1.5 7th 54.6 47.8 average 114%
Katoomba (Farnells Rd) 16.2 +1.5 21.7 23rd 5.4 0.0 0.1 21st 41.0 71.1 average 58%
Lithgow (Cooerwull) 15.8 -0.5 21.2 12th 3.0 -0.7 -3.0 9th 48.7 55.7 average 87%
Marrangaroo (Defence) 16.3   21.9 12th 1.6   -5.0 9th 52.0
Mount Boyce AWS 15.2 +0.4 20.4 3rd 5.1 -0.3 -0.4 21st 30.8 53.6 low 57%
Oberon (Albion St) 14.3 +0.4 18.8 17th 3.2 +0.9 -2.4 22nd 66.2 66.9 average 99%
Orange Airport AWS 14.4 -0.5 19.9 2nd 2.8 -0.4 -3.3 9th 79.2 78.0 average 102%
Central Western Slopes (North) (district 64)
Coonabarabran (Showgrounds) 20.4 -0.1 26.5 12th 3.8 +0.2 -1.3 15th 72.9 50.3 high 145%
Coonabarabran Airport AWS 19.2 -0.7 25.2 12th 8.1 -0.8 2.4 14th 65.4 47.9 high 137%
Dunedoo Post Office 21.9 +1.0 28.0 12th 5.0 -0.8 -1.8 7th 37.1 42.9 average 86%
Central Western Slopes (South) (district 65)
Cowra Airport AWS 18.6 -1.3 24.5 2nd 4.3 +0.3 -0.4 22nd 93.2 44.1 high 211%
Dubbo Airport AWS 21.3 -0.1 27.5 12th 5.1 -1.0 -0.3 22nd 36.8 41.5 average 89%
Forbes Airport AWS 19.8 -0.9 26.0 11th 5.0 -0.2 -0.4 26th 62.4 41.4 high 151%
Parkes Airport AWS 18.7 -1.5 24.2 2nd 4.1 -0.4 -1.7 22nd 72.4 44.2 high 164%
Wellington (D&J Rural) 20.7 -0.1 26.4 2nd 4.1 -1.3 -1.2 22nd 51.4 44.6 average 115%
Metropolitan (East) (district 66)
Bankstown Airport AWS 22.9 +1.2 30.3 12th 8.4 -0.3 3.3 7th 20.8 43.9 average 47%
Canterbury Racecourse AWS 21.9 0.0 29.7 12th 8.4 -1.0 4.0 7th 57.0 48.5 average 118%
Holsworthy Aerodrome AWS 22.1   29.4 12th 7.9   1.2 7th 24.2 31.8 average 76%
Parramatta North (Masons Drive) 22.7 +0.9 30.0 12th 9.3 0.0 5.0 9th 35.2 49.6 average 71%
Sydney (Observatory Hill) 22.5   30.1 12th 11.6   7.2 7th 47.8
Sydney Airport AMO 22.3 +1.6 31.5 12th 11.6 +1.0 6.3 7th 45.0 59.6 average 76%
Sydney Harbour (Wedding Cake West) 20.1 +0.3 29.8 12th 13.0 -0.4 9.0 7th
Sydney Olympic Park AWS (Archery Centre) 22.8 +0.1 30.2 12th 9.0 -0.7 4.6 7th 31.8 45.1 low 71%
Terrey Hills AWS 20.9 +0.2 29.4 12th 10.5 -0.6 5.7 6th 55.4 60.1 average 92%
Metropolitan (West) (district 67)
Badgerys Creek AWS 22.9 +0.3 29.7 12th 6.8 -0.9 0.0 7th 18.2 34.2 low 53%
Horsley Park Equestrian Centre AWS 22.4 0.0 29.5 12th 8.7 -0.6 3.1 7th 19.4 36.4 low 53%
Penrith Lakes AWS 24.0 +0.6 31.2 12th 8.1 -1.3 2.8 7th 12.0 31.7 low 38%
Richmond RAAF 23.2 +0.3 29.8 12th 6.6 -1.4 -0.2 7th 13.6 42.8 low 32%
Illawarra (district 68)
Albion Park (Shellharbour Airport) 21.5 +0.1 29.5 12th 8.7 +0.2 3.8 7th 32.8 41.4 average 79%
Camden Airport AWS 22.5 +0.4 29.6 12th 5.7 -1.1 -0.6 7th 23.0 38.1 average 60%
Campbelltown (Mount Annan) 22.8 +0.3 29.7 12th 6.1 -1.3 0.0 7th 24.4 32.4 low 75%
High Range AWS (Wanganderry) 16.0   21.4 11th 6.1   0.2 21st 23.8
Holsworthy Defence AWS 21.6   29.4 12th 8.1   3.5 7th 37.0
Jervis Bay (Point Perpendicular) 19.2 0.0 27.2 11th 12.1 +0.1 7.6 7th 50.6 56.4 average 90%
Jervis Bay NSW (Jervis Bay Airfield AWS) 19.8   28.3 11th 10.3   3.2 7th 61.4
Kiama (Bombo Headland) 20.3 +0.1 29.4 11th 12.0 -0.1 7.5 7th 52.8 50.7 average 104%
Moss Vale AWS 17.2 +0.4 22.3 11th 5.7 +0.3 0.6 8th 28.8 36.4 average 79%
Nowra RAN Air Station AWS 21.0 -0.1 28.1 11th 8.4 -0.3 3.3 7th 45.8 41.0 average 112%
South Coast (district 69)
Bega AWS 20.9 +0.7 28.5 11th 5.4 -0.7 0.1 7th 66.4 34.4 high 193%
Braidwood Racecourse AWS 16.5 -0.1 22.0 1st 3.1 -0.1 -2.4 22nd 63.6 49.5 high 128%
Green Cape AWS 17.3 -0.4 26.6 11th 10.8 0.0 8.3 26th 59.8 37.2 high 161%
Merimbula Airport AWS 19.1 -0.3 29.1 11th 6.6 -0.2 2.7 7th 57.6 41.6 average 138%
Montague Island Lighthouse     26.2 11th 12.0 +0.6 8.9 21st 41.4 55.0 average 75%
Moruya Airport AWS 20.2 -0.1 28.8 11th 7.5 +0.6 0.7 7th 35.6 38.1 average 93%
Moruya Heads Pilot Station 19.2 +0.5 28.0 11th 9.3 +0.9 4.0 7th 33.9 58.6 average 58%
Narooma (Marine Rescue) 18.9 +0.5 28.8 11th 9.4 +0.3 5.4 7th 67.8 57.8 high 117%
Nerriga AWS 17.3   23.2 3rd 4.7   -1.1 15th 44.8
Ulladulla AWS 19.7 +0.4 28.2 11th 11.1 +0.3 7.5 8th 48.2 69.6 average 69%
Southern Tablelands (Goulburn-Monaro) (district 70)
Bombala (Therry Street) 16.8 +0.9 23.2 1st 3.0 +0.8 -3.0 27th 50.2 44.0 average 114%
Bombala AWS 15.2 -0.1 21.8 3rd 3.3 +0.5 -3.8 15th 54.8 33.8 high 162%
Canberra Airport 17.3 +0.9 22.7 2nd 3.6 +0.4 -3.0 7th 112.2 52.6 v high 213%
Cooma Airport AWS 14.8 -0.3 20.7 3rd 1.6 +0.5 -6.0 26th 52.2 36.4 high 143%
Goulburn Airport AWS 16.9 +0.3 22.7 3rd 2.2 -0.8 -2.9 14th 45.2 44.1 average 102%
Goulburn TAFE 16.6 +0.1 22.5 3rd 4.9 +0.3 -0.9 15th 36.4 47.6 average 76%
Mount Ginini AWS 8.3 -0.2 13.7 23rd 0.3 0.0 -6.4 21st
Taralga Post Office 15.8 +0.7 21.5 3rd 3.0 -0.1 -2.5 15th 56.2 61.2 average 92%
Tuggeranong (Isabella Plains) AWS 17.5 -0.2 22.8 1st 3.7 0.0 -3.2 7th 98.6 58.9 high 167%
Southern Tablelands (Snowy Mountains) (district 71)
Perisher Valley AWS 6.4 -0.5 12.3 2nd -0.7 +0.5 -8.9 14th 261.4 184.3 high 142%
Thredbo AWS 3.6 +0.3 7.7 2nd -2.2 +0.7 -9.3 26th 219.0 139.8 high 157%
Thredbo Village 9.9 0.0 16.0 3rd 0.4 +0.8 -5.5 14th
Southwest Slopes (South) (district 72)
Albury Airport AWS 18.2 +0.1 25.3 11th 6.0 +0.4 2.1 21st 92.4 55.2 high 167%
Cabramurra SMHEA AWS 8.6 -0.1 15.4 2nd 1.9 +0.1 -4.3 21st 180.2 125.0 high 144%
Hume Reservoir 18.2 +0.8 25.1 11th 7.6 +0.9 1.7 21st 110.8 61.0 high 182%
Khancoban AWS 17.3 +0.1 23.0 2nd 5.5 +1.0 0.4 14th 168.6 87.0 high 194%
Tumbarumba Post Office 16.8 +1.4 22.5 11th 3.7 +0.7 -1.0 14th 116.7 90.0 high 130%
Wagga Wagga AMO 18.1 +0.4 25.3 11th 5.0 -0.1 -0.4 22nd 45.6 48.9 average 93%
Southwest Slopes (North) (district 73)
Burrinjuck Dam 18.0 +1.2 24.0 11th 5.6 -0.1 2.4 14th 156.4 83.6 v high 187%
Cootamundra Airport 17.8 -0.5 23.5 2nd 3.2 -0.2 -1.2 26th 69.8 51.4 high 136%
Grenfell (Manganese Rd) 17.8 -0.7 24.0 2nd 4.7 -1.3 -1.4 26th 58.4 50.2 high 116%
Gundagai (Nangus Rd) 18.5 -0.1 25.6 11th 5.1 -0.1 1.2 19th 101.0 58.6 high 172%
Temora Airport 18.2 -1.3 24.6 11th 3.0 -0.5 -1.9 26th 64.4 40.8 high 158%
Young Airport 17.5 -0.5 23.0 2nd 2.5 -0.5 -1.8 7th 77.4 49.7 high 156%
Riverina (East) (district 74)
Corowa Airport 18.7 +0.2 26.0 11th     0.0 10th 59.6 47.8 high 125%
Deniliquin Airport AWS 20.6 +0.7 29.2 11th 5.6 -0.4 -1.0 26th 38.8 33.1 average 117%
Kapooka (Defence) 18.7   25.3 11th 4.6   -1.8 26th 41.4
Narrandera Airport AWS 19.9 -0.1 26.8 11th 5.7 0.0 -0.2 26th 48.8 35.1 high 139%
Tocumwal Airport 18.9 0.0 28.0 11th 5.2 -1.0 2.0 7th 65.5 39.0 high 168%
Yanco Agricultural Institute 20.0 -0.6 27.4 11th 7.3 -0.4 1.9 26th 52.2 35.1 high 149%
Riverina (West) (district 75)
Griffith Airport AWS 20.6 +0.5 27.6 2nd 5.4 -0.5 -0.4 14th 60.0 33.1 high 181%
Hay Airport AWS 21.9 +0.1 31.2 2nd 6.2 -0.2 -0.8 26th 55.6 24.3 high 229%
Hillston Airport 21.7 +0.8 30.5 2nd 6.5 -0.6 1.0 26th 84.8 28.8 v high 294%
Lake Cargelligo Airport 21.0 -0.5 28.0 2nd 6.9 -0.2 1.5 7th 67.2 31.9 high 211%
Note: From 2017, information about Lord Howe and Norfolk Islands can be found in the climate summary for the Remote Islands and Antarctica
Note: Observations for “Canberra Airport” are taken from the current site (Bureau number 070351), which opened in late 2008.
Comparisons are made against data from the previous site Canberra Airport Comparison (070014), which ran from 1939 to 2010,
combined with the current site from March 2010 onwards.

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 6 pm on Monday 4 October 2021. 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.

Further information

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