New South Wales in summer 2020-21: wet and cool

Summer 2020–21 saw above average rains across most of New South Wales, overall rainfall was 29% above average and the wettest summer since 2011-12. Daytime temperatures were below average across the state, and it was the coolest summer since 2011–12. The Northern Rivers region received very heavy rain, with flooding and coastal erosion, from low pressure systems in mid-December and late February.

Wettest summer since 2011-12

  • Summer rainfall was above average across New South Wales except in the far west of the state.
  • For the state as a whole summer rainfall was 29% above the 1961–1990 average at 215.7 mm, making it the state's wettest summer since 2011–12.
  • December saw widespread above-average rainfall totals, and it was the wettest December for the state as a whole since 2010.
  • The Northern Rivers District was affected in mid-December by a slow-moving coastal trough and weak low-pressure system.
  • Much of the north-east of the state had its wettest December since national records began in 1900.
  • January rainfall was close to average overall, but with widespread above-average totals across the south.
  • February rainfall was above average, with widespread rain from the Upper Western to Riverina districts and in northern coastal areas.
  • A Tasman Low affected northern coastal areas from 18 to 23 February, with widespread showers and heavy rain in some parts.
  • Some eastern sites had their highest summer daily rainfall on record.
  • Many sites from the Mid-North Coast to the Northern Rivers district had their highest total summer rainfall on record or their highest total for at least 20 years.

Coolest summer since 2011-12

  • The New South Wales mean temperature for summer 2020–21 was 0.03 °C above the 1961–1990 average, making it the state's coolest summer since 2011–12.
  • Daytime temperatures were below average across most of the state, and 0.19 °C below average overall.
  • Night-time temperatures were below average in the south of the state, and above average in the north and along the coast.
  • The highest recorded temperature was on the first day of summer, with Brewon AWS near Walgett reporting 48.0 °C, the second-highest temperature ever for December in New South Wales.
  • An inland trough and associated cloudband saw Cobar Airport and Bourke Airport report their coldest summer day on record on 21 December.
  • A stationary high pressure system in the Tasman Sea combined with an inland trough brought very hot air across parts of the state from 22 to 26 January.
  • Heatwave conditions in late January were severe to extreme in some regions, but no temperature records were set.

A significant rain event for the Northern Rivers district

  • A slow-moving coastal trough, with associated weak low pressure system, moved along the coast in the New South Wales and Queensland border region from 11 to 17 December.
  • The system brought widespread heavy rain to the Northern Rivers district, with damaging winds, abnormally high tides and dangerous surf conditions along the coast.
  • Flash and riverine flooding was reported for the Tweed, Clarence, Richmond/Wilsons and Bellinger rivers.
  • There was major coastal erosion at numerous beaches, most notably at Byron Bay.
  • The most intense rainfall occurred along the New South Wales and Queensland border on 12 December, with sites on either side recording daily totals of 300–450 mm.
  • Multi-day rainfall totals across the event were the highest in the area since at least April 2017.
  • Weekly rainfall totals to 9am 18 December exceeded 200 mm across the Northern Rivers, with over 400 mm in some areas.

Further information

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Extremes in summer 2020-21
Hottest day 48.0 °C at Walgett (Brewon AWS) on 1 Dec 2020
Warmest days on average 35.4 °C at Wanaaring (Borrona Downs AWS)
35.4 °C at Wanaaring Post Office
Coolest days on average 14.5 °C at Thredbo AWS
Coldest day 1.9 °C at Thredbo AWS on 6 Dec 2020
1.9 °C at Thredbo AWS on 7 Dec 2020
Coldest night -6.0 °C at Perisher Valley AWS on 11 Dec 2020
Coolest nights on average 5.2 °C at Perisher Valley AWS
Warmest nights on average 22.9 °C at Wanaaring (Borrona Downs AWS)
Warmest night 31.7 °C at Smithville AWS on 25 Jan 2021
Warmest on average overall 29.1 °C at Wanaaring (Borrona Downs AWS)
Coolest on average overall 9.9 °C at Thredbo AWS
Wettest overall 1750.4 mm at Yarras (Mount Seaview)
Wettest day 306.0 mm at Chillingham on 13 Dec 2020
Strongest wind gust 159 km/h at Montague Island Lighthouse on 22 Dec 2020

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 summer daily rainfall
New record
(mm)
Old
record
Years of
record
Coraki (Richmond Terrace) 270.0 on 16 Dec 2020 267.2 on 21 Feb 1954 126
Bulga (Down Town) 90.0 on 5 Jan 2021 88.8 on 29 Jan 2013 58
Thredbo Village 121.0 on 6 Feb 2021 95.4 on 28 Feb 2013 51
Hollisdale (Pappinbarra Rd) 175.0 on 16 Dec 2020 165.0 on 9 Feb 2020 39
Upper Manilla (Glenborah) 98.0 on 22 Dec 2020 96.4 on 7 Dec 1996 36
Wiangaree Post Office 238.0 on 19 Dec 2020 178.5 on 24 Feb 2004 36
Condobolin Airport AWS 97.6 on 29 Jan 2021 82.0 on 20 Jan 1995 28
Wellingrove (Morilla) 114.0 on 4 Dec 2020 74.8 on 11 Jan 2011 28
Cabramurra SMHEA AWS 118.2 on 6 Feb 2021 93.8 on 28 Feb 2013 26
Marrar (Waerawi) 70.0 on 29 Jan 2021 =70.0 on 3 Feb 2011 25
Baryulgil (Clarence River) 164.8 on 25 Feb 2021 120.0 on 24 Feb 2004 22
Hillview (Shoalhaven River) 92.0 on 17 Dec 2020 79.0 on 5 Feb 2001 22
Wollombi (St Johns Church) 81.4 on 14 Feb 2021 69.2 on 26 Dec 2014 21
Kings Plains (Windermere) 165.0 on 4 Dec 2020 69.6 on 26 Dec 2017 20
Lismore Airport AWS 202.8 on 17 Dec 2020 170.0 on 20 Jan 2006 20



Record highest summer total rainfall
New record
(mm)
Old
record
Years of
record
Average for
summer
Grafton Research Stn 793.0 763.3 in 1955 63 367.2
The Channon 1043.0 1014.2 in 1975 59 512.6
Krambach (Tipperary) 754.0 744.9 in 1989 44 388.2
Killawarra (Uralba) 837.5 649.0 in 1989 38 363.7
Scone Airport AWS 301.8 298.6 in 2008 27 196.5
Millbank 762.0 660.0 in 2012 25 415.9
Port Macquarie Airport AWS (Comparison) 988.8 845.2 in 2012 25 446.6
Casino Airport AWS 767.2 721.4 in 2007 24 401.7
Evans Head RAAF Bombing Range AWS 828.4 701.4 in 2019 23 426.4
Taree Airport AWS 796.5 570.0 in 2019 23 333.0
Dorrigo (Old Coramba Rd) 1508.1 1376.1 in 2007 22 760.1
McLeans Ridges (Lascott Drive) 852.1 820.0 in 2012 21 501.3
Nashua (Wilsons River) 1009.0 985.0 in 2012 21 553.0
Nimbin (Goolmangar Creek) 1107.0 862.0 in 2012 21 507.1
Rock Valley (Leycester Creek) 895.0 793.2 in 2012 21 462.9
Inverell (Elsmore Village) 370.8 330.8 in 2016 20 235.3
Narrabri Airport AWS 343.0 341.6 in 2009 20 199.5

Highest summer total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
summer
Wingham (Lanark Close) 886.4 946.3 in 1928* 368.9
South West Rocks (Smoky Cape Lighthouse) 827.2 909.2 in 1958* 438.5
Krambach (Firefly Rd) 770.9 823.0 in 1955* 373.4
Meldrum (Coolawarrah) 1163.0 1480.5 in 1958* 651.9
Murwillumbah (Bray Park) 1111.8 1154.4 in 1975* 604.3
Kunghur (The Junction) 1043.0 1122.7 in 1970* 531.7
Taylors Arm 777.0 832.6 in 1975* 476.7
Gloucester Post Office 608.4 646.1 in 1989* 340.0
Mittagong (Alfred Street) 434.8 449.4 in 1992* 257.6
Craven (Longview) 652.2 657.0 in 1989* 371.6
Manilla (Fern Hill) 441.4 456.0 in 1983* 237.2
Armidale Airport AWS 442.8 511.6 in 1997 284.4
Dora Creek (Dora St) 525.2 554.4 in 1910* 333.7
Mundarlo (Yabtree) 273.0 280.0 in 1983* 123.5
Thredbo Village 457.6 459.5 in 1995* 319.7
Oberon (Albion St) 360.9 367.4 in 1983* 216.3
Carabost 248.0 261.0 in 1988* 142.4
Coolah (Binnia St) 294.4 344.8 in 1996* 208.4
Uralla (Salisbury Court) 451.6 496.9 in 1996* 270.5

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




Record lowest summer daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
summer
Cobar Airport AWS 17.8 on 21 Dec 2020 19.2 on 14 Feb 2009 28 34.4
Bourke Airport AWS 19.0 on 21 Dec 2020 = 19.0 on 22 Dec 1999 23 36.5



Record highest summer daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
summer
Inverell Research Centre 24.2 on 2 Dec 2020 24.1 on 12 Feb 2017 57 16.0



Record lowest summer temperature
New record
(°C)
Old
record
Years of
record
Average for
summer
Deniliquin Airport AWS 4.6 on 8 Dec 2020 5.0 on 6 Dec 2013 24 15.8



Lowest summer mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
summer
Dunedoo Post Office 15.6 15.2 in 1999 16.6



Lowest summer mean temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
summer
Lake Cargelligo Airport 24.2 24.1 in 1999* 25.7

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




Summary statistics for summer 2020-21
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
summer
2020-21
Diff
from
average
Highest for
summer
2020-21
Mean for
summer
2020-21
Diff
from
average
Lowest for
summer
2020-21
Total for
summer
2020-21
Average
for
summer
Rank of
summer
2020-21
Fraction of
summer
average
Western (Far Northwest) (district 46)
Fowlers Gap AWS 33.4 -1.8 42.6 13 Jan 2021 19.4 -1.5 11.8 8 Dec 2020 48.6 76.8 average 63%
Smithville AWS 35.1   43.3 5 Dec 2020 20.7   12.0 9 Dec 2020 44.0
Tibooburra Airport 35.2 -1.3 44.4 5 Dec 2020 22.2 -0.7 14.7 8 Dec 2020 23.0 57.5 low 40%
Wanaaring (Borrona Downs AWS) 35.4   44.7 5 Dec 2020 22.9   14.6 8 Dec 2020 65.2
White Cliffs AWS 34.5 -1.5 43.2 5 Dec 2020 21.1 -1.2 12.8 8 Dec 2020 41.0 74.9 average 55%
Western (Lower Darling) (district 47)
Broken Hill Airport AWS 31.3 -1.3 41.0 13 Jan 2021 17.6 -0.9 9.5 8 Dec 2020 49.6 69.1 average 72%
Lake Victoria Storage 31.2 -0.3 41.5 24 Jan 2021 15.3 -0.9 9.0 29 Dec 2020 38.7 58.6 average 66%
Menindee Post Office 32.7 -1.1 42.6 13 Jan 2021 18.0 0.0 10.5 6 Dec 2020 66.5 66.6 average 100%
Mulurulu AWS 32.3   42.5 13 Jan 2021 17.1   9.0 9 Dec 2020 84.0
Pooncarie Mail Agency 32.9 -1.9 43.0 24 Jan 2021 17.0 -1.2 10.0 8 Dec 2020 32.5 66.7 average 49%
Western (Upper Darling) (district 48)
Bourke Airport AWS 35.1 -1.4 47.6 1 Dec 2020 21.1 -0.8 14.2 9 Dec 2020 177.6 97.1 high 183%
Brewarrina Hospital 34.5 -1.0 46.3 1 Dec 2020 20.0 -0.1 12.2 9 Dec 2020 149.9 135.7 average 110%
Cobar Airport AWS 33.1 -1.3 46.1 1 Dec 2020 19.1 -0.6 10.2 9 Dec 2020 190.0 97.6 high 195%
Cobar MO 33.0 -0.6 46.7 1 Dec 2020 19.2 -0.8 11.9 8 Dec 2020 165.2 121.0 high 137%
Lightning Ridge Visitor Information Cent 34.3 -1.0 45.8 1 Dec 2020 21.3 -0.4 13.0 9 Dec 2020 232.5 147.5 high 158%
Noona AWS 33.0   44.9 1 Dec 2020 19.9   12.2 8 Dec 2020 122.6
Wanaaring (Delta AWS) 35.0   46.9 1 Dec 2020 21.4   14.7 23 Dec 2020 148.0
Wanaaring Post Office 35.4 -0.7 45.7 1 Dec 2020 21.3 0.0 13.8 9 Dec 2020 134.3 98.1 high 137%
Western (Southwest Plains) (district 49)
Balranald (RSL) 31.2 -1.0 42.2 24 Jan 2021 15.4 -0.6 7.4 8 Dec 2020 59.8 73.4 average 81%
Euabalong (Mount Hope AWS) 31.7   43.9 1 Dec 2020 16.4   6.8 9 Dec 2020 182.8
Ivanhoe Aerodrome AWS 32.1 -2.5 41.7 23 Jan 2021 17.9 -1.8 10.4 8 Dec 2020 132.2 57.7 v high 229%
Central Western Plains (South) (district 50)
Condobolin Airport AWS 31.8 -1.5 43.6 1 Dec 2020 15.8 -2.3 6.4 9 Dec 2020 250.2 119.4 v high 210%
West Wyalong Airport AWS 31.0 -1.7 41.2 1 Dec 2020 15.5 -1.8 7.2 8 Dec 2020 232.8 127.6 v high 182%
Central Western Plains (North) (district 51)
Coonamble Airport AWS 32.7 -1.6 43.3 1 Dec 2020 18.0 -1.5 11.2 17 Jan 2021 207.0 162.3 high 128%
Girilambone (Okeh) AWS 33.1   46.2 1 Dec 2020 19.7   13.7 8 Dec 2020 249.2
Trangie Research Station AWS 32.3 -0.4 44.5 1 Dec 2020 17.5 -0.5 9.3 9 Dec 2020 251.4 146.1 high 172%
Walgett (Brewon AWS) 34.5   48.0 1 Dec 2020 19.5   10.4 9 Dec 2020 213.0
Northwest Plains (West) (district 52)
Mungindi Post Office 34.4 -0.4 45.9 1 Dec 2020 20.5 +0.4 11.6 9 Dec 2020 310.3 185.7 high 167%
Walgett Airport AWS 34.4 -0.7 46.6 1 Dec 2020 19.3 -0.6 9.4 9 Dec 2020 179.8 151.5 average 119%
Northwest Plains (East) (district 53)
Moree Aero 33.3 -0.2 43.7 2 Dec 2020 19.4 -0.2 10.4 9 Dec 2020 269.2 213.5 average 126%
Northwest Slopes (North) (district 54)
Barraba (Clifton Lane) 29.5 -1.8 41.0 2 Dec 2020 15.1 -0.7 6.1 9 Dec 2020 426.4 242.7 v high 176%
Narrabri Airport AWS 32.3 -1.7 44.4 2 Dec 2020 18.5 -1.1 10.0 17 Jan 2021 343.0 199.5 highest 172%
Northwest Slopes (South) (district 55)
Gunnedah Airport AWS 31.2 -2.3 43.7 2 Dec 2020 16.9 -0.9 7.8 9 Dec 2020 385.2 200.8 v high 192%
Quirindi Post Office 30.4 -1.4 40.8 1 Dec 2020     8.9 18 Jan 2021 322.4 225.9 high 143%
Tamworth Airport AWS 30.4 -1.5 41.8 2 Dec 2020 16.0 -0.8 7.7 17 Jan 2021 355.4 215.7 v high 165%
Woolbrook (Woolbrook Road) 25.6 -1.5 37.6 2 Dec 2020 13.3 +1.2 4.5 9 Dec 2020 378.9 275.0 high 138%
Northern Tablelands (West) (district 56)
Armidale (Tree Group Nursery) 25.0 -1.3 36.4 2 Dec 2020 12.6 +0.2 3.3 9 Dec 2020 350.8 276.3 high 127%
Armidale Airport AWS 24.2 -1.3 36.5 2 Dec 2020 12.9 -0.1 5.1 9 Dec 2020 442.8 284.4 v high 156%
Glen Innes Airport AWS 25.4 -0.6 36.2 2 Dec 2020 12.5 0.0 2.1 9 Dec 2020 368.8 295.6 high 125%
Guyra Hospital 22.6 -1.0 33.5 2 Dec 2020 11.7 0.0 4.4 9 Dec 2020 395.8 331.3 high 119%
Inverell (Raglan St) 29.3 -0.9 39.2 2 Dec 2020 15.0 +0.2 5.2 9 Dec 2020 352.6 290.2 high 122%
Inverell Research Centre 28.7 -0.3 39.6 2 Dec 2020 16.2 +0.2 8.4 9 Dec 2020 386.6 294.3 high 131%
Tenterfield (Federation Park) 25.7 -0.9 35.8 2 Dec 2020 14.2 +0.2 8.4 10 Dec 2020 322.9 311.2 average 104%
Northern Tablelands (East) (district 57)
Tabulam (Muirne) 26.6 -0.2 36.4 1 Dec 2020 17.0 +0.2 10.4 12 Dec 2020 761.6 511.6 high 149%
Upper North Coast (district 58)
Ballina Airport AWS 27.7 -0.3 32.2 22 Dec 2020 20.1 +0.9 15.7 9 Dec 2020 829.8 514.4 high 161%
Byron Bay (Cape Byron AWS) 27.8 +0.4 32.5 7 Feb 2021 21.3 +0.5 16.1 12 Dec 2020 585.2 478.1 average 122%
Casino Airport AWS 30.2 0.0 42.3 6 Dec 2020 19.1 +0.5 14.2 9 Dec 2020 767.2 401.7 highest 191%
Evans Head RAAF Bombing Range AWS 28.6 +0.3 36.5 2 Dec 2020 19.8 +0.3 15.7 9 Dec 2020 828.4 426.4 highest 194%
Grafton Airport AWS 29.1 -0.7 38.3 6 Dec 2020 18.8 +0.3 12.0 9 Dec 2020
Grafton Research Stn 29.2 -1.0 37.8 6 Dec 2020 19.4 +0.7 14.0 9 Dec 2020 793.0 367.2 highest 216%
Lismore Airport AWS 29.3 -0.6 38.6 6 Dec 2020 18.7 +0.4 13.3 9 Dec 2020 932.8 441.5 v high 211%
Murwillumbah (Bray Park) 28.8 -0.4 36.8 6 Dec 2020 20.2 +0.9 16.0 22 Jan 2021 1111.8 604.3 v high 184%
Yamba Pilot Station 27.4 +0.9 31.5 22 Dec 2020 20.7 +0.8 15.6 9 Dec 2020 640.2 416.9 high 154%
Lower North Coast (district 59)
Coffs Harbour Airport 27.1   32.1 2 Dec 2020 19.6   14.7 9 Dec 2020 1225.2
Dorrigo (Old Coramba Rd) 23.4 -0.8 31.4 2 Dec 2020 15.1 +0.3 8.1 9 Dec 2020 1508.1 760.1 highest 198%
Kempsey Airport AWS 27.7 -1.3 34.2 18 Dec 2020 17.7 +0.3 10.6 9 Dec 2020 733.0 383.1 v high 191%
Manning (district 60)
Port Macquarie Airport AWS (Comparison) 26.7 -0.8 31.9 6 Dec 2020 18.8 +0.8 9.9 9 Dec 2020 988.8 446.6 highest 221%
Port Maquarie (Port Macquarie Airport Aw 26.8   31.7 6 Dec 2020 18.7   9.6 9 Dec 2020 1043.0
Taree Airport AWS 27.0 -1.5 34.7 5 Dec 2020 18.3 +0.5 12.2 17 Jan 2021 796.5 333.0 highest 239%
Yarras (Mount Seaview) 27.5 -1.2 36.6 2 Dec 2020 17.5 +0.4 12.0 10 Dec 2020 1750.4 709.1 v high 247%
Hunter (district 61)
Cessnock Airport AWS 27.7 -2.0 38.1 26 Jan 2021 16.5 +0.1 8.8 9 Dec 2020 314.6 254.1 high 124%
Cooranbong (Lake Macquarie AWS) 26.4 -1.9 37.8 26 Jan 2021 16.9 -0.2 10.5 17 Jan 2021 481.2 334.0 high 144%
Gosford AWS 25.8   38.7 26 Jan 2021 17.8   12.2 9 Dec 2020 408.6
Maitland Airport AWS 27.9   38.0 26 Jan 2021 17.0   9.8 9 Dec 2020 369.8
Mangrove Mountain AWS 25.6 -1.3 37.3 26 Jan 2021 15.9 -0.5 10.0 9 Dec 2020 469.2 334.8 high 140%
Merriwa (Roscommon) 28.1 -2.6 40.1 1 Dec 2020 14.9 -1.0 6.5 9 Dec 2020 265.2 209.8 high 126%
Murrurundi (Haydon Street) 28.0   38.6 1 Dec 2020 15.1   5.8 9 Dec 2020 278.0
Murrurundi Gap AWS 25.1 -2.5 35.4 1 Dec 2020 14.9 -1.0 7.9 9 Dec 2020 236.0 223.1 average 106%
Nelson Bay (Nelson Head) 25.7 -1.1 30.5 28 Dec 2020 18.9 +0.3 14.2 27 Dec 2020 377.4 305.2 high 124%
Newcastle Nobbys Signal Station AWS 24.7 -0.6 35.5 26 Jan 2021 19.5 +0.6 15.1 9 Dec 2020
Norah Head AWS 25.6 -0.2 36.0 26 Jan 2021 19.3 -0.1 15.0 9 Dec 2020 390.0 270.7 high 144%
Paterson (Tocal AWS) 27.6 -1.9 37.9 26 Jan 2021 17.3 0.0 10.5 9 Dec 2020 403.0 307.3 high 131%
Scone Airport AWS 29.0 -2.0 41.2 1 Dec 2020 16.2 -0.2 8.2 9 Dec 2020 301.8 196.5 highest 154%
Singleton Defence AWS 27.7   37.1 26 Jan 2021 17.4   11.0 9 Dec 2020 335.2
Williamtown RAAF 26.9 -0.9 38.4 26 Jan 2021 18.2 +0.6 11.4 21 Jan 2021 500.8 297.0 v high 169%
Central Tablelands (North) (district 62)
Mudgee Airport AWS 28.2 -1.6 40.0 1 Dec 2020 15.0 -0.2 5.4 9 Dec 2020 235.8 210.4 average 112%
Nullo Mountain AWS 21.7 -1.6 31.1 1 Dec 2020 12.1 -0.9 5.2 8 Dec 2020 319.0 287.5 average 111%
Central Tablelands (South) (district 63)
Bathurst Airport AWS 26.9 -0.9 36.9 1 Dec 2020 12.5 -0.6 4.0 9 Dec 2020 210.6 191.6 average 110%
Lithgow (Cooerwull) 23.0 -2.3 34.4 1 Dec 2020 12.3 -0.4 3.5 9 Dec 2020 282.8 240.6 average 118%
Marrangaroo (Defence) 22.9   33.9 1 Dec 2020 11.5   3.5 9 Dec 2020 237.4
Mount Boyce AWS 22.0 -1.4 33.6 1 Dec 2020 12.1 -0.7 5.0 8 Dec 2020 409.4 340.7 high 120%
Oberon (Albion St) 24.6 +0.4 32.7 25 Jan 2021 9.6 -1.0 0.9 9 Dec 2020 360.9 216.3 v high 167%
Orange Airport AWS 24.6 -1.6 33.4 1 Dec 2020 10.9 -1.2 1.9 9 Dec 2020 297.4 231.5 high 128%
Springwood (Valley Heights) 25.8 -2.0 37.5 26 Jan 2021 15.8 -0.8 10.9 9 Dec 2020 462.8 368.3 average 126%
Central Western Slopes (North) (district 64)
Coonabarabran (Showgrounds) 29.1 -1.9 39.4 1 Dec 2020 14.9 +0.5 6.0 9 Dec 2020 380.2 242.1 high 157%
Coonabarabran Airport AWS 28.1 -2.1 38.8 1 Dec 2020 15.7 -1.6 9.4 12 Dec 2020 371.2 247.2 high 150%
Dunedoo Post Office 29.9 -1.5 42.5 1 Dec 2020 15.6 -1.0 8.3 13 Dec 2020 323.8 197.2 v high 164%
Central Western Slopes (South) (district 65)
Cowra Airport AWS 30.8 -1.5 41.3 1 Dec 2020 14.7 -1.4 6.1 9 Dec 2020 188.0 157.3 high 120%
Dubbo Airport AWS 31.2 -1.3 42.8 1 Dec 2020 16.2 -1.2 8.2 9 Dec 2020 289.0 158.5 high 182%
Forbes Airport AWS 31.5 -1.6 43.1 1 Dec 2020 15.3 -1.8 6.5 9 Dec 2020 277.8 138.0 v high 201%
Parkes Airport AWS 30.6 -1.8 42.4 1 Dec 2020 14.9 -1.7 4.7 9 Dec 2020 266.2 179.4 high 148%
Wellington (D&J Rural) 30.7 -1.5 41.9 1 Dec 2020 16.0 -0.4 6.5 9 Dec 2020 217.4 167.3 high 130%
Metropolitan (East) (district 66)
Bankstown Airport AWS 27.6 -0.4 40.5 26 Jan 2021 17.8 +0.1 12.4 21 Jan 2021
Canterbury Racecourse AWS 26.2 -1.1 39.5 26 Jan 2021 17.6 -0.3 11.8 21 Jan 2021 211.8 253.7 average 83%
Holsworthy Aerodrome AWS 26.9   39.6 26 Jan 2021 16.9   10.4 21 Jan 2021 212.0
Parramatta North (Masons Drive) 26.9 -1.2 40.0 26 Jan 2021 16.8 -0.4 11.2 21 Jan 2021 280.8 303.9 average 92%
Sydney (Observatory Hill) 26.7   37.1 26 Jan 2021 18.8   14.4 9 Dec 2020 337.4
Sydney Airport AMO 26.6 +0.2 41.6 26 Jan 2021 19.0 +0.4 15.0 9 Dec 2020 254.0 280.8 average 90%
Sydney Harbour (Wedding Cake West) 23.7 -0.7 30.9 18 Dec 2020 19.4 -0.6 16.0 8 Dec 2020
Sydney Olympic Park AWS (Archery Centre) 27.0   41.0 26 Jan 2021 18.0   12.8 9 Dec 2020 236.4
Terrey Hills AWS 24.4 -1.8 37.5 26 Jan 2021 17.2 -0.6 12.0 9 Dec 2020 464.4 313.4 high 148%
Metropolitan (West) (district 67)
Badgerys Creek AWS 28.0 -1.3 40.6 26 Jan 2021 16.3 -0.4 9.9 9 Dec 2020 256.6 238.2 average 108%
Horsley Park Equestrian Centre AWS 27.2 -2.0 39.1 26 Jan 2021 16.8 -0.5 11.0 9 Dec 2020 276.0 257.3 average 107%
Penrith Lakes AWS 28.6 -1.6 40.7 26 Jan 2021 17.4 -0.7 11.7 9 Dec 2020 289.0 277.5 average 104%
Richmond RAAF 27.9 -1.7 39.8 26 Jan 2021 17.0 -0.3 10.5 17 Jan 2021 268.6 276.4 average 97%
Illawarra (district 68)
Albion Park (Shellharbour Airport) 25.2 -1.2 39.8 26 Jan 2021 16.8 +0.3 9.9 7 Dec 2020 308.8 284.0 average 109%
Bellambi AWS 23.7 -0.9 35.0 26 Jan 2021 18.0 -0.6 13.9 8 Dec 2020 355.4 299.8 average 119%
Camden Airport AWS 27.8 -1.3 39.9 24 Jan 2021 16.3 -0.1 9.0 9 Dec 2020 227.8 242.7 average 94%
Campbelltown (Mount Annan) 27.8 -1.4 40.0 24 Jan 2021 15.9 -0.6 8.9 9 Dec 2020 236.6 236.6 average 100%
High Range AWS (Wanganderry) 22.4   34.5 24 Jan 2021 12.7   5.7 8 Dec 2020 341.4
Holsworthy Defence AWS 26.6   41.2 26 Jan 2021 16.2   10.8 21 Jan 2021 268.2
Jervis Bay (Point Perpendicular) 23.6 -0.8 34.5 26 Jan 2021 18.0 0.0 13.9 8 Dec 2020 365.6 300.9 average 122%
Jervis Bay NSW (Jervis Bay Airfield AWS) 24.0   35.7 26 Jan 2021 17.1   12.6 8 Dec 2020 342.8
Kiama (Bombo Headland) 23.6 -1.0 29.3 18 Dec 2020 18.0 -0.4 13.9 16 Jan 2021 362.4 296.3 average 122%
Moss Vale AWS 23.3 -1.8 36.3 24 Jan 2021 12.9 -0.6 5.0 9 Dec 2020 340.0 227.8 v high 149%
Nowra RAN Air Station AWS 25.7 -1.2 38.7 24 Jan 2021 16.0 -0.1 9.2 7 Dec 2020 291.2 290.9 average 100%
South Coast (district 69)
Bega AWS 25.7 -0.6 39.5 25 Jan 2021 14.2 -0.3 5.8 11 Dec 2020 179.6 200.1 average 90%
Braidwood Racecourse AWS 24.3 -1.5 37.3 25 Jan 2021 11.3 -0.5 3.0 8 Dec 2020 195.2 191.6 average 102%
Green Cape AWS 22.6 -0.6 29.0 24 Jan 2021 16.6 -0.3 11.6 8 Dec 2020 176.0 160.8 average 109%
Merimbula Airport AWS 23.9 -0.4 31.1 22 Jan 2021 14.7 -0.2 8.2 8 Dec 2020 274.4 206.8 high 133%
Montague Island Lighthouse 22.6 -0.2 31.6 26 Jan 2021 17.7 +0.5 12.8 8 Dec 2020 175.2 216.5 average 81%
Moruya Airport AWS 24.2 -0.6 34.7 26 Jan 2021 15.8 +0.4 9.2 8 Dec 2020 387.2 244.1 high 159%
Moruya Heads Pilot Station 23.1 -0.5 34.3 26 Jan 2021 16.6 +0.9 11.1 16 Jan 2021 421.7 264.8 high 159%
Narooma (Marine Rescue) 22.9 -0.3 32.2 26 Jan 2021 16.0 -0.4 10.5 8 Dec 2020 315.7 255.6 high 124%
Nerriga AWS 24.5   38.1 24 Jan 2021 12.9   6.2 8 Dec 2020 194.2
Ulladulla AWS 23.5 -0.4 36.0 26 Jan 2021 17.4 +0.3 12.2 8 Dec 2020 290.0 272.1 average 107%
Southern Tablelands (Goulburn-Monaro) (district 70)
Bombala (Therry Street) 24.1 -0.8 37.5 25 Jan 2021 10.4 +0.4 1.5 11 Dec 2020 180.6 186.5 average 97%
Bombala AWS 23.2 -1.2 37.5 25 Jan 2021 9.8 -0.4 0.7 12 Dec 2020 207.2 162.0 high 128%
Canberra Airport 26.5 -2.5 38.0 25 Jan 2021 12.2 -1.2 3.9 8 Dec 2020 172.2 188.8 average 91%
Cooma Airport AWS 24.0 -1.4 34.3 25 Jan 2021 9.0 -1.0 -0.2 9 Dec 2020 181.8 154.6 high 118%
Cooma Visitors Centre 25.0 -1.3 36.0 24 Jan 2021     0.5 11 Dec 2020 144.6 172.3 average 84%
Goulburn Airport AWS 25.4 -1.5 37.1 24 Jan 2021 11.6 -0.5 1.8 9 Dec 2020 196.8 161.3 high 122%
Goulburn TAFE 25.1 -1.8 36.8 24 Jan 2021 13.0 -0.2 5.7 9 Dec 2020 221.8 186.2 high 119%
Mount Ginini AWS 17.2 -2.2 26.6 25 Jan 2021 7.3 -1.6 -1.0 8 Dec 2020 346.8 282.3 high 123%
Taralga Post Office 23.9 -1.5 36.0 24 Jan 2021 11.2 -0.2 1.0 9 Dec 2020
Tuggeranong (Isabella Plains) AWS 26.3 -2.1 37.0 25 Jan 2021 12.9 -0.8 4.8 8 Dec 2020 248.4 197.9 high 126%
Southern Tablelands (Snowy Mountains) (district 71)
Perisher Valley AWS 16.8 -1.7 25.8 25 Jan 2021 5.2 -1.2 -6.0 11 Dec 2020 368.6 403.4 low 91%
Thredbo AWS 14.5 -1.2 23.5 25 Jan 2021 5.3 -1.1 -3.2 11 Dec 2020 427.0 315.9 high 135%
Thredbo Village 19.8 -0.9 30.0 25 Jan 2021 7.1 +0.4 -2.0 11 Dec 2020 457.6 319.7 v high 143%
Southwest Slopes (South) (district 72)
Albury Airport AWS 29.7 -1.4 40.2 25 Jan 2021 14.8 -0.9 7.2 8 Dec 2020 226.0 127.7 high 177%
Cabramurra SMHEA AWS 18.8 -1.6 28.6 24 Jan 2021 9.3 -1.4 0.7 8 Dec 2020 420.2 239.6 v high 175%
Hume Reservoir 29.5 -0.6 39.7 25 Jan 2021 15.6 -0.4 6.9 8 Dec 2020 223.6 139.1 high 161%
Khancoban AWS 29.0 -1.3 39.7 25 Jan 2021 12.2 -0.6 5.1 11 Dec 2020 224.0 191.9 high 117%
Tumbarumba Post Office 27.5 -0.5 37.5 24 Jan 2021 10.9 -0.5 3.8 9 Dec 2020 295.2 188.5 high 157%
Wagga Wagga AMO 29.6 -1.2 40.8 24 Jan 2021 15.0 -0.6 6.7 9 Dec 2020
Southwest Slopes (North) (district 73)
Burrinjuck Dam 28.4 -0.5 40.0 25 Jan 2021 15.1 0.0 8.0 9 Dec 2020 236.9 180.9 high 131%
Cootamundra Airport 28.9 -1.9 39.0 25 Jan 2021 13.7 -1.3 4.3 9 Dec 2020 204.8 150.7 high 136%
Grenfell (Manganese Rd) 29.5 -1.5 39.6 1 Dec 2020 14.6 -1.1 6.2 9 Dec 2020 228.2 155.0 high 147%
Gundagai (Nangus Rd) 29.7 -1.7 39.5 24 Jan 2021 14.6 -1.4 6.5 9 Dec 2020
Temora Airport 30.5 -1.9 41.7 1 Dec 2020 14.4 -1.8 4.8 9 Dec 2020 204.6 131.3 high 156%
Young Airport 29.2 -1.5 39.0 24 Jan 2021 12.9 -1.0 4.2 9 Dec 2020 191.6 153.1 average 125%
Riverina (East) (district 74)
Corowa Airport 30.3 -0.9 40.8 26 Jan 2021     6.4 8 Dec 2020 137.9 114.8 high 120%
Deniliquin Airport AWS 30.9 -1.2 41.8 25 Jan 2021 14.2 -1.6 4.6 8 Dec 2020 45.2 81.0 v low 56%
Kapooka (Defence) 30.2   41.0 24 Jan 2021 14.5   4.6 8 Dec 2020 236.2
Narrandera Airport AWS 31.6 -0.7 42.3 24 Jan 2021 15.5 -1.3 6.9 9 Dec 2020 138.8 107.8 high 129%
Yanco Agricultural Institute 31.8 -0.7 42.4 24 Jan 2021 16.3 -1.6 7.2 8 Dec 2020 92.2 91.7 average 101%
Riverina (West) (district 75)
Griffith Airport AWS 31.5 -0.8 41.7 25 Jan 2021 16.4 -0.4 6.8 8 Dec 2020 95.4 91.6 average 104%
Hay Airport AWS 32.4 -1.2 43.6 24 Jan 2021 15.4 -1.9 6.2 8 Dec 2020 56.0 94.0 average 60%
Hillston Airport     42.0 24 Jan 2021 17.0 -0.8 8.3 8 Dec 2020 125.4 89.1 high 141%
Lake Cargelligo Airport 31.5 -1.9 44.1 1 Dec 2020 17.4 -0.6 10.2 8 Dec 2020 206.2 112.3 high 184%
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 12 pm on Monday 1 March 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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