Western Australia in November 2020: very warm in the eastern half; wet in the north and southwest

Mean maximum and minimum temperatures were very much above average for the eastern half of Western Australia, but near average to below average in the west. The mean maximum temperature was the ninth-highest on record and mean minimum temperature was the third-highest on record for November for WA as a whole. Rainfall was above average in the state's north and south-west, with some locations near the south-west coast having their wettest November on record.

Above average rainfall in the north and southwest

  • Monthly rainfall was 35% above average for WA as a whole.
  • During the first half and the last day of November, a number of cold fronts and associated low pressure systems produced 4 periods of rain in the state's south-west; rain days were mostly between the 1st and 3rd, between the 9th and 10th, between the 13th and 15th, and the 30th.
  • For the South West Land Division (SWLD), rainfall in November 2020 was the seventh-wettest November on record, and wettest since 2012.
  • Daily rainfall of 10–40 mm was recorded in parts of the SWLD, south-west Gascoyne coast and southern Goldfields on the 2nd or the 3rd, including several highest November daily rainfall records near the SWLD coasts.
  • Thunderstorms produced showers with fall to 10–20mm in the northeastern Central Wheat Belt on the 5th.
  • Widespread daily rainfall of 10–50 mm was recorded in a large part of the SWLD (a line between Jurien Bay and Bremer Bay) on the 10th; several sites in the Lower West district had their highest November daily rainfall on record .
  • Daily rainfall was generally 10 mm or less in the SWLD between the 13th and 15th, and on the 30th.
  • Thunderstorms produced isolated daily rainfall 40–100 mm in the north and west Kimberley late in November; Broome Airport,Theda and Cygnet Bay had their highest November daily rainfall on record on the 21st or 23rd.
  • Dozens sites in the SWLD including Perth Metro had their wettest November on record, while dozens more sites had their wettest November rainfall for at least 20 years.
  • Broome Airport in the Kimberley had its wettest November rainfall in 80 years of record.

Above average daytime and night-time temperatures in the eastern half of WA

  • Western Australia mean maximum temperature was 1.79 °C above average, the ninth-highest on record for November.
  • Western Australia mean minimum temperature was 1.36 °C above average, the third-highest on record for November.
  • Mean maximum temperatures were very much above average in the eastern half of the state, with warm anomalies of 3–4 °C in the Southern Interior and eastern Eucla districts.
  • Fitzroy Crossing Aero in inland south Kimberley recorded 4 extreme hot days with temperatures over 45 °C, and the maximum of 46.5 °C on the 13th equalled its November record, as well as being the state's highest temperature of the month.
  • The first day of the month saw daytime temperatures 6–10 °C cooler than normal near the wast coast; Gingin Aero (50 km north of Perth) had its coldest November day on record
  • Daytime temperatures were 6–10 °C below average in the state's west on the 10th then contracted to south-west on the 11th; Mount Barker in the South Coastal district recorded a daily maximum of 12.0 °C on the 10th, the state's lowest maximum temperatures for 19 years since a maximum of 11.8 °C was recorded at Mount Barker on 30 November 2001.
  • Very hot days were first observed in the south-west Pilbara on the 22nd then spread to the Gascoyne and SWLD on the 23rd and 24th, before the heat contracted to southern Goldfields and the state's southeastern border on the 25th
  • For many sites across northern and eastern parts of the SWLD, the 23rd or 24th was their first 40 °C recorded since March this year; Cunderdin Airfield recorded 44.1 °C on the 24th, its highest November temperature on record.
  • Very warm nights with minimum temperatures in the low-30s were experienced in the north and east Kimberley during the second week of November; Wyndham Aero recorded 5 nights in total and 4 consecutive nights with minimum temperatures over 30 °C between 11th and 14th, its first for any month in 20 years of record.
  • Argyle Aerodrome in the east Kimberley had its highest November mean daily minimum temperature on record, comprising 5 nights in total and 3 consecutive nights with minimum temperatures over 30 °C between 11th and 13th.

Further information

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Extremes in November 2020
Hottest day 46.5 °C at Fitzroy Crossing Aero on the 13th
Warmest days on average 41.8 °C at Fitzroy Crossing Aero
Coolest days on average 19.7 °C at Shannon
Coldest day 12.0 °C at Mount Barker on the 10th
Coldest night 2.4 °C at Eyre on the 16th
Coolest nights on average 8.5 °C at Bridgetown
Warmest nights on average 28.3 °C at Troughton Island
Warmest night 31.4 °C at Argyle Aerodrome on the 12th
Warmest on average overall 34.3 °C at Fitzroy Crossing Aero
Coolest on average overall 14.6 °C at Shannon
Wettest overall 210.5 mm at Theda
Wettest day 103.5 mm at Theda on the 23rd
Strongest wind gust 111 km/h at Yampi Sound (Defence) on the 19th

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 November daily rainfall
New record
(mm)
Old
record
Years of
record
Mundaring 63.4 on the 10th 57.2 on the 15th in 1948 108
Broome Airport 71.2 on the 23rd 57.8 on the 20th in 2010 81
Dandaragan West 38.0 on the 2nd 33.8 on the 3rd in 1969 65
Wereroa 56.0 on the 10th 51.0 on the 17th in 1984 61
Gidgegannup 53.4 on the 10th 48.0 on the 8th in 1984 60
Cygnet Bay 42.5 on the 21st 41.0 on the 23rd in 2013 57
Theda 103.5 on the 23rd 85.0 on the 10th in 2004 54
Roleystone 53.6 on the 10th 42.8 on the 19th in 2009 53
Kalbarri 13.8 on the 2nd 13.2 on the 17th in 2003 51
Karragullen North 52.4 on the 10th 37.0 on the 19th in 2009 49
Gingin Aero 30.4 on the 10th 24.6 on the 4th in 2012 25
Woodridge Estate 34.5 on the 3rd 33.5 on the 4th in 2012 25
Steep Point 9.2 on the 2nd 8.0 on the 6th in 2015 24
Stokes Inlet 36.2 on the 3rd 29.8 on the 14th in 2014 24
Shannon 39.0 on the 10th 32.0 on the 6th in 2008 23
Port Denison 14.4 on the 2nd 13.6 on the 22nd in 2012 21
Mount Krauss 51.6 on the 29th 33.6 on the 26th in 2010 20
Tabletop 12.8 on the 2nd 12.6 on the 4th in 2011 20
Tenindewa 14.2 on the 2nd 10.6 on the 17th in 2003 20



Record highest November total rainfall
New record
(mm)
Old
record
Years of
record
Average for
November
Marradong 83.6 71.2 in 1992 122 23.2
Mundaring 142.2 118.9 in 1946 117 33.4
Serpentine 91.8 81.3 in 1946 98 24.7
Margaret River 114.6 109.4 in 1984 92 41.7
Bonnie Rock 68.9 60.2 in 1981 83 13.0
Broome Airport 74.6 57.8 in 2010 81 9.7
Perth Airport 89.0 84.8 in 2012 77 26.3
Marriwood 106.9 92.2 in 1984 64 33.1
Gidgegannup 137.8 85.0 in 1983 59 27.4
Gosnells City 100.2 93.4 in 1992 58 29.7
Roleystone 132.2 90.0 in 1984 53 36.6
Bickley 169.4 128.6 in 2012 51 43.1
Esperance 95.8 88.0 in 1991 51 35.0
Mount Howick 99.4 97.6 in 2003 51 33.3
Karragullen North 142.8 115.6 in 2012 49 39.6
Jandakot Aero 81.4 78.6 in 2008 47 28.3
Jarrahwood 100.0 97.2 in 1984 46 42.0
Lake Nammen 72.4 66.2 in 1991 44 20.1
The Duke 101.2 96.4 in 2012 43 37.5
Windy Harbour 102.7 95.0 in 2008 34 42.8
Huntly 133.3 122.2 in 2012 29 49.8
Rottnest Island 54.4 52.0 in 1999 29 19.5
Perth Metro 92.0 58.2 in 2012 28 24.2
Ludlow 76.2 67.2 in 2012 25 27.2
Busselton Aero 90.2 51.0 in 2011 24 24.3
Bridgetown 89.4 67.2 in 2008 23 31.1
Steep Point 12.6 9.0 in 2015 23 1.8
Woodridge Estate 105.0 47.5 in 2012 23 18.7
Wandering 64.6 60.8 in 2012 22 20.6
Acton Park 82.6 72.0 in 2012 21 33.3
Toodyay East 48.8 44.6 in 2012 21 16.5
Mandurah 63.4 57.2 in 2012 20 24.0
Mount Krauss 99.0 67.8 in 2010 20 29.2
Pinjarra South 91.0 68.2 in 2011 20 27.7
Quadney 48.4 45.4 in 2012 20 16.1
Tabletop 36.2 23.4 in 2012 20 10.2

Highest November total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
November
Chidlow 104.9 117.6 in 1946* 26.3
Oake Marsh Farm 78.2 133.3 in 1959* 32.3
Adina 91.4 115.0 in 1971 41.4
Muresk Institute 49.0 55.9 in 1946* 12.3
Telina Downs 76.4 90.6 in 1971* 35.6
Cowaramup 88.5 104.4 in 1981 42.0
Donnybrook 98.0 120.0 in 1981 33.2
Busselton Shire 74.4 81.1 in 1981* 24.7
Esperance Aero 74.0 75.4 in 1983* 37.3
Ferguson Valley 98.8 105.0 in 1984 39.4
Kojonup 87.2 91.4 in 1984 24.2
Mount Hart Station 160.6 239.9 in 1973* 55.6
Erinair 76.6 94.4 in 1985 34.8
Geraldton Town 40.6 49.7 in 1971* 8.1
New Norcia 51.4 52.0 in 1983* 14.9
Wanneroo 72.8 76.4 in 1984* 21.6
Jarrahdale 116.2 129.4 in 1984* 35.4
Bidyadanga 13.4 20.3 in 1988 7.5
Chapman Hill 79.8 121.4 in 1984* 28.3
Wokalup 89.6 123.8 in 1984* 36.2
Dalyup Park 71.0 84.8 in 1987* 29.7
Kimbolton 111.0 132.6 in 1975* 34.4
Perivale Orchard 88.0 97.7 in 1984* 36.5
Lancelin 66.4 69.4 in 1991 20.6
Aldervale 60.8 110.0 in 1992 25.9
Burekup 72.4 103.5 in 1992 30.2
Rosa Brook 83.9 116.5 in 1992 35.7
Wannamal 57.8 59.8 in 1992 17.4
Ekamurra 87.4 103.8 in 1992* 37.1
Greenbushes 69.6 101.2 in 1992* 34.6
Newbicup 58.4 97.4 in 1992* 26.6
Pingelly 44.4 45.8 in 1993 15.5
Tamala 21.8 48.7 in 1993 3.1
Useless Loop 20.4 27.4 in 1993 4.0
Northampton 39.4 41.2 in 1996 10.0
York 51.2 54.0 in 1996 15.6
Bolgart 43.0 62.6 in 1996* 13.7
Eurardy 21.6 =21.6 in 1996* 7.7
Redlands 52.8 62.8 in 1996* 15.1
Riverside 29.7 32.2 in 1996* 6.3
Beria 61.7 76.5 in 1999* 13.4

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




Record highest November temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Derby Aero 44.6 on the 4th = 44.6 on the 13th in 2004 36 38.2
Mount Elizabeth 41.5 on the 4th = 41.5 on the 30th in 2009 27 36.2
Cunderdin Airfield 44.1 on the 24th 43.9 on the 17th in 2019 25 30.3
Fitzroy Crossing Aero 46.5 on the 13th = 46.5 on the 22nd in 2019 24 40.9



Record lowest November daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Gingin Aero 17.9 on the 1st 18.3 on the 6th in 2008 25 28.2
North Island 20.2 on the 1st 20.5 on the 18th in 2004 21 25.4



Record highest November mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Carnegie 38.9 37.6 in 2006 31 35.6

Highest November mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
November
Eucla 28.8 33.4 in 1966* 24.2

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




Record highest November daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Carnegie 29.4 on the 28th 29.0 on the 7th in 2014 32 19.4
Warburton Airfield 29.4 on the 18th 29.1 on the 6th in 2013 31 18.8
Murchison 28.0 on the 24th 26.3 on the 25th in 1990 30 16.8
Mount Elizabeth 26.4 on the 13th 26.2 on the 30th in 2016 27 21.7



Record highest November mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Warburton Airfield 22.6 22.4 in 2015 44 18.8
Carnegie 22.0 = 22.0 in 2006 31 19.4
Forrest 15.2 15.0 in 2015 27 13.1
Argyle Aerodrome 27.6 27.2 in 2006 26 26.2

Highest November mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
November
Eucla 15.2 17.5 in 1966* 13.5

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




Record lowest November mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Windy Harbour 9.7 10.2 in 2018 31 11.8



Record highest November mean temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Warburton Airfield 30.3 = 30.3 in 2006 44 26.7
Carnegie 30.5 29.8 in 2006 31 27.5
Forrest 24.2 23.9 in 2006 27 21.5
Argyle Aerodrome 34.1 34.0 in 2019 26 32.5

Highest November mean temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
November
Eucla 22.0 25.5 in 1966* 18.8
Warmun 33.4 =33.4 in 1992 32.1

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




Summary statistics for November 2020
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
November
2020
Diff
from
average
Highest for
November
2020
Mean for
November
2020
Diff
from
average
Lowest for
November
2020
Total for
November
2020
Average
for
November
Rank of
November
2020
Fraction of
November
average
North Kimberley (district 01)
Doongan 36.5 -0.2 41.0 12th 23.2 +0.3 19.5 23rd 35.1 104.6 v low 34%
Kalumburu 38.0 +0.7 41.1 3rd 25.2 +0.5 20.1 17th 135.4 80.6 v high 168%
Mount Elizabeth 37.1 +0.9 41.5 4th 22.8 +1.1 19.3 28th 169.0 79.9 v high 212%
Troughton Island 33.7 +0.7 34.5 12th 28.3 +0.8 24.3 27th 24.4 11.1 high 220%
Truscott 35.3 +0.1 39.1 3rd 26.4 +0.2 22.8 23rd 153.0 34.2 v high 447%
Wyndham Aero 40.7 +0.7 44.7 12th 27.8 +1.2 23.2 18th 39.2 55.1 average 71%
East Kimberley (district 02)
Argyle Aerodrome 40.5 +1.6 44.3 12th 27.6 +1.4 22.9 25th 63.8 60.9 average 105%
Halls Creek Airport 39.6   44.3 14th 25.9   21.2 7th 55.0
Kununurra Aero 39.9 +0.8 43.3 12th 25.5 +0.4 22.1 8th 34.0 58.5 average 58%
Warmun 40.5 +1.2 44.5 14th 26.3 +1.4 22.5 23rd 71.5 60.4 high 118%
West Kimberley (district 03)
Bidyadanga 36.9 +1.9 44.5 5th 24.6 +0.5 22.0 2nd 13.4 7.5 v high 179%
Broome Airport 34.6 +0.9 41.2 5th 26.4 +1.2 23.4 11th 74.6 9.7 highest 769%
Curtin Aero 40.4 +0.4 44.6 4th 25.0 +0.8 21.7 10th 35.8 21.3 high 168%
Cygnet Bay 34.4 -0.9 36.2 3rd 25.1 +1.0 23.0 10th 42.9 6.1 v high 703%
Derby Aero 38.9 +0.7 44.6 4th 26.7 +1.1 22.8 21st 39.8 12.7 v high 313%
Fitzroy Crossing Aero 41.8 +0.9 46.5 13th 26.8 +1.3 23.3 30th 39.0 30.9 average 126%
Yampi Sound (Defence) 39.8   44.7 4th 25.2   21.8 20th 70.8
De Grey (district 04)
Bedout Island 31.8 -1.1 33.2 25th 26.0 -0.2 24.0 3rd
Karratha Aero 34.9 -0.2 41.2 17th 23.9 +0.8 21.0 11th 0 1.3 lowest 0%
Legendre Island 30.6 -1.1 33.1 30th 24.6 0.0 22.3 10th
Mandora 37.7 +1.0 44.7 5th 23.6 +1.7 19.0 16th 26.4 6.4 v high 413%
Pardoo Station 38.3 +1.4 43.5 13th       0 3.2 lowest 0%
Port Hedland Airport 37.7 +1.4 43.9 5th 23.6 +2.1 19.5 9th 0 2.5 lowest 0%
Roebourne Aero 38.9 0.0 44.2 17th 22.7 +0.3 19.2 4th 0 2.2 lowest 0%
Fortescue (district 05)
Barrow Island Airport 31.0 +0.4 35.9 24th 23.2 +0.2 21.0 11th 0 1.5 lowest 0%
Karijini North 39.7   42.7 17th 24.2   19.2 3rd 4.6
Learmonth Airport 35.5 +0.9 42.8 22nd 18.6 +0.1 15.2 9th 0.2 1.7 high 12%
Mardie 36.1 -0.3 43.0 22nd 21.2 +1.0 17.1 11th 0 1.4 lowest 0%
Onslow Airport 35.1 +0.7 44.0 22nd 21.5 +1.4 17.9 11th 0 2.6 lowest 0%
Thevenard Island 31.9 +1.1 39.3 22nd 22.6 +0.5 19.6 11th 0.6 1.3 high 46%
West Gascoyne (district 06)
Carnarvon Airport 28.0 +0.3 36.1 23rd 19.3 +0.6 15.4 11th 1.0 3.8 average 26%
Denham 26.6 -1.2 33.2 23rd 18.4 -0.4 14.5 11th 11.8 3.1 v high 381%
Murchison 33.8 -0.5 43.0 23rd 17.2 +0.4 12.0 10th 3.9 6.9 average 57%
Shark Bay Airport 29.1 -1.4 40.8 23rd 17.6 -0.1 12.8 12th 8.8 2.4 v high 367%
East Gascoyne (district 07)
Newman Aero 38.9 +1.3 42.2 22nd 22.5 +1.4 16.7 11th 6.8 12.4 average 55%
Paraburdoo Aero 38.8 +0.3 43.2 22nd 21.5 0.0 14.4 11th 19.2 8.4 high 229%
Murchison (district 07A)
Meekatharra Airport 35.1 +1.7 41.9 26th 20.1 +1.3 13.2 11th 10.2 11.8 average 86%
Mount Magnet Aero 33.4 +0.5 41.7 24th 17.8 -0.3 12.3 10th 2.6 11.3 low 23%
Paynes Find 31.4 -0.5 42.2 24th 15.3 -0.2 9.2 12th 12.6 11.4 average 111%
North Coast (district 08)
Dalwallinu 28.3 -2.3 42.4 24th 12.5 -0.6 6.4 11th 32.4 11.3 v high 287%
Geraldton Airport 26.8   40.3 23rd 14.9   9.2 16th 43.8
Kalbarri 27.7 -0.7 40.2 23rd 15.4 +0.3 10.3 12th 19.4 7.0 v high 277%
Morawa Airport 30.5 -1.8 43.8 24th 13.2 -1.4 8.3 16th 10.6 10.5 average 101%
Mullewa 30.3 -0.9 43.0 24th 13.9 -0.6 9.4 12th 15.7 8.8 high 178%
North Island 24.8 -0.6 28.4 23rd 18.5 -0.1 14.2 12th 31.6 7.7 v high 410%
Wongan Hills 27.9 -1.4 42.0 24th 12.5 -0.7 7.0 11th 34.6 12.5 v high 277%
Central Coast (district 09)
Badgingarra Research Stn 26.8 -1.7 39.2 24th 12.6 +0.2 7.4 16th 0 18.1 lowest 0%
Bickley 22.1 -3.0 33.5 24th 11.2 -0.7 7.5 10th 169.4 43.1 highest 393%
Garden Island HSF 22.4 -1.4 30.1 6th 15.4 -0.3 10.4 12th 57.0 21.9 v high 260%
Gingin Aero 25.8 -2.4 36.9 23rd 11.1 -0.9 4.2 12th 51.6 19.4 v high 266%
Gosnells City 25.3 -2.4 36.0 23rd 13.7 -0.8 8.1 12th 100.2 29.7 highest 337%
Jandakot Aero 24.3 -2.2 34.7 23rd 12.5 -0.2 6.0 12th 81.4 28.3 highest 288%
Jurien Bay 24.9 -1.1 35.0 23rd 14.5 +0.9 8.3 12th 53.4 17.9 v high 298%
Karnet     33.2 23rd 11.0 -0.4 6.3 12th        
Lancelin 23.6 -1.3 32.6 6th 14.2 0.0 7.8 10th 66.4 20.6 v high 322%
Millendon (Swan Valley) 25.6   36.4 24th 12.3   6.6 12th 102.2
Pearce RAAF 25.8 -1.6 36.4 23rd 12.8 +0.2 7.2 12th
Perth Airport 25.0 -1.1 36.1 23rd 12.5 -0.3 7.4 12th 89.0 26.3 highest 338%
Perth Metro 24.7 -2.1 35.1 23rd 13.5 -0.9 8.0 12th 92.0 24.2 highest 380%
Rottnest Island 22.0 -1.1 27.7 6th 15.5 -0.5 11.3 10th 54.4 19.5 highest 279%
Swanbourne 23.2 -2.2 32.6 23rd 14.4 -0.4 10.3 12th
South Coast (district 09A)
Albany     28.0 24th 12.7 +0.2 9.4 29th 85.4 44.8 v high 191%
Albany Airport 21.4   31.1 24th 10.3   5.4 29th 83.2
Bridgetown 22.0 -2.4 32.1 23rd 8.5 -0.8 4.9 4th 89.4 31.1 highest 287%
Busselton Aero 22.7 -2.4 31.0 23rd 10.4 -0.3 5.8 28th 90.2 24.3 highest 371%
Cape Leeuwin 20.4 +0.2 24.3 23rd 14.3 +0.1 10.6 30th 50.8 36.2 high 140%
Cape Naturaliste 21.8 +0.3 30.4 23rd 12.7 +0.2 8.7 10th 61.2 25.7 v high 238%
Collie East 23.1 -2.5 33.7 23rd 9.1 -0.8 4.6 28th 55.2 27.1 high 204%
Donnybrook 23.4 -1.5 33.3 23rd       98.0 33.2 v high 295%
Dwellingup 22.4 -1.4 33.0 23rd 10.6 +0.1 5.6 12th 118.6 46.2 v high 257%
Esperance 23.9 +0.7 40.5 24th 13.3 +0.5 9.4 29th 95.8 35.0 highest 274%
Esperance Aero 24.6 +0.3 39.9 24th 12.1 +0.2 8.7 29th 74.0 37.3 v high 198%
Hopetoun North 23.5 +0.3 42.4 24th 12.2 -0.2 7.8 5th 16.0 32.9 low 49%
Jarrahwood 22.5 -1.5 33.0 23rd 9.0 -0.5 4.5 4th 100.0 42.0 highest 238%
Mandurah 23.1 -1.8 32.5 23rd 15.2 -0.4 11.4 10th 63.4 24.0 highest 264%
Manjimup 21.3 -0.8 32.0 23rd 9.6 -0.5 6.6 10th 74.2 45.7 high 162%
North Walpole 19.9 -1.1 28.4 23rd 10.9 -0.8 7.2 29th 92.6 55.8 high 166%
Rocky Gully 21.3 -1.8 31.9 23rd 9.1 -0.7 5.7 28th 83.6 39.0 v high 214%
Shannon 19.7 -2.8 29.4 23rd 9.4 -0.8 6.1 29th 107.8 48.8 v high 221%
Windy Harbour 20.6 -0.3 27.5 23rd 9.7 -2.1 7.4 19th 102.7 42.8 highest 240%
Witchcliffe 21.5 -1.3 30.2 23rd 10.5 -0.4 6.9 29th 80.0 34.7 v high 231%
North Central (district 10)
Bencubbin 27.9 -1.2 40.5 24th 12.9 -0.3 6.6 11th 34.4 13.5 v high 255%
Cunderdin Airfield 28.7 -1.6 44.1 24th 11.0 -1.4 3.4 12th 21.8 14.7 high 148%
Merredin 27.8 -1.0 41.3 24th 13.0 -0.3 6.5 11th 48.2 14.9 v high 323%
Northam 27.1 -1.5 41.7 24th 12.0 -0.5 6.1 11th 46.7 12.5 v high 374%
York 27.1 -2.4 41.6 24th 10.4 -0.8 3.9 11th 51.2 15.6 v high 328%
South Central (district 10A)
Beverley 27.4 -1.4 40.5 24th 10.8 -0.8 4.6 11th 40.8 15.0 v high 272%
Brookton 26.1 -1.6 39.4 24th 10.7 -0.4 4.2 11th 43.6 14.7 v high 297%
Corrigin 27.1 -0.1 40.5 24th 11.1 -0.3 4.5 11th 21.2 16.5 average 128%
Hyden 28.0 -0.6 42.0 24th 11.3 -0.2 5.0 11th 22.0 19.4 average 113%
Jacup 24.8 0.0 40.9 24th 9.6 -0.2 3.7 12th 46.2 29.5 high 157%
Katanning 24.5 -1.7 38.3 24th 9.9 -0.2 5.9 11th 53.2 23.9 v high 223%
Narembeen 27.7 -1.0 37.0 26th     7.9 11th 40.0 16.8 high 238%
Narrogin 24.7 -1.0 37.8 24th 10.7 +0.5 4.8 11th 46.0 18.4 v high 250%
Newdegate Research Station 26.5 -1.0 41.0 24th 9.9 -0.1 4.3 12th 26.8 21.5 high 125%
Ravensthorpe 25.2 +0.1 40.8 24th 11.4 +0.3 6.0 12th 51.0 30.6 high 167%
Wagin     37.3 24th 10.6 -0.1 6.7 11th 24.8 17.9 high 139%
Wandering 24.9 -2.6 37.3 24th 9.1 -0.4 3.3 11th 64.6 20.6 highest 314%
Eucla (district 11)
Balladonia 28.4 +0.4 38.6 20th 12.3 +0.9 6.7 25th 39.6 23.8 high 166%
Eucla 28.8 +4.6 40.9 2nd 15.2 +1.7 8.0 16th 9.8 18.6 average 53%
Eyre 26.5 +2.0 39.8 1st 12.9 +0.8 2.4 16th 24.2 21.1 high 115%
Forrest 33.1 +3.1 44.8 27th 15.2 +2.1 9.1 16th 19.6 22.1 average 89%
Red Rocks Point 27.5 +3.9 37.5 17th 15.2 +0.6 8.9 16th
South East (district 12)
Bulga Downs 34.0 +0.8 41.5 26th 17.5 +0.1 10.2 12th 12.4 11.1 average 112%
Kalgoorlie-Boulder Airport 30.0 +0.9 39.3 24th 14.9 +0.7 9.2 11th 32.6 18.9 high 172%
Laverton Aero 34.8 +3.3 41.5 27th 19.0 +1.7 10.1 11th 3.4 19.1 v low 18%
Leinster Aero 35.1 +2.3 41.7 26th 19.8 +1.5 12.3 11th 0 15.7 lowest 0%
Leonora Aero 34.4 +1.7 42.3 25th 18.6 +0.4 10.8 11th 4.2 20.5 low 20%
Munglinup West 25.2 -0.8 40.9 24th 10.6 -0.7 6.4 12th 40.8 30.1 high 136%
Norseman Aero 28.5 -0.3 40.4 24th 12.2 0.0 5.6 12th 42.8 28.5 high 150%
Salmon Gums Res.Stn. 27.2 +0.8 40.1 24th 10.5 +0.4 3.8 29th 50.4 26.6 high 189%
Southern Cross Airfield 28.7 -1.4 41.3 24th 12.9 -0.4 6.6 11th 37.4 17.5 high 214%
North East (district 13)
Carnegie 38.9 +3.3 43.5 17th 22.0 +2.6 15.9 13th 3.4 12.6 average 27%
Giles Meteorological Office 37.1 +2.7 42.7 28th 23.3 +3.3 18.5 7th 8.0 27.8 average 29%
Telfer Aero 40.8 +1.3 44.0 13th 26.9 +3.3 23.1 2nd
Warburton Airfield 38.1 +3.6 43.2 27th 22.6 +3.8 16.9 11th 10.0 24.0 average 42%
Wiluna Aero 36.7   42.0 17th 20.4   13.3 11th 15.0
Offshore Islands (district 200)
Adele Island 31.9   33.5 26th 27.6   26.0 21st
Rowley Shoals 29.2   32.6 24th 26.9   25.7 1st
Varanus Island 29.8 -0.3 32.9 21st 23.6 0.0 21.4 11th 0 0.6 lowest 0%

Notes

The Monthly climate summary, generally published on the first working day of each month, lists the main features of the weather in Western Australia 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 Tuesday 1 December 2020. 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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