Western Australia in November 2018: wet in central and southeast

Rainfall was above average across a broad area from the east Gascoyne, through central to southeast Western Australia, while rainfall was either below average or close to average near the west coast and for most of the South West Land Division. Mean maximum temperatures were above average in the Kimberley and surroundings, while most of the State's southwest quadrant, and the west Pilbara coast had cooler than normal mean maxima. Mean minimum temperatures were above average for much of the eastern half of WA, with below average mean minima confined to the far southwest.

Wet across the central and southeast WA

  • Rainfall was above average and the wettest since 2014 for the State as a whole; it was the wettest November since 2015 for the South West Land Division (SWLD)
  • A developing trough produced thunderstorms with moderate to heavy rainfall across inland WA from the Gascoyne, eastern SWLD to Goldfields on the 10th and 11th; a number of November daily rainfall records were broken as a result
  • Allan Rocks in the Central Wheat Belt reported a November record of 107 mm on the 11th, which is also its third-highest all-time daily total, behind 117.1 mm on 17 February 1970 and 110.0 mm on 8 February 1996
  • A number of sites in inland Gascoyne and Goldfields had their wettest November on record , or wettest November for at least 20 years due to thunderstorms
  • Perth Metro, and a number of sites near the west coast and in the north had either their driest November on record or driest November for at least 20 years

Above average temperatures in the Kimberley

  • For WA as a whole, mean maximum and minimum temperatures were above average though it was the coolest November since 2011
  • For the SWLD as a whole, the mean maximum temperature was close to average whilst the mean minimum temperature was slightly below average, but both was the coolest November since 2008
  • In terms of mean maximum temperature, Kalumburu in the Kimberley had its warmest November on record, whilst Swanbourne and Rottnest Island in the Perth area had its mildest November on record
  • In terms of mean minimum temperature, Cygnet Bay and Doongan in the Kimberley had their warmest November on record, while Jarrahwood and Shannon in the southwest had their coolest November on record
  • Light winds and clear skies in the wake of cold southerly winds had several sites in the southwest recorded their lowest November temperature on the 7th

Grain crops lost by fires

  • Fires sparked by lightning destroyed grain crops in Dalwallinu Shire on the 16th, with an estimated $3.6 million damage bill

Further information

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Extremes in November 2018
Hottest day 45.7 °C at Roebourne Aero on the 18th
Warmest days on average 42.0 °C at Fitzroy Crossing Aero
Coolest days on average 18.7 °C at Albany
Coldest day 14.0 °C at Mount Barker on the 19th
Coldest night -1.5 °C at Jarrahwood on the 7th
Coolest nights on average 7.2 °C at Bridgetown
7.2 °C at Jarrahwood
Warmest nights on average 27.7 °C at Troughton Island
27.5 °C at Wyndham Aero
Warmest night 32.2 °C at Marble Bar on the 16th
Warmest on average overall 34.1 °C at Fitzroy Crossing Aero
34.1 °C at Wyndham Aero
Coolest on average overall 14.0 °C at Shannon
Wettest overall 133.1 mm at Lake Argyle Resort
Wettest day 107.0 mm at Allan Rocks on the 11th
Strongest wind gust 113 km/h at Paraburdoo Aero on the 14th

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
Cue 53.8 on the 11th 39.9 on the 26th in 1965 117
Ninghan Station 51.0 on the 11th 40.9 on the 24th in 1920 102
Pullagaroo 38.6 on the 11th 28.7 on the 6th in 1931 88
Gindalbie 32.0 on the 11th =32.0 on the 13th in 2014 67
Allan Rocks 107.0 on the 11th 87.6 on the 10th in 1971 50
Karara 37.0 on the 11th 25.6 on the 4th in 2011 40
Beaumont West 37.0 on the 11th 35.4 on the 13th in 1983 37



Record highest November total rainfall
New record
(mm)
Old
record
Years of
record
Average for
November
Bulong 100.4 97.0 in 2012 121 17.1
Ninghan Station 51.0 43.6 in 1937 109 10.5
Pullagaroo 46.8 39.6 in 1931 88 7.6

Highest November total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
November
Cue 88.1 89.5 in 1965 9.5
Kalgoorlie-Boulder Airport 62.0 115.4 in 1981 18.9
Mileura 35.5 95.0 in 1983* 7.0
Pardoo Station 9.0 11.9 in 1988* 3.2
Gabyon 26.0 35.5 in 1997* 6.7

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




Record lowest November total rainfall
New record
(mm)
Old
record
Years of
record
Average for
November
Doongan 25.3 36.4 in 2000 31 109.7
Perth Metro 3.2 4.4 in 1999 26 21.8
Kalumburu 2.6 19.4 in 2008 21 81.8

Lowest November total rainfall for at least 20 years
Observed
(mm)
Most recent
lower
Average for
November
Wyndham 15.2 3.4 in 1984* 56.4
Wyndham Aero 5.4 4.5 in 1967* 56.9
Rottnest Island 3.2 2.2 in 1994 18.8
Lake Nammen 0.4 0.0 in 1989* 19.2
Mount House Station 9.8 7.0 in 1993* 38.9

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




Record lowest November daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Varanus Island 25.8 on the 29th = 25.8 on the 2nd in 2003 20 30.1



Record highest November mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Kalumburu 38.9 38.3 in 2000 20 37.1



Record lowest November mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Rottnest Island 21.1 = 21.1 in 2005 28 23.2
Swanbourne 22.7 22.8 in 2008 25 25.5



Record lowest November temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Salmon Gums Res.Stn. -1.2 on the 7th -1.1 on the 13th in 1958 80 10.1
Ongerup 0.3 on the 7th 0.5 on the 20th in 1992 51 10.6
Jarrahwood -1.5 on the 7th -0.5 on the 2nd in 2005 38 9.6
Jacup 0.0 on the 7th 0.9 on the 2nd in 2005 26 9.9
Newdegate Research Station -0.7 on the 7th 0.0 on the 2nd in 2005 23 10.0
Busselton Aero 0.9 on the 7th 1.0 on the 2nd in 2005 22 10.8
Lake Grace 3.2 on the 7th 3.7 on the 2nd in 2005 22 12.0
Bridgetown -0.8 on the 7th -0.3 on the 2nd in 2005 20 9.4



Record highest November mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Cygnet Bay 25.8 25.7 in 2016 33 24.1
Doongan 24.0 = 24.0 in 2008 27 22.9



Record lowest November mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Jarrahwood 7.2 7.6 in 2002 37 9.6
Shannon 8.4 = 8.4 in 2005 20 10.3

Lowest November mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
November
Brookton 9.9 9.6 in 1997 11.1



Record highest November mean temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Kalumburu 32.1 32.0 in 2008 20 30.9



Record lowest November mean temperature
New record
(°C)
Old
record
Years of
record
Average for
November
Shannon 14.0 14.1 in 2005 20 16.4



Summary statistics for November 2018
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
November
2018
Diff
from
average
Highest for
November
2018
Mean for
November
2018
Diff
from
average
Lowest for
November
2018
Total for
November
2018
Average
for
November
Rank of
November
2018
Fraction of
November
average
North Kimberley (district 01)
Doongan 36.9 +0.3 39.0 12th 24.0 +1.1 21.0 19th 25.3 109.7 lowest 23%
Kalumburu 38.9 +1.8 41.6 10th 25.2 +0.5 23.3 1st 2.6 81.8 lowest 3%
Troughton Island 33.1 +0.1 34.7 2nd 27.7 +0.2 23.0 4th 18.2 11.0 high 165%
Truscott 34.9 -0.3 37.1 10th 26.8 +0.7 24.0 19th 28.0 28.6 average 98%
Wyndham Aero 40.7 +0.9 42.5 10th 27.5 +0.9 23.4 28th 5.4 56.9 v low 9%
East Kimberley (district 02)
Argyle Aerodrome 39.7 +1.0 42.1 12th 27.1 +0.9 21.9 17th 74.0 61.0 average 121%
Halls Creek Airport 39.1   42.3 15th 24.9   19.3 10th 66.0
Kununurra Aero 39.4 +0.4 42.7 2nd 25.2 0.0 22.8 3rd 123.4 60.0 high 206%
Warmun 38.6 -0.7 40.4 14th 24.3 -0.7 20.1 11th 44.8 60.8 average 74%
West Kimberley (district 03)
Broome Airport 32.8 -0.9 35.7 15th 26.2 +1.0 23.5 16th 4.2 9.0 average 47%
Curtin Aero 40.2 +0.3 43.1 15th 23.7 -0.5 19.6 22nd 1.6 21.0 low 8%
Cygnet Bay       25.8 +1.7 23.5 1st 0 5.5 lowest 0%
Fitzroy Crossing Aero 42.0 +1.2 45.2 14th 26.2 +0.7 21.0 18th 31.2 31.1 average 100%
De Grey (district 04)
Bedout Island 31.5 -1.5 35.8 17th 25.2 -1.1 23.6 29th
Karratha Aero 34.4 -0.6 42.6 18th 22.8 -0.3 20.0 28th 2.8 1.4 high 200%
Legendre Island 30.4   35.5 15th 23.8   21.6 23rd
Mandora 36.0 -0.6 44.8 16th 22.7 +0.8 18.8 7th 1.4 6.3 high 22%
Marble Bar 41.1 +0.4 44.4 18th 24.4 +0.3 20.0 24th 8.4 9.0 average 93%
Port Hedland Airport 36.2 -0.1 44.1 18th 22.6 +1.1 19.9 7th 0 2.5 lowest 0%
Roebourne Aero 38.4 -0.4 45.7 18th 22.5 +0.1 18.6 13th 0 2.5 v low 0%
Fortescue (district 05)
Barrow Island Airport 29.4 -1.2 34.9 17th 22.2 -0.8 20.3 14th 3.0 1.6 v high 188%
Karijini North 39.0   41.9 19th 23.7   17.7 25th 0
Learmonth Airport 33.5 -1.1 40.7 17th 17.8 -0.7 15.5 6th 0 1.8 lowest 0%
Mardie 34.9 -1.5 42.6 18th 20.4 +0.2 17.9 7th 0 1.5 lowest 0%
Onslow Airport 33.8 -0.6 41.4 18th 20.1 0.0 18.0 23rd 0.6 2.7 high 22%
Thevenard Island 29.6 -1.1 34.4 7th 21.3 -0.8 19.3 27th 1.0 1.4 high 71%
Wittenoom 39.0 +0.9 42.4 18th 24.1 +0.5 19.1 25th 0 9.5 lowest 0%
West Gascoyne (district 06)
Carnarvon Airport 27.5 -0.2 40.8 14th 18.5 -0.2 14.9 7th 0 3.9 lowest 0%
Denham 26.1 -1.7 35.2 14th 18.3 -0.4 13.0 7th 0 3.0 lowest 0%
Murchison 33.1 -1.1 41.4 15th 16.6 -0.1 11.5 6th 4.4 7.2 average 61%
Shark Bay Airport 28.7 -1.7 40.7 14th 16.9 -0.8 12.8 7th 0 2.1 v low 0%
East Gascoyne (district 07)
Newman Aero 37.7 +0.2 41.8 29th 22.2 +1.2 17.3 24th 7.0 12.8 average 55%
Paraburdoo Aero 38.0 -0.4 41.9 15th     16.4 27th 11.6 8.3 high 140%
Murchison (district 07A)
Meekatharra Airport 33.2 -0.2 39.5 15th 19.1 +0.3 14.7 6th 20.4 12.0 high 170%
Mount Magnet Aero 31.6 -1.2 38.4 16th 17.4 -0.6 10.6 6th 41.8 12.2 v high 343%
Paynes Find 30.5 -1.3 38.5 15th 15.0 -0.5 7.7 6th 35.6 11.5 v high 310%
North Coast (district 08)
Dalwallinu 29.4 -1.2 39.4 16th 11.8 -1.4 4.7 7th 28.0 10.8 v high 259%
Geraldton Airport 26.1   33.7 15th 13.5   5.3 7th 0.6
Kalbarri 27.0 -1.3 36.0 14th 15.1 +0.1 9.6 6th 0.4 6.8 low 6%
Morawa Airport 30.6 -1.6 41.0 16th 13.2 -1.4 6.8 7th 23.0 10.9 high 211%
Mullewa 30.7 -0.5 40.6 15th 13.6 -0.9 7.4 7th 11.9 8.8 high 135%
North Island 23.8 -1.6 26.0 16th 17.8 -0.8 16.0 6th 0.4 6.7 low 6%
Wongan Hills 29.0 -0.2 38.7 16th 12.3 -0.9 4.8 7th 8.2 12.4 average 66%
Central Coast (district 09)
Badgingarra Research Stn 28.0 -0.5 38.9 16th 11.5 -0.9 4.7 6th 0 18.8 lowest 0%
Bickley 23.5 -1.6 32.4 16th 10.5 -1.4 5.4 7th 8.8 40.9 low 22%
Garden Island HSF 21.3 -2.6 28.2 22nd 14.6 -1.2 9.9 7th 3.2 20.8 low 15%
Gingin Aero 26.5 -1.6 36.9 16th 11.2 -0.8 5.0 7th 1.4 18.0 v low 8%
Jandakot Aero 24.8 -1.6 35.0 16th 12.1 -0.6 6.3 7th 11.0 27.3 low 40%
Jurien Bay 24.4 -1.6 31.4 22nd 13.5 -0.1 5.4 7th 2.6 17.4 low 15%
Lancelin 22.9 -2.0 31.0 22nd 13.7 -0.5 8.1 20th 6.2 20.0 low 31%
Millendon (Swan Valley) 26.9   36.2 16th 12.0   4.5 8th 1.0
Pearce RAAF 27.3 -0.1 37.1 16th 12.0 -0.6 5.2 8th 3.8 22.5 low 17%
Perth Airport 25.7 -0.3 36.0 16th 12.5 -0.3 6.1 8th 4.8 25.6 v low 19%
Perth Metro 25.2 -1.6 35.9 16th 13.5 -0.9 8.0 7th 3.2 21.8 lowest 15%
Rottnest Island 21.1 -2.1 25.2 16th 14.8 -1.2 10.3 7th 3.2 18.8 v low 17%
Swanbourne 22.7 -2.8 31.9 9th 13.6 -1.2 8.5 7th 5.0 22.6 low 22%
South Coast (district 09A)
Albany 18.7 -1.7 24.3 17th 12.3 -0.2 8.0 6th 32.8 44.5 average 74%
Albany Airport 20.1   29.3 17th 10.3   5.1 8th 42.6
Bridgetown 22.7 -1.7 29.9 16th 7.2 -2.2 -0.8 7th 11.6 29.2 low 40%
Bunbury 22.8 -1.7 31.8 16th 10.3 -1.9 2.2 7th 3.0 22.1 v low 14%
Busselton Aero 23.3 -1.7 31.4 16th 9.0 -1.8 0.9 7th 7.0 22.1 low 32%
Cape Leeuwin 19.4 -0.8 21.7 17th 13.8 -0.4 9.9 27th 17.2 36.3 low 47%
Cape Naturaliste 21.4 -0.1 27.8 16th 11.3 -1.2 6.2 7th 8.2 25.5 low 32%
Collie East 23.8 -1.8 31.4 15th 8.4 -1.6 -0.4 7th 5.0 26.0 v low 19%
Donnybrook 23.7 -1.2 31.5 16th 10.2 -0.3 3.8 7th 11.0 32.8 low 34%
Dwellingup 23.6 -0.2 32.0 15th 10.1 -0.4 3.1 7th 26.0 45.5 average 57%
Esperance 21.9 -1.3 34.5 15th 12.7 -0.1 7.4 22nd 30.2 33.7 average 90%
Esperance Aero 23.0 -1.3 35.5 17th 11.1 -0.9 5.5 7th 50.8 37.0 high 137%
Hopetoun North 21.2 -2.1 36.5 17th 11.9 -0.5 5.8 8th 21.8 34.8 average 63%
Jarrahwood 22.8 -1.1 31.0 16th 7.2 -2.4 -1.5 7th 11.6 41.4 low 28%
Mandurah 23.1 -1.8 33.6 16th 14.1 -1.6 9.0 7th 8.0 22.7 low 35%
Manjimup 21.0 -1.0 30.4 17th 9.0 -1.1 2.5 7th 21.6 45.6 low 47%
North Walpole 19.2 -1.9 26.6 17th 10.8 -1.0 6.0 27th 36.2 54.6 average 66%
Rocky Gully 20.7 -2.5 31.0 17th 8.4 -1.5 2.8 7th 40.4 37.8 average 107%
Shannon 19.6 -3.0 28.3 17th 8.4 -1.9 2.9 7th 35.8 45.9 average 78%
Witchcliffe 20.7 -2.2 25.5 17th 9.7 -1.2 3.8 30th 21.0 33.3 average 63%
North Central (district 10)
Bencubbin 28.4 -0.7 37.2 16th 13.2 0.0 6.6 6th 11.5 13.5 average 85%
Cunderdin Airfield 29.6 -0.7 39.0 15th 11.4 -1.0 3.8 8th 0.2 15.0 v low 1%
Merredin 28.7 -0.1 37.2 15th 12.6 -0.7 5.7 7th 17.8 14.7 high 121%
Northam 29.0 +0.4 37.8 15th 12.0 -0.5 6.1 7th 2.6 12.2 low 21%
York 28.7 -0.7 38.1 15th 10.7 -0.5 1.5 7th 3.0 14.4 low 21%
South Central (district 10A)
Beverley 28.9 +0.2 37.8 16th 11.2 -0.4 3.4 7th 1.8 14.9 low 12%
Brookton 27.2 -0.4 36.0 15th 9.9 -1.2 3.0 6th 4.2 14.6 low 29%
Corrigin 26.8 -0.4 35.9 15th 11.2 -0.2 5.1 6th 8.0 16.5 average 48%
Hyden 27.6 -1.0 36.8 15th 10.6 -1.0 2.1 7th 51.7 19.5 v high 265%
Jacup 24.1 -0.7 36.2 17th 8.3 -1.6 0.0 7th 17.4 29.8 low 58%
Katanning 24.0 -2.3 34.0 17th 8.9 -1.2 1.4 7th 18.6 23.2 average 80%
Lake Grace 25.7 -1.5 36.2 17th 10.6 -1.4 3.2 7th 11.4 24.2 average 47%
Narembeen 28.3 -0.4 37.6 15th 11.3 -1.1 4.5 7th 4.5 16.7 average 27%
Narrogin 25.0 -0.6 33.6 15th 9.7 -0.5 2.0 7th 13.2 18.3 average 72%
Newdegate Research Station 25.9 -1.5 36.0 17th     -0.7 7th 16.8 21.7 average 77%
Pingelly 26.6 +0.1 34.8 15th 10.7 -0.8 3.3 7th 3.4 15.3 low 22%
Ravensthorpe 24.2 -0.9 35.4 17th 10.4 -0.7 4.0 27th 37.2 30.6 high 122%
Wagin 25.2 -0.7 33.5 15th 9.8 -1.0 1.5 7th 10.6 17.9 average 59%
Wandering 25.7 -1.8 34.9 15th 8.7 -0.9 -0.6 7th 14.4 18.5 average 78%
Eucla (district 11)
Balladonia 27.1 -0.8 36.3 17th 10.7 -0.7 3.8 7th 44.7 23.9 high 187%
Eucla 24.8 +0.6 40.8 18th 12.9 -0.6 4.4 22nd 55.6 18.9 v high 294%
Eyre 25.6 +1.1 38.5 18th 11.9 -0.2 -1.0 22nd 41.2 21.2 high 194%
Forrest 29.1 -0.9 40.6 18th 13.4 +0.3 6.3 22nd 38.4 22.9 high 168%
Red Rocks Point 22.8 -0.8 39.6 18th 13.6 -1.2 6.0 28th 52.6 21.6 high 244%
South East (district 12)
Bulga Downs 31.5 -1.7 39.9 29th 16.6 -0.7 11.5 7th
Kalgoorlie-Boulder Airport 28.6 -0.5 36.9 17th 14.5 +0.3 6.7 7th 62.0 18.9 v high 328%
Laverton Aero 31.2 -0.2 39.2 29th 17.4 +0.2 11.0 7th 67.6 20.5 high 330%
Leinster Aero 31.9 -0.8 40.0 29th 17.8 -0.5 12.3 7th 39.6 17.0 high 233%
Leonora Aero 31.1 -1.5 39.4 29th 17.8 -0.3 11.3 7th 71.4 23.5 v high 304%
Munglinup West 24.1 -2.0 37.3 17th 10.2 -1.2 4.4 7th 27.4 30.5 average 90%
Norseman Aero 27.9 -0.9 37.8 17th 11.7 -0.5 1.2 7th 20.6 29.1 average 71%
Salmon Gums Res.Stn. 26.3 -0.1 37.8 17th 9.7 -0.4 -1.2 7th 41.2 26.6 high 155%
Southern Cross Airfield 28.6 -1.5 36.3 16th 12.2 -1.1 4.2 7th 8.6 17.0 average 51%
North East (district 13)
Carnegie 35.2 -0.4 42.0 30th 19.9 +0.5 13.5 20th 11.2 12.9 average 87%
Giles Meteorological Office 35.1 +0.7 40.8 30th 20.3 +0.3 13.0 21st 25.2 28.5 average 88%
Telfer Aero 40.6 +1.1 43.4 19th 24.8 +1.2 19.3 24th 6.8 15.4 average 44%
Warburton Airfield 36.1 +1.6 42.9 30th 20.7 +1.9 14.4 8th 16.2 24.5 average 66%
Wiluna 34.0 0.0 42.0 29th 19.2 +1.3 14.5 7th 43.2 12.1 v high 357%
Wiluna Aero 34.1   40.7 30th 19.3   14.3 7th 38.0
Offshore Islands (district 200)
Adele Island 30.7   31.9 9th      
Rowley Shoals 27.6   31.2 16th     25.3 22nd

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 Monday 3 December 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.

Further information

Media
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Enquiries

Climate