Friday, 1 December 2017 - Monthly Climate Summary for Western Australia - Product code IDCKGC11R0

Western Australia in November 2017: Very warm November

Daytime temperatures were above average in much of the western half of Western Australia in November and the mean maximum temperature for the State as a whole was above average. Overnight temperatures were above average for much of western and southern WA, and as a result the state-wide averaged mean minimum temperature was eighth-highest on record. It was a dry November for the Lower Southwest (southwest a line from Jurien Bay to Bremer Bay), while pockets of above average rainfall were scattered across northern and central WA. The state-wide rainfall was near average overall.

Dry in the Lower Southwest

Warm days and nights in the western WA

  • Mean maximum temperature for WA was 1.1 °C above average, which was 17th-highest in November on record though cooler than the past two Novembers
  • Mean minimum temperature for WA was 1  °C above average, which was the eighth-highest in November on record
  • Mean maximum temperature for the South West Land Division (SWLD) was 2.5 °C above average, which was the sixth-warmest November on record for the SWLD
  • Mean minimum temperature for the SWLD was 2.3 °C above average, which was the second-warmest November on record for the SWLD
  • Mean minimum temperature for the Lower Southwest was 2.6 °C above average, which was the warmest November for the region
  • A few sites in the Lower Southwest registered their warmest November on record in terms of maximum temperature
  • Telfer in the inland Pilbara recorded 15 consecutive days with maximum temperatures at 40 °C or higher between the 16th and 30th , which was the longest such hot spell in November at the site for 12 years, since an equal run of 15 days between 16 and 30 November 2005
  • Episodes of fresh northeasterly winds over northwest and central WA in late November helped both Kalgoorlie-Boulder Airport and Paraburdoo Aerodrome record their warmest November night on record
  • Many locations in the Lower Southwest had one of their mildest Novembers on record in terms of minimum temperature

Further information

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Extremes Maps Records Summaries Important notes the top

Extremes in November 2017
Hottest day 45.1 °C at Marble Bar on the 22nd
Warmest days on average 41.3 °C at Marble Bar
Coolest days on average 20.6 °C at Albany
Coldest day 14.6 °C at Mount Barker on the 1st
Coldest night 1.6 °C at Salmon Gums Res.Stn. on the 15th
Coolest nights on average 10.3 °C at Jacup
Warmest nights on average 28.0 °C at Troughton Island
26.7 °C at Broome Airport
Warmest night 29.8 °C at Roebourne Aero on the 6th
29.8 °C at Wittenoom on the 6th
29.8 °C at Wittenoom on the 22nd
Warmest on average overall 33.4 °C at Fitzroy Crossing Aero
Coolest on average overall 16.6 °C at North Walpole
Wettest overall 184.4 mm at Mount Barnett
Driest overall 0 mm at Barrow Island Airport and others
Wettest day 82.2 mm at Old Mornington Homestead on the 21st
Strongest wind gust 115 km/h at Forrest on the 18th

Extremes Maps Records Summaries Important notes the top

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 total rainfall
New record
(mm)		 Old
record		 Years of
record		 Average for
November
Mount Elizabeth 181.0 175.9 in 2012 44 79.0

Highest November total rainfall for at least 20 years
Observed
(mm)		 Most recent
higher		 Average for
November
Mount Barnett 184.4 267.1 in 1914* 84.5
Pullagaroo 29.4 36.0 in 1983* 7.1
Carey Downs 26.0 =26.0 in 1987* 4.8
Mallina 16.6 62.5 in 1983* 2.3
Paynes Find 38.8 45.0 in 1993* 11.1

* 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
Barrett Meadows 8.8 10.2 in 1972 100 52.4
Jandakot Aero 1.6 1.8 in 1972 44 27.7
Maida Vale 1.0 2.6 in 1982 33 28.9

Lowest November total rainfall for at least 20 years
Observed
(mm)		 Most recent
lower		 Average for
November
Perth Airport 1.8 1.3 in 1957 25.9
Albany 12.9 6.1 in 1972 44.6
Denmark 15.0 8.9 in 1972 52.3
Rottnest Island 3.4 2.2 in 1994 19.4
Horseshoe 3.2 2.1 in 1995* 21.2

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



Record highest November mean daily maximum temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
November
Pearce RAAF 30.9 30.7 in 2015 56 27.3


Record highest November daily minimum temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
November
Kalgoorlie-Boulder Airport 26.6 on the 27th 25.6 on the 23rd in 1980 77 14.2
Doongan 27.0 on the 4th = 27.0 on the 22nd in 2008 27 22.9
Paraburdoo Aero 29.6 on the 24th 29.3 on the 16th in 2015 22 21.5


Record highest November mean daily minimum temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
November
Perth Airport 15.4 15.1 in 2013 73 12.7
Brookton 13.7 13.4 in 2013 50 11.0
Jandakot Aero 15.1 14.9 in 2013 27 12.6
Swanbourne 16.4 16.3 in 2015 24 14.7
Perth Metro 16.0 = 16.0 in 2015 23 14.3

Highest November mean daily minimum temperature for at least 20 years
Observed
(°C)		 Most recent
higher		 Average for
November
Badgingarra Research Stn 15.2 17.2 in 1966* 12.3
Eyre 14.3 15.1 in 1914* 12.0
Dwellingup 12.8 13.0 in 1982* 10.4

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



Record highest November mean temperature
New record
(°C)		 Old
record		 Years of
record		 Average for
November
Dwellingup 20.2 19.9 in 2013 79 17.1
Perth Airport 22.7 22.3 in 2013 73 19.4
Brookton 21.6 = 21.6 in 2013 50 19.3
Badgingarra Research Stn 23.2 22.6 in 1966 49 20.4
Jandakot Aero 22.2 21.9 in 2013 27 19.5
Perth Metro 22.6 22.5 in 2013 23 20.5
Busselton Aero 19.6 = 19.6 in 2013 20 17.8


Extremes Maps Records Summaries Important notes the top

Summary statistics for November 2017
Maximum temperatures
(°C)		 Minimum temperatures
(°C)		 Rainfall
(millimetres)
Mean for
November
2017		 Diff
from
average		 Highest for
November
2017		 Mean for
November
2017		 Diff
from
average		 Lowest for
November
2017		 Total for
November
2017		 Average
for
November		 Rank of
November
2017		 Fraction of
November
average
North Kimberley (district 01)
Doongan 36.3 -0.3 39.0 10th 22.6 -0.3 18.0 8th 152.3 112.5 high 135%
Kalumburu 37.0 -0.1 39.9 3rd 24.5 -0.2 20.5 3rd 123.2 85.8 high 144%
Mount Elizabeth 35.2 -0.9 38.8 4th 21.4 -0.3 15.6 4th 181.0 79.0 highest 229%
Troughton Island 33.3 +0.3 34.2 30th 28.0 +0.5 25.6 15th 30.8 10.8 v high 285%
Truscott 34.8 -0.4 37.9 3rd 25.5 -0.7 21.2 8th 90.6 28.6 v high 317%
Wyndham Aero 38.8 -1.1 42.3 10th 25.5 -1.2 21.6 4th 99.2 58.5 high 170%
East Kimberley (district 02)
Argyle Aerodrome 37.9 -0.9 40.8 4th 25.4 -0.8 21.9 7th 75.6 60.6 average 125%
Halls Creek Airport 37.5   40.5 5th 23.2   15.6 3rd 38.2
Kununurra Aero 38.2 -0.8 41.6 10th 24.2 -1.0 17.3 4th 59.0 58.5 average 101%
Warmun 37.8 -1.5 41.4 5th 24.0 -1.0 16.9 4th 73.7 60.9 high 121%
West Kimberley (district 03)
Bidyadanga 36.2 +1.3 42.2 1st 24.7 +0.7 21.0 2nd 0.1 7.6 average 1%
Broome Airport 33.7 0.0 37.9 7th 26.7 +1.5 22.1 2nd 10.0 9.1 high 110%
Curtin Aero 39.6 -0.3 41.1 4th 24.6 +0.4 21.5 2nd 8.6 21.9 average 39%
Cygnet Bay 35.7 +0.4 37.6 30th 24.9 +0.8 21.9 15th 0 5.6 lowest 0%
Derby Aero 38.8 +0.6 41.9 12th 25.9 +0.3 22.8 2nd 23.4 12.5 high 187%
Fitzroy Crossing Aero 40.8 0.0 43.2 4th 25.9 +0.4 21.6 4th 16.2 31.1 low 52%
De Grey (district 04)
Bedout Island 32.2   33.8 26th 25.9   24.6 16th
Karratha Aero 34.6 -0.5 41.2 1st 23.5 +0.4 19.8 10th 0 1.3 lowest 0%
Legendre Island 31.3   37.0 22nd 24.4   22.3 12th
Mandora 35.5 -1.2 39.4 1st 22.5 +0.7 18.3 15th 0.2 6.4 average 3%
Marble Bar 41.3 +0.6 45.1 22nd 23.5 -0.6 19.4 12th 5.2 9.0 average 58%
Pardoo Station       22.4 +0.2 17.5 13th 0 3.2 lowest 0%
Port Hedland Airport 35.9 -0.4 42.9 5th 22.6 +1.2 17.9 11th 3.4 2.6 v high 131%
Roebourne Aero 38.5 -0.3 43.7 5th 22.2 -0.2 18.1 8th 0 2.6 v low 0%
Fortescue (district 05)
Barrow Island Airport 31.0 +0.4 39.2 1st 23.2 +0.2 21.1 17th 0 1.5 v low 0%
Learmonth Airport 35.3 +0.7 43.3 22nd 18.9 +0.4 14.2 10th 0.8 1.8 high 44%
Mardie 35.1 -1.3 45.0 22nd 20.7 +0.5 17.1 11th 0 1.5 lowest 0%
Onslow Airport 34.0 -0.4 43.1 22nd 20.7 +0.6 18.3 10th 0 2.8 lowest 0%
Thevenard Island 31.0 +0.3 39.1 22nd 22.1 0.0 19.6 17th 0.4 1.4 high 29%
Wittenoom 39.5 +1.4 42.4 22nd 23.3 -0.3 17.9 8th 7.4 9.7 average 76%
West Gascoyne (district 06)
Carnarvon Airport 28.3 +0.6 40.9 23rd 20.0 +1.3 14.5 19th 2.2 3.9 average 56%
Denham 28.2 +0.4 38.0 23rd 19.8 +1.1 14.5 30th 1.8 3.1 average 58%
Murchison 35.3 +1.1 42.5 24th 18.9 +2.3 14.0 19th 13.2 7.3 high 181%
Shark Bay Airport 30.8 +0.4 40.1 23rd 18.4 +0.7 13.7 10th 3.0 2.3 high 130%
East Gascoyne (district 07)
Newman Aero 38.7 +1.3 41.5 3rd 20.9 -0.1 16.8 1st 8.6 12.9 average 67%
Paraburdoo Aero 39.6 +1.3 42.8 24th 21.8 +0.3 16.9 11th 1.2 8.3 average 14%
Murchison (district 07A)
Meekatharra Airport 36.0 +2.7 40.3 2nd 20.5 +1.7 16.6 19th 12.4 11.9 high 104%
Mount Magnet Aero 34.7 +2.0 40.9 2nd 19.4 +1.4 14.2 19th 9.0 10.9 average 83%
Paynes Find 33.8 +2.0 40.1 26th 17.3 +1.9 12.1 19th 38.8 11.1 v high 350%
North Coast (district 08)
Dalwallinu 32.2 +1.7 38.6 11th 14.7 +1.6 10.5 29th 22.8 9.9 v high 230%
Geraldton Airport 29.8   38.6 6th 15.5   10.7 1st 6.0
Kalbarri 29.7 +1.4 39.2 6th 17.3 +2.3 12.2 29th 2.9 7.0 average 41%
Mullewa 33.4 +2.3 39.5 24th 17.1 +2.7 12.4 19th 6.3 8.8 average 72%
North Island 25.7 +0.3 29.1 23rd 19.2 +0.6 16.1 18th 7.2 7.1 average 101%
Central Coast (district 09)
Badgingarra Research Stn 31.2 +2.8 36.9 24th 15.2 +2.9 8.3 29th 0.6 19.1 v low 3%
Bickley 27.4 +2.4 35.5 11th 13.2 +1.3 9.0 15th 3.6 41.6 v low 9%
Garden Island HSF 25.5 +1.7 34.6 16th 16.7 +0.9 13.3 15th 1.8 21.8 v low 8%
Gingin Aero 30.4 +2.4 38.6 11th 13.8 +1.8 7.2 20th 1.4 18.8 low 7%
Jandakot Aero 29.2 +2.9 36.5 16th 15.1 +2.5 10.1 20th 1.6 27.7 lowest 6%
Jurien Bay 28.3 +2.4 36.6 6th 15.4 +1.8 10.6 4th 10.7 17.7 average 60%
Lancelin 26.5 +1.6 35.5 7th 16.0 +1.8 12.4 24th 11.7 20.3 average 58%
Medina Research Centre     36.9 16th 15.1 +1.7 11.2 20th        
Millendon (Swan Valley) 30.6   37.8 11th 14.8   10.1 20th 0.8
Pearce RAAF 30.9 +3.6 37.7 11th 14.5 +2.0 8.5 20th 1.4 22.8 v low 6%
Perth Airport 30.0 +4.0 38.0 11th 15.4 +2.7 10.0 20th 1.8 25.9 v low 7%
Perth Metro 29.3 +2.7 36.9 11th 16.0 +1.7 12.2 20th 4.8 22.3 v low 21%
Rottnest Island 24.9 +1.8 33.9 7th 17.0 +1.0 13.9 3rd 3.4 19.4 v low 18%
Swanbourne 27.1 +1.7 35.5 7th 16.4 +1.7 13.5 15th 4.0 23.3 low 17%
South Coast (district 09A)
Albany 20.6 +0.2 26.9 9th 14.5 +2.1 9.3 14th 12.9 44.6 v low 29%
Albany Airport 22.2   30.4 9th 11.6   4.7 22nd 12.6
Bridgetown 25.4 +1.1 32.9 8th     3.5 22nd 17.2 30.1 average 57%
Bunbury 26.5 +2.1 32.5 11th 13.7 +1.6 8.3 29th 8.8 23.0 low 38%
Busselton Aero 26.7 +1.7 33.2 10th 12.6 +1.9 7.5 22nd 7.4 22.8 low 32%
Cape Naturaliste 24.6 +3.1 31.1 7th 13.8 +1.3 10.2 14th 6.4 25.7 low 25%
Collie East 27.5 +2.0 35.6 11th 11.4 +1.5 6.3 22nd 8.6 27.4 low 31%
Donnybrook 27.7 +2.8 36.7 11th 13.5 +3.0 8.5 29th 1.4 33.0 v low 4%
Dwellingup 27.5 +3.8 34.8 11th 12.8 +2.4 8.5 29th 4.4 45.7 v low 10%
Esperance 22.8 -0.4 35.9 17th 13.4 +0.6 9.0 24th 21.2 33.8 low 63%
Esperance Aero 24.7 +0.4 39.3 17th 12.1 +0.1 7.5 30th 33.4 36.7 average 91%
Jarrahwood 26.3 +2.5 34.5 11th 11.5 +1.9 6.2 14th 19.0 42.0 low 45%
Mandurah 27.3 +2.5 33.1 6th 16.8 +1.2 13.4 15th 5.6 23.6 v low 24%
Manjimup 24.8 +2.8 33.9 8th 11.2 +1.1 6.6 22nd 11.6 45.8 v low 25%
North Walpole 21.6 +0.5 29.4 9th 11.7 -0.1 7.2 15th 36.0 55.9 low 64%
Rocky Gully 23.8 +0.6 33.6 8th 10.6 +0.8 4.5 22nd 16.4 37.7 low 44%
Shannon 22.7 +0.1 32.3 8th 10.8 +0.5 5.6 22nd 37.4 46.4 average 81%
Witchcliffe 24.4 +1.6 31.2 7th 11.8 +0.9 7.5 15th 9.6 34.0 v low 28%
North Central (district 10)
Bencubbin 30.6 +1.5 38.0 26th 15.1 +1.9 10.5 22nd 4.6 13.4 average 34%
Cunderdin Airfield 31.8 +1.6 37.8 11th 14.1 +1.8 9.6 29th 16.6 15.6 average 106%
Merredin 31.1 +2.4 37.6 11th 15.1 +1.8 10.0 22nd 11.2 14.7 average 76%
Northam 31.1 +2.5 37.3 11th 13.2 +0.8 9.5 15th 13.8 12.3 average 112%
York       12.9 +1.8 9.0 29th 1.0 14.2 v low 7%
South Central (district 10A)
Beverley 30.8 +2.1 37.8 11th 13.8 +2.2 9.6 29th 15.4 15.0 average 103%
Brookton 29.6 +2.0 37.2 11th 13.7 +2.7 8.8 29th 14.5 14.7 average 99%
Corrigin 29.0 +1.8 35.0 10th 13.3 +1.9 8.8 15th
Hyden 29.8 +1.2 37.1 11th 12.4 +0.8 7.0 22nd 23.8 19.2 high 124%
Jacup 25.1 +0.3 35.6 17th 10.3 +0.4 4.1 22nd 14.0 30.3 low 46%
Katanning 27.0 +0.8 34.4 11th 11.2 +1.1 5.9 15th 0.4 22.2 v low 2%
Lake Grace 27.7 +0.5 35.3 11th 13.0 +1.1 7.7 22nd 18.2 24.8 average 73%
Narembeen 30.5 +1.9 37.4 11th 13.9 +1.6 9.1 15th 28.4 16.9 high 168%
Narrogin 27.7 +2.1 34.4 11th 12.7 +2.6 8.3 22nd 20.4 18.3 average 111%
Newdegate Research Station 27.9 +0.5 36.0 11th 10.9 +0.9 5.0 22nd 18.8 21.8 average 86%
Ongerup 25.6 +1.1 33.0 11th 11.1 +0.5 6.4 15th 12.4 25.6 average 48%
Pingelly 29.1 +2.7 35.8 11th 12.6 +1.2 8.4 22nd 21.4 15.4 high 139%
Ravensthorpe 24.8 -0.3 38.2 17th 12.2 +1.1 6.0 22nd 22.8 30.5 average 75%
Wagin 28.1 +2.3 36.0 11th 12.9 +2.2 6.2 22nd 5.6 18.0 low 31%
Wandering 28.7 +1.3 35.9 11th 11.8 +2.4 5.2 29th 3.4 18.7 low 18%
Eucla (district 11)
Eucla 24.3 +0.1 42.9 18th 15.0 +1.5 9.6 17th 41.6 18.6 high 224%
Eyre 25.9 +1.5 42.4 28th 14.3 +2.3 4.7 1st 17.7 21.0 average 84%
Forrest 29.6 -0.4 40.3 18th 14.6 +1.5 7.6 7th 31.2 22.3 high 140%
Red Rocks Point 23.6 0.0 42.4 18th 16.0 +1.3 11.5 17th 16.4 19.4 average 85%
South East (district 12)
Bulga Downs 34.5 +1.4 41.2 2nd 18.3 +1.0 14.5 23rd 15.8 11.0 high 144%
Kalgoorlie-Boulder Airport 30.5 +1.5 39.6 17th 15.5 +1.3 9.9 22nd 20.0 18.4 average 109%
Laverton Aero 33.4 +2.1 40.4 27th 17.6 +0.5 12.7 6th 14.6 18.6 high 78%
Leinster Aero 34.5 +1.9 39.9 27th 19.3 +1.1 15.0 19th 8.4 16.1 average 52%
Leonora Aero 33.8 +1.3 40.4 27th 18.9 +0.8 14.3 6th 1.8 19.2 v low 9%
Munglinup West 25.3 -0.8 39.8 17th 11.4 0.0 5.7 22nd 27.6 30.7 average 90%
Norseman Aero 29.6 +0.9 40.1 17th 12.8 +0.6 3.4 22nd 13.2 29.6 average 45%
Salmon Gums Res.Stn. 27.1 +0.7 39.1 17th 10.7 +0.6 1.6 15th 35.8 26.4 high 136%
North East (district 13)
Carnegie 36.3 +0.7 41.4 21st 20.2 +0.8 16.2 11th 9.8 13.0 average 75%
Giles Meteorological Office 35.3 +1.0 41.5 30th 20.0 0.0 13.8 8th 26.8 28.5 average 94%
Telfer Aero 40.9 +1.5 45.0 21st 24.5 +0.9 19.5 14th 3.6 15.6 average 23%
Warburton Airfield 35.1 +0.7 42.2 28th 20.2 +1.5 16.1 8th 0 24.6 lowest 0%
Wiluna 35.5 +1.5 41.0 26th 19.3 +1.4 14.5 4th 29.6 11.9 high 249%
Wiluna Aero 35.7   41.6 26th 19.6   15.7 10th 31.0
Offshore Islands (district 200)
Browse Island 31.5   33.2 21st 27.9   24.5 24th
Varanus Island 29.9 -0.2 34.2 1st 23.7 +0.2 22.2 10th 0.2 0.7 average 29%
Note: Observations for “Perth Metro” are taken from the current site at Mount Lawley (Bureau number 009225).
Comparisons are made against combined data from the current site (which opened in early 1993) and the previous site at Perth Regional Office (009034), which ran from 1876 to early 1992.
From 2017 on, information about Cocos and Christmas Islands can be found in the climate summary for the Remote Islands and Antarctica

Extremes Maps Records Summaries Important notes the top

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 Friday 1 December 2017. 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
(03) 9669 4057
Enquiries

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