Western Australia in autumn 2019: very dry in the west, very warm in the north

Autumn rainfall was below average across much of Western Australia, but above average in parts of the Pilbara. Mean seasonal maximum temperatures were above average across most of the State and it was the fourth-warmest autumn on record for WA as a whole. Mean seasonal minimum temperatures were above average apart from the southwest.

Very dry in the west; wet in part of the Pilbara

  • Autumn rainfall was below average for WA; it was the seventh-driest autumn for the South West Land Division (SWLD)
  • It was the fifth-driest year to date (January-May), and driest since 1972 for WA; it was the driest year to date on record for the SWLD since record commenced in 1900
  • Numerous sites in the SWLD and adjacent Central West and Gascoyne districts had their driest autumn on record or driest autumn for at least 30 years with seasonal totals less than 10 mm along the Central West and Gascoyne coast
  • Port Hedland Airport recorded its new autumn daily rainfall record on 24 March during the passage of tropical cyclone Veronica; Hill Spring in the Gascoyne also set its new record on 12 April
  • It was the driest start to the year (January-May) on record for many locations in the SWLD and adjacent Central West district, including sites with over 100 years of rainfall observations; some sites in the Central West district recorded less than 20 mm in total
  • Geraldton Airport received 5.4 mm in the first five months in 2019, and its previous record was 18.8 mm over January-May 1983 at the old Airport site; Northampton (north of Geraldton) with 137 years of rainfall observations, recorded 16.0 mm, replacing its previous record (16.5 mm) set over a century ago in January-May 1914

Very warm in the north

  • Western Australia had its equal sixth-warmest autumn on record in terms of mean temperature (1.34 °C above average)
  • The mean seasonal maximum temperature was 2.01 °C above average, the fourth-warmest autumn on record for WA
  • It was exceptional hot start to autumn in the north, central and southeast of the State, with autumn temperature records first affecting the southeast on 1 March, then the north and central WA on 9 to 11 March
  • Roebourne Aero recorded a maximum temperature of 48.1 °C on 10 March, which is the new national autumn temperature record, exceeding the previous national record of 47.8 °C at Carnarvon Airport on 6 March 2007
  • The mean seasonal minimum temperature was 0.68 °C above average, higher than autumns in 2018 and 2017
  • Some record high autumn minimum temperatures were reported in the north and southeast WA at the start to autumn; Bidyadanga (west Kimberley coast ) recorded a minimum 33.0 °C on 10 March, which was nation's highest autumn minimum temperature for 14 years (33.3 °C on 1 March 2005 at Marble Bar)
  • Some record low autumn temperatures were reported in the south towards the end of autumn on 18 and 19 May
  • The year to date mean maximum temperature was 2.28 °C above average, the second-warmest year to date on record, just behind +2.45 °C in 2005 for WA

Tropical cyclones in autumn

  • Three tropical cyclones developed or moved through the Western Australia region in autumn: Savannah and Veronica in March, and Wallace in April
  • In late March, tropical cyclone Veronica tracked very close to the Pilbara coast (midway between Port Hedland and Karratha) on the 24th then stalled next day before moving westward and weakening. Veronica produced destructive winds and very heavy rainfall along those coastline and adjacent inland. Roebourne Aero recorded 154 km/h wind gust on the 25th. Indee (south of Port Hedland) recorded a daily rainfall 263.4 mm on the 25th

Further information

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Extremes in autumn 2019
Hottest day 48.1 °C at Roebourne Aero on 10 March
Warmest days on average 37.8 °C at Fitzroy Crossing Aero
Coolest days on average 20.4 °C at Albany and at Shannon
Coldest day 9.2 °C at Rocky Gully on 19 April
Coldest night -3.4 °C at Southern Cross Airfield on 19 May
Coolest nights on average 7.8 °C at Collie East and at Jarrahwood
Warmest nights on average 27.4 °C at Browse Island
Warmest night 33.0 °C at Bidyadanga on 15 March
Warmest on average overall 30.3 °C at Wyndham Aero
Coolest on average overall 15.2 °C at Shannon
Wettest overall 389.8 mm at Port Hedland Airport
Driest overall 1.6 mm at Denham
Wettest day 263.4 mm at Indee on 25 March
Strongest wind gust 154 km/h at Roebourne Aero on 24 March

Maps

Observed Anomaly Decile 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 autumn daily rainfall

New record
(mm)
Old
record
Years of
record
Port Hedland Airport 179.4 on 24 Mar 156.8 on 29 Mar 1988 77
Hill Springs 105.0 on 12 Apr 100.0 on 9 Mar 2000 66



Record lowest autumn total rainfall

New record
(mm)
Old
record
Years of
record
Average for
autumn
Denham 1.6 2.3 in 1914 115 64.0
Three Springs 8.0 13.0 in 1914 113 92.8
Nabawa 8.6 12.2 in 1914 111 98.2
Yuna 5.2 8.0 in 1914 109 86.9
Brunswick Junction 72.0 74.1 in 1940 106 210.8
Wubin 11.0 14.5 in 2017 86 80.4
Eradu 4.6 5.6 in 1914 77 85.7
Pearce RAAF 48.2 50.2 in 1983 63 133.7
Highfields 10.0 15.2 in 1983 60 86.5
Gidgegannup 62.4 71.4 in 2009 57 173.4
Jurien Bay 38.3 39.6 in 1985 50 119.1
Kalbarri 3.8 9.3 in 1985 48 84.9
Wundi 13.8 17.4 in 2006 40 92.7
Arena 20.0 22.0 in 1985 38 92.1
Rottnest Island 37.8 42.0 in 2009 26 122.6
Strawberry 12.6 27.0 in 2006 24 91.6
Yourdamung Lake 65.6 = 65.6 in 2006 24 144.8
Worsley Downs 87.2 89.9 in 1982 23 237.9
York 25.1 = 25.1 in 2000 23 82.0
Gingin Aero 46.6 56.4 in 2009 21 121.8

Lowest autumn total rainfall for at least 20 years

Observed
(mm)
Most recent
lower
Average for
autumn
Northampton 14.4 12.4 in 1914 105.8
Watheroo 19.2 14.8 in 1914* 96.0
Brookton 27.5 26.2 in 1940 99.9
Beverley 20.6 16.6 in 1948 92.7
Wattening 29.0 28.2 in 1949 98.0
Bencubbin 22.5 12.7 in 1949* 81.7
Koorda 17.7 10.5 in 1949* 78.3
Howatharra 10.0 0.0 in 1949* 107.3
New Norcia 30.2 26.8 in 1959* 112.1
Muresk Institute 28.0 24.0 in 1940* 103.8
Coolangatta 11.4 10.8 in 1983 88.2
Perth Airport 51.0 43.0 in 1983 153.3
South Holmwood 15.4 12.8 in 1983 90.9
Nungarin 18.3 18.0 in 1983* 81.6
Pemberton 148.0 123.7 in 1983* 259.3
Warner Glen 110.6 98.8 in 1983* 226.2
Mundaring 91.7 54.6 in 1983* 209.9
Ballidu 18.4 16.0 in 1982* 84.9
Eurardy 11.2 9.5 in 1985* 83.9
Bakers Hill 41.7 35.2 in 1983* 120.5
Lake Nammen 28.6 24.0 in 1989* 121.6
Maida Vale 60.8 46.2 in 1983* 155.0
Doongan 58.9 58.6 in 1991* 269.5
Barrett Meadows 123.6 110.4 in 1996 237.2

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




Record highest autumn temperature

New record
(°C)
Old
record
Years of
record
Average for
autumn
Eucla 46.9 on 1 Mar 44.2 on 19 Mar 1986 104 23.3
Port Hedland Airport 47.0 on 10 Mar 45.9 on 1 Mar 2005 71 34.2
Meekatharra Airport 44.5 on 11 Mar 43.7 on 1 Mar 1985 70 29.1
Wittenoom 45.7 on 10 Mar 43.9 on 26 Mar 1959 67 32.6
Giles Meteorological Office 44.6 on 11 Mar 42.2 on 1 Mar 2016 63 29.0
Wiluna 44.0 on 11 Mar = 44.0 on 1 Mar 1985 61 29.0
Onslow Airport 47.2 on 10 Mar 46.3 on 3 Mar 2016 54 33.1
Gascoyne Junction 46.9 on 11 Mar 46.5 on 6 Mar 2007 48 32.8
Telfer Aero 46.3 on 10 Mar 45.2 on 1 Mar 2016 45 33.7
Carnegie 45.5 on 10 Mar 44.7 on 9 Mar 1989 31 29.9
Doongan 39.0 on 9 Mar 38.8 on 4 Mar 2010 31 32.6
Warburton Airfield 44.8 on 10 Mar 43.5 on 2 Mar 1988 30 29.3
Laverton Aero 43.1 on 9 Mar 42.0 on 6 Mar 2008 28 26.5
Forrest 46.5 on 1 Mar 43.6 on 11 Mar 2013 27 25.9
Pardoo Station 45.6 on 9 Mar 44.5 on 28 Mar 2018 25 34.6
Mount Magnet Aero 42.4 on 11 Mar 42.0 on 1 Mar 1996 24 28.7
Paraburdoo Aero 45.7 on 10 Mar 44.8 on 4 Mar 2007 24 33.2
Newman Aero 45.2 on 10 Mar 43.3 on 4 Mar 2007 23 31.4
Fitzroy Crossing Aero 44.6 on 9 Mar 42.5 on 23 Mar 2018 22 35.7



Record lowest autumn daily maximum temperature

New record
(°C)
Old
record
Years of
record
Average for
autumn
Rocky Gully 9.2 on 19 Apr 10.3 on 30 May 2013 24 21.9



Record highest autumn mean daily maximum temperature

New record
(°C)
Old
record
Years of
record
Average for
autumn
Fitzroy Crossing Aero 37.8 37.5 in 2005 21 35.7



Lowest autumn mean daily maximum temperature for at least 20 years

Observed
(°C)
Most recent
lower
Average for
autumn
Cape Leeuwin 20.7 20.4 in 1993 21.1



Record highest autumn daily minimum temperature

New record
(°C)
Old
record
Years of
record
Average for
autumn
Eucla 27.5 on 1 Mar 27.1 on 26 Mar 2013 104 13.3
Giles Meteorological Office 30.7 on 10 Mar 30.4 on 6 Mar 1986 63 16.1
Bidyadanga 33.0 on 15 Mar 30.6 on 5 Apr 1958 61 21.8
Murchison 29.0 on 13 Mar = 29.0 on 7 Mar 2000 30 15.9
Argyle Aerodrome 30.4 on 22 Mar = 30.4 on 3 Mar 2007 25 22.3
Mount Magnet Aero 29.7 on 5 Mar 28.1 on 13 Mar 2015 24 16.0
Newman Aero 32.1 on 8 Mar 31.0 on 4 Mar 1998 23 17.1
Fitzroy Crossing Aero 29.9 on 6 Apr 28.4 on 6 Mar 2016 22 20.2



Record lowest autumn temperature

New record
(°C)
Old
record
Years of
record
Average for
autumn
Troughton Island 17.2 on 12 May 19.6 on 7 May 1970 41 26.3
Paynes Find 0.1 on 19 May 0.2 on 25 May 1993 40 14.0
Denham 8.5 on 18 May 9.4 on 30 May 1993 32 19.4
Laverton Aero 0.3 on 19 May 1.1 on 27 May 2000 28 14.6
Swanbourne 4.8 on 18 May 5.0 on 31 May 2013 26 15.1
Gingin Aero -2.2 on 18 May -1.2 on 15 May 2010 24 12.1
Dalwallinu 1.0 on 19 May 2.2 on 15 May 2010 23 13.2
Morawa Airport 0.0 on 18 May 2.4 on 22 May 2007 23 14.3
Southern Cross Airfield -3.4 on 19 May = -3.4 on 22 May 2007 23 11.5



Record lowest autumn mean daily minimum temperature

New record
(°C)
Old
record
Years of
record
Average for
autumn
Rocky Gully 9.9 = 9.9 in 2006 23 10.9
Lake Grace 10.5 = 10.5 in 2009 21 11.7

Lowest autumn mean daily minimum temperature for at least 20 years

Observed
(°C)
Most recent
lower
Average for
autumn
Brookton 10.0 9.5 in 1982* 11.1
Cape Leeuwin 15.1 14.4 in 1993 15.3

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




Record highest autumn mean temperature

New record
(°C)
Old
record
Years of
record
Average for
autumn
Fitzroy Crossing Aero 29.9 29.8 in 2016 21 28.0



Lowest autumn mean temperature for at least 20 years

Observed
(°C)
Most recent
lower
Average for
autumn
Cape Leeuwin 17.9 17.4 in 1993 18.2
Wagin 16.5 16.2 in 1993 17.2



Summary statistics for autumn 2019

Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
autumn
2019
Diff
from
average
Highest for
autumn
2019
Mean for
autumn
2019
Diff
from
average
Lowest for
autumn
2019
Total for
autumn
2019
Average
for
autumn
Rank of
autumn
2019
Fraction of
autumn
average
North Kimberley (district 01)
Doongan 33.7 +1.1 39.0 9 Mar 19.5 +0.9 7.6 30 May 58.9 269.5 v low 22%
Troughton Island 32.2 +0.2 35.0 3 Apr 26.5 +0.2 17.2 12 May 241.0 202.4 high 119%
Truscott 33.1 +0.3 36.9 3 Mar 23.8 +0.2 15.6 12 May 179.6 284.6 low 63%
Wyndham Aero 37.1 +1.4 43.9 9 Mar 23.6 +0.8 15.9 30 May 97.0 181.7 low 53%
East Kimberley (district 02)
Argyle Aerodrome 36.3 +2.0 42.0 22 Mar 24.0 +1.7 14.6 30 May 46.2 175.9 low 26%
Halls Creek Airport 35.1   42.1 9 Mar 20.2   9.4 7 May 82.8


Kununurra Aero 36.2 +1.5 41.9 9 Mar 21.8 +0.2 13.1 8 May 69.0 182.9 low 38%
Warmun 34.3 -0.2 40.5 9 Mar 20.7 +0.4 10.6 30 May 73.0 151.4 average 48%
West Kimberley (district 03)
Broome Airport 34.6 +1.3 41.1 30 Mar 22.4 +0.3 13.2 12 May 110.2 150.8 average 73%
Curtin Aero 36.3 +1.0 41.9 10 Mar 22.5 +0.6 15.9 12 May 165.0 205.9 average 80%
Cygnet Bay 33.5 +0.7 37.8 8 Mar 22.6 +0.5 14.2 13 May 87.2 241.8 low 36%
Derby Aero 36.4 +1.8 40.6 9 Mar 22.6 +0.4 11.7 13 May 106.0 171.7 average 62%
Fitzroy Crossing Aero 37.8 +2.1 44.6 9 Mar 22.0 +1.8 12.1 12 May 62.2 149.3 low 42%
De Grey (district 04)
Bedout Island 31.9 +0.2 39.9 15 Mar 26.0   21.3 13 May



Karratha Aero 34.3 +0.8 45.5 10 Mar 23.2 +0.9 13.0 13 May 77.4 92.1 average 84%
Mandora 36.7 +1.6 45.5 15 Mar 21.8 +1.2 12.4 14 May 45.0 117.5 average 38%
Marble Bar 36.0 +0.9 47.4 10 Mar 21.6 +0.2 11.3 12 May 246.8 118.6 high 208%
Port Hedland Airport 35.0 +0.8 47.0 10 Mar 21.8 +0.7 11.5 13 May 389.8 103.9 v high 375%
Roebourne Aero 35.4 +0.2 48.1 10 Mar 21.6 +0.3 10.4 13 May



Fortescue (district 05)
Barrow Island Airport 31.6 +0.9 39.4 16 Mar 24.3 +0.1 16.8 13 May 25.0 140.4 low 18%
Karijini North 34.8   45.8 10 Mar 21.4   11.1 13 May 87.2


Learmonth Airport 34.5 +1.7 45.2 10 Mar 19.7 -0.1 10.3 19 May 78.2 102.6 average 76%
Onslow Airport 35.3 +2.2 47.2 10 Mar 22.4 +1.4 13.8 15 May 40.8 130.4 low 31%
Thevenard Island 32.6 +1.0 38.4 16 Mar 24.6 +0.7 15.7 12 May 61.6 88.7 average 69%
Wittenoom 35.0 +2.4 45.7 10 Mar 21.9 +1.3 10.6 12 May 37.0 123.0 low 30%
West Gascoyne (district 06)
Carnarvon Airport 30.7 +1.7 43.1 6 Mar 18.8 +0.1 6.4 19 May 18.7 62.5 low 30%
Denham 28.7 +0.2 40.8 30 Mar 19.2 -0.2 8.5 18 May 1.6 64.0 lowest 3%
Murchison 31.9 +1.1 43.5 11 Mar 16.9 +1.0 1.0 19 May 43.9 68.3 average 64%
Shark Bay Airport 31.7 +0.8 41.9 30 Mar 17.7 -0.3 4.5 18 May 2.8 50.1 v low 6%
East Gascoyne (district 07)
Newman Aero 34.1 +2.7 45.2 10 Mar 18.5 +1.4 5.8 12 May 16.0 80.9 low 20%
Paraburdoo Aero 35.5 +2.3 45.7 10 Mar 20.6 +1.3 9.9 13 May 35.4 91.5 low 39%
Murchison (district 07A)
Meekatharra Airport 31.3 +2.2 44.5 11 Mar 18.3 +1.5 4.8 18 May 35.2 71.0 average 50%
Mount Magnet Aero 29.6 +0.9 42.4 11 Mar 16.7 +0.7 3.8 18 May 78.6 71.1 average 111%
Paynes Find 29.4 +1.2 40.8 10 Mar 14.4 +0.4 0.1 19 May 52.8 86.5 average 61%
North Coast (district 08)
Dalwallinu 27.7 +0.8 39.0 4 Mar 12.0 -1.2 1.0 19 May 15.6 71.8 v low 22%
Geraldton Airport 28.9   40.4 31 Mar 14.8   1.1 18 May 5.6


Kalbarri 30.4 +1.0 40.4 30 Mar 17.0 +0.7 4.1 18 May 3.8 84.9 lowest 4%
Morawa Airport 29.9 +1.2 40.2 9 Apr 13.8 -0.5 0.0 18 May 25.4 70.0 v low 36%
Mullewa 30.3 +1.5 40.6 10 Mar 15.5 +0.6 3.1 18 May 37.0 84.2 low 44%
North Island 25.8 -0.5 31.4 31 Mar 20.0 -0.2 13.5 5 May 2.8 62.2 v low 5%
Wongan Hills 27.4 +1.1 40.0 4 Mar 12.5 -0.7 2.0 18 May 28.9 94.1 v low 31%
Central Coast (district 09)
Badgingarra Research Stn 27.8 +0.6 38.4 9 Apr 13.2 -0.3 3.5 18 May 25.2 110.3 v low 23%
Bickley 23.6 0.0 37.2 4 Mar 11.8 -0.7 3.5 19 May 98.4 209.9 v low 47%
Garden Island HSF 23.7 -0.4 36.5 4 Mar 15.2 -0.9 7.8 18 May 59.0 124.6 v low 47%
Gingin Aero 27.1 +0.4 41.4 4 Mar 10.8 -1.3 -2.2 18 May 46.6 121.8 lowest 38%
Jandakot Aero 25.9 +0.1 39.7 4 Mar 12.1 -0.3 -0.1 19 May 74.8 162.9 v low 46%
Jurien Bay 26.6 +0.2 37.0 31 Mar 14.0 -0.1 2.9 18 May 38.3 119.1 lowest 32%
Lancelin 25.4 -0.2 37.5 4 Mar 13.7 -0.9 4.0 17 May 35.9 125.7 v low 29%
Millendon (Swan Valley) 26.9   40.7 4 Mar 12.4   0.5 18 May 49.4


Pearce RAAF 27.5 +1.2 41.1 4 Mar 12.3 -1.1 -0.3 18 May 48.2 133.7 lowest 36%
Perth Airport 26.5 +0.8 40.4 4 Mar 12.6 -0.5 1.5 18 May 51.0 153.3 v low 33%
Perth Metro 26.0 +0.1 39.5 4 Mar 13.0 -0.7 1.6 19 May 68.2 142.0 v low 48%
Rottnest Island 23.3 -0.3 33.8 31 Mar 16.5 -0.6 9.8 18 May 37.8 122.6 lowest 31%
Swanbourne 24.8 -0.7 39.4 4 Mar 14.6 -0.5 4.8 18 May 58.4 148.3 v low 39%
South Coast (district 09A)
Albany 20.4 -0.2 29.9 1 Apr 13.2 +0.4 5.2 10 May 124.5 221.7 v low 56%
Bridgetown 22.8 -0.7 33.3 19 Mar 8.3 -1.0 -1.3 2 May 120.4 166.2 low 72%
Bunbury 24.2 -0.1 36.7 4 Mar 10.5 -1.3 1.5 2 May 72.2 152.2 v low 47%
Busselton Aero 23.7 -0.4 33.5 4 Mar 10.3 -0.9 1.5 2 May 81.2 154.6 low 53%
Cape Leeuwin 20.7 -0.4 29.4 31 Mar 15.1 -0.2 8.6 19 Apr 109.6 224.0 v low 49%
Cape Naturaliste 22.8 +0.9 34.2 4 Mar 13.5 -0.4 7.1 2 May 87.0 179.4 v low 48%
Collie East 24.0 0.0 35.6 18 Mar 7.8 -1.2 -2.2 3 May 74.4 149.2 v low 50%
Donnybrook 24.4 +0.3 35.0 18 Mar     0.0 17 May 114.8 207.0 low 55%
Dwellingup 23.7 +1.0 36.7 4 Mar 10.2 -0.2 -0.7 19 May 129.8 248.2 v low 52%
Esperance 22.7 -0.3 35.5 10 Apr 12.9 -0.3 5.3 3 May



Esperance Aero 23.6 +0.3 35.6 27 Mar 12.0 -0.6 4.5 10 May 101.4 139.2 low 73%
Hopetoun North 22.5 -0.7 38.0 10 Apr 12.5 0.0 5.1 3 May 71.8 111.4 low 64%
Jarrahwood 24.0 +0.1 34.5 4 Mar 7.8 -1.3 -2.5 2 May 110.2 194.5 low 57%
Mandurah 24.1 -0.3 37.2 4 Mar 14.9 -0.9 6.5 18 May 78.6 140.2 low 56%
Manjimup 21.7 +0.5 33.5 19 Mar 10.3 -0.4 3.4 20 Apr 120.4 217.5 v low 55%
North Walpole 20.7 -0.8 29.7 31 Mar 11.9 -0.9 4.9 19 May 200.6 240.0 low 84%
Rocky Gully 21.1 -0.8 33.6 19 Mar 9.9 -1.0 2.4 9 May 162.4 162.5 average 100%
Shannon 20.4 -1.0 33.3 19 Mar 10.0 -0.8 3.0 10 May 177.6 224.7 average 79%
Witchcliffe 21.9 -0.8 32.8 19 Mar 10.7 -0.6 3.0 10 May 122.4 219.1 v low 56%
North Central (district 10)
Bencubbin 26.4 +0.5 37.6 4 Mar     -0.5 19 May 22.5 81.7 v low 28%
Cunderdin Airfield 27.0 +0.5 39.1 4 Mar 10.6 -1.3 -0.8 19 May 30.8 71.8 low 43%
Merredin 26.3 +0.8 38.0 4 Mar 12.4 -0.3 -0.5 19 May 34.8 83.9 low 41%
Northam 27.0 +0.9 39.4 4 Mar 11.0 -0.9 -1.0 19 May 30.3 96.3 v low 31%
York 26.9 +0.6 38.5 4 Mar 9.3 -1.5 -2.2 19 May 25.1 82.0 lowest 31%
South Central (district 10A)
Beverley 26.7 +0.5 39.2 4 Mar 10.2 -1.1 -1.6 19 May 20.6 92.7 v low 22%
Brookton 25.6 +0.6 37.7 4 Mar 10.0 -1.1 -0.5 18 May 27.5 99.9 v low 28%
Corrigin 25.0 +0.7 36.7 4 Mar 10.3 -0.7 -1.1 19 May 55.4 90.4 low 61%
Hyden 26.3 +0.7 38.0 15 Mar 9.9 -1.1 -1.7 19 May 40.9 81.6 low 50%
Jacup 22.4 -0.4 36.7 10 Apr 9.7 -0.9 2.8 3 May 107.8 104.4 average 103%
Katanning 22.6 -0.6 33.3 4 Mar 10.0 -0.9 2.2 19 May 76.2 100.2 average 76%
Lake Grace 23.9 -0.2 37.0 10 Apr 10.5 -1.2 1.7 19 May 37.2 73.0 low 51%
Narembeen 26.1 +0.4 37.9 4 Mar 10.4 -1.4 0.0 19 May 50.0 80.4 low 62%
Narrogin 23.8 +0.8 35.5 4 Mar 9.8 -0.7 -0.3 2 May 63.4 112.4 low 56%
Newdegate Research Station 23.9 -0.2 36.7 10 Apr 8.8 -1.3 -1.0 10 May 42.0 90.3 low 47%
Pingelly 24.8 +0.7 36.6 4 Mar 11.0 -0.8 1.2 19 May 49.1 101.3 low 48%
Ravensthorpe 23.6 +0.1 36.2 10 Apr 11.3 -0.4 2.5 10 May 67.4 108.7 low 62%
Wagin 23.3 -0.3 34.5 18 Mar 9.9 -0.9 1.0 27 May 50.5 102.9 low 49%
Wandering 24.6 +0.1 37.0 4 Mar 8.3 -1.2 -1.5 2 May 60.6 99.4 low 61%
Eucla (district 11)
Balladonia 25.0 +0.3 36.1 11 Apr 10.7 -0.2 1.5 31 May 69.6 74.5 average 93%
Eucla 24.6 +1.3 46.9 1 Mar 13.5 +0.2 3.7 20 May 51.0 80.0 low 64%
Eyre 25.3 +1.5 41.5 4 Apr 11.3 -0.4 -2.1 11 May 81.1 90.1 average 90%
Forrest 27.2 +1.3 46.5 1 Mar 11.6 -0.1 1.2 20 May 10.4 55.5 v low 19%
Red Rocks Point 24.1 +0.9 45.1 1 Mar 14.3 0.0 5.4 20 May 20.0 75.1 v low 27%
South East (district 12)
Bulga Downs 29.2 +0.7 42.7 1 Mar 14.4 +0.5 -0.4 19 May



Kalgoorlie-Boulder Airport 25.9 +0.8 40.1 11 Apr 12.5 0.0 0.5 19 May 46.0 70.6 average 65%
Laverton Aero 28.6 +2.1 43.1 9 Mar 15.3 +0.7 0.3 19 May 38.8 75.1 low 52%
Leinster Aero 29.1 +1.6 42.6 11 Mar 15.3 +0.3 2.0 18 May 91.6 77.7 average 118%
Leonora Aero 28.8 +1.3 42.8 9 Mar 15.0 +0.3 -0.3 19 May 37.4 70.6 average 53%
Munglinup West 23.6 -0.3 36.3 15 Mar 11.0 -0.9 2.6 20 Apr 59.2 104.3 low 57%
Norseman Aero 25.0 0.0 36.9 11 Apr 9.9 -0.8 -1.4 3 May 95.2 74.1 high 128%
Salmon Gums Res.Stn. 24.1 +0.4 35.8 20 Mar 9.1 -0.8 -1.6 3 May 48.6 86.7 low 56%
Southern Cross Airfield 26.1 +0.1 39.0 10 Apr 10.7 -0.8 -3.4 19 May 70.2 86.1 average 82%
North East (district 13)
Carnegie 32.2 +2.3 45.5 10 Mar     8.2 12 May 22.3 70.9 low 31%
Giles Meteorological Office 32.0 +3.0 44.6 11 Mar 17.1 +1.0 2.8 12 May 6.6 73.4 v low 9%
Telfer Aero 36.1 +2.4 46.3 10 Mar 21.5 +1.4 8.8 12 May 25.0 107.9 low 23%
Warburton Airfield 32.0 +2.7 44.8 10 Mar 16.9 +1.6 0.3 19 May 7.6 64.3 low 12%
Wiluna 30.7 +1.7 44.0 11 Mar     2.0 18 May 33.9 90.5 low 37%
Wiluna Aero 31.1   44.2 9 Mar 16.2   2.1 18 May 32.0


Offshore Islands (district 200)
Adele Island 31.2   33.1 5 Mar 27.0   21.9 17 Mar



Browse Island 30.5   34.0 7 Mar 27.4   22.7 16 Mar



Rowley Shoals 29.7   32.8 4 Mar     21.6 20 Mar



Varanus Island 31.2 +0.5 37.4 10 Mar 25.9 +0.3 21.5 13 May 38.2 95.7 average 40%

Notes

The Seasonal 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 2 pm on Saturday 1 June 2019. 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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