Western Australia in spring 2016: Dry and cool in the south; hot in the far north

The southern half of Western Australia saw mostly below average rainfall in spring, with above average rainfall recorded in parts of northern WA. Much of the Kimberley recorded above average daytime and overnight spring temperatures following an exceptionally warm winter, but a cool spring in terms of minimum temperatures was recorded in the South West Land Division (SWLD).

Below average spring rainfall in the south; above average in parts of the north

  • Rainfall in spring 2016 for WA was close to average, but the driest for nine years, since 2007
  • Spring rainfall was below average for the southern half WA including the SWLD
  • Forrest in the Eucla and Southern Cross in the Central Wheat Belt had their record low spring rainfall; a number of sites had their lowest for at least 20 years

Warm in the far north; cool nights in the SWLD

Early spring frost damage in the SWLD

  • Freezing temperatures caused significant frost damage to crops in parts of the SWLD in mid-to-late September

Unprecedented wet spring at Christmas Island

Further information

Media
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Enquiries

Extremes in spring 2016
Hottest day 45.3 °C at Mandora on 6 Nov
Warmest days on average 39.9 °C at Wyndham Aero
Coolest days on average 17.9 °C at Shannon
Coldest day 10.0 °C at Wongan Hills on 12 Sep
Coldest night -4.5 °C at Eyre on 18 Sep
Coolest nights on average 4.6 °C at Newdegate Research Station
Warmest nights on average 27.6 °C at Troughton Island
Warmest night 31.5 °C at Mandora on 6 Nov
31.5 °C at Argyle Aerodrome on 8 Nov
31.5 °C at Warmun on 9 Nov
Warmest on average overall 32.6 °C at Wyndham Aero
Coolest on average overall 12.9 °C at Shannon
Wettest overall 293.1 mm at Pemberton
Wettest day 63.0 mm at Kimberley Downs on 23 Nov
Strongest wind gust 119 km/h at Cape Naturaliste on 1 Oct

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 spring daily rainfall
New record
(mm)
Old
record
Years of
record
Christmas Island Aero 195.8 on 13 Oct 182.0 on 30 Oct 1978 44



Record highest spring total rainfall
New record
(mm)
Old
record
Years of
record
Average for
spring
Christmas Island Aero 2067.8 923.6 in 1975 42 293.5



Record lowest spring total rainfall
New record
(mm)
Old
record
Years of
record
Average for
spring
Forrest 13.4 14.0 in 2007 22 47.8
Southern Cross Airfield 16.0 16.6 in 2000 20 54.5

Lowest spring total rainfall for at least 20 years
Observed
(mm)
Most recent
lower
Average for
spring
Westonia 15.4 12.5 in 1961 56.7
Yeelirrie 0.8 0.0 in 1961 24.1
Paynes Find 7.2 0.0 in 1967* 35.7
Karara 15.3 14.8 in 1935* 44.0
Bulga Downs 6.6 2.6 in 1994 26.8
Seven Oaks 16.8 16.0 in 1989* 51.4

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




Record lowest spring daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
spring
Wongan Hills 10.0 on 12 Sep 10.1 on 19 Sep 1992 50 25.0



Record highest spring mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
spring
Troughton Island 33.0 = 33.0 in 1998 36 31.6
Derby Aero 38.0 = 38.0 in 2008 31 36.9
Kununurra Aero 39.2 = 39.2 in 2013 30 38.1



Record highest spring daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
spring
Cape Leeuwin 21.5 on 15 Nov 20.7 on 30 Nov 2010 110 12.9
Broome Airport 30.1 on 19 Nov 29.6 on 21 Nov 2014 78 22.0
Bidyadanga 29.0 on 19 Nov = 29.0 on 26 Nov 2006 58 20.9
Cygnet Bay 29.0 on 5 Nov 28.5 on 26 Nov 1998 32 21.1
Derby Aero 29.6 on 30 Nov 29.1 on 11 Nov 2007 32 22.7
Curtin Aero 28.8 on 28 Nov 28.5 on 23 Nov 2009 25 21.3



Record lowest spring temperature
New record
(°C)
Old
record
Years of
record
Average for
spring
Wagin -1.4 on 29 Sep -1.3 on 11 Sep 1977 44 8.3
Jarrahwood -2.1 on 29 Sep -2.0 on 12 Sep 2004 38 7.8
Esperance Aero 2.7 on 26 Sep 3.0 on 11 Sep 2004 25 10.1
Forrest -0.4 on 18 Sep 0.4 on 11 Sep 2004 24 10.7
Gosnells City 2.0 on 15 Sep 2.6 on 10 Sep 2004 24 12.2
Morawa Airport 0.6 on 24 Sep 0.8 on 4 Sep 2009 20 11.1



Record highest spring mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
spring
Broome Airport 24.2 23.6 in 1998 77 22.0
Bidyadanga 23.2 23.0 in 2006 55 20.9
Troughton Island 27.6 27.2 in 2010 36 26.1
Cygnet Bay 23.3 22.4 in 2010 28 21.1



Record lowest spring mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
spring
Balladonia 7.4 = 7.4 in 1905 90 9.0
Corrigin 7.1 = 7.1 in 1950 68 8.5
Brookton 6.3 = 6.3 in 1968 48 8.0
Ongerup 6.8 6.9 in 1968 48 8.5
Hyden 7.3 = 7.3 in 1971 43 8.6
Jarrahwood 6.3 6.4 in 2010 33 7.8
Medina Research Centre 9.7 9.8 in 1987 29 11.0
Forrest 9.0 9.7 in 2001 23 10.7
Jacup 6.6 6.8 in 2005 23 8.0
Leinster Aero 13.4 = 13.4 in 2001 22 14.7
Gosnells City 10.0 10.9 in 2005 21 12.2
Gingin Aero 8.0 8.3 in 2005 20 9.6
Newdegate Research Station 4.6 5.5 in 2010 20 7.4
Rocky Gully 7.1 = 7.1 in 2005 20 8.4
York 5.8 6.1 in 2005 20 7.8

Lowest spring mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
spring
Narrogin 6.9 6.5 in 1964* 7.9
Pearce RAAF 8.9 8.5 in 1974 10.5
Perth Airport 9.5 9.1 in 1974 10.6
Beverley 6.8 6.7 in 1974* 8.5
Dwellingup 7.6 7.5 in 1971* 8.3
Eucla 10.4 9.1 in 1981* 11.3
Narembeen 7.7 7.4 in 1978* 9.2
Wagin 6.8 6.5 in 1992 8.3
Paynes Find 10.6 10.2 in 1993 11.7

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




Record highest spring mean temperature
New record
(°C)
Old
record
Years of
record
Average for
spring
Broome Airport 29.0 28.6 in 2008 77 27.4
Bidyadanga 29.2 29.1 in 2006 54 27.4
Troughton Island 30.3 30.0 in 1998 36 28.9
Derby Aero 31.2 30.8 in 1998 31 29.8

Highest spring mean temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
spring
Kununurra Aero 31.4 31.5 in 1992 30.5




Summary statistics for spring 2016
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
spring
2016
Diff
from
average
Highest for
spring
2016
Mean for
spring
2016
Diff
from
average
Lowest for
spring
2016
Total for
spring
2016
Average
for
spring
Rank of
spring
2016
Fraction of
spring
average
North Kimberley (district 01)
Doongan 37.0 +0.7 41.2 5 Nov     15.5 4 Sep 164.2 156.3 average 105%
Kalumburu 37.9 +1.4 41.0 29 Sep 23.4 +1.4 17.0 7 Oct 161.0 123.7 high 130%
Troughton Island 33.0 +1.4 35.5 14 Oct 27.6 +1.5 23.1 3 Nov 24.4 13.0 high 188%
Truscott 34.9 +0.7 37.9 15 Oct 25.6 +1.5 21.6 7 Oct 18.0 46.7 average 39%
Wyndham Aero 39.9 +0.9 44.5 30 Nov 25.3 +1.0 18.0 6 Oct 89.2 80.8 average 110%
East Kimberley (district 02)
Argyle Aerodrome 38.4 +0.5 43.1 30 Oct 25.5 +1.0 19.7 6 Sep 120.6 96.8 average 125%
Halls Creek Airport 37.0 +0.5 41.9 29 Nov 22.7 +0.7 16.3 3 Sep
Kununurra Aero 39.2 +1.1 43.8 30 Nov 23.5 +0.7 16.1 15 Oct 99.0 79.6 average 124%
Warmun 38.9 +0.8 44.0 30 Nov 23.3 +0.9 15.8 7 Oct 92.9 88.7 average 105%
West Kimberley (district 03)
Bidyadanga 35.2 +1.2 43.4 6 Nov 23.2 +2.3 15.7 3 Sep 13.0 9.7 high 134%
Broome Airport 33.7 +0.9 42.6 5 Nov 24.2 +2.2 15.4 3 Sep 0.8 12.0 low 7%
Cygnet Bay 34.8 +0.8 38.6 4 Nov 23.3 +2.2 15.5 3 Sep 5.6 8.5 high 66%
Derby Aero 38.0 +1.1 44.0 14 Nov 24.3 +1.6 17.3 3 Sep 15.0 16.3 average 92%
Fitzroy Crossing Aero 39.6 +0.2 45.1 5 Nov 22.7 +0.3 15.0 21 Sep 58.6 48.7 high 120%
De Grey (district 04)
Bedout Island 30.8   38.5 6 Nov 24.2   18.0 1 Oct
Karratha Aero 33.4 +0.1 43.5 6 Nov 20.6 +0.3 13.1 2 Sep 0.2 3.2 average 6%
Legendre Island 30.2   41.5 6 Nov 22.5   18.2 2 Sep
Mandora 36.0 +0.5 45.3 6 Nov 20.2 +1.3 11.8 11 Sep 15.6 8.7 high 179%
Marble Bar 37.8 -0.2 45.0 20 Nov 21.7 +0.9 12.6 4 Oct 13.0 17.3 average 75%
Port Hedland Airport 35.4 +0.9 44.9 6 Nov 20.4 +2.0 13.6 4 Oct 9.0 4.8 high 188%
Roebourne Aero 36.5 0.0 45.1 7 Nov 19.3 +0.1 10.8 4 Oct 7.4 6.9 average 107%
Fortescue (district 05)
Barrow Island Airport 29.2 +0.2 37.3 28 Nov 21.4 0.0 15.7 15 Sep 9.6 4.9 high 196%
Learmonth Airport 32.2 0.0 41.8 28 Nov 15.9 -0.3 8.6 21 Sep 0.4 5.3 average 8%
Mardie 34.4 -0.2 44.1 6 Nov 18.4 +1.1 11.5 13 Sep 0.2 3.7 average 5%
Onslow Airport 33.0 +0.6 43.4 6 Nov 18.7 +0.9 13.2 3 Sep 1.2 5.1 average 24%
Wittenoom 35.5 +0.6 42.9 20 Nov 20.9 +0.5 10.9 2 Sep 11.2 16.7 average 67%
West Gascoyne (district 06)
Carnarvon Airport 27.2 +1.2 40.1 24 Nov 16.0 -0.3 7.6 29 Sep 3.2 14.9 low 21%
Denham 25.5 -0.3 39.0 24 Nov     12.5 1 Nov 6.4 17.0 low 38%
Murchison 29.7 -0.7 41.0 5 Nov 13.1 -0.1 4.0 18 Sep 12.6 19.1 low 66%
Shark Bay Airport 28.2 -0.1 40.5 24 Nov 14.6 -0.7 7.1 29 Sep 5.0 14.9 v low 34%
East Gascoyne (district 07)
Newman Aero 33.6 -0.8 41.8 30 Nov 16.4 -0.6 6.1 21 Sep 9.6 22.9 average 42%
Paraburdoo Aero 34.1 -1.2 42.4 29 Nov 17.4 -0.4 8.5 25 Sep 8.6 15.7 average 55%
Murchison (district 07A)
Meekatharra Airport 29.9 +0.3 41.5 28 Nov 14.9 -0.3 5.9 17 Sep 11.2 22.7 average 49%
Mount Magnet Aero 28.6 -0.4 40.9 28 Nov 13.4 -0.9 3.9 29 Sep 13.6 26.2 low 52%
Paynes Find 27.7 -0.1 40.2 15 Nov 10.6 -1.1 0.4 17 Sep 7.2 35.7 v low 20%
North Coast (district 08)
Dalwallinu 25.4 -0.6 40.2 5 Nov 8.2 -1.8 0.3 29 Sep 22.6 51.2 v low 44%
Geraldton Airport 24.7   42.0 14 Nov 9.9   2.5 18 Sep
Kalbarri 26.1 -0.1 40.8 14 Nov 12.3 -0.5 5.2 20 Sep 21.8 45.2 low 48%
Morawa Airport 27.3 -0.6 41.1 5 Nov 9.7 -1.4 0.6 24 Sep 24.0 43.2 low 56%
Mullewa 27.5 +0.2 41.5 5 Nov 10.9 -0.5 2.7 17 Sep 18.1 43.4 low 42%
North Island 23.5 -0.2 33.4 14 Nov 16.5 -0.8 10.7 12 Oct 17.2 34.9 low 49%
Wongan Hills 24.8 -0.2 40.0 5 Nov 8.7 -1.6 0.8 18 Sep 42.6 61.8 low 69%
Central Coast (district 09)
Bickley 20.3 -1.0 35.1 26 Nov 9.0 -1.0 2.1 29 Sep 183.4 232.4 low 79%
Garden Island HSF 19.7 -1.6 34.2 26 Nov 12.6 -1.2 6.8 18 Sep 127.8 119.7 average 107%
Gingin Aero 23.6 -0.8 39.6 26 Nov 8.0 -1.6 0.6 18 Sep 102.0 138.4 low 74%
Gosnells City 23.4 -0.9 37.8 26 Nov 10.0 -2.2 2.0 15 Sep
Jandakot Aero 22.3 -0.8 37.9 26 Nov 9.0 -1.2 1.7 18 Sep 141.0 163.1 average 86%
Jurien Bay 23.4 -0.1 40.0 14 Nov 10.7 -0.9 3.4 29 Sep 48.1 87.9 low 55%
Karnet 20.1 -0.9 35.0 15 Nov 8.0 -1.3 0.6 24 Sep 224.7 258.3 average 87%
Lancelin 21.9 -0.8 38.5 14 Nov 12.3 +0.1 5.6 15 Sep 85.7 105.4 average 81%
Medina Research Centre 22.6 -0.5 39.0 26 Nov 9.7 -1.3 3.0 18 Sep 152.1 148.8 average 102%
Pearce RAAF 23.6 0.0 39.9 26 Nov 8.9 -1.6 2.2 1 Sep 102.2 127.8 average 80%
Perth Airport 22.9 -0.1 38.2 26 Nov 9.5 -1.1 3.1 18 Sep 105.2 142.8 low 74%
Perth Metro 22.7 -0.8 38.2 26 Nov 10.6 -1.2 3.7 18 Sep 120.6 149.9 low 80%
Rottnest Island 20.0 -0.8 35.9 26 Nov 13.5 -0.8 8.0 19 Sep 102.0 103.7 average 98%
Swanbourne 21.4 -1.2 37.5 14 Nov 11.9 -0.8 5.9 29 Sep 138.6 151.0 average 92%
South Coast (district 09A)
Albany 18.2 -0.5 39.0 15 Nov 10.7 0.0 6.0 24 Sep 188.3 225.1 average 84%
Albany Airport 19.0   38.8 15 Nov 8.3   3.3 24 Sep 190.0
Bridgetown 19.8 -1.1 34.5 26 Nov 6.1 -1.4 -1.9 17 Sep
Bunbury 20.3 -1.1 32.7 26 Nov     0.3 17 Sep 119.6 140.1 average 85%
Busselton Aero 20.4 -1.2 33.4 26 Nov 8.1 -1.0 0.9 17 Sep 100.6 133.3 low 75%
Cape Leeuwin 18.3 -0.2 33.3 14 Nov 12.5 -0.4 6.4 29 Sep 162.0 191.9 low 84%
Cape Naturaliste 19.5 +0.3 31.8 26 Nov 10.6 -0.7 5.4 21 Oct 95.0 151.4 v low 63%
Collie East 20.9 -1.0 35.1 26 Nov 6.0 -1.7 -1.4 17 Sep 137.8 165.6 low 83%
Donnybrook 21.4 -0.2 36.6 27 Nov 8.1 -0.6 1.4 24 Sep 159.3 199.1 low 80%
Dwellingup 20.3 -0.1 35.8 26 Nov 7.6 -0.7 0.6 24 Sep 203.0 256.6 low 79%
Esperance 20.9 -0.4 37.7 27 Nov 10.4 -0.7 4.9 26 Sep 152.4 142.5 average 107%
Esperance Aero 21.4 -0.2 38.2 27 Nov 8.9 -1.2 2.7 26 Sep 137.2 140.5 average 98%
Hopetoun North 20.9 -0.8 40.5 15 Nov 9.8 -0.6 4.1 26 Sep 126.0 129.1 average 98%
Jarrahwood 20.6 -0.4 34.2 26 Nov 6.3 -1.5 -2.1 29 Sep 169.6 204.9 low 83%
Mandurah 21.0 -1.0 36.5 26 Nov 12.3 -1.4 6.2 29 Sep 88.0 125.4 low 70%
Manjimup 19.3 +0.2 34.9 15 Nov 7.8 -0.8 1.6 17 Sep 210.6 230.4 average 91%
North Walpole 18.0 -1.2 31.2 14 Nov 9.4 -1.2 4.7 15 Sep 256.8 246.6 average 104%
Rocky Gully 18.8 -0.9 37.2 15 Nov 7.1 -1.3 1.4 17 Sep 176.2 190.8 low 92%
Shannon 17.9 -1.3 34.2 15 Nov 7.9 -0.7 1.4 29 Sep 216.2 250.5 average 86%
Witchcliffe 19.0 -1.0 34.4 26 Nov 8.7 -1.0 1.5 17 Sep 223.2 213.8 average 104%
North Central (district 10)
Bencubbin 24.8 -0.3 39.5 15 Nov 9.3 -0.8 0.0 24 Sep 25.0 51.2 low 49%
Cunderdin Airfield 25.1 -0.6 40.9 15 Nov 6.5 -2.0 -2.3 17 Sep 29.8 59.5 low 50%
Merredin 24.9 +0.2 39.2 27 Nov 8.7 -1.2 -0.5 26 Sep 33.9 58.8 low 58%
Northam 24.2 -0.2 39.3 5 Nov 7.9 -1.5 -0.2 18 Sep 55.2 74.3 average 74%
York 24.6 -0.3 40.1 15 Nov 5.8 -2.0 -2.0 29 Sep 54.5 75.9 low 72%
South Central (district 10A)
Beverley 24.2 -0.3 39.6 15 Nov 6.8 -1.7 -1.2 29 Sep 47.3 74.7 low 63%
Brookton 23.2 -0.2 39.4 15 Nov 6.3 -1.7 -1.0 15 Sep 56.3 78.2 low 72%
Corrigin 23.7 +0.5 40.0 15 Nov 7.1 -1.4 -2.1 29 Sep 40.8 67.7 low 60%
Hyden 24.8 +0.2 40.2 27 Nov 7.3 -1.3 -1.4 29 Sep 22.8 68.7 v low 33%
Jacup 21.3 -0.5 37.9 15 Nov 6.6 -1.4 1.2 24 Sep 111.4 115.7 average 96%
Katanning 20.6 -1.3 38.6 15 Nov 6.4 -1.6 -0.7 21 Oct 70.6 109.3 low 65%
Lake Grace 22.6 -0.7 39.2 15 Nov 7.1 -2.1 -0.8 17 Sep 33.0 80.5 low 41%
Narembeen 24.8 0.0 39.5 15 Nov 7.7 -1.5 -1.2 17 Sep 33.6 61.8 low 54%
Narrogin 21.6 +0.1 38.8 15 Nov 6.9 -1.0 -1.0 29 Sep 65.8 96.0 low 69%
Newdegate Research Station 22.5 -0.7 39.4 15 Nov 4.6 -2.8 -2.6 21 Oct 49.6 78.5 low 63%
Ongerup 21.3 +0.1 38.2 15 Nov 6.8 -1.7 1.0 14 Sep 69.4 97.4 average 71%
Ravensthorpe 21.8 -0.6 38.0 15 Nov 8.2 -1.0 1.5 26 Sep 99.7 110.0 average 91%
Wagin 21.8 -0.2 38.5 15 Nov 6.8 -1.5 -1.4 29 Sep 63.6 88.1 low 72%
Wandering 21.6 -1.2 38.3 15 Nov 5.1 -1.8 -1.9 29 Sep 116.2 108.7 average 107%
Eucla (district 11)
Balladonia 25.4 +0.3 41.5 6 Nov 7.4 -1.6 -0.8 26 Sep 22.6 66.7 v low 34%
Eucla 23.9 +1.0 41.0 16 Nov 10.4 -0.9 2.6 25 Sep 33.0 58.5 low 56%
Eyre 24.5 +1.5 44.0 16 Nov 8.0 -2.0 -4.5 18 Sep 43.1 64.2 average 67%
Forrest 26.6 -0.7 41.6 16 Nov 9.0 -1.7 -0.4 18 Sep 13.4 47.8 lowest 28%
Red Rocks Point 23.2 +0.6 43.0 16 Nov 10.7 -1.7 3.6 15 Sep 53.6 66.4 low 81%
South East (district 12)
Bulga Downs 28.7 -1.0 41.8 28 Nov 11.8 -1.7 1.1 15 Sep 6.6 26.8 low 25%
Kalgoorlie-Boulder Airport 25.9 +0.1 41.6 6 Nov 10.5 -0.6 -0.2 17 Sep
Leinster Aero 28.8 -0.6 41.5 28 Nov 13.4 -1.3 3.5 17 Sep 1.0 32.5 v low 3%
Leonora Aero 28.5   42.0 29 Nov 13.3   3.9 2 Sep 7.4 39.7 v low 19%
Munglinup West 22.1 -1.2 38.5 15 Nov 7.8 -1.7 1.3 24 Sep 82.4 112.2 average 73%
Norseman Aero 25.2 -0.5 41.8 6 Nov 7.5 -1.9 -2.9 26 Sep 22.2 74.7 v low 30%
Salmon Gums Res.Stn. 23.8 +0.4 39.9 27 Nov 6.3 -1.6 -2.1 14 Sep 42.0 86.0 low 49%
Southern Cross Airfield 25.7 -0.4 39.7 27 Nov 7.9 -1.5 -2.9 17 Sep 16.0 54.5 lowest 29%
Yeelirrie 29.5 -0.2 41.0 29 Nov 11.4 -0.9 0.0 15 Sep 0.8 24.1 v low 3%
North East (district 13)
Carnegie 31.4 -1.1 42.1 28 Nov 15.0 -0.8 5.0 20 Sep 23.9 22.6 average 106%
Giles Meteorological Office 30.5 -0.7 40.5 9 Nov 15.4 -1.3 3.1 15 Sep 34.2 54.2 average 63%
Telfer Aero 36.3 -0.2 44.2 7 Nov 21.2 +0.8 10.5 30 Sep 5.0 21.0 low 24%
Warburton Airfield 30.8 -0.7 41.8 9 Nov 15.1 -0.3 0.9 15 Sep 29.2 45.2 average 65%
Wiluna     42.0 28 Nov 14.0 +0.1 4.0 18 Sep 60.7 24.0 v high 253%
Offshore Islands (district 200)
Browse Island 30.7   33.4 27 Nov 27.4   22.7 6 Sep
Christmas Island Aero 27.1 +0.3 29.2 16 Nov 23.2 +0.6 20.9 14 Nov 2067.8 293.5 highest 705%
Cocos Island Airport 28.9 +0.2 30.5 16 Oct 24.8 +0.6 22.4 9 Sep 490.8 278.5 high 176%
Rowley Shoals 28.4   32.9 6 Nov 26.3   23.1 2 Sep
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.

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 11 am on Thursday 1 December 2016. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

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.

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.

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