Western Australia in winter 2016: Warm and wet in the north; cold and drier than normal in the southwest

Rainfall in winter 2016 was above average for much of Western Australia, with below average rainfall mostly confined to parts of the southwest. Winter days were very warm in the north, but were cooler than normal in large parts of southern WA. Overnight temperatures were warmer than normal for most of the State, with the exception of much of the southwest which saw cooler than normal nights. For WA as a whole, the mean minimum temperature in winter 2016 was the seventh-highest on record.

Above average rainfall for most of WA, below average rainfall in the southwest

  • State-wide average rainfall was approximately 50% above normal; the wettest winter for 18 years, since 1998
  • The Lower Southwest (southwest of a line from Jurien Bay to Bremer Bay) saw below average rainfall
  • A surface trough moving across northwest WA in early July produced record high winter daily rainfall in the Pilbara and Gascoyne
  • A pre-frontal cloudband produced winter daily rainfall records in the South West in mid-July; localised flooding was reported in the Vasse River catchment
  • Sites across the north, and through central and southeast WA recorded their wettest winter for 36 years or more

Warm in the north, cold in the southwest

Further information

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Extremes in winter 2016
Hottest day 38.3 °C at Kalumburu on 24 Jul
Warmest days on average 34.4 °C at Kalumburu
Coolest days on average 13.9 °C at Katanning
Coldest day 8.8 °C at Rocky Gully on 8 Aug
Coldest night -4.0 °C at Eyre on 13 Aug
Coolest nights on average 3.6 °C at Wandering
Warmest nights on average 24.8 °C at Troughton Island
20.5 °C at Truscott
Warmest night 28.8 °C at Troughton Island on 6 Jun
26.1 °C at Wyndham Aero on 31 Aug
Warmest on average overall 27.7 °C at Troughton Island
26.4 °C at Truscott
Coolest on average overall 9.4 °C at Newdegate Research Station
9.4 °C at Wandering
Wettest overall 710.4 mm at Karri Valley Resort
Wettest day 113.2 mm at Jarrahwood on 16 Jul
Strongest wind gust 130 km/h at Cape Leeuwin on 29 Jul

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 winter daily rainfall
New record
(mm)
Old
record
Years of
record
Boolardy 90.4 on 6 Jul 65.8 on 28 Aug 1941 117
Yoongarillup 107.0 on 16 Jul 96.6 on 18 Jul 1995 60
One Tree Bridge (Hazelmere) 77.4 on 16 Jul 70.0 on 13 Jul 1997 47
Jarrahwood 113.2 on 16 Jul 93.4 on 31 Jul 2015 42
San Angelo 69.2 on 7 Jun 57.0 on 19 Aug 2009 40
Mulyering 95.0 on 4 Jul 78.0 on 8 Jun 1993 25
Ludlow 61.2 on 15 Jul 60.6 on 30 Jul 1986 22



Record highest winter total rainfall
New record
(mm)
Old
record
Years of
record
Average for
winter
Munglinup 259.6 243.7 in 1973 26 170.3
Jacup 243.0 199.2 in 2005 22 144.5

Highest winter total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
winter
Giles Meteorological Office 140.6 158.3 in 1968 40.0
Three Rivers 128.9 149.5 in 1973* 42.2
Gairdner 230.3 298.7 in 1978* 145.0
Mardie 208.6 266.4 in 1980 59.0
Sturt Creek 66.0 171.8 in 1978* 16.0
Lorinna 245.8 281.2 in 1989* 183.7
Mundrabilla Station 120.4 141.4 in 1993 71.8
Esperance Downs Research Stn 234.8 325.6 in 1989* 183.7
Warburton Airfield 89.0 194.5 in 1978* 40.8
Byro 94.2 209.1 in 1980* 75.0
Jarrahwood 656.8 775.9 in 1996 483.7
Onslow Airport 208.0 220.7 in 1973* 75.7

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





Record highest winter temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Christmas Island Aero 29.8 on 19 Jun 29.5 on 19 Aug 1984 42 26.5



Record lowest winter daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Badgingarra Research Stn 10.3 on 7 Jun = 10.3 on 1 Aug 1987 50 18.2
Jurien Bay 12.4 on 7 Jun 13.0 on 10 Jul 2011 47 20.1
Gingin Aero 12.1 on 7 Jun 12.6 on 11 Jul 2011 21 19.0



Record highest winter mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Warmun 32.7 32.4 in 1998 53 30.4
Troughton Island 30.6 30.1 in 1998 36 28.7
Derby Aero 32.8 32.7 in 1996 31 31.3
Kununurra Aero 33.1 = 33.1 in 2013 29 31.2
Doongan 31.9 31.7 in 1998 25 30.1

Highest winter mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
winter
Christmas Island Aero 27.6 27.7 in 1984* 26.5

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




Record lowest winter mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Badgingarra Research Stn 16.7 = 16.7 in 1968 46 18.2
Narembeen 16.0 = 16.0 in 1993 41 17.3
Bickley 14.8 = 14.8 in 1998 22 15.8
Jacup 15.0 15.4 in 1998 22 16.5
Perth Metro 18.0 18.2 in 1998 22 19.0
Swanbourne 17.7 18.1 in 1998 22 19.0
Bunbury 16.7 17.2 in 2009 20 17.8
Mount Magnet Aero 18.4 18.5 in 1998 20 20.0
Newdegate Research Station 14.7 15.1 in 2003 20 16.1
Rocky Gully 14.1 14.4 in 2009 20 15.3
York 16.7 16.9 in 1998 20 17.9

Lowest winter mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
winter
Northam 16.7 16.3 in 1981* 17.6
Balladonia 17.5 16.9 in 1986 18.3
Beverley 16.3 16.0 in 1986* 17.6
Brookton 15.5 =15.5 in 1986* 16.7
Hyden 16.0 15.6 in 1986* 17.2
Bencubbin 15.8 15.3 in 1986* 17.2
Donnybrook 16.5 16.3 in 1990 17.1
Esperance 16.8 16.3 in 1990 17.7
Kalgoorlie-Boulder Airport 16.6 15.9 in 1990 17.7
Karnet 15.3 15.0 in 1990 15.9
Learmonth Airport 23.9 23.8 in 1990 25.2
Ravensthorpe 15.8 15.5 in 1990 17.0
Wagin 14.9 14.7 in 1990 16.0
Pearce RAAF 17.8 16.9 in 1990* 18.4
Jandakot Aero 17.8 17.1 in 1990* 18.6
Cape Leeuwin 16.6 16.5 in 1993 16.7
Cape Naturaliste 16.8 16.6 in 1993 16.7
Corrigin 15.4 15.2 in 1993 16.1
Dwellingup 15.3 15.1 in 1993 15.6
Esperance Aero 16.0 15.5 in 1993 17.0
Manjimup 14.5 14.3 in 1993 14.9
Merredin 16.0 15.9 in 1993 17.1
Perth Airport 17.9 17.8 in 1993 18.5
Rottnest Island 17.3 17.1 in 1993 18.2
Wongan Hills 16.5 =16.5 in 1993 17.8
Denham 21.5 21.4 in 1993* 22.4
Eyre 18.7 18.3 in 1993* 18.9
Gosnells City 18.3 18.2 in 1993* 19.3
Lancelin 18.8 18.2 in 1993* 19.6
Narrogin 14.7 14.5 in 1993* 15.2
Salmon Gums Res.Stn. 15.9 15.4 in 1990* 16.8
Medina Research Centre 18.1 17.7 in 1993* 18.9

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




Record highest winter daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Broome Airport 24.8 on 7 Jun = 24.8 on 3 Jun 1978 78 14.6
Port Hedland Airport 24.7 on 5 Jun 24.3 on 8 Jun 1998 69 13.2
Mardie 24.0 on 4 Jun 23.2 on 7 Jun 1987 59 12.7
Mandora 24.1 on 7 Jun 23.3 on 2 Jun 1963 54 13.3
Telfer Aero 23.0 on 2 Jun 22.5 on 5 Jun 1975 43 11.7
Troughton Island 28.8 on 6 Jun 27.3 on 1 Jun 2014 37 22.7
Derby Aero 25.0 on 3 Jun 24.8 on 6 Jun 1973 32 15.4
Doongan 24.0 on 31 Aug 23.4 on 29 Aug 2010 28 11.4
Karratha Aero 24.1 on 4 Jun 23.5 on 8 Jun 1998 24 14.3
Argyle Aerodrome 26.0 on 14 Aug 25.7 on 27 Aug 2003 23 16.3
Paraburdoo Aero 23.2 on 4 Jun 21.3 on 17 Jun 2010 21 10.6



Record lowest winter temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Rocky Gully -0.4 on 13 Jul -0.3 on 7 Jul 2013 21 7.0



Record highest winter mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Port Hedland Airport 16.3 = 16.3 in 1996 67 13.2
Mardie 15.5 15.3 in 2010 59 12.7
Bidyadanga 17.5 17.4 in 1973 57 14.8
Onslow Airport 15.5 = 15.5 in 2010 50 13.6
Troughton Island 24.8 24.5 in 1958 36 22.7
Cygnet Bay 18.3 17.9 in 2010 28 15.3
Karratha Aero 16.6 16.5 in 2010 22 14.3

Highest winter mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
winter
Broome Airport 17.4 18.0 in 1973 14.6
Carnegie 8.2 9.6 in 1996 6.7
Telfer Aero 13.5 14.2 in 1996 11.7



Record lowest winter mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Bickley 6.8 7.0 in 2006 22 7.7

Lowest winter mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
winter
Rottnest Island 11.9 =11.9 in 1992 12.7
Cape Leeuwin 11.3 =11.3 in 1993 11.6



Record highest winter mean temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Broome Airport 24.2 24.1 in 1973 76 22.0
Warmun 24.5 = 24.5 in 1998 52 22.1
Christmas Island Aero 25.5 25.3 in 1998 41 24.6
Troughton Island 27.7 27.2 in 1998 36 25.7
Derby Aero 25.4 = 25.4 in 1973 31 23.3

Highest winter mean temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
winter
Mandora 23.0 23.5 in 1973* 21.5
Curtin Aero 25.2 25.9 in 1992 23.7

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




Record lowest winter mean temperature
New record
(°C)
Old
record
Years of
record
Average for
winter
Bickley 10.8 11.0 in 1998 22 11.7
Jacup 10.2 10.6 in 2008 22 11.2
Swanbourne 13.7 13.8 in 2001 22 14.5
Newdegate Research Station 9.4 = 9.4 in 2008 20 10.3
Rocky Gully 10.2 10.5 in 2008 20 11.2

Lowest winter mean temperature for at least 20 years
Esperance 12.6 12.2 in 1990 13.2
Ravensthorpe 11.1 10.9 in 1990* 12.0
Cape Leeuwin 13.9 =13.9 in 1993 14.2
Cape Naturaliste 13.6 =13.6 in 1993 13.7
Esperance Aero 11.7 11.6 in 1993 12.5
Manjimup 10.5 =10.5 in 1993 10.9
Rottnest Island 14.6 =14.6 in 1993 15.4
Salmon Gums Res.Stn. 10.3 9.8 in 1990* 10.9

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




Summary statistics for winter 2016
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
winter
2016
Diff
from
average
Highest for
winter
2016
Mean for
winter
2016
Diff
from
average
Lowest for
winter
2016
Total for
winter
2016
Average
for
winter
Rank of
winter
2016
Fraction of
winter
average
North Kimberley (district 01)
Doongan 31.9 +1.8 35.0 6 Jun 13.5 +2.1 3.5 17 Jul 3.4 6.5 average 52%
Kalumburu 34.4 +2.1 38.3 24 Jul 16.6 +2.4 7.8 17 Jul 0.4 4.9 average 8%
Troughton Island 30.6 +1.9 33.9 10 Jun 24.8 +2.1 20.6 16 Jul 0 10.3 lowest 0%
Truscott 32.4 +1.7 35.6 24 Jul 20.5 +1.9 13.2 18 Jul 0 6.3 v low 0%
Wyndham Aero 34.1 +1.8 37.3 24 Jul 18.1 +2.4 7.4 5 Aug 0 6.3 lowest 0%
East Kimberley (district 02)
Argyle Aerodrome 32.0 +1.7 36.8 7 Jun 18.8 +2.5 11.0 17 Jul 3.2 6.0 average 53%
Halls Creek Airport 29.7 +1.6 34.4 10 Aug 15.5 +1.8 6.9 17 Jul 51.2 13.5 high 379%
Kununurra Aero 33.1 +1.9 37.4 7 Jun 16.4 +0.9 7.3 5 Aug 0.4 5.1 average 8%
Warmun 32.7 +2.3 37.3 7 Jun 16.3 +2.6 6.1 5 Aug 9.1 12.2 high 75%
West Kimberley (district 03)
Bidyadanga 31.5 +1.3 35.8 11 Aug 17.5 +2.7 9.6 18 Jul 45.8 30.7 high 149%
Broome Airport 30.9 +1.4 35.1 27 Jul 17.4 +2.8 9.4 18 Jul 53.2 28.3 high 188%
Curtin Aero 32.7 +1.1 36.3 18 Aug 17.6 +1.7 6.7 18 Jul 26.6 19.9 average 134%
Cygnet Bay 30.0 +1.2 34.5 16 Aug 18.3 +3.0 11.4 19 Jul 1.5 33.0 average 5%
Derby Aero 32.8 +1.5 36.5 4 Jun 18.0 +2.6 9.3 19 Jul 23.6 18.0 high 131%
Fitzroy Crossing Aero 32.4 +0.9 37.0 20 Aug 15.2 +2.4 6.6 18 Jul 63.2 18.7 high 338%
De Grey (district 04)
Bedout Island 26.6   31.0 4 Jun 21.3   17.5 2 Aug
Karratha Aero 26.5 -0.5 32.2 3 Jun 16.6 +2.3 9.5 23 Aug 183.8 54.3 v high 338%
Legendre Island 25.5   30.0 6 Jun 19.6   15.0 8 Jun
Mandora 30.7 +1.1 36.0 17 Aug 15.2 +1.9 4.1 16 Jul 17.0 28.9 average 59%
Marble Bar 28.6 +0.5 35.4 17 Aug 15.4 +2.7 7.8 17 Jul 47.4 43.9 average 108%
Pardoo Station     35.5 17 Aug 15.5 +1.8 9.5 27 Jun 58.6 38.6 high 152%
Port Hedland Airport 29.0 +1.0 34.9 17 Aug 16.3 +3.1 10.4 25 Aug 41.2 39.3 average 105%
Roebourne Aero 28.0 -0.7 34.7 31 Jul 15.2 +2.5 6.8 24 Aug 118.6 47.3 high 251%
Fortescue (district 05)
Barrow Island Airport 24.2 -0.2 30.9 4 Jun 18.9 +0.9 13.5 24 Aug 168.0 56.5 high 297%
Learmonth Airport 23.9 -1.3 28.7 20 Jun 13.0 +0.8 5.0 23 Aug
Mardie 27.5 -1.0 33.0 3 Jun 15.5 +2.8 7.6 23 Aug 208.6 59.0 v high 354%
Onslow Airport 25.8 -0.4 31.2 30 Jul 15.5 +1.9 8.9 24 Aug 208.0 75.7 v high 275%
Wittenoom 24.9 -0.4 32.7 3 Jun 13.9 +1.4 7.6 17 Jul 130.4 51.5 v high 253%
West Gascoyne (district 06)
Carnarvon Airport 22.8 -0.2 30.2 14 Aug 11.4 -0.2 4.3 14 Jul 107.9 108.1 average 100%
Denham 21.5 -0.9 26.9 25 Aug 13.7 +0.4 7.5 27 Jun 130.2 116.1 average 112%
Emu Creek Station 25.2 -1.2 31.0 30 Jul 13.3 +1.3 6.8 14 Jul 178.0 70.3 v high 253%
Murchison 20.3 -1.7 29.8 29 Jul 7.8 +0.8 1.5 24 Aug 118.5 78.3 high 151%
Shark Bay Airport 22.4 -1.3 28.8 29 Jul 10.9 -0.3 4.5 14 Jul 138.4 95.6 high 145%
East Gascoyne (district 07)
Newman Aero 23.1 -0.9 32.1 3 Jun 9.8 +2.7 1.8 13 Jul 93.2 37.3 v high 250%
Paraburdoo Aero 24.4 -1.5 32.1 3 Jun 12.3 +1.7 5.3 10 Jul 116.6 48.8 high 239%
Murchison (district 07A)
Meekatharra Airport 19.6 -0.5 29.0 3 Jun 8.8 +0.5 1.6 13 Jul
Mount Magnet Aero 18.4 -1.6 28.4 29 Jul 7.9 +0.1 2.1 13 Jul 83.4 67.2 high 124%
North Coast (district 08)
Dalwallinu 16.3 -1.7 24.8 14 Aug 5.6 -0.8 -0.6 2 Aug 122.6 117.8 average 104%
Geraldton Airport 19.3   26.0 2 Jun 8.5   1.9 13 Jul 286.6
Kalbarri 21.6 -0.8 28.1 14 Aug 9.8 -0.4 4.0 23 Aug 234.4 197.2 high 119%
Morawa Airport 18.2 -1.5 27.6 14 Aug 6.2 -0.5 0.6 1 Aug 160.6 116.4 high 138%
North Island 20.7 -1.0 25.5 29 Jul 14.7 -1.1 7.4 3 Aug 170.4 168.9 average 101%
Wongan Hills 16.5 -1.3 25.0 14 Aug 6.1 -0.9 0.0 23 Aug 183.4 191.1 average 96%
Central Coast (district 09)
Badgingarra Research Stn 16.7 -1.5 21.8 3 Jun     2.4 14 Jul 23.4 286.3 lowest 8%
Bickley 14.8 -1.0 21.0 3 Jun 6.8 -0.9 1.5 13 Jul 527.0 585.2 average 90%
Garden Island HSF 17.1 -1.3 21.9 3 Jun 10.8 -0.7 6.0 13 Jul 280.6 313.1 low 90%
Gingin Aero 17.9 -1.1 23.7 3 Jun 6.6 -0.1 -1.2 13 Jul 407.4 345.7 high 118%
Gosnells City 18.3 -1.0 24.9 3 Jun     1.6 13 Jul 374.8 452.0 low 83%
Jandakot Aero 17.8 -0.8 23.5 3 Jun 7.2 +0.1 -1.6 13 Jul 395.4 454.5 average 87%
Jurien Bay 19.5 -0.6 24.9 2 Jun 9.1 -0.6 3.3 24 Aug 343.5 303.7 average 113%
Karnet 15.3 -0.6 21.5 3 Jun 5.8 -0.8 -0.5 24 Jul 513.1 611.8 low 84%
Lancelin 18.8 -0.8 24.4 2 Jun 9.3 -0.9 2.0 13 Jul 375.4 332.8 high 113%
Medina Research Centre 18.1 -0.8 23.8 3 Jun 7.8 -0.7 0.9 1 Aug 343.1 398.0 low 86%
Pearce RAAF 17.8 -0.6 23.5 3 Jun 7.9 -0.7 0.5 13 Jul 342.0 368.7 average 93%
Perth Airport 17.9 -0.6 24.7 3 Jun 7.9 -0.4 0.9 24 Jul 336.0 430.2 low 78%
Perth Metro 18.0 -1.0 24.3 3 Jun 8.1 -0.1 0.6 13 Jul 372.2 474.2 low 79%
Rottnest Island 17.3 -0.9 21.4 3 Jun 11.9 -0.8 8.4 24 Jul 338.2 305.8 average 111%
Swanbourne 17.7 -1.3 23.1 3 Jun 9.6 -0.5 3.4 13 Jul 440.8 389.4 high 113%
South Coast (district 09A)
Albany     21.6 3 Jun 9.2 +0.6 4.8 6 Aug 354.3 400.7 average 88%
Albany Airport 15.8   21.1 16 Jul 7.0   1.0 13 Jul
Bridgetown 15.2 -1.1 20.8 3 Jun 4.7 -0.2 -2.6 24 Aug 373.0 347.2 average 107%
Bunbury 16.7 -1.1 20.6 2 Jun 6.9 -0.7 -1.1 13 Jul 364.6 393.8 average 93%
Busselton Aero 16.5 -0.9 20.1 3 Jun 6.9 -0.3 0.9 1 Aug 426.2 370.7 high 115%
Cape Leeuwin 16.6 -0.1 22.1 3 Jun 11.3 -0.3 7.1 24 Aug 449.4 491.3 average 91%
Cape Naturaliste 16.8 +0.1 21.8 3 Jun 10.3 -0.4 5.5 4 Jul 376.6 435.4 low 86%
Collie East 15.9 -1.1 21.8 3 Jun 4.0 -0.3 -3.7 13 Jul 347.0 350.0 average 99%
Donnybrook 16.5 -0.6 22.1 3 Jun 6.0 -0.2 0.6 1 Aug 485.6 522.8 average 93%
Dwellingup 15.3 -0.3 21.3 3 Jun 5.4 -0.4 -1.6 13 Jul 483.2 664.8 low 73%
Esperance 16.8 -0.9 25.3 17 Aug 8.5 -0.2 3.7 2 Jul 230.6 257.9 average 89%
Esperance Aero 16.0 -1.0 24.1 17 Aug 7.5 -0.4 3.0 5 Jul 277.4 215.5 high 129%
Jarrahwood 16.2 -0.7 20.9 28 Jul 4.9 -0.3 -2.5 13 Jul 656.8 483.7 v high 136%
Mandurah 17.1 -1.0 22.4 2 Jun 10.1 -1.0 4.5 13 Jul
Manjimup 14.5 -0.4 20.8 26 Aug 6.4 -0.4 1.1 24 Aug 481.6 480.7 average 100%
North Walpole 15.5 -1.1 21.5 3 Jun 8.7 -0.6 2.6 24 Aug 526.8 490.7 average 107%
Rocky Gully 14.1 -1.2 19.2 3 Jun 6.3 -0.7 -0.4 13 Jul 401.6 287.4 v high 140%
Shannon 14.1 -1.3 19.3 3 Jun 6.8 -0.2 0.4 24 Aug 592.8 470.8 high 126%
Witchcliffe 16.1 -0.8 20.3 3 Jun 8.1 -0.3 1.4 2 Jun 684.0 520.1 high 132%
North Central (district 10)
Bencubbin 15.8 -1.4 25.0 14 Aug 5.6 -0.8 -0.6 1 Aug 77.8 131.2 low 59%
Cunderdin Airfield 16.2 -1.7 23.7 14 Aug 4.7 -0.3 -1.6 23 Aug 130.0 126.6 average 103%
Merredin 16.0 -1.1 25.0 14 Aug 5.2 -0.7 -1.6 1 Aug 124.0 138.5 average 90%
Northam 16.7 -0.9 23.3 3 Jun 4.7 -1.1 -1.8 13 Jul 187.0 222.2 low 84%
York 16.7 -1.2 22.5 3 Jun 3.7 -0.4 -2.7 13 Jul 179.7 185.2 average 97%
South Central (district 10A)
Beverley 16.3 -1.3 22.0 3 Jun 4.4 -1.0 -2.4 13 Jul 160.2 213.3 low 75%
Brookton 15.5 -1.2 21.0 3 Jun 3.9 -1.0 -1.9 1 Aug 158.9 232.8 low 68%
Corrigin 15.4 -0.7 22.4 14 Aug 4.0 -1.2 -2.9 13 Jul 122.5 166.5 low 74%
Hyden 16.0 -1.2 24.0 14 Aug 4.3 -0.7 -2.7 24 Aug 128.5 137.1 average 94%
Jacup 15.0 -1.5 21.2 3 Jun 5.5 -0.5 0.9 1 Aug 243.0 144.5 highest 168%
Katanning 13.9 -1.6 19.2 3 Jun 5.6 -0.7 0.2 13 Jul 130.2 184.0 v low 71%
Lake Grace 14.9 -1.6 21.3 3 Jun 5.0 -0.8 -1.2 1 Aug 115.4 105.1 average 110%
Narembeen 16.0 -1.3 24.4 14 Aug 5.2 -0.5 -1.5 1 Aug 117.8 142.5 low 83%
Narrogin 14.7 -0.5 20.5 3 Jun 4.7 -0.9 -2.2 13 Jul 152.2 239.2 v low 64%
Newdegate Research Station 14.7 -1.4 21.3 3 Jun 4.0 -0.5 -2.5 2 Aug 137.6 143.0 average 96%
Ravensthorpe 15.8 -1.2 23.0 14 Aug 6.3 -0.8 1.0 24 Aug 217.6 135.6 v high 160%
Wagin 14.9 -1.1 20.4 3 Jun 5.4 -0.5 -1.9 13 Jul 133.0 198.2 v low 67%
Wandering 15.1 -1.4 21.1 14 Aug 3.6 -0.6 -3.8 13 Jul 230.4 253.6 low 91%
Eucla (district 11)
Balladonia 17.5 -0.8 30.1 17 Aug 4.9 -0.4 -1.9 2 Aug 79.3 68.2 high 116%
Eucla 18.5 -0.1 29.0 17 Aug 7.7 +0.1 1.3 13 Aug 88.8 81.6 average 109%
Eyre 18.7 -0.2 32.5 17 Aug 5.3 -0.9 -4.0 13 Aug 135.2 105.1 high 129%
Forrest 18.9 -0.7 31.2 17 Aug 5.8 +0.2 -0.7 14 Jul 43.0 44.8 average 96%
Red Rocks Point 18.3 -0.8 31.3 17 Aug 8.4 +0.2 2.5 14 Jul 121.6 115.0 average 106%
South East (district 12)
Bulga Downs 18.0 -2.5 28.5 29 Jul 5.8 0.0 -1.5 3 Aug 93.0 66.4 high 140%
Kalgoorlie-Boulder Airport 16.6 -1.1 26.3 17 Aug 6.2 +0.6 -1.2 23 Jul
Laverton Aero 17.9 -1.3 29.1 17 Aug 7.1 +0.4 0.0 12 Jul 93.8 42.5 high 221%
Leinster Aero 18.5 -1.3 28.3 15 Aug 7.4 +0.4 0.0 13 Jul 72.0 44.5 high 162%
Leonora Aero 18.2   28.0 15 Aug 7.2   0.1 14 Jul 71.6 45.1 high 159%
Munglinup West 16.1 -1.4 24.2 14 Aug 6.3 -0.8 1.8 19 Aug 192.2 126.0 v high 153%
Norseman Aero 16.2 -2.0 26.9 17 Aug 4.1 -0.3 -2.9 1 Aug 105.0 64.2 v high 164%
Salmon Gums Res.Stn. 15.9 -0.9 25.1 17 Aug 4.7 -0.3 -3.1 2 Jul 143.4 109.4 high 131%
Southern Cross Airfield 15.9 -1.8 24.4 14 Aug 4.0 +0.1 -2.9 23 Jul 111.8 92.6 average 121%
Yeelirrie 19.5 -0.8 29.0 15 Aug 5.3 +1.0 -2.7 3 Aug 70.2 52.5 high 134%
North East (district 13)
Carnegie 21.3 -0.9 30.8 17 Aug 8.2 +1.5 0.1 16 Jul 87.6 34.4 high 255%
Giles Meteorological Office 20.6 -0.4 28.0 16 Aug 8.0 +0.1 0.8 14 Jul 140.6 40.0 v high 352%
Telfer Aero 26.8 +0.5 33.6 17 Aug 13.5 +1.8 5.5 17 Jul 10.6 30.9 average 34%
Warburton Airfield 20.7 -0.8 30.3 17 Aug 7.9 +1.4 1.3 21 Aug 89.0 40.8 v high 218%
Offshore Islands (district 200)
Browse Island 29.5   31.4 11 Jun     22.9 17 Jul
Christmas Island Aero 27.6 +1.1 29.8 19 Jun 23.4 +0.7 21.2 24 Aug 856.4 313.3 v high 273%
Cocos Island Airport 28.7 +0.5 30.3 27 Jul 24.9 +0.8 22.2 25 Aug
Rowley Shoals 27.1   30.2 8 Jul 24.7   19.5 16 Aug
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 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. Later information, including data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.

A climate summary is generally published on the first working day of each month.

This statement has been prepared based on information available at 12 pm on Thursday 1 September 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.

The ACORN-SAT dataset is used for temperature area averages.

Further information

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