Western Australia in August 2016: Wet with warm days in the north; cold in the southwest

Rainfall in August 2016 was above average for Western Australia and the wettest August for eleven years. State-wide average maximum and minimum temperatures were both close to normal.

Wet in the north, near average in the southwest

  • Rainfall for WA in August was approximately 27% above normal and the wettest for 11 years, since 2005
  • A Northwest Cloudband brought unseasonal rainfall to the north from the 28th to 31st, with record high August daily rainfall reported at a number of Kimberley sites
  • A few sites in the Kimberley had their wettest August on record as a result of the cloudband late in the month
  • An intense low and a strong cold front brought moderate to heavy rainfall to the south coast of the South West Land Division (SWLD) from the 27th to 30th, with a number of August daily rainfall records recorded in the South East Coastal
  • A number of sites in the South West Land Division recorded their wettest August in at least 20 years

Cooler than normal days and nights in the southwest

  • The mean maximum temperature for WA was near average, but the lowest for 6 years, since 2010
  • The mean maximum temperature for the SWLD was below average and the lowest for 12 years, since 2004
  • Many SWLD locations either had their coldest August days on record or their coldest August days for at least 24 years
  • Rainfall and southerly winds brought a cold day to parts of the Goldfields and South East Coastal on the 22nd and 23rd; Laverton Aerodrome recorded its lowest August maximum temperature on record on the 22nd
  • The mean minimum temperature for WA was close to normal, as was the mean minimum for the SWLD, though it was the coldest August in the SWLD for six years, since 2010
  • Southerly winds brought cold air to southern WA in early and late August with resulting sub-zero temperatures reported, along with a number of record low August temperatures

Further information

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Extremes in August 2016
Hottest day 37.2 °C at Wyndham Aero on the 19th
Warmest days on average 34.4 °C at Wyndham Aero
Coolest days on average 13.7 °C at Katanning
Coldest day 8.8 °C at Rocky Gully on the 8th
Coldest night -4.0 °C at Eyre on the 13th
Coolest nights on average 3.3 °C at Newdegate Research Station
3.3 °C at Southern Cross Airfield
3.3 °C at York
Warmest nights on average 25.2 °C at Browse Island
19.6 °C at Truscott
Warmest night 26.7 °C at Browse Island on the 29th
26.1 °C at Wyndham Aero on the 31th
Warmest on average overall 27.1 °C at Browse Island
25.9 °C at Wyndham Aero
Coolest on average overall 9.0 °C at Newdegate Research Station
Wettest overall 267.5 mm at Pemberton
Wettest day 58.0 mm at Jarrahdale on the 27th
Strongest wind gust 119 km/h at Cape Leeuwin on the 7th

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 August daily rainfall
New record
(mm)
Old
record
Years of
record
Myroodah 38.0 on the 30th 20.6 on the 22nd in 1919 101
Broome Airport 27.0 on the 30th 12.4 on the 15th in 1978 78
Jubilee Downs 18.2 on the 30th 13.5 on the 14th in 1978 78
Derby Aero 21.4 on the 30th 19.0 on the 26th in 2005 60
Udialla 40.2 on the 30th 23.8 on the 26th in 2005 54
Camballin 35.6 on the 30th 17.0 on the 26th in 2005 44
Sophie Downs 13.0 on the 31st 6.5 on the 25th in 2008 35
Kimbolton 26.4 on the 30th 16.8 on the 26th in 2005 31
Kilto Station 37.1 on the 30th 8.2 on the 25th in 2005 29
Munglinup 26.4 on the 30th 25.7 on the 31st in 1973 26
Jacup 39.6 on the 29th 30.0 on the 30th in 2014 23
Fitzroy Crossing Aero 31.6 on the 30th 10.6 on the 2nd in 2010 20



Record highest August total rainfall
New record
(mm)
Old
record
Years of
record
Average for
August
Napier Downs 33.8 30.7 in 1973 87 1.8
Broome Airport 47.6 23.0 in 1978 78 2.2
Jubilee Downs 32.4 26.6 in 1947 78 1.3
Derby Aero 23.6 19.2 in 2005 60 1.2
Udialla 40.2 24.2 in 2005 54 1.6
Camballin 40.6 26.4 in 1978 44 2.3
The Duke 138.8 136.6 in 1985 40 86.0
Sophie Downs 20.0 6.5 in 2008 35 0.8
Kilto Station 37.1 8.2 in 2005 29 2.1
Munglinup 127.6 124.2 in 1992 26 59.7
Jacup 121.0 88.2 in 2003 22 50.9
Rocky Gully 169.6 147.6 in 2003 21 89.2
Fitzroy Crossing Aero 46.0 15.6 in 2010 20 3.3
Shannon 223.2 206.2 in 2004 20 131.2

Highest August total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
August
Myroodah 38.0 39.7 in 1919* 2.0
Anna Plains 28.2 41.2 in 1947* 2.0
Bidyadanga 33.4 38.1 in 1947* 2.3
Mount Barker 140.0 149.8 in 1955 88.9
Pemberton 267.5 388.2 in 1955 169.6
White Gums 100.9 109.4 in 1955 55.3
Kendenup 122.8 139.4 in 1955* 73.5
Telina Downs 116.2 175.7 in 1968* 68.5
Halls Creek Airport 25.0 48.6 in 1973 2.1
Mount Elizabeth 8.4 60.6 in 1973 2.0
Wallal Downs 14.5 20.3 in 1972* 2.1
Christmas Island Aero 132.4 163.8 in 1978* 42.3
Charnley River 9.2 20.4 in 1973* 0.8
Sturt Creek 27.0 42.5 in 1973* 2.1
Flora Valley 21.0 77.7 in 1973* 3.0
Mount Amhurst 25.0 51.3 in 1947* 2.4
Newbicup 128.8 129.6 in 1981 86.5
Kimberley Downs 16.8 54.1 in 1973* 2.1
Mount Barnett 11.2 15.8 in 1978* 1.5
Nannup 178.7 215.4 in 1985* 138.0
Balingup 180.2 187.1 in 1985* 128.0
Chesalon 76.6 97.4 in 1992 43.9
Lorinna 116.8 120.8 in 1992 62.4
Mandora 15.2 18.6 in 1992 2.6
Ravensthorpe 97.6 114.4 in 1992 44.9
Rottnest Island 125.4 126.2 in 1986* 86.1
Gairdner 89.3 124.4 in 1992* 49.6
Jerramungup 85.4 92.6 in 1993 49.5
Northcliffe 253.1 269.1 in 1992* 192.1
Warra Jarra 120.4 156.8 in 1992* 59.9
Chillinup 69.5 98.6 in 1993* 41.6
Nyabing 74.2 89.1 in 1992* 49.3
Pinjarra Refinery 177.6 192.0 in 1992* 124.0
Serpentine 172.2 189.2 in 1977* 139.5
Pingrup 67.0 91.1 in 1992* 40.7

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




Record lowest August daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Laverton Aero 10.7 on the 22nd 11.7 on the 17th in 1992 25 20.9



Record highest August mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Christmas Island Aero 27.5 = 27.5 in 1984 41 26.1



Record lowest August mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Beverley 16.0 16.1 in 1990 46 17.8
Narembeen 16.1 = 16.1 in 1986 45 17.7
Jacup 15.1 15.4 in 1997 23 16.9
Bickley 14.4 14.7 in 2004 22 16.1
Swanbourne 17.4 = 17.4 in 2004 22 19.0
Bunbury 16.4 16.5 in 2004 20 17.7
Gingin Aero 17.6 = 17.6 in 2004 20 19.2
Newdegate Research Station 14.7 14.9 in 2004 20 16.4
York 16.4 16.5 in 2004 20 18.1

Lowest August mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
August
Brookton 15.2 14.9 in 1968* 16.9
Northam 16.6 16.4 in 1986* 18.0
Cape Naturaliste 16.4 15.8 in 1992 16.4
Dwellingup 14.9 14.5 in 1992 15.7
Hyden 16.1 15.9 in 1992 17.6
Merredin 16.1 15.6 in 1992 17.5
Ongerup 14.5 14.2 in 1992 15.8
Perth Airport 17.5 17.4 in 1992 18.6
Pingelly 14.9 =14.9 in 1992 16.2
Ravensthorpe 15.7 15.4 in 1992 17.3
Wagin 14.8 14.7 in 1992 16.1

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




Record highest August daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Doongan 24.0 on the 31st 23.4 on the 29th in 2010 27 12.2
Argyle Aerodrome 26.0 on the 14th 25.7 on the 27th in 2003 23 17.3



Record lowest August temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Northam -1.7 on the 1st = -1.7 on the 10th in 2010 107 5.6
Kellerberrin -2.5 on the 1st = -2.5 on the 20th in 2010 105 5.4
Corrigin -2.9 on the 2nd -2.8 on the 10th in 1951 69 4.8
Gosnells City 2.2 on the 1st = 2.2 on the 21st in 2000 24 9.0
Rocky Gully -0.4 on the 24th -0.2 on the 31st in 2005 21 6.9



Highest August mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
August
Cygnet Bay 17.5 17.7 in 1992* 14.7

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




Record lowest August mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Rottnest Island 11.4 = 11.4 in 1992 26 12.5

Lowest August mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
August
Cape Leeuwin 10.5 10.4 in 1990 11.2



Record highest August mean temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Christmas Island Aero 25.4 = 25.4 in 1998 41 24.1



Record lowest August mean temperature
New record
(°C)
Old
record
Years of
record
Average for
August
Ravensthorpe 10.6 10.7 in 1986 53 12.0
Bickley 10.4 10.6 in 2004 22 11.9
Rocky Gully 9.8 9.9 in 2004 20 11.2

Lowest August mean temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
August
Perth Airport 12.5 11.8 in 1986 13.3
Cape Leeuwin 13.4 13.3 in 1992 13.9
Rottnest Island 14.2 14.1 in 1992 15.2

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




Summary statistics for August 2016
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
August
2016
Diff
from
average
Highest for
August
2016
Mean for
August
2016
Diff
from
average
Lowest for
August
2016
Total for
August
2016
Average
for
August
Rank of
August
2016
Fraction of
August
average
North Kimberley (district 01)
Doongan 32.4 +0.9 34.2 31st 13.1 +0.9 6.1 5th 0 0.9 lowest 0%
Kalumburu 34.2 +0.8 36.2 19th 15.6 +1.1 8.7 5th 0.4 0.4 average 100%
Mount Elizabeth 30.6 +0.1 33.2 11th 9.9 +0.6 2.3 5th 8.4 2.0 v high 420%
Troughton Island 29.9 +1.1 31.0 30th 23.9 +1.4 21.7 8th 0 0.5 lowest 0%
Truscott 32.0 +0.4 34.2 16th 19.6 +0.9 15.2 5th 0 0.4 v low 0%
Wyndham Aero 34.4 +0.6 37.2 19th 17.3 +1.2 7.4 5th 0 0.1 lowest 0%
East Kimberley (district 02)
Argyle Aerodrome 32.5 +0.5 35.7 19th 19.0 +1.7 11.5 5th 0.4 0.3 high 133%
Halls Creek Airport 30.5 +0.5 34.4 10th 15.6 +0.8 8.0 5th 25.0 2.1 v high 1190%
Kununurra Aero 33.7 +1.0 36.5 29th 15.3 -0.4 7.3 5th 0.4 0.1 v high 400%
Warmun 33.1 +0.8 36.0 10th 16.1 +1.3 6.1 5th 2.0 1.3 high 154%
West Kimberley (district 03)
Bidyadanga 31.7 +0.6 35.8 11th 16.6 +1.7 11.1 24th 33.4 2.3 v high 1452%
Broome Airport 30.7 +0.4 34.8 13th 16.6 +1.7 10.9 1st 47.6 2.2 highest 2164%
Curtin Aero 33.4 +0.3 36.3 18th 16.5 +0.7 11.3 7th 26.6 2.6 v high 1023%
Cygnet Bay 30.9 +1.2 34.5 16th 17.5 +2.8 11.9 1st 1.2 1.0 v high 120%
Derby Aero 33.1 +0.5 36.3 18th 17.3 +1.4 10.5 24th 23.6 1.2 highest 1967%
Fitzroy Crossing Aero 33.3 0.0 37.0 20th 14.7 +1.1 8.1 1st 46.0 3.3 highest 1394%
De Grey (district 04)
Bedout Island 26.6   29.2 17th 20.6   17.5 2nd
Karratha Aero 27.3 -1.0 31.4 16th 15.1 +0.8 9.5 23rd 0.8 4.3 average 19%
Legendre Island 25.8   28.7 17th 18.9   15.9 24th
Mandora 31.4 +0.6 36.0 17th 14.3 +1.1 8.5 27th 15.2 2.6 v high 585%
Marble Bar 29.9 -0.4 35.4 17th 14.9 +1.9 9.9 20th 2.4 0.5 v high 480%
Pardoo Station 29.8 -0.5 35.5 17th 14.7 +1.3 10.1 27th 11.8 4.7 high 251%
Port Hedland Airport 29.7 +0.5 34.9 17th 15.0 +1.8 10.4 25th 16.6 4.8 v high 346%
Roebourne Aero 29.2 -1.2 34.6 17th 13.4 +0.9 6.8 24th 0.6 0.8 high 75%
Fortescue (district 05)
Barrow Island Airport 24.5 -0.7 27.6 27th 17.7 -0.1 13.5 24th 4.0 2.7 high 148%
Learmonth Airport 25.3 -1.1 28.6 27th 11.1 -1.1 5.0 23rd 0.8 11.7 average 7%
Mardie 28.3 -1.3 31.7 16th 13.4 +1.0 7.6 23rd 3.4 7.1 high 48%
Onslow Airport 26.7 -0.6 29.6 20th 14.3 +0.8 8.9 24th 1.8 8.7 average 21%
Wittenoom 27.1 +0.2 31.6 16th 13.3 +0.1 7.7 24th 0.4 8.0 average 5%
West Gascoyne (district 06)
Carnarvon Airport 23.3 +0.2 30.2 14th 11.2 -0.4 6.1 24th 28.2 17.6 high 160%
Denham 21.8 -0.9 26.9 25th 14.3 +1.0 11.0 1st 16.0 21.8 average 73%
Emu Creek Station 26.7 -0.9 29.5 16th 12.1 -0.2 7.8 23rd 0 10.9 lowest 0%
Murchison 21.6 -1.5 29.0 14th 6.8 -0.3 1.5 24th 17.2 18.9 average 91%
Shark Bay Airport 22.9 -1.4 27.8 14th 10.6 -0.5 5.0 26th 22.8 19.6 average 116%
East Gascoyne (district 07)
Newman Aero 25.2 -0.9 31.2 17th 8.6 +0.7 3.7 24th 3.0 6.9 average 43%
Paraburdoo Aero 26.4 -1.2 31.7 16th 11.2 +0.3 6.7 27th 1.8 10.5 average 17%
Murchison (district 07A)
Meekatharra Airport 21.3 -0.3 27.9 14th 8.8 +0.2 3.2 20th 9.8 10.8 average 91%
Mount Magnet Aero 19.8 -1.6 27.3 14th 7.6 -0.4 2.8 23rd 17.0 16.6 average 102%
Paynes Find 18.8 -1.4 26.4 14th 4.7 -1.3 -1.1 2nd 32.8 27.0 average 121%
North Coast (district 08)
Dalwallinu 16.8 -1.5 24.8 14th 4.4 -1.8 -0.6 2nd 39.2 37.3 average 105%
Geraldton Airport 19.4   24.7 14th 7.8   3.3 24th 71.4
Kalbarri 21.8 -0.7 28.1 14th 9.5 -0.4 4.0 23rd 32.5 47.9 average 68%
Morawa Airport 18.8 -1.6 27.6 14th 5.3 -1.2 0.6 1st 39.6 32.1 average 123%
Mullewa 19.3 -0.9 27.5 14th 6.6 -0.6 2.4 23rd 40.7 41.7 average 98%
North Island 20.6 -1.1 23.7 3rd 13.7 -1.8 7.4 3rd 44.4 35.9 average 124%
Wongan Hills 16.7 -1.3 25.0 14th 5.4 -1.3 0.0 23rd 50.6 51.4 average 98%
Central Coast (district 09)
Badgingarra Research Stn 16.6 -1.7 20.0 26th 6.0 -1.1 2.7 18th 6.0 82.7 lowest 7%
Bickley 14.4 -1.7 19.8 14th 6.4 -1.3 1.7 24th 220.0 172.5 high 128%
Garden Island HSF 16.8 -1.5 19.7 26th 10.3 -1.0 7.1 24th 116.0 92.4 high 126%
Gingin Aero 17.6 -1.6 23.5 14th 6.1 -0.4 -0.4 1st 153.2 107.3 v high 143%
Gosnells City 17.9 -1.6 21.9 14th     2.2 1st 144.9 126.1 average 115%
Jandakot Aero 17.4 -1.3 20.9 26th 7.0 -0.1 0.2 1st 141.0 126.5 average 111%
Jurien Bay 19.4 -0.6 22.0 28th 8.6 -0.8 3.3 24th 79.4 80.0 average 99%
Karnet 15.1 -0.9 20.0 13th 5.2 -1.1 -0.5 1st 205.1 186.0 average 110%
Lancelin 18.3 -1.1 22.0 26th 9.1 -0.9 3.5 2nd 125.7 91.0 v high 138%
Medina Research Centre 17.7 -1.2 21.4 14th 7.3 -0.9 0.9 1st 143.0 113.9 high 126%
Pearce RAAF 17.5 -0.9 22.9 14th 7.5 -0.7 1.8 1st 134.2 104.5 high 128%
Perth Airport 17.5 -1.1 22.3 14th 7.5 -0.6 1.1 1st 120.2 117.6 average 102%
Perth Metro 17.7 -1.4 21.9 14th 7.9 -0.4 1.6 1st 123.2 133.0 average 93%
Rottnest Island 17.0 -1.0 19.1 26th 11.4 -1.1 8.9 24th 125.4 86.1 v high 146%
Swanbourne 17.4 -1.6 21.2 26th 9.4 -0.7 4.0 1st 139.0 116.2 high 120%
South Coast (district 09A)
Albany     20.2 26th 8.5 +0.1 4.8 6th 117.4 125.8 average 93%
Albany Airport 15.6   19.6 26th 6.5   1.1 6th 117.6
Bridgetown 14.9 -1.5 20.1 26th 4.2 -0.7 -2.6 24th 119.4 113.8 average 105%
Bunbury 16.4 -1.3 19.3 26th 6.9 -0.8 0.7 1st 155.2 118.4 high 131%
Busselton Aero 16.2 -1.2 18.6 26th 6.9 -0.3 0.9 1st 133.0 105.7 high 126%
Cape Leeuwin 16.3 -0.2 21.6 26th 10.5 -0.7 7.1 24th 166.2 135.8 high 122%
Cape Naturaliste 16.4 0.0 19.8 26th 9.8 -0.3 6.4 24th 130.8 112.3 average 116%
Collie East 15.7 -1.6 20.0 26th 4.0 -0.8 -2.7 24th 170.6 115.2 high 148%
Donnybrook 16.3 -1.0 19.0 14th 5.6 -0.5 0.6 1st 179.2 148.3 high 121%
Dwellingup 14.9 -0.8 19.9 26th 5.1 -0.4 -1.2 1st 230.4 192.9 high 119%
Esperance 17.0 -1.0 25.3 17th 8.4 -0.2 4.6 2nd 94.8 83.3 average 114%
Esperance Aero 16.2 -1.2 24.1 17th 7.2 -0.6 3.9 2nd 109.6 69.5 high 158%
Hopetoun North 17.3 -1.5 24.6 14th 7.7 -0.1 2.6 3rd 67.0 53.8 high 125%
Jarrahwood 15.9 -1.0 20.2 26th 4.5 -0.7 -2.1 24th 191.6 143.8 high 133%
Mandurah 16.7 -1.5 19.1 25th 10.0 -1.1 5.3 24th
Manjimup 14.4 -0.7 20.8 26th 6.0 -0.5 1.1 24th 161.8 145.0 average 112%
North Walpole 15.3 -1.5 19.8 26th 8.1 -1.1 2.6 24th 187.6 151.3 high 124%
Rocky Gully 14.0 -1.5 18.6 26th 5.7 -1.2 -0.4 24th 169.6 89.2 highest 190%
Shannon 14.0 -1.6 19.1 26th 6.2 -0.8 0.4 24th 223.2 131.2 highest 170%
Witchcliffe 15.7 -1.1 19.3 26th 7.6 -0.6 1.4 25th 227.8 153.3 v high 149%
North Central (district 10)
Bencubbin 16.2 -1.5 25.0 14th 4.8 -1.2 -0.6 1st 23.1 37.2 low 62%
Cunderdin Airfield 16.3 -1.8 23.7 14th 3.9 -0.6 -1.6 23rd 47.0 40.5 high 116%
Merredin 16.1 -1.4 25.0 14th 4.8 -0.8 -1.6 1st 41.8 38.9 average 107%
Northam 16.6 -1.4 23.0 14th 4.4 -1.2 -1.7 1st 75.1 60.8 high 124%
York 16.4 -1.7 22.0 14th 3.3 -0.7 -2.0 2nd 61.7 55.6 average 111%
South Central (district 10A)
Beverley 16.0 -1.8 20.8 14th 4.4 -0.7 -1.4 1st 62.6 58.5 average 107%
Brookton 15.2 -1.7 19.9 14th 3.4 -1.3 -1.9 1st 64.1 62.0 average 103%
Corrigin 15.4 -1.0 22.4 14th 3.8 -1.0 -2.9 2nd 60.9 47.5 high 128%
Hyden 16.1 -1.5 24.0 14th 4.0 -0.7 -2.7 24th 46.0 40.6 average 113%
Jacup 15.1 -1.8 20.9 14th 5.0 -0.7 0.9 1st 121.0 50.9 highest 238%
Katanning 13.7 -1.8 17.5 26th 5.0 -1.0 0.3 1st 55.8 60.2 average 93%
Lake Grace 15.0 -1.9 20.6 14th 4.4 -1.3 -1.2 1st 56.6 37.0 high 153%
Narembeen 16.1 -1.6 24.4 14th 4.7 -0.7 -1.5 1st 45.3 41.5 average 109%
Narrogin 14.5 -0.8 19.5 14th 4.1 -1.1 -1.9 24th 70.8 67.6 average 105%
Newdegate Research Station 14.7 -1.7 20.6 14th 3.3 -1.0 -2.5 2nd 60.2 44.5 high 135%
Ongerup 14.5 -1.3 19.6 14th 4.2 -1.7 0.0 22nd 74.2 43.2 v high 172%
Pingelly 14.9 -1.3 19.4 14th     0.0 24th 58.0 61.8 average 94%
Ravensthorpe 15.7 -1.6 23.0 14th 5.4 -1.3 1.0 24th 97.6 44.9 v high 217%
Wagin 14.8 -1.3 19.5 14th 4.8 -0.9 -1.0 24th 60.6 56.7 average 107%
Wandering 15.0 -1.6 21.1 14th 3.4 -0.7 -3.3 24th 98.2 89.5 average 110%
Eucla (district 11)
Balladonia 18.9 -0.4 30.1 17th 4.7 -0.6 -1.9 2nd 18.5 21.4 average 86%
Eucla 19.9 +0.7 29.0 17th 7.1 -0.4 1.3 13th 21.4 26.2 average 82%
Eyre 20.5 +1.1 32.5 17th 4.5 -1.6 -4.0 13th 23.2 29.3 average 79%
Forrest 20.8 -0.2 31.2 17th 5.7 -0.1 1.6 13th 4.2 13.0 low 32%
Red Rocks Point 19.7 +0.2 31.3 17th 7.7 -0.5 3.3 20th 32.4 40.8 average 79%
South East (district 12)
Bulga Downs 19.6 -2.8 26.7 15th 5.0 -1.1 -1.5 3rd 30.6 15.2 high 201%
Kalgoorlie-Boulder Airport 17.8 -0.9 26.3 17th 6.2 +0.5 -0.4 1st 29.6 21.3 high 139%
Laverton Aero 19.8 -1.1 29.1 17th 6.9 -0.3 0.9 10th 17.4 9.2 high 189%
Leinster Aero 20.2 -1.6 28.3 15th 7.1 -0.6 1.6 24th 14.4 8.6 high 167%
Leonora Aero 19.9   28.0 15th 7.0   1.4 19th 13.2 9.2 average 143%
Munglinup West 16.1 -2.1 24.2 14th 5.9 -1.1 1.8 19th 94.0 42.7 v high 220%
Norseman Aero 17.4 -2.0 26.9 17th 4.0 -0.4 -2.9 1st 25.6 22.6 high 113%
Salmon Gums Res.Stn. 16.6 -0.8 25.1 17th 4.7 0.0 -2.2 2nd 53.6 33.8 high 159%
Southern Cross Airfield 16.3 -2.4 24.4 14th 3.3 -0.5 -2.6 1st 24.2 30.0 average 81%
Yeelirrie 21.1 -0.7 29.0 15th 4.5 -0.2 -2.7 3rd 11.7 12.3 average 95%
North East (district 13)
Carnegie 23.4 -0.7 30.8 17th 7.7 +0.4 1.5 4th 0.8 6.9 average 12%
Giles Meteorological Office 22.4 -0.3 28.0 16th 7.9 -0.8 2.6 2nd 6.4 9.8 average 65%
Telfer Aero 28.0 -0.4 33.6 17th 13.0 +0.5 7.4 2nd 1.4 4.9 high 29%
Warburton Airfield 22.8 -0.5 30.3 17th 7.5 +0.3 1.3 21st 0 9.2 lowest 0%
Offshore Islands (district 200)
Browse Island 28.9   30.6 30th 25.2   23.8 6th
Christmas Island Aero 27.5 +1.4 29.3 30th 23.4 +1.2 21.2 24th 132.4 42.3 v high 313%
Cocos Island Airport 28.1 0.0 29.3 30th 24.3 +0.4 22.2 25th 47.0 120.6 low 39%
Rowley Shoals 26.5   28.9 14th 23.8   19.5 16th
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 Monthly 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 11 am 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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