Western Australia in summer 2016-17: Record wet summer

Rainfall in summer 2016-17 was above to well above average across Western Australia. The state-wide average rainfall was the highest for summer since comparable records commenced in 1900, with the mean of 340 mm more than 30 mm higher than the previous record set in summer 2010-11. Mean maximum temperatures were below average for most of WA whilst mean minimum temperatures saw a mixed pattern across the State though most of WA recorded near average minima.

Record wet summer for WA

  • Summer rainfall for WA was the highest on record with an average across the State of 340 mm, more than 30 mm higher than the previous record wet summer in 2010-11
  • Summer rainfall averaged across the Kimberley was over 940 mm, also the wettest summer on record
  • The South West Land Division (SWLD) experienced its second-wettest summer on record, not far behind the summer of 1954-55
  • Only one tropical cyclone formed in the WA region during summer (tropical cyclone Yvette formed to the west of Broome in late December but was relatively short lived), however multiple tropical lows impacted northern WA during summer with a few record high summer daily rainfalls reported in northern WA as a result, and several sites recording their wettest summer on record
  • A number of significant cloudbands brought very heavy rainfall to southern WA in late January and early February, leading to many daily summer rainfall records being broken; many sites in the SWLD recorded their highest total summer rainfall on record or wettest summer for more than 20 years
  • Flooding was recorded in many river catchments across WA during summer, with particularly damaging flooding in the Southeast Coastal district around Ravensthorpe in February (see Special Climate Statement 60)

Lower than normal maximum temperatures for most WA

  • The mean maximum temperature for WA in summer was 0.8 °C below average, the mildest since summer 2005-06
  • Most of WA recorded near average to below average mean maxima for summer; only small areas of the southwest Gascoyne and east Eucla recorded above average maximum temperatures
  • A cloudband produced heavy rainfall and some record low summer maximum temperatures in the Lower West and neighbouring districts on 9 February
  • The mean minimum temperature for WA in summer was very close to average; parts of northwest, inland central, and southeast WA recorded an above average summer, whilst parts of the southwest and northeast recorded a below average summer in terms of overnight temperatures
  • Several sites in the Kimberley had their warmest summer night on record in early and mid-December

Further information

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Extremes in summer 2016-17
Hottest day 46.6 °C at Gascoyne Junction on 4 Jan 2017
Warmest days on average 39.6 °C at Emu Creek Station
Coolest days on average 21.7 °C at Albany
Coldest day 13.7 °C at Bickley on 9 Feb 2017
Coldest night 2.5 °C at Salmon Gums Res.Stn. on 2 Dec 2016
2.5 °C at Eyre on 25 Jan 2017
Coolest nights on average 11.1 °C at Rocky Gully
Warmest nights on average 27.3 °C at Bedout Island
26.7 °C at Broome Airport
Warmest night 32.5 °C at Cygnet Bay on 18 Dec 2016
Warmest on average overall 32.2 °C at Marble Bar
Coolest on average overall 18.1 °C at North Walpole
Wettest overall 1531.5 mm at El Questro
Wettest day 291.2 mm at Port Smith on 24 Dec 2016
Strongest wind gust 115 km/h at Rowley Shoals on 8 Feb 2017

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 summer daily rainfall
New record
(mm)
Old
record
Years of
record
Bannister 115.0 on 10 Feb 2017 113.0 on 17 Feb 1955 120
Brookton 96.6 on 10 Feb 2017 82.6 on 17 Feb 1955 111
Ogilvie 63.4 on 30 Jan 2017 58.2 on 21 Jan 1916 108
Isseka 70.2 on 30 Jan 2017 67.1 on 17 Feb 1970 102
Yorkrakine 140.0 on 29 Jan 2017 102.1 on 14 Feb 1939 102
Howatharra 67.0 on 30 Jan 2017 66.0 on 17 Feb 1970 91
Mount Madden 104.8 on 11 Feb 2017 91.4 on 17 Feb 1970 87
Wanneroo 78.8 on 10 Feb 2017 66.4 on 21 Jan 1982 80
East Kondut 60.0 on 31 Jan 2017 59.0 on 29 Jan 1990 70
Pearce RAAF 58.0 on 10 Feb 2017 53.0 on 22 Feb 1986 66
Kojonolokan Hills 113.2 on 10 Feb 2017 82.0 on 21 Jan 1982 57
Karnet 115.8 on 10 Feb 2017 106.8 on 21 Jan 1982 55
Bakers Hill 75.3 on 10 Feb 2017 57.0 on 21 Jan 1982 52
Christmas Creek Homestead 186.0 on 16 Jan 2017 182.9 on 13 Jan 1962 51
Bickley 83.6 on 10 Feb 2017 66.6 on 21 Feb 1986 49
Dampier Salt 208.0 on 9 Feb 2017 195.0 on 10 Jan 2006 48
Nevertire 42.4 on 18 Jan 2017 36.8 on 18 Feb 1981 48
Cherrabun 190.0 on 22 Dec 2016 175.0 on 23 Jan 1986 44
Port Smith 291.2 on 24 Dec 2016 197.2 on 5 Feb 2002 43
Kingston Rest 179.5 on 4 Jan 2017 118.5 on 5 Dec 2000 41
Eurardy 60.2 on 30 Jan 2017 58.0 on 27 Feb 2006 34
Pinjarra Refinery 72.2 on 10 Feb 2017 44.0 on 12 Dec 2012 33
Doongan 172.0 on 21 Dec 2016 167.2 on 1 Jan 2004 30
Koorarawalyee 74.6 on 8 Feb 2017 48.6 on 26 Jan 2016 30
Huntly 128.0 on 10 Feb 2017 70.6 on 13 Dec 2011 28
Rottnest Island 93.8 on 10 Feb 2017 46.8 on 23 Jan 1999 25
Swanbourne 97.4 on 10 Feb 2017 79.0 on 22 Jan 2000 25
York 91.0 on 10 Feb 2017 73.6 on 13 Jan 2006 22
Dalwallinu 63.4 on 30 Jan 2017 42.0 on 13 Jan 2006 21
Wandering 107.6 on 10 Feb 2017 88.4 on 13 Dec 2011 20



Record highest summer total rainfall
New record
(mm)
Old
record
Years of
record
Average for
summer
Perth Metro 192.8 180.4 in 1954 141 50.1
Northam 261.9 192.1 in 1954 135 35.2
Beverley 228.8 189.0 in 1999 131 37.2
Toodyay 221.6 212.3 in 1954 131 34.9
Carnamah 315.0 176.2 in 1989 127 37.3
Gingin 178.0 163.9 in 1954 123 34.2
Doongin Peak 188.4 182.2 in 1999 122 37.8
Brookton 212.2 195.7 in 1954 109 39.3
Cowcowing 155.1 135.3 in 1914 109 39.7
Warmun 1253.6 926.5 in 1917 107 479.3
Yandanooka 147.0 113.2 in 2005 107 32.8
Bullfinch 214.4 201.5 in 1965 105 57.4
Dumbleyung 227.4 220.2 in 1954 105 48.0
Quairading 321.2 255.5 in 1999 104 44.3
Ongerup 217.4 211.2 in 1954 102 56.5
Badgebup 245.3 222.2 in 1954 99 48.4
Carlton Hill 1258.2 1222.8 in 1941 99 575.9
Myroodah 1019.2 725.2 in 2010 98 376.9
Telenning Hill 255.8 209.2 in 1999 97 37.7
Yorkrakine 261.5 162.5 in 1999 95 40.6
Mindalla 132.8 132.5 in 1914 94 34.5
South Holmwood 208.4 177.4 in 1954 92 33.2
Narembeen 228.7 207.8 in 1999 90 49.1
Ygnattering 224.5 135.6 in 2005 88 41.3
Howatharra 107.0 95.2 in 1969 86 18.2
Dalyup Park 266.6 260.0 in 1999 83 67.5
Yealering 203.8 172.8 in 1999 81 42.2
Happy Valley 200.8 189.6 in 2005 80 40.8
King Rocks 210.4 208.0 in 1999 78 59.4
Woodanilling 224.3 189.2 in 1954 77 43.8
Jubilee Downs 909.8 858.2 in 1985 74 385.3
Shackleton 206.0 142.0 in 1954 74 38.1
Wanneroo 177.2 147.0 in 1981 70 35.2
Muresk Institute 251.3 190.0 in 1954 65 39.1
Esperance Downs Research Stn 248.8 244.2 in 1998 63 77.2
Gidgegannup 237.2 185.1 in 1989 57 40.5
Highfields 204.4 147.8 in 1977 56 41.6
Amery Acres 166.6 157.8 in 2005 55 41.9
Udialla 976.2 942.5 in 1980 53 470.4
Lancelin 184.9 112.0 in 1989 52 32.0
Pearce RAAF 167.0 91.4 in 2011 51 31.6
Bakers Hill 292.6 181.2 in 1999 49 46.2
Erinair 262.6 256.4 in 1998 49 76.7
Telina Downs 242.6 227.6 in 2006 49 71.8
Yulmbu 1031.6 879.8 in 2001 47 451.0
Bickley 171.8 145.2 in 1999 46 52.9
Culford 163.4 153.4 in 2011 46 43.5
Esperance Aero 264.6 255.6 in 2006 45 76.6
Telfer Aero 520.6 514.0 in 1994 43 209.6
Kununurra Aero 1140.0 1124.2 in 2013 42 574.0
Lake Argyle Resort 1120.2 1063.7 in 2003 42 497.7
Bindoon 192.6 151.0 in 2011 40 41.1
Charnley River 1252.7 964.2 in 1992 40 626.0
Camballin 1072.7 860.9 in 2010 39 425.1
Cherrabun 932.7 649.1 in 1990 38 310.8
Lake Nammen 172.4 132.4 in 1991 38 33.4
Kingston Rest 1053.6 828.0 in 1999 35 548.4
Nalyerlup 220.4 164.9 in 2015 34 74.8
Warra Jarra 217.2 212.4 in 1981 34 77.9
Mount Helena 209.6 206.4 in 1989 31 50.0
Pinjarra Refinery 97.5 96.8 in 2012 28 40.7
El Questro 1531.5 1104.7 in 2001 27 637.1
Huntly 198.7 147.5 in 1999 26 53.7
Munglinup 213.0 205.6 in 2006 26 77.8
Nunile 240.4 222.2 in 2005 26 51.5
Swanbourne 181.6 145.6 in 1999 23 38.6
Rottnest Island 117.6 90.2 in 2011 22 34.0
Gingin Aero 228.8 106.2 in 1998 21 43.7
Kachana 1369.6 1020.4 in 2008 21 668.3
York 248.6 197.2 in 2005 21 62.4
Cunderdin Airfield 181.0 151.4 in 2005 20 48.4
Fitzroy Crossing Aero 888.8 671.6 in 2010 20 480.5

Highest summer total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
summer
Yeeda 1092.0 1183.8 in 1906* 413.2
Fossil Downs 750.4 929.7 in 1917* 379.6
Salmon Gums Res.Stn. 203.2 219.5 in 1938* 71.1
Herne Hill 146.8 150.9 in 1914* 36.6
Mukinbudin 135.7 187.0 in 1942* 42.8
Konnongorring 173.9 175.3 in 1938* 42.9
Redlands 197.2 237.6 in 1954 39.0
Wagin 204.8 258.6 in 1954 42.5
Chidlow 198.8 209.8 in 1954* 44.5
Kukerin 196.2 204.0 in 1954* 48.2
Jarrahdale 172.2 185.3 in 1954* 48.3
Nyabing 180.2 256.1 in 1954* 47.0
New Norcia 172.0 241.4 in 1954* 35.6
Mount House Station 937.6 975.8 in 1962* 525.2
Serpentine 166.2 204.4 in 1954* 36.1
Mount Barnett 1096.0 1102.3 in 1917* 603.9
Noongaar 186.4 242.2 in 1977 51.2
Westonia 167.2 185.4 in 1977* 48.8
Napier Downs 993.9 1052.7 in 1973* 547.5
Seven Oaks 157.4 160.6 in 1977* 45.6
Borden 181.8 216.5 in 1981 53.1
Broomehill 184.6 249.0 in 1981 46.5
Gnowangerup 193.0 213.7 in 1981 52.9
Cherry Tree 173.1 238.2 in 1981* 44.5
Dwellingup 174.0 266.6 in 1981* 58.5
Marradong 171.8 177.6 in 1981* 40.8
Darkan 108.4 191.0 in 1981* 37.9
Karnet 181.6 187.8 in 1981* 56.4
Bodallin South 133.0 155.8 in 1977* 51.3
Chillinup 210.1 252.0 in 1981* 60.0
Wagerup Refinery 99.0 198.3 in 1981* 41.3
Wokalup 104.4 248.9 in 1981* 47.4
Arthur River 168.8 267.3 in 1981* 40.5
Dandaragan West 101.6 134.4 in 1985* 33.3
Hillcroft 210.6 211.2 in 1989 34.9
Jurien Bay 98.4 99.2 in 1989 28.6
Pickering Brook 161.0 174.0 in 1989 54.8
Brunswick Junction 88.4 99.7 in 1988* 40.5
Medina Research Centre 132.1 274.7 in 1991 44.6
Midland 138.1 168.8 in 1991 34.0
Mundaring 178.4 209.4 in 1989* 49.1
Perth Airport 128.2 184.8 in 1991 36.4
Three Springs 145.8 251.8 in 1989* 40.2
Jandakot Aero 146.4 244.0 in 1991* 44.6
Coorow 138.6 167.7 in 1989* 37.5
Bulong 281.2 373.4 in 1994 68.1
Pingrup 156.5 168.7 in 1989* 51.3
Ruby Plains 694.6 772.0 in 1992* 329.7
Broome Airport 857.2 1177.6 in 1996 421.4
Derby Aero 944.6 951.0 in 1996 474.0

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




Record highest summer temperature
New record
(°C)
Old
record
Years of
record
Average for
summer
Cocos Island Airport 32.8 on 23 Feb 2017 32.5 on 14 Feb 2014 66 29.7



Record lowest summer daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
summer
Northam 15.7 on 9 Feb 2017 16.1 on 17 Dec 1952 111 33.4
Pearce RAAF 17.5 on 9 Feb 2017 18.8 on 17 Feb 1981 60 32.4
Karnet 15.4 on 9 Feb 2017 15.5 on 25 Feb 1991 53 29.8
Lancelin 17.6 on 9 Feb 2017 19.0 on 1 Dec 1973 52 28.9
Brookton 15.7 on 9 Feb 2017 16.0 on 16 Dec 2007 51 32.1
Beverley 15.4 on 9 Feb 2017 16.8 on 1 Dec 1983 49 33.4
Jurien Bay 19.6 on 9 Feb 2017 20.0 on 1 Dec 1973 48 29.7
Medina Research Centre 18.2 on 9 Feb 2017 19.2 on 25 Feb 1991 32 30.3
Jandakot Aero 17.6 on 9 Feb 2017 19.3 on 25 Feb 1991 28 30.7
Rottnest Island 18.0 on 9 Feb 2017 18.4 on 6 Dec 2007 28 26.3
Gosnells City 18.0 on 9 Feb 2017 19.4 on 5 Dec 2015 26 32.2
Bickley 13.7 on 9 Feb 2017 16.0 on 16 Dec 2007 24 29.9
Swanbourne 17.1 on 9 Feb 2017 19.3 on 1 Dec 1998 24 29.5
Cunderdin Airfield 16.9 on 9 Feb 2017 17.3 on 16 Dec 2007 21 34.0
Gingin Aero 16.7 on 9 Feb 2017 19.5 on 5 Dec 2015 21 32.4
York 15.5 on 9 Feb 2017 17.1 on 16 Dec 2007 21 33.4



Record lowest summer mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
summer
Curtin Aero 34.6 34.7 in 1996 25 36.8

Lowest summer mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
summer
Warmun 34.8 =34.8 in 1996 37.3



Record highest summer daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
summer
Troughton Island 30.1 on 10 Dec 2016 = 30.1 on 23 Dec 2005 39 26.6
Cygnet Bay 32.5 on 18 Dec 2016 30.5 on 2 Dec 2015 31 25.4
Curtin Aero 30.5 on 9 Dec 2016 29.7 on 15 Dec 2009 26 24.9
Mount Elizabeth 27.5 on 1 Dec 2016 26.6 on 7 Jan 2013 24 22.1



Summary statistics for summer 2016-17
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
summer
2016-17
Diff
from
average
Highest for
summer
2016-17
Mean for
summer
2016-17
Diff
from
average
Lowest for
summer
2016-17
Total for
summer
2016-17
Average
for
summer
Rank of
summer
2016-17
Fraction of
summer
average
North Kimberley (district 01)
Kalumburu 33.5 -0.7 38.4 24 Feb 2017 24.7 +0.1 22.4 1 Dec 2016 1314.4 839.7 v high 157%
Troughton Island 31.6 -0.5 35.3 8 Dec 2016 26.8 +0.2 22.8 10 Feb 2017 943.8 583.2 high 162%
Truscott     37.2 1 Dec 2016 25.7 +0.1 22.2 10 Feb 2017 917.2 723.2 high 127%
Wyndham Aero 35.2 -1.6 43.1 1 Dec 2016 25.9 -0.4 22.0 10 Feb 2017 1065.6 576.1 v high 185%
East Kimberley (district 02)
Argyle Aerodrome 34.8 -1.7 42.1 8 Dec 2016 25.1 -0.5 20.9 3 Dec 2016 562.6 486.1 average 116%
Halls Creek Airport 34.3   40.9 17 Dec 2016 23.7   18.9 22 Feb 2017
Kununurra Aero 34.9 -1.2 43.8 8 Dec 2016 24.9 -0.2 19.9 22 Feb 2017 1140.0 574.0 highest 199%
Warmun 34.8 -2.5 42.5 8 Dec 2016 24.6 -0.2 19.0 25 Jan 2017 1253.6 479.3 highest 262%
West Kimberley (district 03)
Bidyadanga 33.7 -0.9 42.0 3 Jan 2017 26.3 +0.5 22.8 16 Feb 2017 664.4 321.7 v high 207%
Broome Airport 32.9 -0.5 41.9 9 Dec 2016 26.7 +0.4 22.9 28 Feb 2017 857.2 421.4 v high 203%
Curtin Aero 34.6 -2.2 42.0 8 Dec 2016 24.9 0.0 22.1 28 Feb 2017
Cygnet Bay     38.5 9 Dec 2016 25.5 +0.1 22.3 1 Feb 2017 881.0 495.8 v high 178%
Derby Aero 34.4 -1.3 42.7 8 Dec 2016 25.8 0.0 22.9 13 Feb 2017 944.6 474.0 v high 199%
Fitzroy Crossing Aero 35.9 -2.0 43.0 17 Dec 2016 24.9 -0.3 21.6 10 Feb 2017 888.8 480.5 highest 185%
De Grey (district 04)
Bedout Island 33.2   36.1 24 Feb 2017 27.3   23.0 15 Feb 2017
Karratha Aero 35.2 -0.7 43.0 5 Jan 2017 26.5 +0.2 22.3 6 Dec 2016 374.0 141.1 v high 265%
Legendre Island 32.8   36.8 22 Feb 2017 26.5   23.5 5 Dec 2016
Mandora 35.1 -1.1 45.4 4 Jan 2017 25.6 +0.6 20.5 20 Feb 2017 328.6 221.8 high 148%
Marble Bar 38.7 -2.2 45.5 4 Jan 2017 25.8 -0.5 21.5 28 Feb 2017 393.4 212.6 high 185%
Roebourne Aero 37.5 -1.3 45.5 5 Jan 2017 25.8 +0.1 19.8 6 Dec 2016 223.4 149.4 high 150%
Fortescue (district 05)
Barrow Island Airport 32.8 -0.2 38.1 14 Dec 2016 25.7 +0.2 21.6 9 Feb 2017 276.6 88.8 high 311%
Learmonth Airport 37.3 -0.1 45.4 19 Dec 2016 22.7 0.0 17.1 4 Dec 2016 68.4 79.5 average 86%
Mardie 36.3 -1.4 46.3 6 Jan 2017 25.1 +0.6 19.3 5 Dec 2016 104.8 108.9 average 96%
Onslow Airport 36.2 0.0 45.7 5 Jan 2017 24.6 +0.7 19.3 4 Dec 2016 215.2 106.5 high 202%
Wittenoom 37.4 -1.6 43.7 18 Dec 2016 25.3 -0.3 21.2 11 Feb 2017 319.4 268.8 high 119%
West Gascoyne (district 06)
Carnarvon Airport 31.3 +0.2 42.7 26 Jan 2017 22.2 0.0 15.6 10 Feb 2017 40.6 37.3 high 109%
Denham 30.2 -0.4 42.0 26 Jan 2017 21.4 -0.5 14.0 29 Dec 2016 70.2 25.6 v high 274%
Emu Creek Station 39.6 -0.8 46.5 5 Jan 2017 24.1 +0.1 17.7 4 Dec 2016 262.7 127.2 high 207%
Murchison 37.6 -0.9 44.8 5 Jan 2017 22.2 +0.2 14.6 28 Dec 2016 108.3 65.7 high 165%
Shark Bay Airport 33.4 -0.4 44.0 26 Jan 2017 20.8 -0.4 16.1 6 Dec 2016 73.6 44.6 high 165%
East Gascoyne (district 07)
Newman Aero 37.2 -1.3 43.2 19 Dec 2016 24.2 -0.1 18.2 29 Dec 2016 228.2 178.8 high 128%
Paraburdoo Aero 38.8 -1.2 44.4 19 Dec 2016 25.1 -0.1 18.4 6 Dec 2016 205.4 159.8 average 129%
Murchison (district 07A)
Meekatharra Airport 37.5 +0.3 43.6 5 Jan 2017 23.8 +0.4 16.6 28 Dec 2016
Mount Magnet Aero 37.0 +0.2 45.1 5 Jan 2017 22.8 +0.2 14.0 22 Feb 2017 78.6 84.7 average 93%
Paynes Find 36.1 -0.2 44.2 27 Jan 2017 20.3 +0.1 12.1 22 Feb 2017 107.6 56.8 high 189%
North Coast (district 08)
Dalwallinu 33.5 -0.9 43.0 4 Jan 2017 16.8 -0.7 9.7 22 Feb 2017 107.0 50.9 v high 210%
Geraldton Airport 31.5   44.2 26 Jan 2017 17.6   11.0 6 Dec 2016
Kalbarri 32.4 -0.6 41.6 24 Feb 2017 19.4 +0.1 12.5 28 Dec 2016 36.2 17.1 high 212%
Morawa Airport 36.2 -0.3 45.0 27 Jan 2017     12.1 29 Dec 2016 34.6 56.6 average 61%
Mullewa 35.9 0.0 44.4 4 Jan 2017 19.7 +0.8 12.2 5 Dec 2016 180.6 40.4 v high 447%
North Island 27.1 -0.5 37.5 26 Jan 2017 20.6 -0.5 17.2 9 Feb 2017 79.0 13.9 v high 568%
Wongan Hills 32.9 -0.9 43.8 4 Jan 2017 16.2 -1.1 10.0 5 Dec 2016 118.0 40.6 v high 291%
Central Coast (district 09)
Badgingarra Research Stn 32.9 -0.9 44.5 28 Jan 2017 16.5 -0.1 9.1 22 Feb 2017 63.0 34.9 high 181%
Bickley 28.4 -1.5 41.0 4 Jan 2017 14.4 -0.6 8.8 13 Jan 2017 171.8 52.9 highest 325%
Garden Island HSF 25.9 -1.3 40.9 21 Dec 2016 17.9 -0.7 13.5 8 Dec 2016 147.0 37.8 v high 389%
Gingin Aero 31.0 -1.4 43.6 4 Jan 2017 15.1 -0.9 6.9 22 Feb 2017 228.8 43.7 highest 524%
Gosnells City 30.9 -1.3 42.5 4 Jan 2017 17.2 -0.7 10.6 28 Dec 2016 114.6 38.9 v high 295%
Jandakot Aero 29.8 -0.9 43.3 21 Dec 2016 15.7 -0.5 7.8 22 Feb 2017 146.4 44.6 v high 328%
Jurien Bay 29.4 -0.3 40.8 26 Jan 2017 16.9 0.0 11.7 6 Dec 2016 98.4 28.6 v high 344%
Karnet 28.7 -1.1 40.2 4 Jan 2017 14.3 -0.6 7.1 22 Feb 2017 181.6 56.4 v high 322%
Lancelin 27.2 -1.7 41.0 21 Dec 2016     11.6 29 Dec 2016 184.9 32.0 highest 578%
Pearce RAAF 31.7 -0.7 44.5 4 Jan 2017 15.4 -1.0 8.5 28 Dec 2016 167.0 31.6 highest 528%
Perth Airport 30.5 -0.4 43.3 4 Jan 2017 16.1 -0.4 7.8 22 Feb 2017 128.2 36.4 v high 352%
Perth Metro 29.8 -1.0 42.4 21 Dec 2016 16.7 -1.0 10.1 22 Feb 2017 192.8 50.1 highest 396%
Rottnest Island 25.5 -0.8 39.8 21 Dec 2016 18.1 -0.7 14.2 8 Dec 2016 117.6 34.0 highest 346%
Swanbourne 27.8 -1.7 42.0 21 Dec 2016 17.2 -0.6 11.6 29 Dec 2016 181.6 38.6 highest 470%
South Coast (district 09A)
Albany 21.7 -0.8 35.9 25 Feb 2017 14.8 -0.1 9.8 24 Jan 2017 89.9 77.3 average 116%
Albany Airport 24.1   39.4 26 Jan 2017 12.4   6.1 24 Jan 2017
Bunbury 28.4 -0.7 39.0 4 Jan 2017 14.0 -1.0 6.3 4 Dec 2016 46.2 37.8 average 122%
Busselton Aero 28.7 -0.8 38.3 4 Jan 2017 12.8 -1.0 5.6 6 Dec 2016 37.0 26.4 high 140%
Cape Leeuwin 22.5 -0.3 29.7 19 Feb 2017 16.4 -0.3 11.7 2 Dec 2016 44.4 52.6 average 84%
Cape Naturaliste 25.2 +0.2 35.3 21 Dec 2016 14.4 -0.6 9.7 2 Dec 2016 29.6 35.5 average 83%
Collie East 29.3 -0.8 40.4 4 Jan 2017 12.0 -1.0 5.1 8 Dec 2016 117.2 51.8 high 226%
Dwellingup 29.3 +0.4 40.7 4 Jan 2017 13.8 0.0 7.5 29 Dec 2016 174.0 58.5 v high 297%
Esperance 25.0 -0.7 42.6 5 Jan 2017 15.0 -0.4 8.7 9 Dec 2016
Esperance Aero 27.1 +0.1 43.0 5 Jan 2017 14.1 -0.5 8.9 6 Dec 2016 264.6 76.6 highest 345%
Hopetoun North 24.8 -0.2 44.9 5 Jan 2017 14.5 -0.5 7.0 9 Dec 2016 194.0 93.8 v high 207%
Jarrahwood 29.0 +0.1 39.8 4 Jan 2017 11.4 -1.1 4.0 8 Dec 2016 50.4 45.9 average 110%
Mandurah 28.0 -0.8 39.5 21 Dec 2016 17.7 -0.8 12.8 8 Dec 2016 98.8 44.8 high 221%
Manjimup 26.7 +0.3 39.7 4 Jan 2017 12.0 -0.7 7.2 2 Dec 2016 94.2 63.8 high 148%
North Walpole 23.3 -0.7 34.8 25 Feb 2017 13.0 -1.3 7.6 5 Dec 2016 110.2 95.6 high 115%
Rocky Gully 26.1 -0.7 40.2 4 Jan 2017 11.1 -1.3 5.1 1 Jan 2017 87.0 69.5 average 125%
Shannon 25.0 -0.9 38.9 4 Jan 2017 11.9 -0.6 6.4 24 Jan 2017 104.8 62.0 high 169%
Witchcliffe 25.6 -0.6 36.7 21 Dec 2016 12.8 -0.8 6.3 2 Dec 2016 51.4 34.2 high 150%
North Central (district 10)
Bencubbin 32.7 -0.8 42.6 5 Jan 2017 17.4 0.0 10.6 22 Feb 2017 70.2 50.2 high 140%
Cunderdin Airfield 32.7 -1.3 44.4 28 Jan 2017 15.4 -1.2 8.5 6 Jan 2017 181.0 48.4 highest 374%
Northam 32.1 -1.3 45.0 28 Jan 2017 15.7 -0.9 8.9 22 Feb 2017 261.9 35.2 highest 744%
York 32.3 -1.1 43.7 4 Jan 2017 14.1 -1.6 7.5 13 Jan 2017 248.6 62.4 highest 398%
South Central (district 10A)
Beverley 32.0 -1.4 43.0 4 Jan 2017 14.8 -1.0 8.6 22 Feb 2017 228.8 37.2 highest 615%
Brookton 31.3 -0.8 42.8 4 Jan 2017 14.3 -0.7 7.2 22 Feb 2017 212.2 39.3 highest 540%
Corrigin 31.0 -0.6 42.0 28 Jan 2017 14.3 -1.0 8.4 22 Feb 2017
Hyden 32.1 -0.8 44.2 5 Jan 2017 14.4 -0.8 7.9 8 Dec 2016 206.5 55.6 v high 371%
Jacup 27.1 -0.1 43.3 5 Jan 2017 12.2 -0.6 6.1 20 Jan 2017 146.0 84.7 high 172%
Katanning 28.5 -1.0 40.3 4 Jan 2017 12.1 -1.1 5.8 8 Dec 2016 228.4 67.3 v high 339%
Lake Grace 29.5 -0.9 42.0 5 Jan 2017 14.1 -0.7 7.6 8 Dec 2016 170.8 78.2 high 218%
Narembeen 32.0 -1.0 42.4 28 Jan 2017 15.5 -0.5 8.6 8 Dec 2016 228.7 49.1 highest 466%
Narrogin 29.5 -0.5 40.7 11 Jan 2017 13.8 +0.1 8.1 8 Dec 2016 193.4 44.1 v high 439%
Newdegate Research Station 29.7 -0.7 43.7 5 Jan 2017 12.1 -1.2 4.3 8 Dec 2016 186.2 57.9 v high 322%
Ongerup 27.6 -0.4 41.0 5 Jan 2017 13.0 -0.6 7.2 4 Dec 2016 217.4 56.5 highest 385%
Ravensthorpe 27.2 -1.0 43.0 5 Jan 2017 13.5 -0.3 6.6 30 Dec 2016 287.6 75.9 v high 379%
Wagin 29.8 -0.5 41.1 4 Jan 2017 13.2 -1.0 7.5 8 Dec 2016 204.8 42.5 v high 482%
Wandering 30.2 -1.3 42.4 4 Jan 2017 12.7 -1.0 5.2 29 Dec 2016 203.2 52.7 v high 386%
Eucla (district 11)
Eucla 27.2 +1.8 43.0 16 Jan 2017 16.7 +0.4 9.6 16 Dec 2016 119.6 53.4 v high 224%
Eyre 27.7 +1.5 40.6 29 Jan 2017 14.6 -0.5 2.5 25 Jan 2017 141.5 57.4 v high 247%
Forrest 31.6 -0.7 43.9 6 Jan 2017 16.2 +0.3 10.3 9 Dec 2016 102.8 79.4 average 129%
Red Rocks Point 25.8 +0.9 43.4 12 Dec 2016 17.4 -0.5 11.5 20 Feb 2017 81.0 84.6 average 96%
South East (district 12)
Bulga Downs 36.6 -0.3 44.1 11 Dec 2016 21.2 -0.2 13.3 22 Feb 2017 100.4 74.0 high 136%
Kalgoorlie-Boulder Airport 31.4 -1.2 40.7 11 Dec 2016 17.5 -0.1 9.9 22 Feb 2017 221.4 75.3 v high 294%
Laverton Aero 34.4 0.0 42.3 3 Dec 2016 20.2 -0.4 12.7 14 Dec 2016 285.6 139.6 high 205%
Leinster Aero 36.0 0.0 42.5 11 Dec 2016 21.9 -0.3 14.8 14 Dec 2016 158.2 107.6 high 147%
Leonora Aero 35.2   43.1 11 Dec 2016 21.2   13.4 14 Dec 2016 189.0 109.0 high 173%
Munglinup West 27.7 -0.8 44.2 5 Jan 2017 13.5 -0.6 8.0 24 Jan 2017 236.2 109.7 v high 215%
Norseman Aero 30.6 -1.1 41.6 27 Jan 2017 14.6 -0.7 6.4 8 Dec 2016 111.0 88.4 high 126%
Salmon Gums Res.Stn. 28.8 -1.0 41.6 5 Jan 2017 12.9 -0.5 2.5 2 Dec 2016 203.2 71.1 v high 286%
Southern Cross Airfield 32.7 -1.1 44.6 5 Jan 2017 16.7 -0.3 7.5 22 Feb 2017 155.0 72.4 v high 214%
Yeelirrie 37.0 +0.3 43.0 5 Jan 2017 21.8 +0.6 12.5 23 Feb 2017 98.5 81.3 average 121%
North East (district 13)
Carnegie 36.6 -1.1 43.5 19 Dec 2016 23.1 +0.1 16.6 14 Dec 2016 258.2 113.7 v high 227%
Giles Meteorological Office 35.5 -0.9 40.7 1 Dec 2016 22.5 -0.3 14.5 20 Feb 2017 236.4 122.5 high 193%
Telfer Aero 37.5 -2.3 44.4 18 Dec 2016 25.5 -0.2 21.2 7 Jan 2017 520.6 209.6 highest 248%
Warburton Airfield 35.6 -1.4 41.8 2 Dec 2016 22.4 +0.2 15.1 14 Dec 2016 308.8 101.2 v high 305%
Wiluna 37.2 +0.1 42.0 5 Jan 2017     17.0 14 Dec 2016 154.4 97.8 high 158%
Offshore Islands (district 200)
Adele Island 30.9   35.0 9 Dec 2016     24.5 24 Feb 2017
Browse Island 30.0   34.5 7 Dec 2016 26.6   23.1 19 Dec 2016
Christmas Island Aero 28.2 +0.3 29.8 12 Dec 2016 23.0 +0.3 20.4 29 Dec 2016 733.0 858.4 average 85%
Cocos Island Airport 30.0 +0.3 32.8 23 Feb 2017 24.8 -0.1 22.4 14 Jan 2017
Rowley Shoals 29.4   31.5 14 Dec 2016     22.9 2 Feb 2017
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 Wednesday 1 March 2017. 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

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