Western Australia in summer 2015-16: wet in the south, dry in the north

Summer rainfall was near average for Western Australia, but was very much above average in the southwest. Both mean maximum temperature and mean minimum temperature were above average for the State as a whole.

  • Above average mean maximum temperature for WA
  • Above average mean minimum temperature for WA
  • Near average rainfall for WA; 6th wettest summer in the Lower Southwest
  • Two tropical cyclones in the WA region

Summer 2015-16 saw below to very much below average rainfall in the Kimberley and Pilbara, with a few sites in the Kimberley recording their lowest summer rainfall on record, or the lowest summer rainfall for at least 20 years. Most of the southern half of the State, saw above average summer rainfall. Many sites in the South West, Great Southern, and South and Southeast Coastal districts recorded summer rainfall totals between 100 mm to 200 mm, and their wettest summer on record or their wettest summer since 1981, mainly as a result of a significant rainfall event in January. A complex low with embedded thunderstorms moved through southwest WA between 18 and 20 January and produced moderate to heavy rainfall, including record high daily summer rainfall at a number of locations. Thunderstorms also brought highest on record summer daily rainfall to sites in the Goldfields and eastern SWLD on 26 January. When averaged across the State, summer rainfall was near average, however, for the South West Land Division, it was above average. For the Lower Southwest (southwest of a line from Jurien Bay to Bremer Bay), it was the sixth wettest summer since comparable records commenced in 1900.

Mean maximum temperatures were above to very much above average in large parts of the Kimberley, east Pilbara, and in parts of the southwest, and a number of sites in the north and west Kimberley had their warmest summer days on record. Significantly below average mean maximum temperatures were confined to parts of the Pilbara coast. Over the most of the southern half of the State, mean maximum temperatures were close to average. Averaged across the State, the mean maximum temperature for summer 2015-16 was about 0.6 °C above average. A cold snap in early December with daily maxima in the mid-to-high teens in southern parts of the SWLD resulted in the equal coldest summer day on record for a couple of Lower West district sites.

Mean minimum temperatures were above average for many northern, eastern, and southern parts of the State, and a number of Kimberley and Pilbara sites had their warmest summer nights on record or warmest summer nights in over 20 years. For WA as a whole, the mean minimum temperature was about 0.4 °C above average, whilst the Lower Southwest recorded a mean minimum 0.6 °C above the summer average, the tenth warmest summer value since comparable records commenced in 1910.

Two tropical cyclones were recorded in the WA region during summer 2015-16: tropical cyclone Stan, which developed off the Pilbara coast on 29 January and tracked south-southeast over the east Pilbara coast as a category two system early on the 31st; tropical cyclone Uriah developed near the Cocos Islands on 13 February and moved to the southwest dissipating over the central Indian Ocean.

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Extremes in summer 2015-16
Hottest day 47.8 °C at Mardie on 12 Feb 2016
47.8 °C at Emu Creek Station on 13 Feb 2016
Warmest days on average 42.3 °C at Marble Bar
Coolest days on average 22.6 °C at Albany
Coldest day 15.6 °C at Narrogin on 5 Dec 2015
15.6 °C at Shannon on 5 Dec 2015
Coldest night 3.2 °C at Jarrahwood on 25 Feb 2016
Coolest nights on average 12.9 °C at Rocky Gully
Warmest nights on average 27.8 °C at Broome Airport
Warmest night 33.4 °C at Telfer Aero on 4 Jan 2016
Warmest on average overall 34.3 °C at Marble Bar
Coolest on average overall 19.3 °C at North Walpole
Wettest overall 729.0 mm at Theda
Driest overall 1.0 mm at Port Hedland Airport
Wettest day 125.0 mm at Carlindie on 31 Jan 2016
Strongest wind gust 133 km/h at Rowley Shoals on 30 Jan 2016

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
Nannup 90.0 on 19 Jan 2016 62.7 on 2 Feb 1953 114
Deeside 88.0 on 19 Jan 2016 60.5 on 7 Jan 1976 111
Pemberton 73.2 on 19 Jan 2016 60.4 on 7 Jan 1976 76
Frankland 40.0 on 20 Jan 2016 33.0 on 6 Jan 2011 46
Wyndarra 101.2 on 19 Jan 2016 64.6 on 22 Jan 1982 43
Jarrahwood 67.0 on 20 Jan 2016 66.8 on 7 Jan 1976 42
Paynedale 51.5 on 20 Jan 2016 50.0 on 12 Dec 1996 39
Gibb Rock 69.4 on 26 Jan 2016 51.8 on 22 Jan 2000 36
Koorarawalyee 48.6 on 26 Jan 2016 34.2 on 23 Jan 2014 29
Carbarup 44.6 on 21 Jan 2016 40.0 on 4 Dec 2001 28
Ludlow 34.2 on 20 Jan 2016 31.8 on 6 Jan 2011 22



Record highest summer total rainfall
New record
(mm)
Old
record
Years of
record
Average for
summer
Pemberton 181.4 161.1 in 1954 75 76.0
Tamar 185.8 185.0 in 2001 52 77.2
Chapman Hill 102.8 97.6 in 1996 51 32.5
Gairdner 216.7 169.0 in 1981 48 69.0
Jarrahwood 162.2 121.8 in 1996 41 45.8
Denbarker 194.0 186.0 in 1996 40 79.5
Perivale Orchard 110.0 95.2 in 1996 31 33.9
Little Chorkerup 169.5 135.2 in 2010 29 70.1
Rocky Gully 159.8 152.4 in 1996 20 68.6

Highest summer total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
summer
Greenbushes 166.1 183.0 in 1917* 50.9
Nannup 135.1 193.2 in 1938* 47.4
Kirup 166.5 177.6 in 1917* 47.7
Nyerilup 145.2 238.0 in 1954* 54.5
Northcliffe 191.8 212.0 in 1954* 81.9
Woodanilling 116.0 189.2 in 1954* 41.4
Frankland 134.7 158.8 in 1938* 46.3
Borden 162.0 216.5 in 1981 51.7
Broomehill 129.5 249.0 in 1981 45.4
Gnowangerup 186.4 213.7 in 1981 51.5
Kendenup 208.2 214.4 in 1981 58.3
Mount Barker 204.6 228.6 in 1981 77.2
White Gums 142.8 204.7 in 1981 54.5
Windrush 176.2 183.5 in 1981 78.8
Cherry Tree 144.2 238.2 in 1981* 43.0
Kojonup 169.8 244.8 in 1981* 44.0
Mount Walker 139.2 197.6 in 1977* 50.3
Boscabel 208.8 276.2 in 1981* 43.4
Chamingup 128.4 271.0 in 1981* 44.0
Amelup 155.8 221.0 in 1981* 43.0
Riverdale 141.0 240.0 in 1981* 40.6
Chillinup 167.1 252.0 in 1981* 58.2
Horseshoe 132.0 253.2 in 1981* 41.6
Cowaramup 115.4 126.6 in 1988* 44.5
Windy Harbour 112.9 126.2 in 1988* 58.5

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




Record lowest summer total rainfall
New record
(mm)
Old
record
Years of
record
Average for
summer
Port Hedland Airport 1.0 1.2 in 1991 73 175.0
Balgo Hills 47.5 56.8 in 1956 67 214.1
Cygnet Bay 42.5 65.6 in 1978 50 488.1
Dampier Downs 141.6 160.4 in 1991 41 417.2

Lowest summer total rainfall for at least 20 years
Observed
(mm)
Most recent
lower
Average for
summer
Derby Aero 141.0 65.1 in 1958* 466.3
Kimberley Downs 178.0 160.6 in 1991* 479.5

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




Record highest summer temperature
New record
(°C)
Old
record
Years of
record
Average for
summer
Halls Creek Airport 44.9 on 6 Jan 2016 = 44.9 on 16 Dec 1972 72 36.7



Record lowest summer daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
summer
Gosnells City 19.4 on 5 Dec 2015 = 19.4 on 6 Dec 2007 25 32.3
Perth Metro 19.0 on 5 Dec 2015 19.5 on 1 Dec 1998 23 30.7
Gingin Aero 19.5 on 5 Dec 2015 = 19.5 on 6 Dec 2005 20 32.4



Record highest summer mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
summer
Troughton Island 33.2 32.9 in 2002 35 32.1
Derby Aero 38.5 37.5 in 2004 29 35.6
Curtin Aero 38.9 = 38.9 in 2004 24 36.7

Highest summer mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
summer
Christmas Island Aero 29.1 29.7 in 1982* 27.9

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




Record highest summer daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
summer
Christmas Island Aero 26.1 on 15 Jan 2016 25.7 on 28 Feb 1988 43 22.6
Telfer Aero 33.4 on 4 Jan 2016 33.0 on 19 Feb 1992 42 25.6
Cygnet Bay 30.5 on 2 Dec 2015 29.9 on 24 Dec 2005 30 25.4



Record lowest summer temperature
New record
(°C)
Old
record
Years of
record
Average for
summer
Murchison 11.5 on 6 Dec 2015 12.4 on 3 Dec 2005 27 22.0
Rottnest Island 10.8 on 5 Dec 2015 10.9 on 15 Feb 1990 27 18.8
Pardoo Station 17.0 on 28 Feb 2016 17.5 on 9 Dec 1994 23 25.5



Record highest summer mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
summer
Broome Airport 27.8 27.5 in 1958 76 26.3
Cocos Island Airport 26.0 = 26.0 in 1997 63 24.8
Christmas Island Aero 24.0 23.7 in 2012 42 22.6
Troughton Island 27.6 27.5 in 2004 35 26.6
Derby Aero 27.2 26.7 in 2004 29 25.8
Cygnet Bay 26.7 26.5 in 2004 28 25.4
Mount Elizabeth 22.9 22.6 in 2009 21 22.1

Highest summer mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
summer
Telfer Aero 26.9 27.4 in 1990 25.6
Curtin Aero 25.6 25.9 in 1993 24.9



Record highest summer mean temperature
New record
(°C)
Old
record
Years of
record
Average for
summer
Cocos Island Airport 28.3 = 28.3 in 1997 63 27.3
Christmas Island Aero 26.5 26.4 in 1982 42 25.3
Troughton Island 30.4 30.1 in 2012 35 29.4
Derby Aero 32.8 32.1 in 2004 29 30.7
Doongan 28.9 = 28.9 in 2004 25 28.1
Curtin Aero 32.2 32.1 in 1993 24 30.8
Mount Elizabeth 28.5 = 28.5 in 2002 21 27.6

Highest summer mean temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
summer
Broome Airport 31.0 31.1 in 1987 29.8
Kununurra Aero 31.5 32.4 in 1991 30.5



Summary statistics for summer 2015-16
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
summer
2015-16
Diff
from
average
Highest for
summer
2015-16
Mean for
summer
2015-16
Diff
from
average
Lowest for
summer
2015-16
Total for
summer
2015-16
Average
for
summer
Rank of
summer
2015-16
Fraction of
summer
average
North Kimberley (district 01)
Doongan 34.6 +1.2 38.9 3 Jan 2016 23.3 +0.5 20.5 16 Dec 2015 548.8 762.8 low 72%
Mount Elizabeth 34.1 +1.0 40.0 6 Jan 2016 22.9 +0.8 20.5 16 Dec 2015 651.1 652.3 average 100%
Troughton Island 33.2 +1.1 35.1 16 Jan 2016 27.6 +1.0 22.5 17 Dec 2015 237.2 571.6 low 41%
Wyndham Aero 38.2 +1.5 43.2 16 Feb 2016 26.8 +0.6 21.3 30 Dec 2015 480.0 559.8 average 86%
East Kimberley (district 02)
Argyle Aerodrome 37.7 +1.2 41.7 5 Jan 2016 26.4 +0.8 21.7 2 Dec 2015 424.6 483.5 average 88%
Halls Creek Airport 37.4 +0.7 44.9 6 Jan 2016 24.7 +0.5 21.3 27 Feb 2016 346.6 380.8 average 91%
Kununurra Aero 37.4 +1.4 41.4 15 Feb 2016 25.6 +0.5 21.7 12 Dec 2015 440.0 560.2 average 79%
Warmun 38.4 +1.2 43.0 6 Jan 2016 25.6 +0.8 22.8 24 Dec 2015 392.3 472.0 average 83%
West Kimberley (district 03)
Bidyadanga 34.8 +0.2 43.1 17 Feb 2016 27.0 +1.2 23.8 9 Jan 2016 135.9 318.8 low 43%
Broome Airport 34.2 +0.8 40.5 8 Jan 2016 27.8 +1.5 22.7 4 Dec 2015 219.8 415.6 low 53%
Curtin Aero 38.9 +2.2 43.9 6 Jan 2016 25.6 +0.7 22.4 5 Dec 2015 211.4 573.1 low 37%
Cygnet Bay     38.8 14 Dec 2015 26.7 +1.3 22.0 7 Dec 2015 42.5 488.1 lowest 9%
Derby Aero 38.5 +2.9 42.2 8 Feb 2016 27.2 +1.4 21.7 27 Feb 2016 141.0 466.3 v low 30%
Fitzroy Crossing Aero 39.2 +1.4 44.8 6 Jan 2016 25.8 +0.6 21.8 2 Dec 2015 451.4 459.0 average 98%
De Grey (district 04)
Bedout Island 33.2   37.4 17 Feb 2016 26.7   24.8 24 Dec 2015
Karratha Aero 36.3 +0.5 46.1 11 Feb 2016 26.0 -0.3 21.5 7 Dec 2015 14.4 135.7 low 11%
Legendre Island 32.6   40.1 11 Feb 2016 25.7   23.6 22 Dec 2015
Mandora 36.1 -0.1 45.1 11 Feb 2016 25.3 +0.4 22.0 8 Dec 2015 109.6 220.8 average 50%
Marble Bar 42.3 +1.5 47.4 5 Jan 2016 26.2 -0.1 22.3 14 Dec 2015
Port Hedland Airport 36.5 +0.1 45.0 11 Feb 2016 25.5 +0.5 21.3 7 Dec 2015 1.0 175.0 lowest 1%
Roebourne Aero 39.6 +0.9 47.0 11 Feb 2016 25.2 -0.5 18.2 7 Dec 2015 39.2 144.1 low 27%
Fortescue (district 05)
Barrow Island Airport 32.4 -0.7 40.6 19 Feb 2016 24.8 -0.8 22.0 23 Dec 2015 11.2 77.8 average 14%
Learmonth Airport 36.8 -0.7 46.0 13 Feb 2016 21.6 -1.1 14.5 6 Dec 2015 5.2 79.7 low 7%
Mardie 36.8 -0.9 47.8 12 Feb 2016 24.5 0.0 16.2 7 Dec 2015 70.8 108.9 average 65%
Onslow Airport 35.6 -0.6 46.9 18 Feb 2016 23.8 -0.1 18.7 6 Dec 2015 10.4 104.4 low 10%
Wittenoom 40.4 +1.4 46.0 16 Dec 2015 26.1 +0.5 20.7 1 Feb 2016 97.2 268.0 low 36%
West Gascoyne (district 06)
Carnarvon Airport 30.6 -0.5 43.1 7 Feb 2016 22.1 -0.1 17.1 6 Dec 2015 3.0 37.2 low 8%
Denham 30.4 -0.2 42.5 7 Feb 2016 22.1 +0.2 17.0 2 Feb 2016 6.4 25.3 average 25%
Emu Creek Station 39.9 -0.5 47.8 13 Feb 2016 22.7 -1.3 16.5 6 Dec 2015 20.1 125.6 v low 16%
Murchison 37.6 -1.0 45.2 13 Feb 2016 21.9 -0.1 11.5 6 Dec 2015 45.1 64.1 average 70%
Shark Bay Airport 33.1 -0.7 46.0 8 Feb 2016 20.6 -0.7 15.8 6 Dec 2015 6.2 42.7 average 15%
East Gascoyne (district 07)
Newman Aero 39.4 +1.0 45.5 31 Dec 2015     16.8 7 Dec 2015 90.0 177.6 low 51%
Paraburdoo Aero 40.3 +0.3 44.9 13 Feb 2016 24.8 -0.4 17.1 7 Dec 2015 166.8 158.7 average 105%
Murchison (district 07A)
Meekatharra Airport 37.6 +0.5 43.4 30 Dec 2015 23.3 -0.1 12.8 6 Dec 2015 46.8 80.7 average 58%
Mount Magnet Aero 36.7 -0.1 43.7 2 Jan 2016 22.4 -0.2 11.8 6 Dec 2015 46.6 84.9 low 55%
Paynes Find 36.0 -0.3 44.0 11 Feb 2016 20.1 -0.1 9.4 6 Dec 2015 53.6 55.9 average 96%
North Coast (district 08)
Dalwallinu 33.8 -0.7 44.1 11 Feb 2016 17.7 +0.2 8.8 6 Dec 2015
Geraldton Airport 31.7   45.1 28 Dec 2015 18.3   10.2 8 Dec 2015 37.0
Kalbarri 31.8 -1.2 43.5 8 Feb 2016 19.2 -0.1 12.4 6 Dec 2015 17.4 16.7 average 104%
Morawa Airport 35.3 -1.2 44.4 11 Feb 2016 19.4 +0.1 9.9 6 Dec 2015 127.6 57.8 high 221%
Mullewa 35.5 -0.4 45.0 11 Feb 2016 19.0 +0.1 9.0 20 Dec 2015 33.9 39.2 average 86%
North Island 27.7 +0.1 36.8 29 Jan 2016 20.9 -0.2 16.5 5 Dec 2015 12.8 9.5 high 135%
Wongan Hills 33.8 0.0 44.7 11 Feb 2016 17.3 0.0 9.5 1 Feb 2016 95.2 39.8 high 239%
Central Coast (district 09)
Badgingarra Research Stn 33.2 -0.6 44.0 10 Feb 2016 17.0 +0.4 7.0 8 Dec 2015 55.2 34.3 high 161%
Bickley 29.5 -0.4 40.9 10 Feb 2016 15.4 +0.4 8.2 1 Feb 2016 86.8 50.3 high 173%
Garden Island HSF 27.8 +0.6 41.3 8 Feb 2016 18.6 0.0 13.3 8 Dec 2015 52.0 30.5 average 170%
Gingin Aero 32.6 +0.2 44.4 10 Feb 2016 16.3 +0.3 6.5 8 Dec 2015 43.4 34.4 average 126%
Gosnells City 31.8 -0.5 42.8 8 Feb 2016 18.7 +0.8 9.8 1 Feb 2016 22.2 37.5 average 59%
Jandakot Aero 31.1 +0.4 42.4 7 Jan 2016 16.7 +0.5 6.5 1 Feb 2016 52.4 42.1 high 124%
Jurien Bay 29.9 +0.2 42.5 8 Feb 2016 17.7 +0.8 11.7 2 Feb 2016 17.4 27.1 average 64%
Karnet 29.3 -0.5 40.5 9 Feb 2016 15.4 +0.5 6.2 1 Feb 2016 92.3 54.3 high 170%
Lancelin 28.6 -0.3 41.6 8 Feb 2016 17.6 +0.3 11.8 2 Feb 2016 39.5 29.0 high 136%
Pearce RAAF 33.2 +0.8 45.1 10 Feb 2016 17.0 +0.6 8.1 8 Dec 2015 36.6 28.9 high 127%
Perth Airport 31.8 +0.9 43.0 7 Jan 2016 17.5 +1.0 7.1 1 Feb 2016 41.6 35.1 high 119%
Perth Metro 31.2 +0.5 42.5 8 Feb 2016 17.8 +0.1 9.9 1 Feb 2016 29.4 35.5 average 83%
Rottnest Island 27.1 +0.8 40.6 8 Feb 2016 18.8 0.0 10.8 5 Dec 2015 45.8 28.9 high 158%
Swanbourne 29.5 -0.1 42.8 8 Feb 2016 18.4 +0.6 11.6 6 Dec 2015 35.0 32.1 average 109%
South Coast (district 09A)
Albany 22.6 +0.1 32.0 5 Feb 2016 16.6 +1.7 12.1 10 Dec 2015
Albany Airport 24.7   38.9 8 Feb 2016 14.3   6.2 2 Dec 2015 170.2
Bridgetown 29.2 +0.1 39.9 8 Feb 2016 13.1 +0.5 3.5 25 Feb 2016 99.4 45.9 high 217%
Bunbury 29.5 +0.4 40.0 8 Feb 2016 15.5 +0.5 7.0 1 Feb 2016 54.2 37.4 high 145%
Busselton Aero 29.4 -0.1 39.0 8 Feb 2016 14.3 +0.5 5.5 5 Dec 2015 71.8 25.8 v high 278%
Cape Leeuwin 22.9 +0.2 29.0 9 Jan 2016 17.2 +0.5 13.3 1 Feb 2016 77.2 52.6 high 147%
Cape Naturaliste 26.9 +1.9 37.6 7 Jan 2016 15.6 +0.7 10.0 25 Feb 2016 70.4 35.5 high 198%
Collie East 30.2 +0.1 40.3 9 Feb 2016 13.2 +0.2 4.6 1 Feb 2016 96.8 47.2 high 205%
Dwellingup 30.0 +1.1 40.8 10 Feb 2016 14.8 +1.0 6.5 2 Feb 2016 75.4 57.1 high 132%
Esperance 25.9 +0.2 43.0 11 Feb 2016 16.0 +0.6 9.1 2 Dec 2015 109.4 69.9 high 157%
Esperance Aero 28.2 +1.2 43.8 11 Feb 2016 14.9 +0.3 8.1 25 Feb 2016 110.6 72.4 high 153%
Hopetoun North 23.7 -1.4 41.5 29 Dec 2015 13.4 -1.7 6.4 27 Dec 2015 123.0 88.8 high 139%
Jarrahwood 29.9 +1.0 40.2 8 Feb 2016 13.3 +0.8 3.2 25 Feb 2016 162.2 45.8 highest 354%
Mandurah 29.2 +0.4 40.8 7 Jan 2016 18.8 +0.3 11.8 2 Feb 2016 37.2 41.2 average 90%
Manjimup 27.7 +1.3 39.9 8 Feb 2016 13.6 +0.9 7.3 26 Dec 2015 126.2 63.5 v high 199%
North Walpole 24.1 +0.1 39.4 8 Feb 2016 14.5 +0.3 9.7 2 Dec 2015 182.6 94.4 high 193%
Rocky Gully 26.7 -0.2 39.0 23 Dec 2015 12.9 +0.6 5.3 25 Feb 2016 159.8 68.6 highest 233%
Shannon 25.5 -0.4 38.7 8 Feb 2016 13.3 +0.8 6.4 10 Dec 2015
Witchcliffe 26.5 +0.3 39.6 8 Feb 2016 13.8 +0.2 4.9 5 Dec 2015 45.2 33.8 average 134%
North Central (district 10)
Bencubbin 33.0 -0.5 43.0 11 Feb 2016 17.6 +0.2 9.9 6 Dec 2015
Cunderdin Airfield 34.0 0.0 45.9 11 Feb 2016 16.8 +0.2 8.5 8 Dec 2015 58.2 41.5 high 140%
Merredin 33.2 +0.1 44.1 11 Feb 2016 17.8 +0.6 9.3 1 Feb 2016 59.4 44.2 high 134%
Northam 33.4 0.0 45.1 11 Feb 2016 17.0 +0.4 9.2 1 Feb 2016 82.6 33.5 v high 247%
York 33.2 -0.2 44.5 11 Feb 2016     8.4 1 Feb 2016 116.1 53.1 high 219%
South Central (district 10A)
Beverley 33.4 0.0 44.8 11 Feb 2016 15.9 +0.1 7.8 8 Dec 2015 106.0 35.7 v high 297%
Brookton 32.0 -0.1 44.3 11 Feb 2016 15.9 +0.9 7.5 8 Dec 2015 73.6 37.5 high 196%
Hyden 33.0 +0.1 44.2 11 Feb 2016 15.6 +0.5 6.5 8 Dec 2015 99.1 53.8 high 184%
Jacup 27.8 +0.7 43.2 29 Dec 2015 13.3 +0.5 5.1 25 Feb 2016 164.8 81.9 high 201%
Katanning 29.3 -0.2 42.1 29 Dec 2015 13.9 +0.7 6.8 25 Feb 2016
Lake Grace 30.3 -0.1 43.5 11 Feb 2016 15.3 +0.5 8.9 8 Dec 2015 164.2 73.3 high 224%
Narembeen 33.0 0.0 43.9 11 Feb 2016 16.6 +0.6 8.9 7 Dec 2015
Narrogin 30.7 +0.7 42.5 11 Feb 2016 15.1 +1.5 7.4 1 Feb 2016 75.8 42.9 high 177%
Newdegate Research Station 30.8 +0.4 44.3 11 Feb 2016 13.2 -0.1 4.2 25 Feb 2016 135.0 55.8 v high 242%
Ongerup 28.3 +0.3 41.4 29 Dec 2015 14.4 +0.8 6.8 25 Feb 2016 146.8 54.9 v high 267%
Pingelly 31.6 +0.5 43.2 11 Feb 2016 15.6 +0.4 7.0 1 Feb 2016 77.6 37.2 high 209%
Ravensthorpe 28.0 -0.2 41.8 29 Dec 2015     9.0 2 Dec 2015 162.8 74.0 v high 220%
Wagin 30.7 +0.4 41.7 29 Dec 2015 14.8 +0.6 7.7 25 Feb 2016 87.9 41.2 high 213%
Wandering 31.2 -0.3 42.8 10 Feb 2016 14.4 +0.8 5.8 8 Dec 2015 93.6 44.4 high 211%
Eucla (district 11)
Eucla 27.5 +1.9 43.9 12 Jan 2016 17.0 +0.8 9.6 9 Dec 2015 94.0 52.9 high 178%
Eyre 28.4 +2.2 44.4 30 Dec 2015 14.9 -0.2 5.6 26 Feb 2016 98.4 56.4 high 174%
Forrest 32.5 +0.2 44.5 12 Jan 2016 16.1 +0.2 9.6 12 Dec 2015 96.8 78.2 average 124%
Red Rocks Point 25.6 +0.8 42.0 30 Dec 2015 17.9 0.0 10.6 16 Dec 2015 97.0 84.9 average 114%
South East (district 12)
Bulga Downs 36.2 -0.7 44.1 16 Dec 2015 20.2 -1.3 11.5 6 Dec 2015 142.6 73.7 high 193%
Kalgoorlie-Boulder Airport 32.5 -0.1 41.4 12 Feb 2016 17.9 +0.3 10.2 2 Feb 2016 145.0 73.4 high 198%
Laverton Aero 34.8 +0.4 44.3 18 Dec 2015 20.3 -0.4 13.8 26 Dec 2015 141.0 132.9 average 106%
Leinster Aero 35.8 -0.2 43.9 17 Dec 2015 21.4 -0.9 13.4 6 Dec 2015 146.8 105.3 average 139%
Leonora Aero 35.3   43.7 3 Jan 2016 20.9   13.3 6 Dec 2015 89.0
Munglinup West 28.7 +0.2 42.5 29 Dec 2015 14.1 0.0 8.1 25 Feb 2016 192.8 100.0 high 193%
Norseman Aero 31.7 0.0 42.5 11 Feb 2016 15.4 +0.1 7.0 26 Dec 2015 77.4 87.0 average 89%
Salmon Gums Res.Stn. 30.7 +0.9 43.2 11 Feb 2016 13.7 +0.3 4.6 25 Feb 2016 70.2 69.5 average 101%
Southern Cross Airfield 33.3 -0.5 42.4 11 Feb 2016 17.3 +0.3 10.3 6 Dec 2015 69.8 68.3 average 102%
Yeelirrie 36.9 +0.2 44.3 3 Jan 2016 20.6 -0.6 13.0 6 Dec 2015 91.6 81.1 average 113%
North East (district 13)
Carnegie 38.2 +0.5 44.4 1 Jan 2016 23.3 +0.3 16.5 3 Dec 2015 88.4 111.2 average 79%
Giles Meteorological Office 37.1 +0.7 42.8 13 Feb 2016 22.6 -0.2 16.9 5 Feb 2016 146.2 120.6 high 121%
Telfer Aero 41.5 +1.7 46.5 6 Jan 2016 26.9 +1.3 21.8 16 Jan 2016 87.6 202.2 low 43%
Warburton Airfield 37.3 +0.3 43.3 13 Feb 2016 23.1 +1.0 16.6 3 Feb 2016 102.6 97.5 average 105%
Offshore Islands (district 200)
Browse Island 31.0   34.0 11 Dec 2015     23.3 15 Dec 2015
Christmas Island Aero 29.1 +1.2 30.7 26 Jan 2016 24.0 +1.4 20.4 25 Dec 2015 834.0 861.4 average 97%
Cocos Island Airport 30.6 +0.9 32.1 27 Feb 2016 26.0 +1.2 22.9 18 Jan 2016 740.8 473.9 v high 156%
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 11 am on Tuesday 1 March 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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