Western Australia in spring 2010: A record dry and warm spring for southwest WA

  • 5th highest spring rainfall for WA,but driest spring for southwest WA
  • Mean maximum temperature near average for WA, but highest on record for southwest WA
  • Mean minimum temperature near average for WA.

Rainfall

Rainfall totals in spring 2010 were below to very much below average across the Southwest Land Division (SWLD) of WA, mainly as a result of below average rainfall in September and October. Numerous sites in the region recorded their lowest spring rainfall for 30 years, and many witnessed their driest spring on record (see spring rainfall totals & decile map ). Averaged across the SWLD it was the 5th driest spring since comparable records commenced in 1900, whilst in the Lower Southwest region (southwest of a line from Jurien Bay to Bremer Bay), spring 2010 was the driest spring on record.

In contrast, above to very much above average spring rainfall was recorded over much of the Kimberley, Pilbara, Interior, Gascoyne, Goldfields and Eucla, mainly as a result of above average September and October rainfall. Significant cloudbands in September, as well as thunderstorm activity through the spring months, has produced some heavy daily falls in the Kimberley, Pilbara, Gascoyne and Eucla, with some sites in these regions registering their wettest spring day, as well as wettest spring on record.

Maximum temperature

Spring mean maximum temperatures were above to very much above average over western WA from Onslow in the Pilbara down to Esperance in the South Coastal, with means up to 4 °C above normal between Geraldton and Shark Bay. Many towns in western parts of WA recorded their warmest spring on record as a result of a warmer than normal September and October, followed by a record warm November.

Mean maximum temperatures for spring 2010 were below to very much below average over eastern to central WA from the northeast Kimberley south to the Eucla district and the adjacent Goldfields area, with up to 4 °C cooler than normal mean maxima in the eastern Interior. Giles and Balgo Hills in the Interior experienced their coolest spring days on record (see spring maximum temperature decile map & anomaly map). When averaged over the whole state, spring 2010 was near average, however, it was the warmest spring for the Lower Southwest since comparable records commenced in 1950.

Minimum temperature

Spring mean minimum temperatures were above to very much above average over a large area from the west Kimberley to the Pilbara and Gascoyne, with mean minima up to 3 °C above normal along the Pilbara coast and in the west Gascoyne. Several sites in the west Pilbara and northern Gascoyne recorded their warmest spring nights on record.

In contrast, below to very much below average mean minimum temperatures were recorded in southeastern parts of the Kimberley and northeast Interior, with up to 3 °C cooler than normal mean minima in the northeast Interior. Eyre in the Eucla district and Balgo Hills in the Interior registered their coolest spring nights on record (see spring minimum temperature decile map & anomaly map).

When averaged over the whole state, spring 2010 was near average.

Further information

Media
(03) 9669 4057
Enquiries

Extremes in spring 2010
Hottest day 46.9 °C at Roebourne on 10 Nov
Warmest days on average 38.0 °C at Fitzroy Crossing Aero
Coolest days on average 19.5 °C at Albany
Coldest day 10.9 °C at Kalgoorlie-Boulder Airport on 1 Sep
Coldest night -3.6 °C at Eyre on 8 Oct
Coolest nights on average 5.5 °C at Newdegate Research Station
Warmest nights on average 27.2 °C at Troughton Island
25.4 °C at Wyndham (mainland)
Warmest night 31.9 °C at Telfer Aero on 24 Nov
Wettest overall 387.3 mm at Theda
Wettest day 121.2 mm at Faraway Bay on 14 Oct
Highest wind gust 104 km/h at Cape Leeuwin on 8 Sep

Record highest spring daily rainfall
Highest daily rainfall
in spring 2010 (mm)
Previous highest
for spring
Years of
record
Eucla 61.0 on 3 Sep 49.6 on 13 Oct 1999 100
Mia Mia 46.0 on 29 Nov 28.0 on 3 Nov 1975 85
Broome Airport 57.8 on 20 Nov 45.8 on 6 Nov 2009 72
Wittenoom 41.0 on 12 Sep 25.9 on 23 Oct 1966 61
Pyramid Station 13.8 on 15 Sep 13.4 on 23 Nov 2008 54
Mount Barnett 93.8 on 13 Oct 87.6 on 8 Oct 1911 46
Dampier Salt 12.4 on 15 Sep 7.8 on 27 Sep 1984 42
Karratha Aero 15.4 on 15 Sep 10.0 on 12 Sep 1986 37



Record highest total spring rainfall
Total rainfall
for spring 2010 (mm)
Previous highest
for spring
Years of
record
Average for
spring
Eucla 190.4 149.0 in 1992 126 58.6
Minnie Creek 97.0 48.8 in 1916 102 7.7
Gibb River 270.8 222.8 in 1974 82 83.4
Broome Airport 70.0 64.0 in 1974 71 11.9
Wittenoom 73.6 57.7 in 2006 61 15.8
Derby Aero 107.6 82.4 in 1998 55 17.8
Kuri Bay 158.2 123.4 in 1982 45 37.9
Karratha Aero 20.8 11.2 in 1986 35 2.5



Record lowest total spring rainfall
Total rainfall
for spring 2010 (mm)
Previous lowest
for spring
Years of
record
Average for
spring
Northampton 12.8 15.3 in 2006 129 72.2
Williams 21.6 34.0 in 1944 126 104.6
Beverley 16.6 17.0 in 1944 125 74.0
New Norcia 21.3 21.9 in 1896 123 93.4
Dongara 8.8 13.3 in 1961 120 62.8
Doongin Peak 9.6 14.1 in 1961 117 55.7
Cape Naturaliste 59.0 75.7 in 1957 108 153.0
Berkshire Valley 21.8 22.9 in 1961 104 71.3
Brookton 23.0 27.6 in 1967 102 77.5
Quairading 11.8 18.0 in 2000 100 62.7
Tammin 12.0 16.3 in 1961 100 57.0
Lake Grace Comparison 11.8 13.4 in 2000 99 71.1
Wickepin 14.4 18.9 in 1944 99 75.7
Wattening 25.4 26.4 in 1935 97 73.6
Coorow 9.7 10.5 in 1944 95 58.1
Kulin 13.7 15.6 in 1957 92 65.3
Margaret River 114.2 115.0 in 1969 80 219.1
Bulyee 8.8 18.1 in 1944 71 68.7
Geraldton Airport 11.2 18.4 in 1961 69 60.1
Newdegate Research Station 12.6 16.6 in 2000 55 77.4
Eneabba 16.4 22.3 in 1967 45 83.1
Jurien Bay 26.8 32.1 in 1969 40 87.4
Jarrahwood 82.6 129.6 in 1987 36 204.0
Rosa Brook 103.0 135.3 in 1994 36 243.3
Jandakot Aero 60.4 77.2 in 1994 35 162.9
Swan View 56.8 79.0 in 1994 34 153.1
Pickering Brook 78.2 125.4 in 1994 33 222.0
Paynedale 108.7 110.8 in 1987 30 185.9




Record highest spring temperature
Highest temperature
in spring 2010 (°C)
Previous highest
for spring
Years of
record
Average for
spring
Kalbarri 42.4 on 27 Nov 42.1 on 14 Nov 2002 39 26.0
Yeelirrie 43.2 on 10 Nov 42.6 on 24 Nov 2005 37 29.5
Jarrahwood 37.5 on 19 Nov 36.7 on 22 Nov 1978 32 20.6



Record lowest spring daily maximum temperature
Lowest daily maximum
temperature
in spring 2010 (°C)
Previous lowest
for spring
Years of
record
Average for
spring
Port Hedland Airport 21.4 on 15 Sep 24.4 on 1 Sep 1993 63 34.4
Meekatharra Airport 13.3 on 2 Sep 13.7 on 30 Sep 2009 61 29.5
Wittenoom 16.2 on 14 Sep 16.7 on 16 Sep 1958 59 34.8
Telfer Aero 18.4 on 15 Sep 20.3 on 22 Sep 1974 37 36.4



Record highest spring mean daily maximum temperature
Mean daily maximum
temperature
for spring 2010 (°C)
Previous highest
for spring
Years of
record
Average for
spring
Katanning Comparison 23.5 23.4 in 2006 114 21.2
Cape Leeuwin 20.2 20.0 in 1914 113 18.4
Perth Metro 25.3 24.0 in 2006 113 23.0
Rottnest Island 22.3 21.5 in 2006 113 20.5
Cape Naturaliste 21.7 21.6 in 2006 106 19.1
Donnybrook 24.2 23.5 in 1969 105 21.5
Dwellingup 23.3 22.3 in 1969 71 20.2
Manjimup 21.6 20.9 in 2006 70 19.0
Geraldton Airport 27.6 26.3 in 1969 68 24.5
Perth Airport 25.8 24.7 in 1969 66 22.8
Pemberton 21.3 21.1 in 1945 65 18.9
Carnarvon Airport 28.5 27.9 in 1982 64 25.9
Brookton 25.3 24.9 in 2006 42 23.2
Karnet 23.4 22.8 in 1994 42 20.8
Lancelin 25.5 24.6 in 1978 42 22.5
Wongan Hills 27.0 26.5 in 1969 41 24.8
Jurien Bay 26.2 25.0 in 2006 40 23.3
Pingelly 24.7 24.5 in 2006 38 22.2
Wagin 24.1 23.9 in 2006 35 21.8
Kalbarri 29.4 27.9 in 2007 34 26.0



Record lowest spring mean daily maximum temperature
Mean daily maximum
temperature
for spring 2010 (°C)
Previous lowest
for spring
Years of
record
Average for
spring
Giles Meteorological Office 27.8 28.0 in 1975 54 31.1
Balgo Hills 33.8 34.6 in 2001 31 36.6




Record highest spring daily minimum temperature
Highest daily minimum
temperature
in spring 2010 (°C)
Previous highest
for spring
Years of
record
Average for
spring
Cape Leeuwin 20.7 on 30 Nov 20.5 on 11 Nov 1982 104 12.8
Albany 20.0 on 21 Nov 19.2 on 23 Nov 1915 67 10.6
Kalbarri 27.5 on 18 Nov 27.4 on 6 Nov 1994 39 12.6
Jarrahwood 22.1 on 20 Nov 20.1 on 23 Nov 1977 32 7.7



Record highest spring mean daily minimum temperature
Mean daily minimum
temperature
for spring 2010 (°C)
Previous highest
for spring
Years of
record
Average for
spring
Mardie 19.3 18.9 in 2006 53 17.2
Gascoyne Junction 17.8 17.0 in 2006 42 15.3
Emu Creek Station 18.8 18.3 in 1982 37 16.6
Learmonth Airport 17.6 17.5 in 2006 35 16.1
Troughton Island 27.2 27.1 in 2005 30 26.0



Record lowest spring mean daily minimum temperature
Mean daily minimum
temperature
for spring 2010 (°C)
Previous lowest
for spring
Years of
record
Average for
spring
Eyre 8.1 8.6 in 2003 47 10.0
Balgo Hills 19.8 20.5 in 1950 31 21.8



Summary statistics for spring 2010
Maximum temperatures
for spring
(°C)
Minimum temperatures
for spring
(°C)
Rainfall
for spring
(millimetres)
Mean for
spring
2010
Diff
from
average
Highest for
spring
2010
Mean for
spring
2010
Diff
from
average
Lowest for
spring
2010
Total for
spring
2010
Average
for
spring
Rank of
spring
2010
Fraction of
spring
average
North Kimberley (district 01)
Kalumburu 35.6 -1.1 38.0 24 Nov 22.6 +0.3 12.8 1 Sep 239.2 107.5 v high 223%
Troughton Island 32.3 +0.7 35.1 26 Nov 27.2 +1.2 23.9 1 Sep 62.6 12.4 v high 505%
Truscott 34.5   38.0 21 Nov 24.6   19.8 2 Sep 179.2
Wyndham 37.1 -1.2 41.5 25 Nov 25.4 +0.1 18.7 1 Sep 183.2 80.4 v high 228%
Wyndham Aero 37.6 -1.6 42.6 22 Nov 24.8 +0.2 18.3 1 Sep 154.2 77.9 high 198%
East Kimberley (district 02)
Argyle Aerodrome 36.0 -1.9 42.1 24 Nov 23.9 -0.7 17.0 1 Sep 196.2 96.8 high 203%
Halls Creek Airport 34.5 -2.0 42.1 25 Nov 21.4 -0.7 12.8 20 Sep 119.6 58.8 high 203%
Kununurra Aero 36.4 -1.7 42.4 22 Nov 22.7 -0.4 13.9 1 Sep 154.8 82.1 high 189%
West Kimberley (district 03)
Bidyadanga 35.2 +1.3 42.0 18 Nov 22.2 +1.5 15.1 6 Sep 23.2 9.8 v high 237%
Broome Airport 34.0 +1.3 40.5 28 Sep 23.1 +1.1 16.7 6 Sep 70.0 11.9 highest 580%
Cygnet Bay 34.5 +0.5 38.5 27 Nov 22.4 +1.3 15.5 21 Oct 12.8 7.9 high 162%
Derby Aero 36.8 0.0 42.2 17 Nov 23.3 +0.6 17.2 19 Sep 107.6 17.8 highest 604%
Fitzroy Crossing Aero 38.0 -1.5 44.9 24 Nov 21.8 -0.7 13.9 1 Sep 133.0 45.8 v high 290%
West Roebuck 36.4 +1.1 42.7 28 Sep 21.7 +1.2 14.5 5 Sep 35.8 15.2 high 236%
De Grey (district 04)
Karratha Aero 33.5 +0.4 41.7 5 Nov 21.3 +1.2 11.9 5 Sep 20.8 2.5 highest 832%
Legendre Island 30.2   36.0 30 Nov 22.8   17.0 4 Sep
Mandora 35.5 +0.1 44.8 24 Nov     12.5 3 Sep 10.5 8.5 high 124%
Marble Bar 36.6 -1.2 46.2 10 Nov 21.5 +1.0 10.6 4 Sep 19.8 17.7 high 112%
Port Hedland Airport 35.0 +0.6 44.3 11 Nov 20.6 +2.3 9.7 6 Sep 9.0 4.7 high 191%
Roebourne 36.3 +0.9 46.9 10 Nov 20.1 +0.4 12.6 6 Sep 29.0 3.5 v high 829%
Roebourne Aero 35.8   46.2 10 Nov 20.3   10.2 6 Sep 30.8 6.5 v high 474%
Fortescue (district 05)
Barrow Island Airport 29.8 +1.1 36.3 4 Nov 22.2 +1.0 15.2 6 Sep 8.4 6.1 high 138%
Learmonth Airport 33.2 +1.1 41.3 28 Sep 17.6 +1.5 8.9 4 Sep 0 5.9 lowest 0%
Mardie 34.8 +0.3 41.9 11 Nov 19.3 +2.1 10.3 3 Sep 12.4 3.6 v high 344%
Onslow 32.3 +0.8 41.0 22 Oct 19.7 +3.0 13.4 3 Sep 20.5 3.6 v high 569%
Onslow Airport 33.2 +0.9 40.4 22 Oct 19.6 +2.0 11.9 5 Sep 15.6 5.5 high 284%
Tom Price 32.4 -0.4 40.7 24 Nov     7.5 5 Sep 9.0 17.8 average 51%
Wittenoom 34.1 -0.7 44.0 10 Nov 20.9 +0.6 9.7 4 Sep 73.6 15.8 highest 466%
West Gascoyne (district 06)
Carnarvon Airport 28.5 +2.6 37.3 7 Oct 16.8 +0.5 8.4 3 Sep 7.2 15.2 low 47%
Denham     40.1 27 Nov 18.3 +1.9 10.4 3 Sep 7.4 17.1 low 43%
Emu Creek Station 34.9 +1.1 42.3 24 Nov 18.8 +2.2 11.7 6 Sep 4.6 8.1 average 57%
Gascoyne Junction 33.4 +1.4 42.0 27 Nov 17.8 +2.5 9.2 3 Sep 29.8 11.1 v high 268%
Shark Bay Airport 30.3 +2.5 41.6 27 Nov 16.2 +1.2 7.5 3 Sep 5.4 13.7 low 39%
East Gascoyne (district 07)
Newman Aero 32.5 -1.8 43.0 10 Nov 17.4 +0.8 5.6 5 Sep 56.6 20.4 v high 277%
Murchison (district 07A)
Meekatharra Airport 30.0 +0.5 41.4 10 Nov 15.9 +0.8 5.0 3 Sep 30.0 22.6 high 133%
Mount Magnet Aero 28.7 +0.1 40.6 10 Nov 15.2 +1.2 4.8 3 Sep 40.8 25.2 average 162%
North Coast (district 08)
Dalwallinu 26.9 +1.2 37.5 19 Nov 9.9 +0.3 1.3 13 Sep 37.0 43.1 average 86%
Dalwallinu Comparison 27.0 +1.8 37.7 19 Nov 10.8 +0.4 2.6 13 Sep 39.3 53.7 average 73%
Geraldton Airport 27.6 +3.1 40.9 27 Nov 11.1 -0.2 1.9 14 Sep 11.2 60.1 lowest 18%
Kalbarri 29.4 +3.4 42.4 27 Nov 14.1 +1.5 3.6 3 Sep 21.9 45.4 low 48%
Morawa Airport 29.0 +1.5 38.8 18 Nov 11.5 +0.8 2.6 13 Sep 10.0 41.3 v low 24%
Mullewa 29.3 +2.2 39.3 28 Nov 13.1 +1.8 4.4 13 Sep 5.6 43.4 v low 13%
North Island 25.2 +2.0 34.0 17 Nov 18.1 +1.1 11.9 7 Sep 11.6
Wongan Hills 27.0 +2.2 38.0 19 Nov 10.7 +0.5 1.4 13 Sep 22.6 60.0 v low 38%
Central Coast (district 09)
Bickley 23.1 +2.1 36.7 19 Nov 10.3 +0.6 3.0 13 Sep 76.4 227.4 v low 34%
Champion Lakes 24.8   38.0 19 Nov 12.6   4.8 13 Sep 54.2
Garden Island HSF 23.0   37.0 19 Nov 13.4   7.0 18 Oct 54.4
Gingin Aero 26.3 +2.3 40.2 19 Nov 8.9 -0.4 -0.2 3 Sep 62.2 137.8 v low 45%
Gosnells City 26.2 +2.3 40.5 19 Nov     4.2 10 Sep 47.4 154.8 v low 31%
Jandakot Aero 25.5 +2.8 39.9 19 Nov 9.8 -0.2 0.5 13 Sep 60.4 162.9 lowest 37%
Jurien Bay 26.2 +2.9 40.2 18 Nov 11.0 -0.5 3.4 14 Sep 26.8 87.4 lowest 31%
Karnet 23.4 +2.6 37.0 19 Nov 9.5 +0.3 2.0 10 Sep 77.3 255.6 v low 30%
Lancelin 25.5 +3.0 40.0 18 Nov 11.7 -0.5 4.5 2 Sep 37.0 106.2 v low 35%
Medina Research Centre 25.3 +2.5 41.4 19 Nov 11.0 +0.2 2.2 3 Sep 62.0 149.8 v low 41%
Pearce RAAF 25.9 +2.5 39.1 19 Nov 10.4 0.0 2.5 11 Sep 54.6 128.3 v low 43%
Perth Airport 25.8 +3.0 40.5 19 Nov 10.7 +0.1 2.7 13 Sep 60.6 141.6 v low 43%
Perth Metro 25.3 +2.3 38.8 19 Nov 11.4 -0.2 2.4 13 Sep 75.8 155.5 v low 49%
Rottnest Island 22.4 +1.9 35.3 19 Nov 14.8 +0.7 8.6 13 Sep 59.2 101.3 low 58%
Swanbourne 24.7 +2.6 39.5 19 Nov 12.6 +0.1 4.9 13 Sep 78.8 147.4 v low 53%
South Coast (district 09A)
Albany 19.5 +0.8 35.8 30 Nov 11.9 +1.3 6.4 8 Sep 162.8 225.4 low 72%
Albany Airport 20.2 +1.3 36.4 30 Nov 8.9 -0.4 2.5 12 Oct 157.0 204.3 low 77%
Bridgetown 22.6 +2.1 38.3 20 Nov 6.0 -1.4 -0.8 6 Oct 98.6 167.1 low 59%
Bridgetown Comparison 23.3 +2.3 37.8 20 Nov 6.7 -0.4 0.1 6 Oct 89.0 182.5 v low 49%
Bunbury 23.0 +2.0 35.5 19 Nov 9.3 -0.6 1.4 13 Sep 87.4 134.3 v low 65%
Busselton 22.6 +1.6 34.4 19 Nov 9.4 -0.8 3.7 11 Oct 65.0 139.2 v low 47%
Busselton Aero 23.4 +2.3 36.9 19 Nov 7.8 -1.1 0.8 11 Oct 58.2 138.7 v low 42%
Cape Leeuwin 20.2 +1.8 33.8 3 Nov 13.7 +0.9 8.7 13 Sep 89.4 193.6 v low 46%
Cape Naturaliste 21.7 +2.6 34.0 19 Nov 11.9 +0.6 6.6 6 Oct 59.0 153.0 lowest 39%
Collie East 23.9   37.0 19 Nov 6.5   -0.9 13 Sep 83.8
Donnybrook 24.2 +2.7 38.6 19 Nov 9.1 +0.5 0.6 13 Sep 105.9 199.0 v low 53%
Dwellingup 23.3 +3.1 36.7 19 Nov 8.0 -0.2 0.5 13 Sep 83.8 255.9 v low 33%
Esperance 21.6 +0.5 36.9 20 Oct 10.6 -0.4 5.2 20 Sep 75.2 141.3 low 53%
Esperance Aero 21.6 +0.4 36.3 20 Oct 9.2 -0.8 4.0 14 Sep 102.4 138.3 low 74%
Harvey 23.8   37.8 19 Nov 9.9   2.8 15 Oct 82.0 195.2 v low 42%
Hopetoun North 21.6 -0.1 38.2 4 Nov 9.6 -0.8 3.4 21 Sep 128.4 125.8 average 102%
Jarrahwood 23.4 +2.8 37.5 19 Nov 6.5 -1.2 -1.5 15 Oct 82.6 204.0 lowest 40%
Mandurah 23.6   35.7 19 Nov 13.6   7.0 10 Sep 43.2
Manjimup 21.6 +2.6 36.6 19 Nov 8.3 -0.2 2.9 6 Oct 116.0 233.0 v low 50%
North Walpole 20.1   36.9 20 Nov 10.2   4.0 14 Sep 146.6
Pemberton 21.3 +2.4 35.4 19 Nov 9.1 +0.3 3.9 14 Sep 143.6 280.0 v low 51%
Rocky Gully 21.3 +2.1 37.7 20 Nov 8.0 -0.2 2.1 6 Oct 135.2 181.4 low 75%
Shannon 20.5 +1.6 35.9 20 Nov 8.1 -0.4 2.5 14 Sep 88.0 259.6 v low 34%
Windy Harbour 20.2 +1.3 35.5 20 Nov 9.3 -1.2 3.0 19 Sep 143.9 218.0 v low 66%
Witchcliffe 21.6 +2.1 36.2 19 Nov 8.7 -0.9 2.4 6 Oct 118.2 212.0 v low 56%
North Central (district 10)
Cunderdin Airfield 27.1 +1.8 38.7 19 Nov 8.4 +0.2 -2.6 13 Sep 9.2 49.9 v low 18%
Merredin 26.6 +2.1 37.0 21 Nov 10.5 +0.7 -1.3 13 Sep 18.6 57.7 v low 32%
Northam 26.8 +2.5 38.8 19 Nov 9.0 -0.4 -0.9 13 Sep 29.9 73.6 v low 41%
York 26.5 +2.1 39.0 19 Nov 6.7 -1.0 -2.2 13 Sep 26.5 71.5 v low 37%
South Central (district 10A)
Brookton 25.3 +2.1 38.1 19 Nov 8.2 +0.3 -1.5 13 Sep 23.7 77.5 lowest 31%
Corrigin 25.3 +2.3 37.0 20 Nov 8.5 +0.1 -0.3 10 Sep 20.6 66.8 v low 31%
Hyden 26.6 +2.2 38.0 30 Nov 8.5 0.0 0.0 11 Sep 16.0 67.2 v low 24%
Jacup 22.8 +1.4 36.4 30 Nov 7.2 -0.6 0.8 10 Sep 64.2 120.5 low 53%
Katanning 23.3 +1.8 37.9 20 Nov 7.0 -0.7 1.3 19 Sep
Katanning Comparison 23.5 +2.3 37.6 20 Nov 7.2 -0.8 1.0 2 Sep 43.6 103.0 v low 42%
Lake Grace 24.3 +1.4 37.3 20 Nov 8.5 -0.4 -0.7 10 Sep 12.2 72.9 v low 17%
Lake Grace Comparison 24.3 +1.5 37.0 20 Nov 8.8 -0.1 0.0 10 Sep 11.8 71.1 lowest 17%
Narembeen 26.6 +2.0 38.0 19 Nov 9.1 +0.1 0.9 13 Sep 17.0 60.2 v low 28%
Narrogin 23.7 +2.3 36.3 19 Nov 8.1 +0.3 -0.2 13 Sep 25.6 95.6 v low 27%
Newdegate Research Station 24.4 +1.6 38.2 20 Nov 5.5 -1.8 -2.4 10 Sep 12.6 77.4 lowest 16%
Ongerup 22.7 +1.7 36.4 20 Nov 7.6 -0.8 0.7 11 Sep 49.2 96.7 v low 51%
Pingelly 24.7 +2.5 37.0 19 Nov 9.0 +0.3 0.0 13 Sep 31.0 80.4 v low 39%
Ravensthorpe 23.0 +0.7 36.3 20 Nov 8.8 -0.3 2.0 15 Sep 79.0 108.6 average 73%
Wagin 24.1 +2.3 37.7 20 Nov 7.7 -0.5 1.0 10 Sep 29.3 87.8 v low 33%
Wandering 24.3 +1.9 37.5 19 Nov 5.7 -1.0 -1.8 14 Sep 21.0 96.8 v low 22%
Eucla (district 11)
Balladonia 24.3 -0.7 37.1 20 Oct 8.4 -0.6 1.5 11 Sep 60.5 65.1 average 93%
Eucla 21.6 -1.3 38.8 10 Nov 11.0 -0.2 3.3 16 Sep 190.4 58.6 highest 325%
Eyre 22.1 -0.6 37.2 10 Oct 8.1 -1.9 -3.6 8 Oct 72.7 63.6 high 114%
Forrest 23.9 -3.2 41.0 22 Nov 9.9 -0.6 4.0 16 Sep 102.0 49.9 v high 204%
Red Rocks Point 20.7   37.6 9 Nov 11.7   4.1 15 Sep 73.6
South East (district 12)
Bulga Downs 29.0   43.4 9 Nov 13.5   4.2 3 Sep 36.4 26.2 high 139%
Kalgoorlie-Boulder Airport 25.3 -0.4 38.0 21 Nov 11.6 +0.6 3.8 13 Sep 44.8 46.5 average 96%
Laverton Aero 26.3 -1.5 42.5 10 Nov 13.6 -0.2 3.4 4 Sep 69.8 39.7 high 176%
Leinster Aero 27.9 -1.3 42.8 10 Nov 14.1 -0.4 3.7 4 Sep 31.6 33.1 average 95%
Leonora 27.6 -1.1 43.0 10 Nov 13.5 -0.1 5.0 4 Sep 40.0 30.4 average 132%
Leonora Aero 27.3   43.6 10 Nov 14.1   5.1 14 Sep 43.0
Munglinup West 23.1   36.7 4 Nov 8.5   2.1 10 Sep 78.8
Norseman 26.0 +1.1 36.0 21 Nov 9.5 -0.3 0.0 14 Sep 35.2 61.5 low 57%
Norseman Aero 25.3 -0.2 36.6 21 Nov 8.4 -0.8 -1.7 14 Sep 25.2 62.5 low 40%
Salmon Gums Res.Stn. 24.5 +1.2 36.6 20 Oct 5.9 -1.9 -3.1 20 Sep 38.6 84.4 low 46%
Southern Cross Airfield 26.3 +0.5 38.3 21 Nov 9.3 +0.5 -2.2 13 Sep 22.6 48.1 low 47%
Yeelirrie 29.0 -0.5 43.2 10 Nov 12.9 +0.8 2.5 4 Sep 63.5 24.1 v high 263%
North East (district 13)
Balgo Hills 33.8 -2.8 42.6 24 Nov 19.8 -2.0 10.6 20 Sep 126.8 36.4 v high 348%
Carnegie 30.5 -1.7 43.2 10 Nov 15.4 -0.2 3.6 4 Sep 41.7 21.2 high 197%
Giles Meteorological Office 27.8 -3.3 39.3 23 Nov 15.5 -1.2 5.3 5 Sep 142.0 53.7 v high 264%
Telfer Aero 35.1 -1.3 45.7 11 Nov 20.6 +0.4 9.5 4 Sep 26.2 19.7 high 133%
Warburton Airfield 28.6 -2.7 42.2 11 Nov 15.7 +0.6 4.4 4 Sep 101.0 43.6 v high 232%
Wiluna 29.6 -0.5 43.1 10 Nov 14.6 +0.8 3.0 6 Sep 57.6 22.3 v high 258%

Notes

A Seasonal Climate Summary is prepared to list 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, usually published in the fourth week of the month.

This statement has been prepared based on information available at 11 am on Wednesday 1 December 2010. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

Averages 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.

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.

Records in this summary are based on sites with at least 30 years of data.

For PDF files of Perth Metro climate statistics for other months, please click here for extremes and here for averages.

Further information

Media
(03) 9669 4057
Enquiries