Western Australia in October 2014: Hottest October on record

October 2014 in WA was the warmest October on record for both mean maximum temperature and mean minimum temperature since records commenced in 1910.

Mean maximum temperatures were above to very much above average across most of the state, with record high mean maxima for October reported in the South West Land Division (SWLD), southern Gascoyne, Goldfields, inland east Pilbara, Southern Interior, and Eucla. Apart from most of the Kimberley, near the WA west coast, and the eastern Eucla coast, mean maximum temperatures were 2 ° C to 4 °C warmer than normal across WA, and were up to 6 °C warmer than normal in the central Southern Interior. Averaged across the state, the mean maximum temperature in October 2014 was 2.9 °C above the long-term average and ranked as the warmest October on record. For the Lower Southwest (southwest of a line from Jurien Bay to Bremer Bay), October 2014 was 2.5 °C above average, and the third warmest October on record.

Mean minimum temperatures were above average to very much above average across much of the state, apart from the central and east Kimberley, and northeast Northern Interior, with record high mean minma reported in the SWLD, southern Gascoyne, Goldfields, and Eucla. Mean minimum temperatures were 2 °C to 3 °C warmer than normal in a broad area across the east Pilbara, western Northern Interior, and central and southeastern WA, and were up to 6 °C warmer than normal in the central Southern Interior, whilst minimum temperatures in the east Kimberley were 1 °C to 2 °C cooler than normal. Averaged across the state, the mean minimum temperature in October 2014 was 2.1 °C above the long-term average and ranked as the warmest October on record. When averaged across the Lower Southwest, October 2014 ranked fifth warmest on record.

Rainfall in October 2014 in WA was above to very much above average in parts of the Pilbara, east Gascoyne, Goldfields, eastern SWLD, and western parts of the Northern and Southern Interior. Large parts of the southern SWLD recorded their wettest October for at least 20 years, and some sites, particularly in the Southeast Coastal, recorded their wettest October on record. Conversely, areas of the west Gascoyne, western SWLD, central and east Kimberley, eastern Northern Interior and northeast Southern Interior recorded below to very much below average rainfall. When averaged across the State as a whole, rainfall in October 2014 was near average; similarly rainfall was also near average for the SWLD and the Lower Southwest when averaged across those regions.

  • Hottest October on record for day-time temperature for WA with a 2.9 °C warm anomaly, 3rd warmest on record for the Lower Southwest
  • Hottest October on record for night-time temperature for WA with a 2.1 °C warm anomaly, 5th warmest on record for the Lower Southwest
  • Bidyadanga recorded a maximum temperature of 45.2 °C on the 9th, the earliest day on record in October in Australia with temperature over 45 °C. The previous record was on the 21st October 2002 when multiple sites in the Kimberley and Pilbara recorded maximum temperatures ranging from 45.2 °C to 46.7 °C. High temperatures in the west Kimberley and east Pilbara in the second week of the month also caused Derby Aerodrome to record its hottest October day in 30 years with 44.1 °C on the 7th.
  • A trough passage through the SWLD on the 16th led to unusually high temperatures across southern WA, with Eneabba (15th) and Esperance Aerodrome (16th) breaking their previous highest October maximum temperature, whilst Balladonia recorded its highest October minimum temperature on the 17th.
  • A low pressure system developed over southwest WA on the 18th and 19th before moving off the south coast on the 20th, bringing widespread thunderstorms and heavy rainfall across central and southern WA. A number of sites recorded daily rainfall totals in the 30 mm to 100 mm range and many sites in the SWLD, as well as Laverton Aerodrome in the Goldfields, recorded their wettest October day on record on the 19th or 20th. A supercell thunderstorm formed near New Norcia on the 18th and tracked to the southwest and over the Perth Metropolitan area in the afternoon producing heavy rainfall and large amounts of small hail. Severe thunderstorms redeveloped again on the 19th with several locations in eastern parts of the SWLD recording heavy rainfall and severe wind gusts.
  • Widespread severe thunderstorms occurred along a surface trough through southern and central parts of the SWLD on the 22nd. Hail larger than 20 cent coins (3 cm) and flash flooding were reported in the proximity of Boyup Brook in the South West district.

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Extremes in October 2014
Hottest day 45.2 °C at Bidyadanga on the 9th
Warmest days on average 41.3 °C at Fitzroy Crossing Aero
Coolest days on average 19.2 °C at Albany
Coldest day 12.8 °C at Jacup on the 18th
Coldest night -3.0 °C at Eyre on the 14th
Coolest nights on average 7.5 °C at Wandering
Warmest nights on average 26.8 °C at Browse Island
25.4 °C at Argyle Aerodrome
Warmest night 30.3 °C at Telfer Aero on the 31st
Warmest on average overall 32.9 °C at Fitzroy Crossing Aero
Coolest on average overall 14.5 °C at Shannon
Wettest overall 155.6 mm at Adina
Wettest day 102.2 mm at Adina on the 20th
Strongest wind gust 117 km/h at Norseman Aero on the 16th

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 October daily rainfall
New record
(mm)
Old
record
Years of
record
Merredin 49.0 on the 19th 30.4 on the 15th in 1975 108
Ravensthorpe 63.8 on the 19th 58.4 on the 18th in 1973 108
White Gums 48.4 on the 20th 41.9 on the 21st in 1949 95
Woodanilling 37.5 on the 20th 34.5 on the 7th in 1947 78
Gorya Valley 48.0 on the 20th 46.6 on the 31st in 2008 77
Cranham 33.6 on the 20th 33.4 on the 27th in 2003 61
Tamar 56.8 on the 20th 54.6 on the 18th in 1947 52
Telina Downs 81.8 on the 20th 49.0 on the 21st in 1969 52
Lorinna 60.6 on the 20th 34.2 on the 28th in 2007 43
Wellstead 52.8 on the 20th 37.8 on the 21st in 1980 41
Merivale Farm 71.0 on the 20th 40.2 on the 18th in 1995 32
Nalyerlup 40.0 on the 20th 38.0 on the 7th in 1992 31
Laverton Aero 31.0 on the 20th 27.0 on the 6th in 2001 21



Record highest October total rainfall
New record
(mm)
Old
record
Years of
record
Average for
October
Telina Downs 115.4 86.0 in 2007 50 43.3
Adina 155.6 147.1 in 1969 46 54.4
Lorinna 86.6 83.2 in 2007 40 43.4
Mordetta 77.4 69.0 in 2008 40 21.8
Merivale Farm 108.8 99.5 in 1990 30 47.6
Nunile 64.4 60.4 in 1999 24 24.8
Laverton Aero 50.6 47.8 in 2001 21 14.9

Highest October total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Years since
higher
Average for
October
Ravensthorpe 115.7 121.4 in 1902* 111 38.5
Corrigin 68.0 99.2 in 1932 82 21.6
Kukerin 132.6 137.2 in 1932* 81 27.6
Colorado 65.4 88.6 in 1932* 80 21.3
Salmon Gums 69.6 73.2 in 1959* 43 26.9
Barrett Meadows 116.2 159.6 in 1977 37 88.6
Goomalling 44.2 45.2 in 1975* 37 20.2
Mount Barker 122.4 126.2 in 1977* 36 68.8
Kendenup 84.2 94.4 in 1980 34 52.5
Kojonolokan Hills 53.6 67.3 in 1980* 31 24.5
Oak Park 90.0 124.6 in 1977* 26 41.3
Albany 118.3 119.4 in 1990 24 79.0
Boscabel 53.4 59.0 in 1989* 24 35.8
Boyup Brook 60.8 66.8 in 1989* 23 44.6

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




Record lowest October total rainfall
New record
(mm)
Old
record
Years of
record
Average for
October
Argyle Aerodrome 0.0 0.2 in 1994 29 33.6



Record highest October temperature
New record
(°C)
Old
record
Years of
record
Average for
October
Bidyadanga 45.2 on the 9th 43.8 on the 14th in 2007 55 34.3
Eneabba 41.0 on the 15th 40.0 on the 30th in 2013 41 26.5
Derby Aero 44.1 on the 7th 43.7 on the 11th in 2013 30 37.1
Esperance Aero 38.9 on the 16th 37.9 on the 19th in 2004 23 21.2



Record highest October mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
October
Kalgoorlie-Boulder Airport 29.4 29.1 in 1988 73 25.8
Wittenoom 38.7 38.6 in 2004 62 35.3
Giles Meteorological Office 35.6 35.4 in 1967 58 31.7
Eyre 26.8 = 26.8 in 2006 55 23.1
Merredin 28.4 27.5 in 2012 48 24.9
Narembeen 27.8 27.6 in 2006 44 25.0
Hyden 27.6 27.5 in 2012 42 24.7
Pingelly 24.8 = 24.8 in 2010 42 22.3
Warburton Airfield 36.1 35.5 in 2004 41 31.7
Telfer Aero 40.0 39.9 in 1991 38 37.1
Paynes Find 30.7 30.4 in 1991 35 27.6
Esperance Aero 24.2 23.9 in 2012 22 21.2
Forrest 30.5 29.7 in 2004 21 27.1
Leinster Aero 32.2 = 32.2 in 2002 20 29.6

Highest October mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Years since
higher
Average for
October
Beverley 26.9 27.0 in 1969* 44 24.4
Brookton 25.9 26.3 in 1969* 44 23.3
Salmon Gums Res.Stn. 26.9 27.5 in 1965* 44 23.4
Wongan Hills 27.7 28.5 in 1969* 42 25.1
Northam 26.7 27.3 in 1983* 29 24.1
Bencubbin 28.1 28.6 in 1991* 21 25.1

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




Record highest October daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
October
Balladonia 22.0 on the 17th 20.9 on the 28th in 2009 48 8.8
Telfer Aero 30.3 on the 31st 30.0 on the 5th in 1978 39 20.9



Record lowest October temperature
New record
(°C)
Old
record
Years of
record
Average for
October
Warmun 10.4 on the 17th 11.8 on the 4th in 1969 53 23.0
Kununurra Aero 13.9 on the 18th = 13.9 on the 15th in 2012 29 23.5
Doongan 14.0 on the 18th = 14.0 on the 2nd in 2002 25 21.2



Record highest October mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
October
Kalgoorlie-Boulder Airport 14.5 13.6 in 1991 73 11.1
Giles Meteorological Office 20.5 20.2 in 2004 58 17.1
Merredin 12.7 12.1 in 1967 48 9.6
Brookton 9.9 9.8 in 2011 46 7.4
Ongerup 9.9 9.8 in 2011 46 8.2
Hyden 10.2 10.1 in 2012 42 8.2
Warburton Airfield 19.9 19.1 in 2004 40 15.5
Paynes Find 13.8 = 13.8 in 2010 35 11.4
Windy Harbour 12.0 11.7 in 2011 27 10.3
Carnegie 19.2 19.1 in 1991 25 16.3
Rottnest Island 15.2 = 15.2 in 1976,1914 115 13.9
Esperance Aero 10.9 = 10.9 in 2011 22 9.7
Laverton Aero 16.9 16.0 in 2009 22 14.1
Forrest 12.0 11.8 in 2011 21 10.5
Leinster Aero 16.8 16.7 in 2012 20 14.8

Highest October mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Years since
higher
Average for
October
Cape Leeuwin 14.4 14.5 in 1914 100 12.6
Balladonia 11.2 12.6 in 1914* 75 8.8
Albany 12.8 13.0 in 1918* 59 10.4
Corrigin 10.4 10.8 in 1967 47 8.2
Lancelin 13.4 13.5 in 1967* 46 11.9
Bencubbin 12.6 12.8 in 1969* 43 9.8
Wagin 9.7 9.8 in 1976* 35 7.8
Cape Naturaliste 12.4 12.9 in 1984 30 11.0
Kalbarri 14.3 14.7 in 1982* 28 12.5
Eyre 11.4 11.6 in 1990 24 10.1

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




Record highest October mean temperature
New record
(°C)
Old
record
Years of
record
Average for
October
Narrogin 16.8 = 16.8 in 2012 95 14.2
Salmon Gums Res.Stn. 18.1 = 18.1 in 1965 76 15.5
Kalgoorlie-Boulder Airport 22.0 21.0 in 2009 73 18.5
Corrigin 18.2 18.1 in 1967 66 15.7
Giles Meteorological Office 28.0 27.7 in 1991 58 24.4
Eyre 19.1 18.9 in 2004 55 16.6
Lancelin 18.9 = 18.9 in 2012 48 17.2
Merredin 20.5 19.8 in 2012 48 17.2
Brookton 18.0 17.9 in 1969 46 15.3
Narembeen 19.5 19.4 in 2008 44 17.0
Hyden 18.9 18.8 in 2012 42 16.5
Wagin 16.9 16.6 in 2012 40 14.8
Warburton Airfield 28.0 27.3 in 2004 40 23.6
Paynes Find 22.2 21.9 in 2006 35 19.5
Carnegie 27.8 27.6 in 2004 25 24.6
Esperance Aero 17.6 17.2 in 2012 22 15.5
Laverton Aero 24.1 23.7 in 2012 22 21.2
Forrest 21.3 20.6 in 2004 21 18.8
Bickley 16.5 16.4 in 2012 20 15.3
Leinster Aero 24.5 24.3 in 2012 20 22.2

Highest October mean temperature for at least 20 years
Observed
(°C)
Most recent
higher
Years since
higher
Average for
October
Beverley 18.2 18.4 in 1969* 44 16.1
Bencubbin 20.4 20.7 in 1969* 42 17.5
Northam 18.6 20.0 in 1969* 42 16.5
Wongan Hills 19.5 20.5 in 1969* 42 17.6
Kellerberrin 18.5 21.2 in 1979* 32 16.8
Wittenoom 31.2 31.3 in 1991 23 28.0
Telfer Aero 31.9 32.1 in 1991* 22 29.0

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




Summary statistics for October 2014
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
October
2014
Diff
from
average
Highest for
October
2014
Mean for
October
2014
Diff
from
average
Lowest for
October
2014
Total for
October
2014
Average
for
October
Rank of
October
2014
Fraction of
October
average
North Kimberley (district 01)
Doongan 37.8 +0.9 40.4 10th 20.6 -0.6 14.0 18th 6.0 34.9 low 17%
Kalumburu 36.3 -0.5 40.2 14th 22.2 -0.3 17.2 18th 18.2 38.8 average 47%
Mount Elizabeth 37.3 +1.3 40.1 30th 19.2 0.0 13.3 19th 0.5 31.7 v low 2%
Troughton Island 31.9 +0.1 33.3 17th 26.6 +0.3 24.6 1st 0 2.7 lowest 0%
Truscott 33.7 -0.6 36.9 14th 24.2 -0.2 21.2 4th 11.8 24.7 average 48%
Wyndham 39.0 +0.2 41.6 9th 25.1 -0.7 19.4 18th 0 22.2 lowest 0%
Wyndham Aero 40.1 +0.8 43.0 30th 24.1 -0.7 17.4 18th 0.2 18.8 low 1%
East Kimberley (district 02)
Argyle Aerodrome 39.5 +1.2 43.2 31st 25.4 +0.3 20.9 18th 0 33.6 lowest 0%
Halls Creek Airport 39.0 +1.9 41.5 30th 22.7 0.0 17.9 18th 3.0 17.4 average 17%
Kununurra Aero 39.9 +1.3 43.2 30th 21.7 -1.8 13.9 18th 0 23.0 lowest 0%
Warmun 39.9 +1.3 42.5 31st 21.8 -1.2 10.4 17th 0 23.3 lowest 0%
West Kimberley (district 03)
Bidyadanga 35.9 +1.6 45.2 9th 23.0 +2.0 19.9 20th 0 1.1 lowest 0%
Broome Airport 33.4 +0.5 40.7 8th 23.9 +1.5 20.9 8th 0 1.5 lowest 0%
Curtin Aero 39.9 +1.0 43.4 7th 21.8 +0.1 18.0 18th 2.8 5.2 average 54%
Derby Aero 37.5 +0.4 44.1 7th 24.1 +1.0 21.2 19th 0.2 2.6 average 8%
Fitzroy Crossing Aero 41.3 +1.4 43.5 31st 24.5 +1.6 19.9 17th 0 16.5 v low 0%
De Grey (district 04)
Bedout Island 31.8   36.5 10th 24.3   22.7 14th
Karratha Aero 35.2 +1.3 41.5 9th 21.4 +0.8 17.9 6th 0 0.5 lowest 0%
Legendre Island 31.1   36.3 10th 23.1   20.8 5th
Mandora 38.6 +2.7 44.5 9th 20.4 +1.4 16.8 7th 0 1.1 lowest 0%
Marble Bar 41.0 +2.6 43.8 27th 23.2 +1.8 18.6 7th 0 3.6 v low 0%
Pardoo Station 38.7 +3.0 43.2 22nd 20.5 +0.9 17.2 8th 0 0.8 lowest 0%
Port Hedland Airport 38.5 +3.6 43.2 30th 20.2 +1.8 16.5 6th 0.2 0.9 average 22%
Roebourne 39.6 +3.9 44.1 25th 20.7 +1.0 16.4 7th 0 0.8 lowest 0%
Roebourne Aero 39.3 +2.2 43.5 27th 20.8 +1.2 16.0 7th 0 1.5 v low 0%
Fortescue (district 05)
Barrow Island Airport 29.0 -0.4 34.4 10th 21.7 0.0 18.3 8th 0 2.3 v low 0%
Learmonth Airport 33.4 +0.7 39.3 10th 16.4 0.0 13.3 7th 0 1.6 lowest 0%
Mardie 35.4 +0.5 41.5 9th 19.0 +1.6 14.0 7th 0 0.9 lowest 0%
Onslow Airport 33.6 +0.8 41.0 10th 19.1 +1.3 16.2 7th 0.2 0.9 average 22%
Wittenoom 38.7 +3.4 41.4 29th 23.7 +3.0 16.8 14th 2.0 3.9 average 51%
West Gascoyne (district 06)
Carnarvon Airport 26.6 +0.6 31.8 14th 17.6 +1.2 13.1 7th 1.2 5.2 average 23%
Denham 26.5 +0.9 30.9 14th 17.8 +1.2 13.9 7th 5.2 6.1 average 85%
Emu Creek Station 35.1 +0.7 40.5 28th 16.9 0.0 13.1 8th 0.1 2.2 average 5%
Murchison 32.2 +1.5 39.5 28th 14.8 +1.6 7.5 7th 0.7 5.0 average 14%
Shark Bay Airport 28.1 -0.2 35.6 14th 16.2 +1.0 12.6 7th 5.0 5.0 average 100%
East Gascoyne (district 07)
Newman Aero 37.4 +2.4 41.0 29th 19.8 +2.2 13.6 7th 6.8 5.6 high 121%
Paraburdoo Aero 37.6 +1.8 41.5 28th 18.6 +0.4 12.8 20th 0.2 4.2 average 5%
Murchison (district 07A)
Meekatharra Airport 32.6 +2.9 38.0 29th 17.4 +2.2 10.3 6th 12.0 6.3 high 190%
Mount Magnet Aero 31.8 +2.5 39.0 15th 16.0 +1.7 8.9 7th 8.0 6.7 high 119%
Paynes Find 30.7 +3.1 39.7 15th 13.8 +2.4 5.7 7th 7.7 10.8 average 71%
North Coast (district 08)
Dalwallinu 28.4 +2.2 38.6 15th 11.2 +1.6 5.4 7th 8.0 14.0 average 57%
Geraldton Airport 26.1   35.6 15th 12.2   5.2 7th 4.0
Kalbarri 26.9 +0.6 33.5 14th 14.3 +1.8 9.5 7th 2.3 14.5 low 16%
Morawa Airport 29.4 +1.3 40.1 15th 12.6 +1.7 7.5 7th 12.6 9.4 average 134%
Mullewa 29.3 +2.1 38.8 15th 13.5 +2.4 8.7 7th 12.1 13.1 average 92%
North Island 24.6 +1.2 27.5 1st 18.4 +1.3 13.6 19th 0.6 7.4 low 8%
Wongan Hills 27.7 +2.6 38.2 15th 11.2 +1.2 5.4 7th 9.5 19.8 low 48%
Central Coast (district 09)
Bickley 22.1 +1.0 32.9 15th 10.8 +1.2 6.3 13th 37.8 65.6 low 58%
Garden Island HSF 21.6 +0.7 30.4 22nd 14.5 +1.0 9.9 7th 24.8 29.9 low 83%
Gingin Aero 25.3 +1.1 36.0 15th 9.8 +0.7 3.5 7th 31.0 36.2 average 86%
Gosnells City 25.5 +1.5 37.2 15th 12.9 +1.2 6.5 7th 39.4 46.0 average 86%
Jandakot Aero 24.6 +1.9 36.6 15th 10.8 +1.2 4.3 7th 29.4 46.0 low 64%
Jurien Bay 23.9 +0.5 31.0 1st 13.5 +2.3 6.0 7th 8.9 26.6 low 33%
Karnet 21.9 +1.1 32.8 15th 10.4 +1.4 3.5 7th 63.0 76.4 average 82%
Lancelin 24.5 +2.0 31.0 1st 13.4 +1.5 8.0 7th
Medina Research Centre 24.4 +1.7 34.8 15th         41.3 40.1 average 103%
Pearce RAAF 25.2 +1.8 34.5 15th 10.5 +0.4 4.6 7th 16.4 36.1 low 45%
Perth Airport 24.9 +2.3 35.8 15th 11.4 +1.2 5.1 7th 33.2 44.0 average 75%
Perth Metro 24.5 +1.3 35.4 15th 12.5 +1.1 5.8 7th 37.0 51.9 average 71%
Rottnest Island 21.8 +1.4 27.5 15th 15.2 +1.3 11.6 5th 15.6 37.4 low 42%
Swanbourne 23.9 +1.7 32.6 15th 13.5 +1.3 8.2 7th 70.4 43.5 high 162%
South Coast (district 09A)
Albany 19.2 +0.7 23.1 2nd 12.8 +2.4 9.0 7th 118.3 79.0 high 150%
Albany Airport 20.5   27.3 2nd 10.1   5.5 14th 99.6
Bridgetown 21.6 +1.3 27.2 28th 7.6 +0.7 1.8 13th 21.0 41.4 low 51%
Bunbury 22.5 +1.5 30.5 22nd 10.2 +0.8 3.3 6th 28.4 31.2 average 91%
Busselton Aero 22.4 +1.2 30.4 15th 9.8 +1.3 3.6 21st 14.8 30.6 low 48%
Cape Leeuwin 19.8 +1.6 24.5 1st 14.4 +1.8 9.4 13th 16.8 64.6 v low 26%
Cape Naturaliste 21.2 +2.4 29.0 15th 12.4 +1.4 9.3 27th 11.8 49.5 v low 24%
Collie East 22.4 +0.8 30.3 15th 8.7 +1.4 2.0 7th 35.4 39.9 average 89%
Donnybrook 23.1 +2.0 30.3 22nd 10.6 +2.3 4.8 6th 21.0 63.1 v low 33%
Dwellingup 22.0 +2.0 32.0 15th 9.7 +1.7 2.5 7th 53.8 79.3 average 68%
Esperance 22.8 +1.7 38.9 16th 12.3 +1.5 7.3 7th 78.2 47.2 v high 166%
Esperance Aero 24.2 +3.0 38.9 16th 10.9 +1.2 4.8 7th 79.6 47.5 v high 168%
Hopetoun North 20.8 -0.6 36.1 16th 10.9 +0.8 0.5 14th 71.8 40.3 v high 178%
Jarrahwood 22.5 +1.8 29.0 15th 8.4 +1.0 2.5 10th 17.2 56.1 v low 31%
Mandurah 23.3 +1.6 33.0 15th 14.1 +0.8 8.4 7th
Manjimup 21.3 +2.5 28.1 22nd 9.5 +1.2 4.5 13th 40.8 75.4 low 54%
North Walpole 19.7 +0.9 27.4 2nd 11.4 +1.1 6.9 13th 77.8 75.7 average 103%
Pemberton 20.8 +2.0 27.7 2nd         66.6 89.2 average 75%
Rocky Gully 20.2 +1.1 27.5 2nd 9.1 +1.2 3.4 13th 80.0 55.2 high 145%
Shannon 19.4 +0.8 25.9 2nd 9.7 +1.6 4.4 13th 43.8 75.7 low 58%
Windy Harbour 20.0 +1.2 28.1 22nd 12.0 +1.7 4.5 13th 47.8 68.6 average 70%
Witchcliffe 20.3 +0.8 28.4 22nd 10.7 +1.6 5.8 21st 35.2 61.1 low 58%
North Central (district 10)
Bencubbin 28.1 +3.0 37.8 15th 12.6 +2.8 5.5 7th 12.6 15.6 average 81%
Cunderdin Airfield 28.0 +2.2 38.4 15th 9.4 +1.4 0.7 7th 47.2 18.5 v high 255%
Kellerberrin 27.7 +3.0 35.5 16th 9.4 +0.6 0.5 7th 32.4 18.4 high 176%
Merredin 28.4 +3.5 36.7 15th 12.7 +3.1 4.8 7th 54.5 18.5 v high 295%
Northam 26.7 +2.6 37.0 15th 10.5 +1.6 2.9 7th 50.8 24.8 v high 205%
York 27.0 +2.3 37.0 15th 8.4 +1.2 2.0 7th 32.6 23.2 average 141%
South Central (district 10A)
Beverley 26.9 +2.5 36.8 15th 9.5 +1.6 2.6 7th 17.2 23.5 average 73%
Brookton 25.9 +2.6 35.7 15th 9.9 +2.5 2.7 7th 18.4 25.4 average 72%
Corrigin 26.0 +2.9 35.7 16th 10.4 +2.2 2.1 7th 68.0 21.6 v high 315%
Hyden 27.6 +2.9 36.9 16th 10.2 +2.0 3.7 7th 40.0 21.8 high 183%
Jacup 23.9 +2.3 34.4 16th 9.1 +1.5 3.2 13th 71.8 41.9 high 171%
Katanning 22.9 +1.2 30.4 16th 8.9 +1.6 2.6 13th 52.4 31.8 high 165%
Lake Grace 24.6 +1.4 34.0 16th 10.5 +1.6 4.2 7th 85.4 28.7 v high 298%
Narembeen 27.8 +2.8 36.5 15th 11.3 +2.3 4.0 7th 31.6 19.3 high 164%
Narrogin 23.8 +2.7 32.6 15th 9.8 +2.4 3.2 7th 20.4 31.1 average 66%
Newdegate Research Station 25.1 +1.9 34.1 16th 8.1 +1.2 -0.3 7th 53.2 23.9 v high 223%
Ongerup 23.3 +2.2 31.5 2nd 9.9 +1.7 4.2 13th 55.4 33.5 high 165%
Pingelly 24.8 +2.5 34.0 15th 10.1 +1.7 4.2 7th 20.4 24.9 average 82%
Ravensthorpe 24.3 +1.9 35.5 16th 10.8 +1.8 6.0 7th 115.7 38.5 v high 301%
Wagin 24.0 +2.2 32.4 15th 9.7 +1.9 3.0 7th 32.7 29.1 average 112%
Wandering 23.9 +1.8 32.2 15th 7.5 +1.3 1.2 7th 26.8 27.4 average 98%
Eucla (district 11)
Balladonia 28.1 +3.0 38.0 16th 11.2 +2.4 3.0 7th 31.0 23.0 high 135%
Eucla 26.2 +3.0 39.3 17th 12.7 +1.4 6.3 7th 16.0 18.3 average 87%
Eyre 26.8 +3.7 37.5 23rd 11.4 +1.3 -3.0 14th 7.5 19.5 low 38%
Forrest 30.5 +3.4 39.9 25th 12.0 +1.5 4.6 14th 3.2 9.5 low 34%
Red Rocks Point 24.3 +1.7 38.4 17th 13.5 +1.5 7.1 7th 7.2 18.0 low 40%
South East (district 12)
Bulga Downs 32.3 +2.1 39.1 15th 15.2 +1.3 7.3 7th 7.8 8.4 high 93%
Kalgoorlie-Boulder Airport 29.4 +3.6 38.1 16th 14.5 +3.4 8.2 13th 30.8 15.4 high 200%
Laverton Aero 31.3 +3.0 39.2 25th 16.9 +2.8 10.0 13th 50.6 14.9 highest 340%
Leinster Aero 32.2 +2.6 38.4 15th 16.8 +2.0 10.9 20th 34.0 13.3 high 256%
Leonora Aero 31.7   38.1 15th 17.0   11.0 6th 21.4
Munglinup West 24.7 +1.5 38.8 16th 10.3 +1.0 3.1 13th 69.6 43.2 high 161%
Norseman Aero 27.9 +2.3 38.8 16th 11.7 +2.4 4.7 13th 76.0 22.6 v high 336%
Salmon Gums Res.Stn. 26.9 +3.5 38.9 16th 9.4 +1.8 -1.4 13th 66.6 27.8 v high 240%
Southern Cross Airfield 29.0 +2.7 37.7 29th 12.1 +2.9 4.2 7th 32.0 15.4 high 208%
Yeelirrie 32.9 +2.9 38.6 15th 14.6 +2.0 4.9 7th 32.5 9.7 v high 335%
North East (district 13)
Balgo Hills 39.7 +2.6 42.7 31st 22.4 +0.1 17.0 17th 0.2 11.4 low 2%
Carnegie 36.2 +3.4 41.1 25th 19.2 +2.9 9.8 6th 6.2 5.5 high 113%
Giles Meteorological Office 35.6 +3.9 39.9 26th 20.5 +3.4 12.5 11th 0 15.2 lowest 0%
Telfer Aero 40.0 +2.9 42.7 27th 23.8 +2.9 19.9 12th 3.8 2.9 high 131%
Warburton Airfield 36.1 +4.4 42.0 25th 19.9 +4.4 12.6 12th 2.6 14.4 average 18%
Offshore Islands (district 200)
Adele Island 29.6   30.7 16th 25.9   25.0 9th
Browse Island 30.0   31.5 12th 26.8   25.8 1st
Christmas Island Aero 27.0 +0.1 27.7 27th 23.1 +0.4 22.3 6th 5.4 63.9 low 8%
Cocos Island Airport 28.7 0.0 29.4 28th 25.0 +0.8 22.9 18th 47.0 83.2 average 56%

Notes

A Monthly 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.

A Climate Summary is generally published on the first working day of each month.

This statement has been prepared based on information available at 9 am on Monday 3 November 2014. 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.

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.

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