Western Australia in 2014: Warmest year on record

Western Australia recorded its warmest year on record in 2014, in terms of the mean maximum temperature, and saw its ninth-warmest year on record in terms of the mean minimum temperature. The State as a whole recorded above average rainfall in 2014, however below average rainfall was reported for the Southwest Land Division (SWLD).

  • State-wide mean maximum temperature highest on record; highest on record for southwest WA
  • State-wide mean minimum temperature tenth-highest on record; fourth-highest on record for southwest WA
  • WA monthly mean maximum temperatures consistently above average from March to December
  • WA monthly mean minimum temperatures only below average in February, June, and July
  • State-wide rainfall above average
  • Below-average rainfall for the SWLD

Western Australia's statewide average maximum temperature was 1.17 °C above the historical mean in 2014, the highest since comparable records commenced in 1910 exceeding the record of 1.11 °C set in 2013. The year started with near-average temperatures for WA in January and February, but then saw the eighth-warmest autumn on record, the third-warmest winter, the warmest spring on record, and an above average December. Almost all of the State recorded above average mean annual maximum temperatures in 2014, and sites in the Pilbara, Gascoyne, Central Wheat Belt, Great Southern, and Southeast Coastal registered their warmest or equal-warmest year on record. In the Lower Southwest (southwest of a line from Jurien Bay to Bremer Bay), the mean annual maximum temperature was 1.28 °C above the historical mean, the highest annual mean maximum temperature on record, exceeding the previous highest with an anomaly of 1.27 °C in 2010. The monthly mean maximum temperature for the Lower Southwest was above the average for all months in 2014.

The annual mean minimum temperature averaged across the State was the tenth-highest on record (+0.52 °C anomaly), whilst the Lower Southwest recorded its fourth-warmest year on record in terms of overnight temperatures. Most of WA saw above to very much above average mean minimum temperatures in 2014, with a few sites in the eastern Central Wheat Belt and Goldfields recording their warmest or equal warmest year on record. In contrast, much of the Kimberley, the eastern Northern Interior, and far northeast Southern Interior recorded near average or below average mean minima for 2014.

The statewide average rainfall for 2014 was 406 mm, 19% above the historical average. Rainfall was generally above average across northern, central, and eastern WA in 2014, and Rawlinna Depot in the Eucla registered its wettest year in 44 years of record. However, western parts of the State generally recorded below average rainfall in 2014 and some sites near the west coast, as well as sites near the southern SWLD coast, recorded rainfall totals in their lowest 10% of records, whilst some saw their driest year for at least 20 years. The SWLD as a whole recorded below average rainfall in 2014. In most months during the year, rainfall was near average to above average for the State as a whole, however March, June, and August received below average rainfall through much of WA, and winter rainfall for the State was tenth-lowest on record.

Intense tropical lows moved through WA in January and February 2014 bringing significant rainfall to large parts of the State, whilst two tropical cyclones (Gillian in March and Jack in April) developed in the Indian Ocean well west of WA. No tropical cyclones impacted the WA coastline in the 2014 calendar year, the first year this has occurred since 1951.

Notable events in 2014

  • Ex-Tropical cyclone Christine brought damaging winds and moderate to heavy rainfall to central and southeastern WA on 1 and 2 January.
  • Very high temperatures impacted western parts of the State between 10 and 12 January with a number of sites in the SWLD experiencing their hottest January days and nights on record. A bushfire was reported in Parkerville, about 30km east of Perth on the 12th, destroying 57 houses in the townships of Parkerville, Stoneville, and Mount Helena, and one fatality was attributed to the event.
  • An intense tropical low and associated cloudband produced widespread showers, thunderstorms, and heavy rain over northern, central, and southeastern WA between 16 and 23 January, and several sites in the Gascoyne, Goldfields, and Eucla broke their highest daily rainfall record during this event.
  • A slow moving tropical low tracked through northern, central, and southeast WA from 7 to 14 February, causing widespread heavy rainfall, including a two-day total (7th and 8th) of 553 mm at Micromave Tower, an unofficial observing site near Kununurra. A number of sites in the Kimberley, Southern Interior, and Eucla registered their highest daily rainfall in February on record during the event, and Kununurra Aerodrome (163.8 mm) and Cygnet Bay (269.4 mm), both in the Kimberley, recorded their highest daily falls for any month.
  • Locations near the west coast of WA experienced a very long dry spell which ran from mid-spring or early summer 2013 to early or mid-autumn 2014. A record 105 consecutive rainless days was reported at Mandurah in the Lower West, whilst Kalbarri in the Central West had a record dry spell of 186 days from 21 October 2013 to 24 April 2014 with a total rainfall of only 0.8 mm during that period on two rain days.
  • Troughton Island in the north Kimberley broke both its minimum and maximum temperature records for June on the 1st. The minimum temperature of 27.3 °C was the highest minimum temperature on record for June in Australia, exceeding the previous record of 27.2 °C at Cockatoo Island (northeast of the Dampier Peninsula in the Kimberley) on 1 June 1971.
  • Two cold fronts produced widespread showers, isolated thunderstorms, and squally winds in southern WA from 6 to 8 July, with a maximum wind gust of 124 km/h at Cape Naturaliste, the highest wind gust recorded in WA in 2014. About 26,000 homes in the Lower West and South West lost power during the event; a tornado was sighted near Balingup, a Bunbury hotel roof was damaged.
  • A deep middle level trough combined with a surface trough to produce extremely heavy rainfall on the Dampier Peninsula in the Kimberley on 12 and 13 July. A daily rainfall of 215.0 mm at Cape Leveque on the 13th was WA's wettest July day on record, and a two-day rainfall total of 242.0 mm at Cygnet Bay was more than double its previous highest July monthly rainfall total.
  • A strong cold front moved across southwest WA on 14 July and produced heavy showers, thunderstorms, and squally winds causing power outages and significant damage to property. Three tornadoes were reported in the western suburbs of Perth, and two men died tragically when their respirators failed as a result of a power outage. Tornadoes were also reported in Yallingup and Geraldton.
  • A strong cold front and associated cut-off low moved across southwest WA on 17 and 18 August, producing thunderstorms, moderate to heavy rainfall and squally winds. In Fremantle port, a container ship broke its moorings during the storm and crashed into the Fremantle rail bridge. A second cargo vessel also broke its moorings and hit a refuelling vessel near the bridge.
  • Carnarvon Airport experienced an extraordinarily warm winter in 2014 exceeding the previous winter mean maximum temperature by over 1 °C. The Airport registered its warmest June day on record on 5 June, then broke its previous highest August temperature four times on 12, 13, 25 and 28 August. The mean maximum temperature of 28.2 °C for August at Carnarvon Airport was 2.8 °C higher than its previous August monthly record, and also exceeded the September record, whilst August 2014 was warmer than any of the spring months in 2014. Also of note, Carnarvon Airport recorded a maximum temperature above 30 °C in every month of the year for the first time in its 68 year recording history.
  • Bidyadanga recorded a maximum temperature of 45.2 °C on 9 October, the earliest day in spring with a temperature over 45 °C on record in Australia .
  • A low pressure system brought widespread thunderstorms and heavy rainfall across central and southern WA between 18 and 20 October. Many sites in the SWLD, as well as Laverton Aerodrome in the Goldfields, recorded their wettest October day on record, whilst a couple of sites in the South Coastal and Great Southern recorded their highest daily fall for any month.
  • High minimum temperatures were reported in the west Kimberley in the second half of November and Broome Airport had three nights that exceeded the previous record high minimum temperature for November in 76 years of record.

Further information

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Extremes in 2014
Hottest day 49.2 °C at Emu Creek Station on 10 Jan
Warmest days on average 36.6 °C at Fitzroy Crossing Aero
Coolest days on average 20.3 °C at Albany
Coldest day 9.8 °C at Hopetoun North on 22 Jun
Coldest night -5.0 °C at Eyre on 11 Aug
Coolest nights on average 9.0 °C at Bridgetown
9.0 °C at Collie East
9.0 °C at Jarrahwood
9.0 °C at Newdegate Research Station
Warmest nights on average 26.7 °C at Browse Island
22.8 °C at Truscott
Warmest night 32.8 °C at Wittenoom on 6 Dec
Warmest on average overall 29.0 °C at Wyndham
29.0 °C at Wyndham Aero
Coolest on average overall 15.6 °C at Rocky Gully
Wettest overall 1497.8 mm at Theda
Driest overall 89.6 mm at Dalgety Downs Airstrip
Wettest day 269.4 mm at Cygnet Bay on 10 Feb
Strongest wind gust 124 km/h at Cape Naturaliste on 7 Jul

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


Monthly maps
Rainfall rankMaximum temperature rankMinimum temperature rank
January Map of Rainfall deciles Map of Decile rank of mean maximum temperature Map of Decile rank of mean minimum temperature
February Map of Rainfall deciles Map of Decile rank of mean maximum temperature Map of Decile rank of mean minimum temperature
March Map of Rainfall deciles Map of Decile rank of mean maximum temperature Map of Decile rank of mean minimum temperature
April Map of Rainfall deciles Map of Decile rank of mean maximum temperature Map of Decile rank of mean minimum temperature
May Map of Rainfall deciles Map of Decile rank of mean maximum temperature Map of Decile rank of mean minimum temperature
June Map of Rainfall deciles Map of Decile rank of mean maximum temperature Map of Decile rank of mean minimum temperature
July Map of Rainfall deciles Map of Decile rank of mean maximum temperature Map of Decile rank of mean minimum temperature
August Map of Rainfall deciles Map of Decile rank of mean maximum temperature Map of Decile rank of mean minimum temperature
September Map of Rainfall deciles Map of Decile rank of mean maximum temperature Map of Decile rank of mean minimum temperature
October Map of Rainfall deciles Map of Decile rank of mean maximum temperature Map of Decile rank of mean minimum temperature
November Map of Rainfall deciles Map of Decile rank of mean maximum temperature Map of Decile rank of mean minimum temperature
December Map of Rainfall deciles Map of Decile rank of mean maximum 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 daily rainfall
New record
(mm)
Old
record
Years of
record
Leonora 109.2 on 23 Jan 105.9 on 27 Feb 1995 116
Edjudina 127.0 on 23 Jan 98.0 on 27 Feb 1995 114
Kukerin 120.0 on 20 Oct 94.0 on 9 Mar 1934 103
Doolgunna 151.0 on 22 Jan 126.4 on 20 May 1984 86
Cygnet Bay 269.4 on 10 Feb 268.0 on 5 Mar 1972 52
Arubiddy 84.8 on 24 Jan 77.0 on 14 Mar 1996 51
Cowarna Downs 121.2 on 23 Jan 113.4 on 16 Oct 1979 47
Barvesk 89.0 on 15 Nov 65.6 on 22 Jan 1987 45
Kununurra Aero 163.8 on 8 Feb 162.2 on 2 Jan 2005 43
Bundilla 78.0 on 20 Oct 76.0 on 21 Mar 1982 35
Tarmoola 80.0 on 23 Jan 76.0 on 19 Jul 1980 31



Record highest annual total rainfall
New record
(mm)
Old
record
Years of
record
Annual
average
Rawlinna Depot 545.3 522.8 in 1992 44 250.1



Lowest annual total rainfall for at least 20 years
Observed
(mm)
Most recent
lower
Years since
lower
Annual
average
Denmark 766.7 763.0 in 1940* 68 1090.6
Grassmere 672.2 632.8 in 1940* 67 999.4
Albany 646.4 628.5 in 1972* 41 929.5
Bindi Bindi East 234.8 204.0 in 1994 20 375.4

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




Record highest temperature
New record
(°C)
Old
record
Years of
record
Annual
average
Kellerberrin 47.5 on 12 Jan = 47.5 on 3 Feb 2007 103 25.2
Wagin 44.0 on 12 Jan 43.7 on 26 Dec 2007 44 23.0
Pardoo Station 48.0 on 6 Dec 46.7 on 22 Oct 2002 22 33.6
Swanbourne 44.3 on 11 Jan 43.1 on 26 Jan 2012 22 24.1
Bunbury 40.8 on 11 Jan 40.6 on 17 Jan 2010 20 23.1



Record highest annual mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Annual
average
Roebourne 35.8 = 35.8 in 2002 90 34.0
Narrogin 23.8 23.7 in 2013 83 22.4
Port Hedland Airport 34.8 34.6 in 1994 65 33.2
Salmon Gums Res.Stn. 24.9 24.7 in 2010 63 23.4
Corrigin 25.3 25.1 in 2010 62 23.8
Meekatharra Airport 30.6 = 30.6 in 1994 62 29.0
Merredin 26.7 26.5 in 2013 48 25.0
Esperance 22.7 = 22.7 in 2012 44 21.9
Mandora 35.2 = 35.2 in 1994 44 34.1
Beverley 26.6 = 26.6 in 2010 41 25.4
Murchison 31.5 31.4 in 2013 22 30.3
Esperance Aero 23.6 23.2 in 2013 21 22.1
Karratha Aero 33.1 = 33.1 in 2002 20 32.4
Pardoo Station 34.8 34.5 in 2009 20 33.6

Highest annual mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Years since
higher
Annual
average
Brookton 25.2 25.4 in 1977* 36 24.3
Broome Airport 33.1 33.3 in 1988 26 32.2

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




Record highest daily minimum temperature
New record
(°C)
Old
record
Years of
record
Annual
average
Pearce RAAF 31.2 on 12 Jan 30.6 on 31 Jan 1984 65 12.2
Wongan Hills 30.5 on 12 Jan 29.4 on 26 Jan 1968 48 11.9
Christmas Island Aero 26.3 on 10 May 26.2 on 7 May 1998 43 22.8
Perth Metro 29.7 on 12 Jan 29.3 on 8 Feb 1933 & 3 Feb 1962 117 12.8



Record lowest temperature
New record
(°C)
Old
record
Years of
record
Annual
average
Kununurra Aero 6.3 on 17 Aug 6.4 on 27 Jul 2013 29 21.2



Record highest annual mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Annual
average
Kalgoorlie-Boulder Airport 12.7 = 12.7 in 2013 71 11.7
Bencubbin 12.9 12.8 in 2013 55 11.6
Merredin 12.6 12.4 in 2011 48 11.4



Record highest annual mean temperature
New record
(°C)
Old
record
Years of
record
Annual
average
Narrogin 17.2 17.1 in 2013 80 15.9
Salmon Gums Res.Stn. 17.3 17.2 in 1991 63 16.3
Corrigin 18.2 18.0 in 2013 62 16.9
Meekatharra Airport 23.6 = 23.6 in 1991 62 22.4
Mullewa 22.1 22.0 in 2013 62 20.6
Bencubbin 19.7 19.6 in 1994 54 18.5
Merredin 19.6 19.3 in 1972 48 18.2
Brookton 17.9 = 17.9 in 2011 45 17.0
Onslow Airport 26.6 = 26.6 in 2013 45 25.5
Esperance 17.8 17.7 in 2013 44 17.0
Ongerup 16.6 = 16.6 in 2013 43 15.8
Wongan Hills 19.7 19.6 in 2013 43 18.8
Beverley 18.8 = 18.8 in 2013 41 17.8
Narembeen 19.0 18.9 in 2013 34 18.0
Esperance Aero 17.6 17.5 in 2013 21 16.7



Summary statistics for 2014
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean
for
2014
Diff
from
average
Highest
for
2014
Mean
for
2014
Diff
from
average
Lowest
for
2014
Total
for
2014
Average
annual
total
Rank
of
2014
Fraction
of annual
average
North Kimberley (district 01)
Doongan 33.1 +0.1 40.4 10 Oct 18.1 -0.3 2.6 17 Aug 1121.8 1155.2 average 97%
Kalumburu 34.2 0.0 40.2 14 Oct 20.5 +0.2 7.4 17 Aug 1060.6 1204.4 low 88%
Troughton Island 31.3 +0.3 35.6 18 Nov 25.6 +0.2 19.9 17 Aug 709.4 832.2 average 85%
Truscott 32.5   37.3 4 Nov 22.8   12.4 29 Aug 1159.0 1158.1 average 100%
Wyndham 35.5 -0.1 42.1 4 Nov 22.6 -0.5 10.9 17 Jun 1031.1 827.5 high 125%
Wyndham Aero 36.1 +0.3 43.3 15 Dec 21.9 -0.3 7.4 17 Aug 1005.2 847.0 high 119%
East Kimberley (district 02)
Argyle Aerodrome 34.8 +0.2 43.2 31 Oct 22.4 +0.3 9.8 16 Aug 983.4 769.8 high 128%
Halls Creek Airport 33.5 -0.1 42.2 4 Dec 19.8 -0.2 7.0 11 Jun 807.8 570.3 high 142%
Kununurra Aero 35.3 +0.4 44.2 15 Dec 20.5 -0.7 6.3 17 Aug 1253.2 839.2 v high 149%
Warmun 34.9 -0.1 42.5 31 Oct 19.9 -0.4 5.1 3 Jul 1071.3 725.8 high 148%
West Kimberley (district 03)
Bidyadanga 34.4 +1.1 45.2 9 Oct 21.5 +0.7 8.5 3 Jul 431.2 515.6 average 84%
Broome Airport 33.1 +0.9 41.0 26 Nov 21.5 +0.3 7.5 2 Jul 710.6 613.5 high 116%
Curtin Aero 35.7 +0.2 43.4 7 Oct 20.9 -0.1 9.4 19 Aug 892.2 861.3 average 104%
Derby Aero 35.3 +0.8 44.1 7 Oct 21.6 +0.1 6.6 3 Jul 661.6 696.1 average 95%
Fitzroy Crossing Aero 36.6 +0.6 45.6 5 Dec 20.8 +0.7 6.6 16 Aug 494.8 707.0 v low 70%
De Grey (district 04)
Bedout Island 30.9   38.0 29 Dec 24.4   15.6 18 Jul
Karratha Aero 33.1 +0.7 43.2 14 Jan 20.7 -0.1 8.4 26 Jul 221.0 301.5 average 73%
Mandora 35.2 +1.1 44.9 5 Jan 19.7 +0.3 4.5 19 Aug 261.8 376.9 low 69%
Marble Bar 36.1 +0.7 47.9 8 Dec 19.9 -0.4 6.1 11 Jul 441.8 386.9 average 114%
Pardoo Station 34.8 +1.2 48.0 6 Dec     5.0 15 Aug 425.7 316.8 high 134%
Port Hedland Airport 34.8 +1.6 47.7 6 Dec 20.2 +0.8 7.0 7 Jul
Roebourne 35.8 +1.8 47.7 7 Dec 20.4 -0.1 7.9 11 Jul 187.9 314.6 low 60%
Roebourne Aero 35.6 +0.9 46.9 6 Dec 19.4 -0.4 5.0 7 Jul
Fortescue (district 05)
Barrow Island Airport 29.7 +0.5 40.8 9 Jan 22.2 0.0 13.2 26 Jul
Learmonth Airport 32.4 +0.5 48.1 9 Jan 17.7 0.0 4.6 25 Jul 458.6 256.1 v high 179%
Mardie 34.4 +0.5 47.8 14 Jan 19.7 +0.9 6.8 26 Jul 129.9 277.3 low 47%
Onslow Airport 33.0 +1.1 48.7 8 Jan 20.1 +1.1 9.3 14 Jul 104.8 315.3 low 33%
Wittenoom 34.2 +1.3 46.0 7 Dec 20.1 +0.4 6.0 25 Jul 394.8 464.5 average 85%
West Gascoyne (district 06)
Carnarvon Airport 28.9 +1.6 44.5 5 Feb 17.7 +0.5 5.2 15 Jun 91.4 226.3 v low 40%
Denham 27.6 +0.8 42.5 24 Mar 18.6 +0.8 9.5 24 Jun
Emu Creek Station 34.7 +0.9 49.2 10 Jan 18.3 0.0 5.6 26 Jul 355.3 300.4 high 118%
Murchison 31.5 +1.2 47.0 11 Jan 15.8 +1.5 1.5 13 Jul 117.6 230.9 v low 51%
Shark Bay Airport 29.7 +0.7 45.3 18 Jan 16.9 +0.5 5.1 16 Jun 158.6 202.3 average 78%
East Gascoyne (district 07)
Newman Aero 32.8 +0.9 44.8 13 Dec 16.9 +0.7 1.1 29 Jun 363.0 326.8 average 111%
Paraburdoo Aero 34.4 +1.0 46.0 9 Jan 18.5 +0.4 5.2 25 Jul 235.8 320.5 low 74%
Murchison (district 07A)
Meekatharra Airport 30.6 +1.6 43.9 12 Dec 16.5 +0.6 0.6 24 Jun 211.2 238.7 average 88%
Mount Magnet Aero 29.8 +1.3 45.4 12 Jan 15.9 +0.8 1.7 24 Jun 238.8 255.4 average 94%
North Coast (district 08)
Dalwallinu 27.1 +0.8 44.9 12 Jan 12.4 +0.7 1.7 23 Jun 243.4 290.7 low 84%
Geraldton Airport 27.2   45.8 11 Jan 13.9   2.4 28 Jun 335.4
Kalbarri 28.7 +1.0 44.4 19 Jan     3.9 19 Jul 286.9 346.1 low 83%
Morawa Airport 28.9 +0.7 46.9 11 Jan 13.6 +0.8 0.9 13 Jul 261.8 285.3 average 92%
Mullewa 29.4 +1.5 47.0 11 Jan 14.8 +1.6 3.2 14 Jul 279.5 332.8 average 84%
North Island 25.4 +0.6 37.6 1 Mar 19.1 +0.5 7.9 19 Jul 235.8 281.8 low 84%
Wongan Hills 26.8 +1.1 45.2 12 Jan 12.5 +0.6 1.4 15 Jun 288.0 387.2 low 74%
Central Coast (district 09)
Bickley 23.0 +0.4 40.7 11 Jan 11.8 +0.6 2.6 1 Aug 1036.6 1081.2 average 96%
Garden Island HSF 22.8 +0.1 41.4 11 Jan 15.6 +0.7 7.0 1 Aug 525.0 607.4 low 86%
Gingin Aero 26.0 +0.5 44.5 11 Jan 11.5 +0.5 -0.8 15 Jun 542.0 626.1 low 87%
Jandakot Aero 25.2 +0.7 43.2 11 Jan 12.1 +0.7 0.1 15 Jun 690.6 * 830.0 low 83%*
Karnet 23.0 +0.5 40.6 11 Jan 11.3 +0.7 0.8 28 Jun 1066.5 1168.1 average 91%
Lancelin 25.6 +1.4 43.5 11 Jan 14.2 +0.6 4.3 29 Jun
Pearce RAAF 26.4 +1.2 44.5 11 Jan 12.5 +0.3 1.2 29 Jun 533.8 652.4 low 82%
Perth Airport 25.7 +1.2 43.5 11 Jan 12.8 +0.7 1.0 14 Jun 620.8 770.1 low 81%
Perth Metro 25.4 +0.7 43.3 11 Jan 13.5 +0.7 1.9 14 Jun 674.4 733.3 low 92%
Rottnest Island 22.8 +0.6 36.3 1 Mar 16.3 +0.6 8.7 1 Aug 443.3* 691.7 low 64%*
Swanbourne 25.1 +1.0 44.3 11 Jan 14.4 +0.5 4.8 10 Jul 679.6 * 725.4 low 94%*
South Coast (district 09A)
Albany 20.3 +0.8 32.8 1 Mar 13.3 +1.6 4.5 4 Aug 646.4 929.5 v low 70%
Albany Airport 21.3   39.2 12 Jan 10.9   0.6 4 Aug 604.2
Bridgetown 22.7 +0.3 40.0 12 Jan 9.0 +0.4 -1.2 4 Aug 708.2 731.1 average 97%
Bunbury 24.0 +0.9 40.8 11 Jan 11.3 +0.2 0.1 28 Jun 729.6 733.7 average 99%
Busselton Aero 23.4 +0.3 40.2 11 Jan 10.5 +0.2 2.0 28 Jun 655.0 687.5 average 95%
Cape Leeuwin 20.7 +1.0 32.2 1 Mar 15.1 +1.0 7.4 1 Aug 680.4 965.1 v low 71%
Cape Naturaliste 22.2 +1.5 37.5 11 Jan 13.4 +0.7 6.2 1 Aug 619.2 807.0 low 77%
Collie East 23.6 +0.5 40.8 12 Jan 9.0 +0.6 -1.8 1 Aug 728.4 730.3 average 100%
Donnybrook 24.3 +1.2 40.2 11 Jan 11.3 +1.6 1.5 28 Jun 948.8 976.2 average 97%
Dwellingup 23.2 +1.4 41.0 11 Jan 10.5 +1.0 -0.8 28 Jun 1083.8 1240.2 low 87%
Esperance 22.7 +0.8 40.7 7 Jan 12.8 +0.7 3.3 4 Jul 558.0 618.8 average 90%
Esperance Aero 23.6 +1.5 42.0 12 Jan 11.7 +0.4 2.9 4 Jul 520.2 567.6 low 92%
Jarrahwood 23.7 +1.2 40.7 12 Jan 9.0 +0.4 -2.0 1 Aug 927.8 929.0 average 100%
Mandurah 23.9 +0.7 41.6 11 Jan 15.1 +0.3 5.3 1 Aug
Manjimup 21.7 +1.3 39.3 12 Jan 10.4 +0.7 1.5 1 Aug 736.2 997.5 v low 74%
North Walpole 20.7 +0.4 36.9 1 Mar 12.1 +0.4 3.6 1 Sep 886.2
Pemberton 21.5 +1.2 37.4 12 Jan     1.4 4 Aug 1134.0 1188.5 average 95%
Rocky Gully 21.3 +0.4 42.1 12 Jan 9.9 +0.3 0.8 1 Sep 757.6 700.1 average 108%
Witchcliffe 21.6 +0.2 37.0 12 Jan 11.3 +0.7 1.2 18 Jul
North Central (district 10)
Bencubbin 26.5 +1.1 45.0 12 Jan 12.9 +1.3 0.5 28 Jun 267.1 315.4 low 85%
Cunderdin Airfield 26.7 +0.8 47.1 12 Jan 11.2 +0.8 -0.8 28 Jun 360.2 299.8 high 120%
Merredin 26.7 +1.7 45.6 12 Jan 12.6 +1.2 -1.0 28 Jun 288.0 325.4 average 89%
Northam 26.3 +0.9 46.3 12 Jan 11.7 +0.8 -0.7 16 Jun 404.8 427.8 average 95%
York 26.3 +0.8 46.6 12 Jan 10.1 +0.6 -1.4 16 Jun 414.7 383.3 average 108%
South Central (district 10A)
Beverley 26.6 +1.2 46.4 12 Jan 10.9 +0.7 -1.4 28 Jun 353.9 417.9 low 85%
Brookton 25.2 +0.9 45.2 12 Jan 10.5 +0.8 -0.6 15 Jun 371.0 451.3 low 82%
Corrigin 25.3 +1.5 45.9 12 Jan 11.0 +1.0 -1.1 15 Jun 397.1 372.8 average 107%
Hyden 26.3 +1.2 46.0 12 Jan 10.6 +0.7 -2.5 15 Jun 334.4 340.0 average 98%
Jacup 23.1 +1.2 45.2 12 Jan 9.9 +0.6 0.6 1 Sep 502.8 461.1 average 109%
Katanning 23.0 +0.5 43.6 12 Jan 10.0 +0.5 1.3 29 Jun 439.4 454.8 average 97%
Lake Grace 24.1 +0.6 45.1 12 Jan 11.0 +0.7 0.3 3 Aug 409.2 335.0 high 122%
Narembeen 26.1 +0.9 45.3 12 Jan 11.7 +1.0 0.0 23 Jun
Narrogin 23.8 +1.4 43.7 12 Jan 10.5 +1.1 -0.9 28 Jun 429.4 493.8 low 87%
Newdegate Research Station 24.3 +0.9 45.9 12 Jan 9.0 +0.2 -1.9 6 Aug 398.2 370.2 average 108%
Ongerup 22.9 +1.1 44.5 12 Jan 10.3 +0.5 0.4 3 Aug 395.4 385.6 average 103%
Pingelly 24.5 +1.2 44.4 12 Jan 11.0 +0.6 0.0 28 Jun 404.8 445.9 low 91%
Ravensthorpe 23.6 +0.8 44.2 12 Jan 11.1 +0.6 2.9 2 Aug 527.0 426.9 high 123%
Wagin 23.9 +0.9 44.0 12 Jan 10.6 +0.9 -0.8 1 Aug 320.9 432.9 low 74%
Eucla (district 11)
Balladonia 25.7 +1.1 44.6 13 Jan 10.4 +0.6 -3.3 4 Jul 422.0 266.2 v high 159%
Eucla 24.0 +1.1 44.5 16 Jan 12.9 +0.7 3.2 17 Aug 421.0 273.2 v high 154%
Eyre 24.4 +1.5 43.5 6 Nov 10.8 0.0 -5.0 11 Aug 594.9 314.0 v high 189%
Forrest 27.1 +0.8 44.7 15 Jan 11.6 +0.6 -0.2 1 Jul 253.2 227.7 average 111%
Red Rocks Point 22.9   44.1 27 Jan 13.6   3.5 17 Aug 374.8 366.8 average 102%
South East (district 12)
Bulga Downs 29.3 +0.5 44.7 13 Jan 13.9 +0.3 -0.6 29 Jun 389.0 235.4 v high 165%
Kalgoorlie-Boulder Airport 26.1 +0.8 43.5 13 Jan 12.7 +1.0 -1.0 29 Jun 339.6 266.6 high 127%
Laverton Aero 28.4 +1.5 45.0 15 Jan 14.4 +0.5 0.0 25 Jul 312.0 292.0 average 107%
Leinster Aero 29.2 +1.1 44.2 15 Jan 15.2 +0.5 0.8 25 Jun 283.6 259.1 average 109%
Leonora Aero 28.5   45.3 15 Jan 14.6   -0.3 28 Jun 344.0
Munglinup West 24.0 +0.9 43.8 12 Jan 10.9 +0.3 1.7 4 Jul 405.6
Norseman Aero 25.4 +0.3 41.3 13 Jan 10.4 +0.5 -3.5 4 Jul 390.4 309.0 average 126%
Salmon Gums Res.Stn. 24.9 +1.5 42.1 12 Jan 9.7 +0.6 -4.3 4 Jul 369.2 354.6 average 104%
Southern Cross Airfield 26.5 +0.6 45.8 12 Jan 11.6 +1.3 -2.7 28 Jun 285.2 302.6 average 94%
North East (district 13)
Carnegie 31.5 +1.0 45.5 14 Jan 16.1 +0.9 0.2 17 Jun 337.2 236.6 high 143%
Giles Meteorological Office 30.4 +1.0 45.1 5 Dec 16.3 +0.4 -0.1 15 Aug 343.4 288.5 high 119%
Warburton Airfield 31.3 +1.5 45.4 9 Dec 16.4 +1.7 -1.2 16 Jul 208.2 245.6 average 85%
Offshore Islands (district 200)
Adele Island 30.0   34.2 27 Dec 25.8   19.0 13 Jul
Browse Island 30.0   34.1 19 Nov 26.7   21.6 13 Jul
Cocos Island Airport 29.5 +0.5 32.5 14 Feb 25.3 +0.7 22.2 25 Jun 2073.0 1984.9 average 104%

* note: there are missing data at this site.


Notes

The annual 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, 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 Tuesday 6 January 2015. 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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