Western Australia in summer 2013-14: very wet in the north, dry and warm in southwest

  • Rainfall: very much above average for WA; 9th driest summer for southwest WA
  • Maximum temperature: average for WA; equal 8th warmest for southwest WA
  • Minimum temperature: above average for WA;10th warmest for southwest WA

Rainfall

Rainfall during summer 2013-14 was above to very much above average in much of northern, central, and eastern WA, with areas of highest on record in the east Kimberley and Eucla. In contrast, the southwest Gascoyne and large parts of the Southwest Land Division (SWLD) saw below to very much below average summer rainfall, with some sites reporting no rainfall the season, and ranking as one of the driest summers on record for some locations near the west coast.

Averaged across WA as a whole, summer 2013-14 rainfall ranked 12th wettest on record, as a result of above average rainfall in December and February, and the fourth highest January on record. For the Lower Southwest (southwest of a line from Jurien Bay to Bremer Bay), however, summer 2013-14 was ranked ninth driest on record, as result of below average rainfall in December and February, and the eighth driest January on record.

Significant rainfall events in WA during summer 2013-14:

  • Troughs produced showers and thunderstorms with moderate rainfall in the Gascoyne, SWLD, Goldfields, Southern Interior, and Eucla during the first half of December.
  • A weak tropical low developed into tropical cyclone Christine and made landfall on the Pilbara coast between Whim Creek and Roebourne on 30 December. Numerous sites in the Kimberley and Pilbara recorded daily totals over 100 mm, and several sites in the Pilbara received their highest daily rainfall on record for December on the 31st. Ex-tropical cyclone Christine moved through the east Gascoyne, northern Goldfields, southern Southern Interior, and Eucla on the first two days of January bringing heavy rainfall. Wiluna in the northern Goldfields recorded 100.2 mm, its highest daily rainfall in January in 109 years of record, and its third highest daily fall for any month.
  • An intense tropical low moved over the east Kimberley on 16 January after moving through the Top End of the Northern Territory and moved southwest through the Northern Interior and east Pilbara, then south through the east Gascoyne before it weakened and dissipated in the Goldfields on the 23rd. The low and associated cloudband produced widespread showers, thunderstorms, and heavy rain over northern, central, and southeastern WA, and numerous sites broke their highest daily rainfall record for summer during this event.
  • A slow moving tropical low crossed the WA/NT border in the evening on 6 February, then moved southwest through the Kimberley, Northern Interior, and east Pilbara before tracking south-southeast through central and southeast WA, leaving the State on the 14th. Widespread showers and thunderstorms with moderate to heavy rainfall were observed in northern, central, and eastern WA, with daily rainfall totals over 100 mm common. A number of sites recorded their highest daily rainfall in February on record during the event, and Kununurra Aerodrome and Cygnet Bay recorded their highest summer daily falls on record. Microwave Tower (15 km east of Kununurra) recorded a daily rainfall of 308.8 mm on the 8th, which was the highest daily fall in summer 2013-14 in WA, and was the highest daily rainfall in WA for almost three years, since 351.0 mm was recorded on 14 March 2011 at Durack Range in the Kimberley.

Maximum temperature

Mean daily maximum temperatures during summer 2013-14 were above average in western parts of WA. Mean maximum temperatures were up to 3 °C above average in the west Gascoyne and northern Central West, and Kalbarri registered its warmest summer in 37 years of record. The east Kimberley, Northern Interior, east Pilbara, southern Goldfields, and western Eucla saw below to very much below average maximum temperatures, up to 3 °C cooler than normal in the east Kimberley.

Averaged across the state as a whole, the mean maximum temperature for WA in summer 2013-14 was near average due to an above average December, and a near average January and February. Averaged across the Lower Southwest (southwest of a line from Jurien Bay to Bremer Bay) however, the summer mean maximum temperature was the equal eighth warmest since records commenced in 1910 due to an above average December, the 11th warmest January, and an above average February. The Lower Southwest has recorded above average summers for each of the last five years, with summer 2009-2010 ranked warmest on record, and summer 2012-2013 ranked the second warmest.

Wet and cloudy conditions on 7 December resulted in cool days with maximum temperatures below 18 °C in the South Coastal district. A maximum of 17.1 °C at Pemberton on the 7th was the lowest maximum temperature of the season in WA.

High temperatures were recorded in the west Pilbara in the second week of January, then propagated south to western parts of WA between the 10th and 12th. Emu Creek Station (Pilbara) recorded a maximum of 49.2 °C on the 10th, which was the highest summer temperature in WA. Kellerberrin (Central Wheat Belt) recorded a maximum of 47.5 °C on 12 January, which equalled its highest temperature for any month in 104 years of record. On the same day, Wagin recorded a maximum of 44.0 °C, which was its first ever 44 °C day in 41 years of record, exceeding the previous record of 43.7 °C on 26 December 2007.

During the summer of 2013-14, both Mount Magnet Aerodrome (Gascoyne) and Forrest (Eucla) experienced seven days with temperatures at 44 °C or above, which is the highest number of such days on record for these sites. The previous record in 18 years of temperature recording at Mount Magnet Aerodrome was five days, whilst the previous record in 69 years of temperature recording at Forrest was also five days. Eucla town experienced eleven days with temperatures at or above 40°C during the summer, which exceeded its previous record in its 56 years of recording of 9 days at or above 40 °C in summer.

Minimum temperature

Mean daily minimum temperatures during summer 2013-14 were above to very much above average over most of western and southern WA, with temperatures up to 2 °C warmer than normal in the west Pilbara, Gascoyne, Central West, and Central Wheat Belt, as well as in the eastern Eucla and eastern Southern Interior. Parts of the Kimberley and adjacent northeastern parts of the Northern Interior saw below average mean minimum temperatures, with minima up to 2 °C below normal in the southeast Kimberley.

When averaged across the State, the mean minimum temperature for summer 2013-14 was above average, as a result of an above average December and January, and a near average February. The mean minimum temperature for the Lower Southwest (southwest of a line from Jurien Bay to Bremer Bay) as a whole for summer was tenth warmest on record, as a result of a near average December, and an above average January and February.

Very warm nights were observed in the west Pilbara and western SWLD in the second week of January in association with very high day-time temperatures. Paraburdoo (Pilbara) recorded a minimum temperature of 32.4 °C on the 10th, the highest minimum temperature of the season in WA, whilst further south, Perth Metro, Pearce RAAF (Lower West), and Wongan Hills (Central Wheat Belt) all recorded their highest minimum temperature in summer on record on the same morning. Perth Metro's record was also its highest minimum temperature for any month since records commenced in 1897.

In the SWLD, December 2013 started with cool to cold nights from the 1st to 5th, 8th to 11th, and 21st to 23rd. A minimum of 3.0 °C was recorded at Salmon Gums Research Station on the 10th, which was the lowest temperature of summer 2013-14 in WA.

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Extremes in summer 2013-14
Hottest day 49.2 °C at Emu Creek Station on 10 Jan 2014
Warmest days on average 41.5 °C at Emu Creek Station
Coolest days on average 22.5 °C at Albany
Coldest day 17.1 °C at Pemberton on 7 Dec 2013
Coldest night 3.0 °C at Salmon Gums Res.Stn. on 10 Dec 2013
3.1 °C at Salmon Gums Res.Stn. on 22 Dec 2013
Coolest nights on average 11.8 °C at Rocky Gully
Warmest nights on average 27.1 °C at Bedout Island
26.4 °C at Broome Airport
Warmest night 32.4 °C at Paraburdoo Aero on 10 Jan 2014
Warmest on average overall 33.2 °C at Emu Creek Station
Coolest on average overall 18.4 °C at Hopetoun North
Wettest overall 1403.0 mm at Microwave Tower
Wettest day 308.8 mm at Microwave Tower on 8 Feb 2014
Highest wind gust 172 km/h at Roebourne Aero on 30 Dec 2013

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
Highest daily rainfall
in summer 2013-14 (mm)
Previous wettest
for summer
Years of
record
Edjudina 127.0 on 23 Jan 2014 98.0 on 27 Feb 1995 112
Leonora 109.2 on 23 Jan 2014 105.9 on 27 Feb 1995 112
Three Rivers 130.0 on 22 Jan 2014 88.0 on 10 Dec 1995 98
Doolgunna 151.0 on 22 Jan 2014 92.0 on 17 Feb 2011 86
Mount Amhurst 123.6 on 18 Jan 2014 121.9 on 11 Jan 1930 61
Cygnet Bay 269.4 on 10 Feb 2014 209.4 on 16 Dec 1993 52
Arubiddy 84.8 on 24 Jan 2014 47.0 on 23 Jan 2000 51
Rawlinna Homestead 66.8 on 24 Jan 2014 54.6 on 7 Dec 1997 51
Cowarna Downs 121.2 on 23 Jan 2014 102.0 on 27 Feb 1995 47
Rawlinna Depot 85.0 on 24 Jan 2014 71.2 on 17 Feb 2001 45
Kununurra Aero 163.8 on 8 Feb 2014 162.2 on 2 Jan 2005 43
Argyle Aerodrome 138.2 on 16 Jan 2014 108.2 on 7 Feb 1997 30



Record highest total summer rainfall
Total rainfall
for summer 2013-14 (mm)
Previous wettest
for summer
Years of
record
Average for
summer
Eyre 289.0 238.4 in 1999 83 55.9
Arubiddy 282.6 232.7 in 1999 49 62.4
Rawlinna Homestead 209.4 190.0 in 2010 49 59.8
Rawlinna Depot 314.2 222.4 in 1999 44 72.5
Kununurra Aero 1124.2 947.8 in 2008 39 565.3
Kingston Rest 922.6 828.0 in 1999 33 545.6



Record lowest total summer rainfall
Total rainfall
for summer 2013-14 (mm)
Previous driest
for summer
Years of
record
Average for
summer
Denham 0.0 = 0.0 in 2004 113 25.4
Collie 0.8 =0.8 in 2009 114 46.7
Kalbarri 0.0 = 0.0 in 2009 44 17.0
Bickley 0.8 1.2 in 2009 43 49.9



Record highest summer temperature
Highest temperature
in summer 2013-14 (°C)
Previous warmest
for summer
Years of
record
Average for
summer
Kellerberrin 47.5 on 12 Jan 2014 = 47.5 on 3 Feb 2007 104 33.2
Cocos Island Airport 32.5 on 14 Feb 2014 32.4 on 19 Feb 1979 63 29.7
Wagin 44.0 on 12 Jan 2014 43.7 on 26 Dec 2007 41 30.2



Record highest summer mean daily maximum temperature
Mean daily maximum
temperature
for summer 2013-14 (°C)
Previous warmest
for summer
Years of
record
Average for
summer
Kalbarri 35.1 35.0 in 1980 37 32.9



Record highest summer daily minimum temperature
Highest daily minimum
temperature
in summer 2013-14 (°C)
Previous warmest
for summer
Years of
record
Average for
summer
Perth Metro 29.7 on 12 Jan 2014 29.3 on 6 Feb 1898, 8 Feb 1933, 3 Feb 1962 116 17.6
Pearce RAAF 31.2 on 12 Jan 2014 30.6 on 31 Jan 1984 57 16.4
Wongan Hills 30.5 on 12 Jan 2014 29.4 on 26 Jan 1968 49 17.3



Summary statistics for summer 2013-14
Maximum temperatures
for summer
(°C)
Minimum temperatures
for summer
(°C)
Rainfall
for summer
(millimetres)
Mean for
summer
2013-14
Diff
from
average
Highest for
summer
2013-14
Mean for
summer
2013-14
Diff
from
average
Lowest for
summer
2013-14
Total for
summer
2013-14
Average
for
summer
Rank of
summer
2013-14
Fraction of
summer
average
North Kimberley (district 01)
Doongan 32.8 -0.6 37.8 10 Jan 2014 22.7 -0.1 19.4 23 Feb 2014 864.1 781.5 average 111%
Kalumburu 34.1 0.0 39.4 11 Dec 2013 24.4 -0.2 21.8 6 Jan 2014 774.0 841.8 average 92%
Mount Elizabeth         22.1 0.0 15.7 9 Jan 2014 809.3 658.4 high 123%
Troughton Island 31.5 -0.6 34.3 14 Dec 2013 26.5 -0.1 22.7 6 Jan 2014 589.4 591.0 average 100%
Wyndham 35.6 -1.4 41.1 3 Jan 2014 25.9 -0.5 21.3 23 Feb 2014 1074.0 551.8 v high 195%
Wyndham Aero 35.6 -1.1 41.3 18 Dec 2013 25.8 -0.5 22.5 23 Feb 2014 1097.8 562.7 v high 195%
East Kimberley (district 02)
Argyle Aerodrome 35.5 -1.0 41.5 16 Dec 2013 25.3 -0.3 22.1 24 Dec 2013 783.0 487.8 high 161%
Halls Creek Airport 35.0 -1.7 41.2 11 Jan 2014 23.7 -0.6 20.1 23 Feb 2014 665.4 380.4 v high 175%
Kununurra Aero 35.5 -0.5 41.7 11 Dec 2013 24.5 -0.6 18.8 9 Jan 2014 1124.2 565.3 highest 199%
Warmun 35.5 -1.8 41.4 16 Dec 2013 24.3 -0.5 19.0 8 Jan 2014 814.6 472.9 v high 172%
West Kimberley (district 03)
Bidyadanga 34.9 +0.4 42.0 5 Jan 2014 25.9 +0.1 19.4 23 Feb 2014 495.6 320.4 high 155%
Broome Airport 33.7 +0.3 40.4 5 Jan 2014 26.4 +0.2 22.8 25 Feb 2014 766.6 418.9 v high 183%
Curtin Aero 36.2 -0.6 42.7 8 Jan 2014 24.6 -0.3 20.5 24 Feb 2014 606.2 582.8 average 104%
Derby Aero 35.7 +0.1 41.8 8 Jan 2014 25.8 0.0 22.7 15 Jan 2014 521.8 471.5 average 111%
Fitzroy Crossing Aero 38.0 +0.2 44.5 12 Jan 2014 25.0 -0.2 18.2 23 Feb 2014 398.8 458.5 average 87%
Lombadina Airstrip 33.0   38.0 11 Dec 2013 25.6   22.0 12 Dec 2013 854.4
West Roebuck 34.7 0.0 41.3 5 Jan 2014 25.1 -0.1 21.9 6 Feb 2014 481.2 540.2 average 89%
De Grey (district 04)
Bedout Island 33.2   37.3 28 Dec 2013 27.1   23.9 26 Jan 2014
Karratha Aero 36.6 +0.8 44.0 20 Dec 2013 26.3 0.0 22.4 3 Dec 2013 173.8 141.8 high 123%
Mandora 36.6 +0.5 44.9 5 Jan 2014 25.0 +0.1 16.0 24 Feb 2014        
Marble Bar 39.9 -0.8 45.5 13 Jan 2014 25.4 -0.9 20.4 24 Feb 2014 467.0 209.8 v high 223%
Pardoo Station 36.5 +0.4 43.1 28 Dec 2013 25.0 -0.5 19.0 27 Feb 2014 440.6 171.1 v high 258%
Port Hedland Airport 36.5 +0.1 41.5 26 Dec 2013 25.3 +0.3 20.4 2 Dec 2013 262.0 177.4 high 148%
Roebourne 39.2 +0.7 45.9 8 Jan 2014 25.8 0.0 20.1 2 Dec 2013 216.3 140.0 high 155%
Roebourne Aero 39.0 +0.4 45.6 21 Dec 2013 25.4 -0.4 18.1 2 Dec 2013        
Shay Gap 39.1   44.6 10 Jan 2014          
Fortescue (district 05)
Barimunya 36.8   43.5 14 Jan 2014 23.8   19.5 11 Dec 2013 505.8
Barrow Island Airport 33.9 +0.9 40.8 9 Jan 2014 25.7 +0.1 21.0 3 Dec 2013 17.8 86.8 average 21%
Coondewanna 36.4   42.6 10 Jan 2014 22.2   16.3 22 Dec 2013 407.4
Learmonth Airport 38.3 +0.9 48.1 9 Jan 2014 23.4 +0.7 16.7 1 Dec 2013 39.6 82.2 average 48%
Mardie 38.0 +0.3 47.8 14 Jan 2014 25.5 +1.1 18.4 1 Dec 2013 77.6 109.9 average 71%
Onslow Airport 36.9 +0.7 48.7 8 Jan 2014 25.4 +1.5 20.3 1 Dec 2013 14.4 108.3 low 13%
Wittenoom 38.5 -0.4 45.0 14 Jan 2014 25.0 -0.6 20.7 11 Dec 2013 330.2 273.2 high 121%
West Gascoyne (district 06)
Carnarvon Airport 33.3 +2.3 44.5 5 Feb 2014 23.3 +1.1 18.2 1 Dec 2013 9.4 38.3 average 25%
Denham 32.2 +1.7 42.0 5 Feb 2014 23.0 +1.2 16.2 6 Dec 2013 0 25.4 lowest 0%
Emu Creek Station 41.5 +1.1 49.2 10 Jan 2014 24.9 +0.9 17.9 1 Dec 2013 127.0 128.0 average 99%
Murchison 39.5 +1.0 47.0 11 Jan 2014         18.5 65.6 low 28%
Shark Bay Airport 35.6 +2.0 45.3 18 Jan 2014 22.1 +0.9 16.9 1 Dec 2013 0.2 47.6 low 0%
East Gascoyne (district 07)
Newman Aero 37.4 -0.9 44.3 14 Jan 2014 23.9 -0.3 18.5 20 Feb 2014 311.0 183.3 high 170%
Paraburdoo Aero 39.8 -0.1 46.0 9 Jan 2014 25.4 +0.3 19.1 2 Jan 2014 161.4 160.7 average 100%
Murchison (district 07A)
Meekatharra Airport 36.9 -0.2 43.7 13 Jan 2014 23.6 +0.2 17.0 11 Dec 2013 199.0 81.1 v high 245%
Mount Magnet Aero 37.1 +0.4 45.4 12 Jan 2014 23.1 +0.6 16.0 1 Dec 2013 123.4 88.6 high 139%
Paynes Find 36.5 +0.3 46.4 12 Jan 2014 21.4 +1.3 13.2 1 Dec 2013 114.9 57.0 high 202%
North Coast (district 08)
Carnamah 37.1 +2.0 47.0 12 Jan 2014 19.3 +1.3 12.0 1 Dec 2013 10.7 34.6 average 31%
Dalwallinu 34.9 +0.5 44.9 12 Jan 2014 18.1 +0.7 10.7 3 Dec 2013 8.8 48.2 low 18%
Geraldton Airport 33.5   45.8 11 Jan 2014 19.1   11.7 4 Dec 2013 7.8
Kalbarri 35.1 +2.2 44.4 19 Jan 2014     10.0 4 Dec 2013 0 17.0 lowest 0%
Morawa Airport                 11.4 56.9 low 20%
Mullewa 37.4 +1.5 47.0 11 Jan 2014 20.8 +1.9 12.1 3 Dec 2013 27.3 39.3 average 69%
Wongan Hills 34.9 +1.2 45.2 12 Jan 2014 17.9 +0.6 10.5 3 Dec 2013 5.2 39.3 low 13%
Central Coast (district 09)
Badgingarra Research Stn 34.8 +1.0 45.0 11 Jan 2014 17.4 +0.8 7.5 1 Dec 2013 11.2 34.3 average 33%
Bickley 30.7 +0.9 40.7 11 Jan 2014 15.6 +0.6 9.1 4 Dec 2013 0.8 49.9 lowest 2%
Champion Lakes 31.9   42.2 11 Jan 2014 18.2   12.8 4 Dec 2013 0.4
Garden Island HSF 27.6 +0.5 41.4 11 Jan 2014 19.0 +0.5 13.9 4 Dec 2013 2.8 30.7 v low 9%
Gingin Aero 33.3 +1.0 44.5 11 Jan 2014 16.5 +0.5 8.1 2 Dec 2013 1.4 34.3 low 4%
Gosnells City 33.4 +1.2 44.0 11 Jan 2014 18.1 +0.2 12.0 2 Jan 2014 2.5 38.3 v low 7%
Jandakot Aero 31.8 +1.2 43.2 11 Jan 2014 16.6 +0.5 8.7 2 Jan 2014 2.0 42.0 v low 5%
Jurien Bay 31.1 +1.4 41.0 19 Feb 2014 17.1 +0.2 11.0 4 Dec 2013
Karnet 30.4 +0.6 40.6 11 Jan 2014 15.3 +0.4 8.8 3 Dec 2013 4.0 54.3 v low 7%
Lancelin 30.9 +2.1 43.5 11 Jan 2014 17.6 +0.3 10.5 4 Dec 2013 4.0 29.2 low 14%
Medina Research Centre 31.3 +1.1 44.4 11 Jan 2014 16.9 +0.2 8.4 4 Dec 2013 1.4 42.5 v low 3%
Pearce RAAF 34.1 +1.8 44.5 11 Jan 2014 16.9 +0.5 9.3 23 Dec 2013 0.8 27.6 v low 3%
Perth Airport 32.6 +1.7 43.5 11 Jan 2014 17.2 +0.7 9.6 2 Jan 2014 1.0 35.1 v low 3%
Perth Metro 32.0 +1.4 43.3 11 Jan 2014 18.1 +0.5 12.6 2 Jan 2014 2.0 35.4 low 6%
Rottnest Island 27.1 +0.8 35.2 4 Feb 2014 19.3 +0.6 14.0 4 Dec 2013 1.2 28.7 v low 4%
Swanbourne 31.2 +1.8 44.3 11 Jan 2014 18.2 +0.4 12.4 4 Dec 2013 0.2 32.5 v low 1%
South Coast (district 09A)
Albany 22.5 0.0 29.9 12 Jan 2014 16.1 +1.2 11.6 3 Dec 2013 61.2 76.7 average 80%
Albany Airport 24.7   39.2 12 Jan 2014 13.6   6.4 28 Dec 2013 64.4
Bridgetown 29.5 +0.5 40.0 12 Jan 2014 11.9 -0.7 3.8 9 Feb 2014 2.4 45.0 v low 5%
Bunbury 29.7 +0.7 40.8 11 Jan 2014 14.6 -0.4 6.9 8 Dec 2013 2.0 38.1 low 5%
Busselton Aero 30.0 +0.6 40.2 11 Jan 2014 13.5 -0.3 5.5 3 Jan 2014 1.6 24.5 v low 7%
Cape Leeuwin 23.4 +0.7 30.3 25 Jan 2014 17.4 +0.7 14.0 5 Dec 2013 10.6 52.8 v low 20%
Cape Naturaliste 27.1 +2.1 37.5 11 Jan 2014 15.2 +0.3 10.0 9 Dec 2013 7.6 35.4 v low 21%
Collie East 30.9 +1.0 40.8 12 Jan 2014 12.2 -0.9 5.0 8 Dec 2013 1.8 46.4 v low 4%
Donnybrook 31.2 +1.4 40.2 11 Jan 2014 14.8 +1.2 7.5 3 Jan 2014 3.2 43.5 v low 7%
Dwellingup 30.8 +2.0 41.0 11 Jan 2014 14.4 +0.6 8.6 2 Jan 2014 4.8 57.4 v low 8%
Esperance 25.9 +0.3 45.3 17 Dec 2013 16.2 +0.8 10.3 27 Feb 2014 41.8 69.9 average 60%
Esperance Aero 28.2 +1.3 45.6 17 Dec 2013 14.8 +0.2 9.5 10 Dec 2013 58.0 72.3 average 80%
Harvey 31.2 +0.9 41.0 11 Jan 2014         1.0 40.3 v low 2%
Hopetoun North 23.7 -1.3 42.1 15 Dec 2013 13.2 -1.7 6.0 27 Feb 2014 13.8 88.1 v low 16%
Jarrahwood 30.5 +1.7 40.7 12 Jan 2014 12.0 -0.5 3.6 3 Jan 2014 3.0 43.7 v low 7%
Mandurah 29.9 +1.3 41.6 11 Jan 2014 18.9 +0.4 13.7 9 Dec 2013 0.8 44.1 v low 2%
Manjimup 28.0 +1.6 39.3 12 Jan 2014 12.8 +0.1 7.1 9 Feb 2014 9.6 63.2 v low 15%
North Walpole 24.4   35.6 12 Jan 2014 14.1   8.7 22 Dec 2013 52.4 90.7 low 58%
Pemberton 27.1 +1.6 37.4 12 Jan 2014 13.3 +0.4 6.6 9 Feb 2014 33.0 75.1 low 44%
Rocky Gully 27.7 +0.9 42.1 12 Jan 2014 11.8 -0.5 4.9 28 Dec 2013 44.0 65.4 low 67%
Windy Harbour 23.1 +0.1 30.7 25 Jan 2014 14.1 0.0 6.8 29 Jan 2014 26.9 58.0 v low 46%
Witchcliffe 27.2 +1.1 37.0 12 Jan 2014 13.1 -0.5 6.3 3 Jan 2014 11.4 34.3 v low 33%
North Central (district 10)
Bencubbin 34.4 +0.9 45.0 12 Jan 2014 18.6 +1.2 11.6 4 Dec 2013 44.4 50.3 average 88%
Cunderdin Airfield 34.8 +0.9 47.1 12 Jan 2014 16.7 +0.2 8.2 23 Dec 2013 8.0 42.6 low 19%
Merredin 34.6 +1.6 45.6 12 Jan 2014 18.1 +0.9 10.3 1 Dec 2013 23.6 44.4 average 53%
Northam 34.3 +0.9 46.3 12 Jan 2014 17.3 +0.7 10.7 4 Dec 2013 6.8 33.2 low 20%
York 34.5 +1.2 46.6 12 Jan 2014 15.5 -0.2 7.2 23 Dec 2013 8.3 51.3 low 16%
South Central (district 10A)
Beverley 35.0 +1.7 46.4 12 Jan 2014 16.0 +0.2 8.4 23 Dec 2013 4.2 35.4 low 12%
Brookton 33.3 +1.2 45.2 12 Jan 2014 15.7 +0.7 8.5 4 Dec 2013 5.6 37.2 low 15%
Corrigin 32.9 +1.4 45.9 12 Jan 2014 15.9 +0.6 9.0 3 Dec 2013 27.0 46.4 average 58%
Hyden 34.0 +1.2 46.0 12 Jan 2014 15.6 +0.5 9.5 5 Dec 2013 22.2 53.9 average 41%
Jacup 28.7 +1.7 45.2 12 Jan 2014 12.5 -0.3 5.6 11 Dec 2013 17.6 79.4 v low 22%
Katanning 30.4 +1.1 43.6 12 Jan 2014 12.8 -0.4 6.7 9 Dec 2013 2.4 60.5 v low 4%
Lake Grace 31.4 +1.1 45.1 12 Jan 2014 14.7 -0.1 8.4 11 Dec 2013 27.2 71.9 average 38%
Narembeen 33.7 +0.7 45.3 12 Jan 2014 16.6 +0.6 9.1 9 Feb 2014 22.7 47.0 average 48%
Narrogin 31.5 +1.5 43.7 12 Jan 2014 14.4 +0.8 8.2 10 Dec 2013 5.4 42.9 low 13%
Newdegate Research Station 31.7 +1.5 45.9 12 Jan 2014 12.5 -0.8 3.8 22 Dec 2013 18.6 55.0 low 34%
Ongerup 29.1 +1.2 44.5 12 Jan 2014 13.6 0.0 7.4 9 Dec 2013 16.0 54.1 low 30%
Pingelly 32.3 +1.2 44.4 12 Jan 2014 15.4 +0.2 8.6 4 Dec 2013 8.8 37.0 low 24%
Ravensthorpe 28.6 +0.5 44.2 12 Jan 2014 14.1 +0.3 8.0 22 Dec 2013 45.2 73.2 average 62%
Wagin 31.6 +1.4 44.0 12 Jan 2014 14.2 +0.1 8.0 8 Dec 2013 1.6 41.0 v low 4%
Eucla (district 11)
Balladonia 29.7 -1.0 44.6 13 Jan 2014 15.2 +0.9 8.5 10 Dec 2013 189.4 58.4 v high 324%
Eucla 27.3 +1.8 47.4 27 Dec 2013 16.8 +0.6 9.7 4 Jan 2014 136.0 52.8 v high 258%
Eyre 27.2 +1.1 45.5 31 Dec 2013 15.1 0.0 4.2 29 Dec 2013 289.0 55.9 highest 517%
Forrest 32.5 +0.3 46.5 27 Dec 2013 16.2 +0.3 8.3 10 Dec 2013 125.2 81.3 high 154%
Red Rocks Point 25.6   46.6 31 Dec 2013 17.7   10.0 4 Jan 2014 152.0 89.4 high 170%
South East (district 12)
Bulga Downs 35.8 -1.0 45.5 26 Dec 2013 21.2 -0.2 15.0 6 Dec 2013 243.4 73.7 v high 330%
Kalgoorlie-Boulder Airport 31.7 -0.9 43.5 13 Jan 2014 17.8 +0.2 10.5 4 Dec 2013 190.8 73.3 v high 260%
Laverton Aero 35.0 +0.8 45.0 15 Jan 2014 20.7 +0.1 11.8 11 Dec 2013 183.0 137.1 high 133%
Leinster Aero 35.8 -0.1 44.3 26 Dec 2013 22.2 0.0 13.8 11 Dec 2013 148.2 107.8 average 137%
Leonora 35.3 -0.6 46.3 15 Jan 2014 21.0 +0.1 13.2 11 Dec 2013 232.4 74.0 v high 314%
Leonora Aero 35.0   45.3 15 Jan 2014 21.4   14.5 11 Dec 2013 224.6
Munglinup West 28.9 +0.6 45.2 17 Dec 2013 14.1 0.0 8.5 10 Dec 2013 65.8 96.1 low 68%
Norseman Aero 31.1 -0.5 43.6 17 Dec 2013 15.4 +0.1 5.9 5 Dec 2013 95.0 92.2 average 103%
Salmon Gums Res.Stn. 31.0 +1.3 45.1 17 Dec 2013 13.5 +0.1 3.0 10 Dec 2013        
Southern Cross Airfield 33.9 +0.2 45.8 12 Jan 2014 18.0 +1.1 10.3 4 Dec 2013 65.4 71.0 average 92%
North East (district 13)
Carnegie 37.2 -0.4 45.5 14 Jan 2014 23.0 +0.1 15.5 11 Dec 2013 262.8 112.7 v high 233%
Giles Meteorological Office 35.8 -0.5 41.7 31 Jan 2014 22.1 -0.7 15.2 22 Feb 2014 107.8 120.5 average 89%
Telfer Aero 38.8 -1.0 45.2 12 Jan 2014 25.5 -0.1 19.9 24 Feb 2014 406.8 206.7 v high 197%
Warburton Airfield 37.7 +0.7 44.9 29 Dec 2013 23.2 +1.2 15.7 23 Dec 2013 56.0 97.6 average 57%
Wiluna         22.9 +0.9 15.5 11 Dec 2013 283.2 97.1 v high 292%
Offshore Islands (district 200)
Adele Island 30.9   33.9 11 Dec 2013 26.7   22.3 8 Feb 2014
Browse Island 30.0   33.2 19 Dec 2013 26.8   22.6 5 Jan 2014
Christmas Island Aero 28.4 +0.5 29.8 6 Feb 2014 22.8 +0.2 19.8 1 Dec 2013 1035.8 864.0 high 120%
Cocos Island Airport 30.2 +0.5 32.5 14 Feb 2014 25.3 +0.5 22.4 20 Jan 2014 462.0 470.4 average 98%
Varanus Island 32.0 0.0 36.5 9 Jan 2014 26.1 +0.2 22.5 6 Feb 2014 42.8 104.2 average 41%

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 1 pm on Monday 3 March 2014. 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.

The ACORN-SAT dataset is being used for temperature area averages from December 2012 onwards. The major change from earlier datasets is that the ACORN-SAT dataset commences in 1910, rather than 1950, and hence rankings are calculated using a larger set of years.

Further information

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