Western Australia in February 2013: A hot month for WA

  • Rainfall: near average for WA; below average for southwest WA
  • Maximum temperature: above average for WA; 6th hottest for southwest WA
  • Minimum temperature: above average for WA; 11th warmest for southwest WA

Rainfall

Rainfall during February 2013 was above to very much above average in the east Pilbara and adjacent west Kimberley, and in western parts of the Northern and Southern Interior, mainly due to heavy rainfall associated with severe tropical cyclone Rusty towards the end of the month. Yarrie in the east Pilbara reported its wettest February for 33 years mainly as a result of heavy falls on the 26th and 27th. For the remainder of the state, February rainfall totals ranged from close to average to below average. Very much below average rainfall was reported in parts of the southern Gascoyne, Goldfields, and Eucla; however, it should be noted that February rainfall is generally low in southern WA.

Averaged across the state as a whole, rainfall during February 2013 was close to average for WA, while for the Lower Southwest (southwest of a line from Jurien Bay to Bremer Bay) and the SWLD rainfall was below average.

Several stations in the west Kimberley and east Pilbara reported record high daily rainfall for February as a result of TC Rusty. The highest daily fall during in WA during February was 263.4 mm at Bamboo Creek in the east Pilbara on the 28th, however the rain gauge overflowed so the actual total was likely to be higher.

Maximum temperature

Maximum temperatures during February 2013 were above to very much above average over much of western and southern WA, as well as the north and west Kimberley. Particularly high temperatures were reported near the WA west coast as Carnarvon Airport registered its equal third hottest February in 67 years of record, Perth Metro reported its fourth hottest February in 117 years of record, and Cape Leeuwin (116 years of record) and Jarrahwood (30 years of record) reported their highest February mean maximum temperatures on record. Cape Leeuwin recorded a mean maximum temperature for February of 25.5 °C, which equalled its highest mean monthly maximum temperature for any month (December 1909), and exceeded the previous February record of 25.4 °C, which was recorded only two years ago in February 2011. Sea surface temperatures (SST) off the southwest WA coast in 2011 and 2012 were the highest since records commenced in 1900, and in February 2013 were approximately 1 °C above average. Most of the east Pilbara, southern Kimberley, and Northern and Southern Interior saw near average mean maximum temperatures for February 2013.

When averaged across the state as a whole, the mean maximum temperature for WA for February 2013 was above average, continuing a run of above average monthly mean maxima for WA since April 2012. Averaged across the Lower Southwest, the mean maximum temperature was the 6th hottest for February since comparable records commenced in 1910.

Troughton Island, off the north Kimberley coast recorded a daily maximum temperature of 35.2 °C on the 7th, which was its highest temperature for February in 34 years of record. On the 17th, very hot conditions were reported in the southeast of the State ahead of an eastward moving surface trough, and Kalgoorlie-Boulder Airport reported a maximum temperature of 44.9 °C, its equal highest February maximum in 72 years of record. In contrast, Port Hedland Airport observed its coolest February day in 65 years of record with a daily maximum temperature of 23.9 °C on the 27th, as the town was battered by gale force southerly winds with showers and overcast conditions as TC Rusty was passing to the east of the town.

Minimum temperatures

Minimum temperatures during February 2013 were above to very much above average across much of western and southern WA, as well as parts of east Kimberley and the Northern and Southern Interior. Overnight temperatures up to 3 °C above average in the inland western Gascoyne, and the far southeastern Northern Interior.

When averaged across WA as a whole, the mean minimum temperature during February 2013 was above average. The Lower Southwest saw well above normal overnight minima, with the region observing its eleventh-warmest February, continuing a run of above average February mean minima for the region; 2010 (14th highest), 2011 (2nd highest), 2012 (13th highest), 2013 (11th highest).

Balladonia in the Eucla region observed its warmest night for February in 48 years of record on the 17th with a daily minimum of 26.4 °C. This high minimum followed a maximum of 42.7 °C on the 16th, and was followed by a maximum of 46.2 °C later on the 17th. The minimum of 26.4 °C was 1.4 °C warmer than the previous February record at Balladonia of 25.0 °C set on 2 February 1993.

Tropical Cyclones

A tropical low developed in the waters off northwest WA on the 22nd and was named tropical cyclone Rusty in the afternoon on the 24th, about 360km north of Port Hedland. Rusty continued to intensify as it moved slowly in a south to southeasterly direction towards the east Pilbara coast and became a severe tropical cyclone on the 25th, reaching category four for a brief period on the morning of the 27th. Rusty crossed the Pilbara coast about 10km east of Pardoo Station in the afternoon on the 27th. After landfall Rusty moved southward and weakened rapidly to below tropical cyclone intensity on the 28th over the east Pilbara and continued to produce heavy rainfall along its path.

Port Hedland Airport recorded sustained gale force winds for 39 hours from midnight on the 25th to 3 pm on the 27th, which is unprecedented in the wind record at the Airport that goes back to 1942. The highest wind gusts recorded were 124km/h at Bedout Island and 119km/h at Port Hedland Airport.

Water and structural damage to buildings was reported from both Pardoo Station and Pardoo Roadhouse, with many trees down and significant flooding. Pardoo Station also reported cattle loss as a result of hypothermia. Only minor damage was reported in Port Hedland but there was a significant disruption to shipping and offshore industries with Port Hedland Port closed for 86 hours, as well as onshore mining operations near the path of Rusty. Major flooding occurred in the De Grey River catchment as a result of the prolonged heavy rainfall.

Further information

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Extremes in February 2013
Hottest day 46.9 °C at Learmonth Airport on the 6th
46.9 °C at Eyre on the 17th
Warmest days on average 41.4 °C at Emu Creek Station
Coolest days on average 23.7 °C at Albany
Coldest day 20.2 °C at Mount Barker on the 18th
Coldest night 5.0 °C at Jarrahwood on the 23rd
Coolest nights on average 13.5 °C at Rocky Gully
Warmest nights on average 28.5 °C at Varanus Island
26.5 °C at Karratha Aero
Warmest night 32.5 °C at Gascoyne Junction on the 6th
Wettest overall 987.6 mm at Cocos Island Airport
577.8 mm at Country Downs (missing data)
Wettest day 416.0 mm at Cocos Island Airport on the 25th
263.4 mm at Bamboo Creek on the 28th (rain gauge overflow)
Highest wind gust 119 km/h at Port Hedland Airport on the 26th

Maps

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

Record highest February daily rainfall
Highest daily rainfall
in February 2013 (mm)
Previous wettest
for February
Years of
record
Pardoo Station 200.0 on the 26th 177.8 on the 27th in 1925 96
Country Downs 258.6 on the 24th 157.6 on the 29th in 2000 42
Telfer Aero 177.0 on the 28th 112.2 on the 4th in 1993 40
Kilto Station 148.0 on the 24th 139.0 on the 14th in 2009 32


Record highest total February rainfall
Total rainfall
for February 2013 (mm)
Previous wettest
for February
Years of
record
Average for
February
Country Downs 577.8 565.6 in 2008 39 252.7




Record highest February temperature
Highest temperature
in February 2013 (°C)
Previous warmest
for February
Years of
record
Average for
February
Kalgoorlie-Boulder Airport 44.9 on the 17th = 44.9 on the 4th in 2007 72 32.1
Troughton Island 35.2 on the 7th 34.8 on the 16th in 2005 34 31.5



Record lowest February daily maximum temperature
Lowest daily maximum
temperature
in February 2013 (°C)
Previous coolest
for February
Years of
record
Average for
February
Port Hedland Airport 23.9 on the 27th 25.6 on the 13th in 1961 65 36.2



Record highest February mean daily maximum temperature
Mean daily maximum
temperature
for February 2013 (°C)
Previous warmest
for February
Years of
record
Average for
February
Cape Leeuwin 25.5 25.4 in 2011 116 23.3
Jarrahwood 32.7 32.3 in 2011 30 29.7



Record highest February daily minimum temperature
Highest daily minimum
temperature
in February 2013 (°C)
Previous warmest
for February
Years of
record
Average for
February
Balladonia 26.4 on the 17th 25.0 on the 2nd in 1993 48 14.8


Summary statistics for February 2013
Maximum temperatures
for February
(°C)
Minimum temperatures
for February
(°C)
Rainfall
for February
(millimetres)
Mean for
February
2013
Diff
from
average
Highest for
February
2013
Mean for
February
2013
Diff
from
average
Lowest for
February
2013
Total for
February
2013
Average
for
February
Rank of
February
2013
Fraction of
February
average
North Kimberley (district 01)
Doongan 33.2 +0.6 38.1 7th 22.4 -0.2 19.4 3rd 234.0 243.8 average 96%
Kalumburu 33.6 +0.4 37.1 6th 23.6 -0.8 21.3 9th 365.8 308.7 average 118%
Mount Elizabeth 33.1 +0.9 37.2 6th 21.9 +0.1 20.0 8th 241.1 225.3 average 107%
Troughton Island 32.6 +1.1 35.2 7th 26.9 +0.8 23.9 9th 330.8 202.7 high 163%
Truscott 32.6   35.3 6th 24.7   21.1 5th 370.2
Wyndham 36.3 +0.3 41.5 6th 26.1 +0.2 22.3 9th 224.6 204.3 average 110%
Wyndham Aero 36.3 +0.6 41.9 5th 25.9 +0.1 22.0 9th 265.4 216.6 average 123%
East Kimberley (district 02)
Argyle Aerodrome 37.1 +1.5 42.3 6th 25.7 +0.5 23.6 22nd 98.8 186.4 average 53%
Halls Creek Airport 36.3 +0.7 41.6 7th 24.2 +0.5 20.8 16th 99.8 143.0 average 70%
Kununurra Aero 35.8 +0.8 41.1 6th 24.7 0.0 21.5 19th 184.0 210.6 average 87%
Warmun 37.1 +1.0 42.7 6th 25.2 +0.8 22.8 6th 97.7 174.8 average 56%
West Kimberley (district 03)
Bidyadanga 34.5 +0.4 38.0 20th 26.0 +0.4 23.1 26th 281.6 137.7 high 205%
Broome Airport 33.4 +0.5 36.5 21st 25.7 -0.3 20.6 8th 258.4 179.8 high 144%
Curtin Aero 36.4 +1.0 41.4 6th 24.4 -0.3 22.2 8th 221.8 217.1 average 102%
Cygnet Bay 33.9 +0.8 37.0 6th 25.0 -0.2 20.4 10th 377.8 198.0 high 191%
Derby Aero 34.8 +0.5 38.9 13th 25.2 -0.2 22.6 10th 310.4 200.3 high 155%
Fitzroy Crossing Aero 37.7 +1.1 42.2 7th 24.7 +0.1 21.4 8th 125.6 173.8 average 72%
West Roebuck 33.8 -0.1 36.7 21st 24.9 -0.1 19.5 8th 125.2 238.8 low 52%
De Grey (district 04)
Bedout Island 34.4   36.0 1st     27.0 10th
Karratha Aero 37.1 +1.7 41.4 6th 26.5 -0.1 19.4 13th 31.6 79.2 average 40%
Legendre Island 34.9   38.4 22nd 28.1   24.7 28th
Mandora 35.5 -0.1 41.4 1st 25.3 +0.4 22.2 17th 328.4 103.7 v high 317%
Marble Bar 38.6 -0.9 44.4 5th 24.6 -1.6 19.9 28th 163.8 86.9 high 188%
Pardoo Station 36.9 +1.3 42.5 5th 25.9 +0.2 22.5 13th 259.5 77.4 v high 335%
Port Hedland Airport 35.8 -0.4 42.1 5th 25.4 -0.1 21.1 28th 97.6 94.9 average 103%
Roebourne 38.6 +0.7 43.6 5th 26.2 0.0 22.5 28th 9.3 67.1 average 14%
Roebourne Aero 37.6 -0.2 42.3 5th 25.4 -0.9 22.2 4th 9.0 71.4 average 13%
Fortescue (district 05)
Barrow Island Airport 36.1 +2.9 40.2 6th 27.6 +1.4 23.3 16th 17.6 57.1 average 31%
Learmonth Airport 40.0 +2.6 46.9 6th 25.7 +1.6 22.7 12th 0.8 42.9 low 2%
Mardie 39.3 +1.8 46.3 6th 26.3 +1.0 21.7 14th
Onslow Airport 38.2 +1.9 45.2 6th 26.3 +1.4 21.2 18th 67.2 63.5 average 106%
Wittenoom 37.1 -0.7 41.5 6th 24.5 -0.8 19.9 28th 20.6 109.0 low 19%
West Gascoyne (district 06)
Carnarvon Airport 35.8 +3.4 44.9 1st 24.8 +1.5 21.4 24th 0 20.6 lowest 0%
Denham 34.5 +2.7 45.0 1st     20.2 24th 0 15.3 lowest 0%
Emu Creek Station 41.4 +1.3 46.2 6th 26.1 +1.0 20.8 10th 57.6 64.8 average 89%
Murchison 41.2 +2.9 45.0 21st 25.4 +2.4 19.0 24th 4.1 33.3 low 12%
Shark Bay Airport 38.2 +3.8 45.2 1st 23.6 +1.4 19.7 24th 2.2 28.2 average 8%
East Gascoyne (district 07)
Newman Aero 37.0 +0.1 42.9 23rd 23.4 -0.5 19.0 3rd 39.0 76.3 average 51%
Paraburdoo Aero 39.8 +1.3 44.4 6th 25.0 0.0 19.8 28th
Murchison (district 07A)
Meekatharra Airport 38.5 +1.9 44.0 22nd 25.2 +1.5 21.3 2nd 0 36.5 lowest 0%
Mount Magnet Aero 39.5 +3.0 43.7 16th 25.1 +2.1 19.9 24th 6.4 35.5 low 18%
North Coast (district 08)
Carnamah 37.9 +2.4 45.0 21st 21.3 +2.1 12.9 24th 0.7 14.3 low 5%
Dalwallinu 36.4 +1.7 42.3 16th 19.8 +1.5 12.8 24th 0.8 10.1 low 8%
Geraldton Airport 35.6   44.0 9th 20.2   13.1 24th 0
Geraldton Airport Comparison 35.7 +3.2 44.1 9th 20.0 +0.8 13.3 24th 0 11.2 lowest 0%
Kalbarri 36.3 +2.1 44.9 1st 21.6 +1.0 15.6 5th
Morawa Airport 39.5 +3.0 44.1 16th 22.2 +2.0 14.0 24th 0 20.1 v low 0%
Mullewa 39.4 +3.0 44.6 21st 22.8 +2.7 14.8 24th 3.0 18.4 average 16%
North Island 30.3 +2.0 36.7 20th 22.7 +0.8 20.9 3rd 0 3.8 v low 0%
Wongan Hills 36.4 +2.4 42.0 16th 19.5 +1.3 13.5 18th 1.2 15.3 average 8%
Central Coast (district 09)
Badgingarra Research Stn 36.4 +1.7 42.4 21st 19.5 +1.8 10.4 23rd 0.2 15.4 low 1%
Bickley 32.6 +2.1 39.0 12th 16.5 +0.7 11.2 18th 1.4 19.7 low 7%
Champion Lakes 33.7   39.8 12th 19.6   13.6 24th 0.8
Garden Island HSF 30.2 +1.8 38.7 21st 20.0 +0.6 15.5 18th 0.8 8.8 low 9%
Gingin Aero 35.2 +2.2 41.9 21st 18.1 +1.1 8.9 24th 0 9.5 v low 0%
Gooseberry Hill 35.0 +2.2 43.2 12th 18.6 +0.9 12.9 18th
Gosnells City     42.5 12th 19.8 +1.1 13.7 18th 1.2 15.2 low 8%
Jandakot Aero 34.1 +2.6 41.3 12th 17.9 +0.9 8.9 24th 1.6 16.4 average 10%
Jurien Bay 34.2 +3.4 44.0 10th 19.1 +1.2 13.2 24th 0 14.6 lowest 0%
Karnet 32.0 +1.6 39.0 12th 16.6 +0.9 10.4 23rd 4.0 20.4 average 20%
Lancelin 32.6 +2.8 42.0 10th 19.0 +0.9 11.0 18th 0 12.3 lowest 0%
Medina Research Centre 33.9 +2.5 41.7 12th 18.9 +1.3 11.5 24th 2.8 19.6 average 14%
Pearce RAAF 36.0 +2.8 43.2 21st 18.4 +0.9 9.4 24th 2.4 12.1 average 20%
Perth Airport 34.6 +2.7 41.1 21st 18.6 +1.1 10.1 24th 1.0 14.4 low 7%
Perth Metro 34.1 +2.7 40.5 21st 19.4 +1.2 12.9 24th 0.8 12.7 low 6%
Rottnest Island 29.8 +2.6 38.5 21st 20.5 +1.0 15.9 18th 3.0 11.5 average 26%
Swanbourne 33.5 +3.1 40.9 20th 19.7 +1.1 13.7 18th 1.4 6.9 average 20%
South Coast (district 09A)
Albany 23.7 +0.8 27.1 13th 17.8 +2.3 12.1 24th 12.0 22.7 average 53%
Albany Airport 26.3   34.8 13th 15.3   10.0 24th 10.4
Albany Airport Comparison 26.1 +1.2 35.0 13th 15.3 +0.9 9.5 19th 12.6 22.4 average 56%
Bridgetown 31.6 +1.8 39.6 13th 14.2 +0.6 6.0 24th 1.8 11.9 low 15%
Bunbury 31.3 +1.3 38.6 12th 16.4 +0.5 9.2 6th 0.2 6.6 low 3%
Busselton Aero 31.8 +1.7 37.5 12th 14.7 +0.1 6.8 23rd 2.4 3.5 average 69%
Cape Leeuwin 25.5 +2.2 35.2 21st 19.0 +1.8 16.0 1st 3.2 15.8 low 20%
Cape Naturaliste 28.8 +3.0 36.1 12th 17.4 +1.8 12.3 18th 4.6 11.5 average 40%
Collie East 32.3 +1.7 39.6 12th 13.7 -0.4 6.2 23rd 0.4 5.8 low 7%
Donnybrook 33.1 +2.7 40.7 12th 16.4 +2.0 8.1 23rd 3.0 15.0 average 20%
Dwellingup 32.3 +2.7 39.4 12th 15.5 +1.0 8.4 24th 7.8 20.9 average 37%
Esperance 27.1 +0.9 40.7 4th 16.1 0.0 11.7 1st 11.8 23.9 average 49%
Esperance Aero 29.9 +2.6 43.0 16th 15.1 -0.4 11.2 1st 10.4 25.6 average 41%
Harvey 32.9 +1.8 40.0 12th 16.1 0.0 8.5 18th 1.8 11.0 low 16%
Hopetoun North 23.7 -1.9 34.1 4th 13.0 -2.8 7.8 1st 2.8 19.5 low 14%
Jarrahwood 32.7 +3.0 40.6 12th 14.0 +0.4 5.0 23rd 5.2 13.0 average 40%
Mandurah 31.3 +1.7 38.6 20th 20.2 +0.8 14.6 18th 3.0 9.3 average 32%
Manjimup 30.4 +3.4 39.2 13th 14.4 +1.0 9.0 19th 4.4 18.6 low 24%
North Walpole 26.6   38.0 13th 15.7   11.7 19th 16.2 19.6 average 83%
Pemberton 29.4 +3.0 39.9 13th 15.0 +1.4 9.3 19th 15.0 19.1 average 79%
Rocky Gully 30.1 +2.8 40.7 13th 13.5 +0.2 7.8 8th 8.4 16.3 average 52%
Windy Harbour 25.9 +2.2 35.0 13th 16.1 +1.5 9.0 20th 10.5 15.3 average 69%
Witchcliffe 29.9 +2.9 39.4 12th 14.7 +0.2 9.2 8th 6.4 8.6 average 74%
North Central (district 10)
Bencubbin 35.7 +2.2 43.4 16th 19.8 +1.7 13.8 24th 6.0 20.1 average 30%
Cunderdin Airfield 36.0 +2.0 42.7 16th 18.1 +0.7 12.5 23rd 10.8 12.5 average 86%
Kellerberrin 34.9 +1.6 42.0 14th     11.0 24th 5.5 14.5 average 38%
Merredin 35.8 +2.8 43.2 16th 19.2 +1.2 12.7 24th 2.2 15.4 average 14%
Northam 36.1 +2.4 42.0 16th 18.0 +0.8 11.3 23rd 5.8 13.3 average 44%
York 35.8 +2.3 41.7 16th 16.8 +0.2 10.0 23rd 4.3 12.4 average 35%
South Central (district 10A)
Beverley 36.2 +2.7 42.2 16th 17.3 +0.7 10.6 24th 0.6 13.3 average 5%
Brookton 34.8 +2.6 41.0 12th 17.1 +1.1 8.7 23rd 0.2 14.3 low 1%
Corrigin 34.2 +2.7 41.1 14th 17.2 +1.2 11.1 23rd 0.2 16.3 low 1%
Hyden 35.4 +2.5 43.0 16th 16.7 +0.9 10.8 24th 1.6 19.3 low 8%
Jacup 30.3 +3.1 41.6 14th 14.0 +0.3 7.2 18th 4.8 19.7 low 24%
Katanning 31.7 +2.2 39.7 13th 14.3 +0.2 8.7 18th 2.2 6.4 average 34%
Lake Grace 32.7 +2.2 40.5 16th 16.2 +0.7 10.8 18th 2.8 12.4 average 23%
Narembeen 35.6 +2.6 42.4 16th         4.3 17.8 average 24%
Narrogin 32.8 +2.6 39.6 13th 15.8 +1.5 9.5 23rd 3.8 15.8 average 24%
Newdegate Research Station 32.7 +2.4 40.3 16th 14.9 +0.8 10.1 18th 2.8 21.4 low 13%
Ongerup 30.7 +2.8 39.9 14th 14.8 +0.5 9.8 8th 3.2 18.0 low 18%
Pingelly 33.9 +2.7 40.5 16th 16.8 +0.8 9.4 23rd 0.2 13.6 low 1%
Ravensthorpe 30.5 +2.2 39.2 14th 15.3 +0.7 10.0 1st 4.4 24.7 low 18%
Wagin 32.7 +2.4 40.6 13th 15.8 +1.0 9.9 18th 3.6 15.3 average 24%
Wandering 33.8 +2.2 40.3 13th 14.6 0.0 7.0 23rd 3.0 8.7 average 34%
Eucla (district 11)
Balladonia 32.3 +1.8 46.2 17th 15.4 +0.6 11.6 24th 0 19.2 lowest 0%
Eucla 27.3 +1.6 43.0 17th 17.5 +0.5 12.7 8th 4.6 18.3 average 25%
Eyre 27.8 +1.3 46.9 17th 14.0 -2.1 5.6 3rd 1.2 16.1 low 7%
Forrest 33.2 +1.0 43.7 17th 16.2 -0.5 10.2 2nd 2.0 27.9 low 7%
Red Rocks Point 26.5   44.9 17th 18.4   11.6 8th 0.6 36.1 low 2%
South East (district 12)
Bulga Downs 38.3 +1.6 43.9 16th 22.2 +0.4 17.1 2nd 0 30.1 lowest 0%
Kalgoorlie-Boulder Airport 33.8 +1.7 44.9 17th 19.0 +1.2 13.3 19th 14.0 31.3 average 45%
Laverton Aero 35.7 +2.1 44.1 17th 21.9 +1.2 15.5 1st 0 63.6 v low 0%
Leinster Aero 36.9 +1.6 44.1 22nd 22.9 +0.7 17.8 2nd 2.4 39.2 low 6%
Leonora 36.6 +1.3 44.3 17th 22.1 +1.2 16.9 19th 1.2 30.7 low 4%
Leonora Aero 36.5   44.6 17th 22.5   17.1 19th 0.4
Munglinup West 31.2 +2.4 42.1 16th 15.0 -0.2 9.7 1st 9.4 26.7 low 35%
Norseman Aero 33.7 +2.4 43.0 17th 15.6 -0.5 9.0 1st 3.8 29.0 v low 13%
Salmon Gums Res.Stn. 32.1 +2.5 43.0 16th 14.4 +0.4 6.1 1st 1.0 23.2 low 4%
Southern Cross Airfield 35.4 +1.8 44.5 16th 18.6 +1.0 14.4 24th 4.6 24.1 average 19%
Yeelirrie 37.6 +1.7 44.1 22nd 21.9 +0.6 14.4 2nd 0 31.4 lowest 0%
North East (district 13)
Balgo Hills 37.8 +0.5 43.4 7th 24.7 +0.2 21.4 11th 76.4 85.4 average 89%
Carnegie 38.1 +1.1 45.7 23rd 22.8 -0.1 15.4 27th 31.3 52.4 average 60%
Giles Meteorological Office 36.3 +0.3 43.1 24th 22.9 +0.1 16.5 2nd 18.6 45.5 average 41%
Telfer Aero 38.7 +0.1 44.0 5th 25.8 +0.5 19.8 27th 300.2 102.7 v high 292%
Warburton Airfield 37.2 +0.8 45.0 23rd 23.6 +1.5 17.4 1st 44.0 36.7 average 120%
Wiluna 37.8 +1.3 45.0 22nd 23.9 +1.8 19.0 2nd 0 38.0 lowest 0%
Offshore Islands (district 200)
Varanus Island 34.8 +2.3 37.8 6th 28.5 +1.9 23.6 16th 14.0 64.0 average 22%

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.

This statement has been prepared based on information available at 3 pm on Friday 1 March 2013. 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

Media
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Enquiries