Western Australia in March 2016: Second warmest nights; wet Easter in the southwest

For Western Australia, the mean minimum temperature in March 2016 was 1.7 °C above the long-term average and ranked as the second highest on record. The mean maximum temperature for the State was also above average. The state-wide rainfall was close to the long-term average, whilst for the South West Land Division as a whole, it was above average rainfall.

  • Above average mean maximum temperature
  • Second highest mean minimum temperature
  • Near average rainfall for WA, above average rainfall for South West Land Division
  • Moderate to heavy rainfall in southwest WA from the 22nd to 27th

Below average to very much below average rainfall was reported in much of the Pilbara, north Gascoyne, and near the Kimberley coast during March 2016, with a few sites in the west Kimberley and east Pilbara recording their driest March for over 20 years as no tropical lows impacted northern WA during the month. In contrast, above average to very much above average rainfall was observed in southern and eastern parts of the State, including the South West Land Division (SWLD). For WA as a whole, rainfall in March 2016 was close to the long-term average. The SWLD as a whole recorded above average rainfall, with several sites recording their wettest March on record, and many others recording their wettest March for over 20 years. Most of the March rainfall in the SWLD fell during the 6-day period to Easter Sunday (22nd to 27th), as a number of cloudbands of tropical origin passed through the region and produced widespread moderate to heavy rainfall. Several locations in the SWLD registered their highest March daily rainfall on record during this period. Ravensthorpe in the Southeast Coastal district recorded a daily total of 55.0 mm on the 23rd, a new daily rainfall record for the site in March, and a monthly total of 163.3 mm for March, easily exceeding its previous March record of 126.1 mm. Ravensthorpe also received over 20 mm on each of three consecutive days between the 22nd and 24th, which was only the third occurrence of such a wet spell at the site for any month in its 110 years of daily rainfall recordings. The previous two occurrences were 16-18 April 1919 and 22-24 January 2000.

Mean maximum temperatures in March 2016 were above to very much above average over most of the northern half of the State, as well as near the southwest coastal strip, with a few sites in the Kimberley and Pilbara recording their warmest March on record, and Wittenoom recorded its warmest March for 57 years. Most of the southern half of the State had near average mean maximum temperatures, though below average mean maxima were recorded in southeastern parts. For WA as a whole, the mean maximum temperature was about 1 °C above the long-term average.

Unusually hot days were recorded in the Kimberley, Pilbara, Northern Interior and Southern Interior at the start of March, with daily maximum temperatures in the low-to-mid forties, and several sites experienced their hottest day in March on record. Mardie recorded the highest temperature in Australia for March 2016 with 47.0 °C on the 3rd. Very hot days returned to the west Kimberley towards the end of month, with a number of coastal sites reporting their record high temperature in March.

For most of WA, mean minimum temperatures in March 2016 were above to very much above average, with several sites mainly in northern WA observing their warmest nights in March on record. The state-wide mean minimum temperature was 1.7 °C above the long-term average, and ranked as the second highest in March since the comparable records commenced in 1910, only behind March 2005. For the SWLD as a whole, the mean minimum temperature anomaly was +1.6 °C and also ranked as the second warmest March on record, again only behind March 2005.

Nights were abnormally warm in northern and central WA in early March, with a number of locations in the Kimberley and Pilbara recording daily minimum temperatures over 30 °C on multiple occasions, and several new records for highest minimum temperature in March were set on the 4th and 6th. Broome Airport recorded seven days in total with daily minima of 30 °C or higher in March 2016, which is the greatest number of days with daily minima at or above 30 °C on record for any month at the station. Four consecutive days with daily minima of 30 °C or higher between the 4th and 7th was also a new record, surpassing the previous high of three consecutive days at or above 30 °C from 28-30 March 2010 and 22-24 December 2005. A very warm night with daily minima in the mid-to-high twenties was observed in western and northern parts of the SWLD on the 14th and the warmth moved to eastern parts on the 15th, with Morawa Airport and Goomalling registering their record high daily minimum temperature in March during this period.

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Extremes in March 2016
Hottest day 47.0 °C at Mardie on the 3rd
Warmest days on average 42.0 °C at Marble Bar
Coolest days on average 22.6 °C at Albany
Coldest day 15.6 °C at Mount Barker on the 22nd
Coldest night 5.0 °C at Jarrahwood on the 2nd
Coolest nights on average 13.3 °C at Jarrahwood
Warmest nights on average 28.8 °C at Troughton Island
28.1 °C at Broome Airport
Warmest night 32.0 °C at Onslow Airport on the 4th
32.0 °C at Wittenoom on the 4th
Warmest on average overall 34.8 °C at Marble Bar
Coolest on average overall 18.6 °C at Shannon
Wettest overall 273.4 mm at Drysdale River Station
Wettest day 97.2 mm at Kimbolton on the 15th
Strongest wind gust 87 km/h at Morawa Airport on the 25th

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 March daily rainfall
New record
(mm)
Old
record
Years of
record
Doongin Peak 59.6 on the 27th 48.3 on the 25th in 1953 113
Ravensthorpe 55.0 on the 23rd 52.0 on the 15th in 2013 110
Lancelin 46.4 on the 26th 32.0 on the 19th in 1992 51
Mordetta 43.7 on the 27th 28.2 on the 19th in 1999 45
Lake Nammen 62.2 on the 26th 42.8 on the 23rd in 2010 44
Nalyerlup 40.0 on the 23rd 39.0 on the 20th in 1993 33
Gingin Aero 49.6 on the 27th 30.2 on the 28th in 2005 20
Ludlow 30.6 on the 27th 29.0 on the 17th in 1992 20
York 51.5 on the 27th 48.8 on the 30th in 1997 20



Record highest March total rainfall
New record
(mm)
Old
record
Years of
record
Average for
March
Ravensthorpe 163.3 126.1 in 2013 115 33.0
Goomalling 120.0 94.8 in 1971 113 18.5
Tambellup 112.6 106.1 in 1934 106 21.2
Pearce RAAF 101.8 86.2 in 1990 61 16.5
Chesalon 125.2 118.4 in 1993 50 30.8
Mordetta 86.1 57.0 in 2003 45 15.6
Lake Nammen 86.4 77.6 in 2010 43 17.9
Gibb Rock 105.0 89.0 in 1999 35 23.5
Nunile 79.6 63.4 in 1999 26 18.3
Jacup 107.4 74.0 in 1997 22 33.2
Worsley Downs 75.1 50.2 in 2013 22 19.5
Yourdamung Lake 85.2 71.0 in 1998 22 20.3
Hopetoun North 121.6 81.0 in 2013 20 34.3

Highest March total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
March
Ardath 108.0 129.0 in 1927* 20.9
Gingin 84.0 231.1 in 1934* 17.9
Wattening 105.2 136.4 in 1942 18.9
Riverdale 80.4 93.7 in 1943* 21.2
Bolgart 119.9 180.2 in 1934* 21.4
Chillinup 91.8 113.5 in 1942* 25.2
Bungulla 80.3 86.3 in 1953 17.2
Shackleton 127.0 145.8 in 1927* 23.1
Beverley 60.8 63.0 in 1971 16.7
Cherry Tree 79.6 89.3 in 1971 20.2
Coodernuppin 75.4 115.4 in 1971 19.5
Doongin Peak 76.4 99.6 in 1971 17.8
Kellerberrin 88.2 128.9 in 1971 21.2
King Rocks 105.0 106.0 in 1971 22.7
Lancelin 60.8 69.1 in 1971 15.7
Nangeenan 90.0 152.5 in 1971 20.6
Northam 74.3 167.9 in 1971 18.7
Spring Valley 80.6 158.4 in 1971 20.0
Tammin 70.0 116.6 in 1971 19.7
Ygnattering 80.0 141.0 in 1971 17.6
Belka 106.4 135.9 in 1971* 22.1
Fort Hill 144.2 171.0 in 1971* 23.4
Quairading 78.2 93.7 in 1971* 19.8
Wyalkatchem 128.4 165.5 in 1971* 20.0
Toodyay 73.0 75.0 in 1983* 20.0
Mount Helena 91.8 107.8 in 1990 24.7
Allan Rocks 81.6 91.4 in 1992 23.2
Gidgegannup 96.6 106.4 in 1990* 20.9
Graham Rock 77.4 142.4 in 1992 22.6
Hyden 85.6 108.3 in 1992 20.9
Lake Carmody 122.9 144.0 in 1992 21.8
Amery Acres 72.8 137.3 in 1971* 18.0
Badgebup 60.0 90.0 in 1993 21.0
Bindoon 71.8 87.9 in 1971* 14.9
Darkan 85.6 114.6 in 1993 18.2
Dellyanine 96.4 111.6 in 1993 20.4
Greenbushes 65.6 99.2 in 1993 26.6
Hines Hill 86.0 98.0 in 1992* 21.9
Kondinin 62.5 68.8 in 1993 20.6
Swanara 78.6 118.6 in 1992* 19.1
Balingup 62.8 86.6 in 1993* 23.4
Boscabel 85.0 96.4 in 1993* 23.6
Collie 83.5 142.0 in 1993* 23.8
Jerramungup 86.2 87.4 in 1993* 26.6
Kulin 77.2 112.0 in 1993* 21.6
Kojonolokan Hills 90.6 154.0 in 1993* 19.3

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





Lowest March total rainfall for at least 20 years
Observed
(mm)
Most recent
lower
Average for
March
Cygnet Bay 9.6 2.8 in 1991* 164.1
Bidyadanga 2.9 0.0 in 1993 95.8
Newman Aero 0.2 0.0 in 1996 41.5

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




Record highest March temperature
New record
(°C)
Old
record
Years of
record
Average for
March
Giles Meteorological Office 42.2 on the 1st = 42.2 on the 6th in 1959 60 33.7
Bidyadanga 44.0 on the 25th 43.1 on the 16th in 1986 58 35.3
Onslow Airport 46.3 on the 3rd 46.0 on the 4th in 1998 50 36.0
Telfer Aero 45.2 on the 1st 45.1 on the 4th in 1985 42 37.4
Derby Aero 41.9 on the 30th 41.8 on the 2nd in 1973 31 35.2
Cygnet Bay 39.5 on the 25th 38.0 on the 20th in 2005 29 33.7



Record lowest March daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
March
Southern Cross Airfield 17.2 on the 27th 18.1 on the 1st in 2013 20 30.5



Record highest March mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
March
Telfer Aero 41.3 41.2 in 1986 41 37.4
Troughton Island 33.8 33.6 in 2010 37 32.0
Derby Aero 38.0 = 38.0 in 2010 30 35.2
Cygnet Bay 36.5 35.7 in 2010 28 33.7
Curtin Aero 39.1 38.2 in 2010 24 36.1
Mount Elizabeth 34.3 34.2 in 1998 22 32.5

Highest March mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
March
Wittenoom 40.2 40.6 in 1959 36.6
Christmas Island Aero 29.8 30.2 in 1983* 28.2

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




Record highest March daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
March
Broome Airport 30.6 on the 6th 30.5 on the 30th in 2010 77 25.4
Bidyadanga 30.0 on the 11th = 30.0 on the 30th in 2010 58 24.9
Onslow Airport 32.0 on the 4th 30.5 on the 20th in 2014 50 24.1
Christmas Island Aero 26.2 on the 11th 26.1 on the 19th in 1996 43 23.0
Troughton Island 30.2 on the 4th 30.0 on the 31st in 2010 38 26.5
Goomalling 26.5 on the 15th 26.0 on the 8th in 1969 37 15.6
Derby Aero 29.5 on the 6th 29.1 on the 1st in 2005 31 25.0
Cygnet Bay 29.2 on the 17th 29.1 on the 19th in 2004 29 24.5
Mount Elizabeth 25.5 on the 6th 24.2 on the 8th in 2004 23 20.5
Morawa Airport 28.1 on the 14th 28.0 on the 13th in 2015 20 17.9



Record highest March mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
March
Wittenoom 27.2 26.8 in 1959 62 24.3
Bidyadanga 27.8 27.7 in 1959 57 24.9
Mandora 26.2 25.8 in 1973 53 24.0
Christmas Island Aero 24.2 = 24.2 in 2010 42 23.0
Telfer Aero 27.8 26.4 in 1992 41 24.0
Troughton Island 28.8 28.4 in 2010 37 26.5
Derby Aero 27.1 26.2 in 1973 30 25.0
Doongan 23.3 22.8 in 2010 27 21.9
Curtin Aero 25.7 25.0 in 1993 24 24.1
Forrest 16.2 = 16.2 in 2013 23 14.4
Mount Elizabeth 22.7 21.8 in 2004 22 20.5

Highest March mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
March
Broome Airport 28.1 28.5 in 1959 25.4
Northam 17.3 17.5 in 1980* 15.4
Kununurra Aero 25.9 26.1 in 1988 24.2
Warburton Airfield 22.1 22.3 in 1971* 20.0

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




Record highest March mean temperature
New record
(°C)
Old
record
Years of
record
Average for
March
Broome Airport 31.6 = 31.6 in 2010 76 29.7
Wittenoom 33.7 = 33.7 in 1959 62 30.5
Bidyadanga 32.0 31.8 in 1986 57 30.1
Christmas Island Aero 27.0 26.6 in 1983 42 25.6
Telfer Aero 34.6 33.1 in 1991 41 30.7
Troughton Island 31.3 31.0 in 2010 37 29.2
Derby Aero 32.6 31.9 in 2010 30 30.1
Cygnet Bay 31.5 30.5 in 1992 28 29.1
Doongan 29.2 = 29.2 in 2002 27 27.5
Curtin Aero 32.4 31.4 in 2010 24 30.1
Mount Elizabeth 28.5 27.8 in 2015 22 26.5

Highest March mean temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
March
Kununurra Aero 31.7 31.9 in 1992 29.9



Summary statistics for March 2016
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
March
2016
Diff
from
average
Highest for
March
2016
Mean for
March
2016
Diff
from
average
Lowest for
March
2016
Total for
March
2016
Average
for
March
Rank of
March
2016
Fraction of
March
average
North Kimberley (district 01)
Doongan 35.2 +2.0 37.0 2nd 23.3 +1.4 20.0 26th 223.6 204.0 average 110%
Kalumburu 36.7 +3.0 38.3 29th 24.7 +1.2 21.0 26th 155.6 221.1 average 70%
Mount Elizabeth 34.3 +1.8 36.4 2nd 22.7 +2.2 18.8 26th 124.8 162.0 average 77%
Troughton Island 33.8 +1.8 35.1 1st 28.8 +2.3 25.1 15th 50.8 134.8 average 38%
Wyndham Aero 38.1 +2.2 40.8 4th 27.5 +2.0 24.9 16th 90.2 145.8 average 62%
East Kimberley (district 02)
Argyle Aerodrome 37.1 +1.6 41.2 3rd 26.2 +1.5 23.1 16th 70.8 151.3 average 47%
Halls Creek Airport 37.0 +1.6 40.3 4th 24.6 +1.8 21.9 6th 130.0 82.8 high 157%
Kununurra Aero 37.6 +2.0 40.3 2nd 25.9 +1.7 22.5 10th 120.6 149.6 average 81%
Warmun 38.0 +2.1 42.0 4th 25.1 +1.9 21.5 25th 146.4 116.9 high 125%
West Kimberley (district 03)
Bidyadanga 36.2 +0.9 44.0 25th 27.8 +2.9 24.6 20th 2.9 95.8 v low 3%
Broome Airport 35.0 +1.1 40.8 31st 28.1 +2.7 24.2 14th 10.8 98.9 low 11%
Curtin Aero 39.1 +3.0 41.8 31st 25.7 +1.6 22.7 7th 6.6 154.4 v low 4%
Cygnet Bay 36.5 +2.8 39.5 25th 26.3 +1.8 22.5 4th 9.6 164.1 v low 6%
Derby Aero 38.0 +2.8 41.9 30th 27.1 +2.1 23.4 7th 55.2 131.7 low 42%
Fitzroy Crossing Aero 39.4 +2.7 41.7 1st 25.8 +1.9 23.1 23rd 88.8 116.5 average 76%
De Grey (district 04)
Bedout Island 34.0   36.3 7th 27.8   25.5 21st
Karratha Aero 37.8 +1.8 42.8 26th 27.0 +1.2 23.4 18th 0.2 48.0 low 0%
Legendre Island 34.0   40.5 3rd 26.9   24.6 18th
Mandora 38.0 +1.1 44.2 25th 26.2 +2.2 21.9 31st 0.2 72.9 low 0%
Marble Bar 42.0 +4.3 46.5 2nd 27.7 +2.8 22.8 19th
Port Hedland Airport 38.3 +1.6 43.6 11th 26.0 +1.5 22.3 21st 2.2 47.8 low 5%
Roebourne Aero     45.0 2nd 26.5 +1.3 23.3 19th 0 39.6 v low 0%
Fortescue (district 05)
Barrow Island Airport 33.4 +0.2 39.0 4th 26.1 -0.4 24.0 20th 0 58.7 v low 0%
Learmonth Airport 37.4 +1.1 43.2 4th 22.4 -0.6 18.4 19th 1.4 42.0 average 3%
Mardie 38.3 +0.7 47.0 3rd 24.8 +0.6 21.1 19th 0 49.2 lowest 0%
Onslow Airport 36.8 +0.8 46.3 3rd 24.5 +0.4 21.2 19th 0 73.2 lowest 0%
Wittenoom 40.2 +3.6 43.5 3rd 27.2 +2.9 19.8 19th 3.0 69.3 v low 4%
West Gascoyne (district 06)
Carnarvon Airport 30.6 -1.0 39.2 9th 22.4 +0.3 18.5 30th 1.0 17.1 average 6%
Denham 30.2 -0.9 40.0 9th 22.4 +0.3 19.0 28th 0.4 15.1 average 3%
Emu Creek Station 39.4 +1.0 43.5 25th 23.6 -0.2 19.2 18th 5.8 41.1 low 14%
Murchison 36.6 +1.4 42.1 2nd 21.4 +1.3 18.6 22nd 0.2 32.2 v low 1%
Shark Bay Airport 32.6 -1.5 42.8 9th 21.1 -0.1 17.9 31st 0.6 22.4 average 3%
East Gascoyne (district 07)
Newman Aero 38.8 +3.9 42.0 2nd 25.0 +3.4 20.9 29th 0.2 41.5 v low 0%
Paraburdoo Aero 39.4 +2.8 42.9 3rd 24.7 +1.5 20.9 20th 7.4 49.7 low 15%
Murchison (district 07A)
Meekatharra Airport 35.2 +1.0 40.7 12th 22.1 +0.8 16.3 29th 44.8 29.5 high 152%
Mount Magnet Aero 34.2 +1.3 41.1 10th 21.6 +1.5 15.8 29th 54.4 38.9 average 140%
Paynes Find 33.2 +0.3 40.7 10th 19.9 +1.8 13.4 30th 69.0 25.5 high 271%
North Coast (district 08)
Dalwallinu 31.1 -0.4 38.9 10th 18.1 +1.7 12.7 30th 84.6 26.9 v high 314%
Geraldton Airport 31.2   39.1 24th 19.1   14.1 2nd 13.2
Kalbarri 31.1 -1.5 39.3 7th 19.7 +0.5 14.5 31st 5.9 13.1 average 45%
Morawa Airport 33.9 +0.7 40.8 10th 19.9 +2.0 16.0 31st 39.0 18.9 high 206%
Mullewa 34.8 +1.1 41.5 10th 19.7 +1.3 12.2 4th 11.4 19.6 average 58%
North Island 27.6 -0.6 33.1 7th 21.8 -0.1 19.7 28th 11.0 7.1 high 155%
Wongan Hills 30.3 -0.6 38.5 13th 17.6 +1.2 12.5 29th 93.0 20.8 v high 447%
Central Coast (district 09)
Badgingarra Research Stn 31.5 -0.4 40.6 14th 17.8 +1.4 13.7 29th 18.4 16.6 high 111%
Bickley 27.8 -0.2 37.2 14th 15.8 +1.2 11.6 28th 48.0 25.9 high 185%
Garden Island HSF 26.7 -0.5 39.5 14th 19.1 +0.9 15.2 30th 21.8 15.2 high 143%
Gingin Aero 30.8 +0.1 41.2 14th 16.3 +1.1 11.3 29th 106.6 20.6 v high 517%
Gosnells City 30.9 +0.4 40.3 13th 18.8 +1.6 14.4 4th 24.8 16.9 high 147%
Jandakot Aero 29.6 -0.1 40.7 14th 17.0 +1.6 11.7 29th 18.6 16.2 high 115%
Jurien Bay 29.4 -0.1 42.5 14th 17.9 +1.3 12.3 29th 57.0 14.9 v high 383%
Lancelin 28.7 +0.1 42.0 14th 17.8 +1.1 13.5 28th 60.8 15.7 v high 387%
Pearce RAAF 31.1 +0.5 40.9 14th 17.1 +1.1 12.2 2nd 101.8 16.5 highest 617%
Perth Airport 30.0 +0.3 40.1 14th 17.5 +1.6 11.8 31st 19.8 16.3 high 121%
Perth Metro 29.6 0.0 39.8 14th 17.9 +1.3 12.7 29th 16.8 19.5 average 86%
Rottnest Island 26.4 +0.3 39.4 14th 19.4 +0.7 16.0 28th 24.0 14.3 high 168%
Swanbourne 28.1 -0.9 40.7 14th 18.5 +1.2 14.0 28th 26.6 21.6 high 123%
South Coast (district 09A)
Albany 22.6 +0.3 36.0 15th 16.6 +1.9 11.6 2nd 44.2 38.4 high 115%
Albany Airport 23.4   37.6 15th 14.6   8.4 2nd 60.8
Bridgetown 26.8 -0.7 36.3 14th 13.8 +2.1 5.4 2nd 50.6 20.6 v high 246%
Bunbury 27.6 -0.2 37.8 14th 15.3 +1.1 8.3 1st 65.8 17.9 v high 368%
Busselton Aero 27.7 -0.2 36.6 14th 14.2 +0.9 7.6 1st 44.0 17.5 v high 251%
Cape Leeuwin 22.8 +0.1 27.8 14th 17.7 +1.0 14.5 2nd 6.4 27.9 low 23%
Cape Naturaliste 25.8 +1.3 35.1 13th 15.7 +0.7 11.4 2nd 30.4 22.7 high 134%
Collie East 27.7 -0.7 36.7 14th 13.7 +1.8 7.8 2nd 84.4 18.1 v high 466%
Donnybrook 29.2 +1.2 38.6 14th 15.7 +2.8 10.0 1st 63.6 24.9 high 255%
Dwellingup 28.2 +1.2 37.5 14th 15.0 +2.0 10.2 29th 27.4 26.3 average 104%
Esperance 24.5 -0.7 38.4 10th 16.3 +1.2 10.3 29th 62.8 30.5 high 206%
Esperance Aero 26.1 +0.1 37.7 10th 15.6 +1.1 10.5 29th 71.8 34.5 high 208%
Hopetoun North 22.2 -2.6 38.1 10th 13.6 -0.5 8.3 19th 121.6 34.3 highest 355%
Jarrahwood 28.0 +0.3 37.4 14th 13.3 +1.7 5.0 2nd 50.0 20.5 v high 244%
Mandurah 28.0 +0.2 39.6 13th 18.6 +0.4 15.3 17th 23.6 16.7 high 141%
Manjimup 25.7 +0.9 36.7 14th 13.9 +1.4 9.0 2nd 28.6 29.8 average 96%
North Walpole 22.9 -1.1 33.9 15th 14.9 +0.6 9.9 2nd 33.4 33.5 average 100%
Rocky Gully 24.4 -0.9 35.1 15th 13.5 +1.1 7.3 2nd 47.0 35.0 high 134%
Shannon 23.6 -1.4 35.1 14th 13.7 +1.3 7.2 2nd 34.6 31.5 average 110%
Witchcliffe 25.6 -0.2 36.4 14th 13.9 +0.9 7.9 2nd 16.0 23.1 average 69%
North Central (district 10)
Bencubbin 30.0 -0.8 38.7 10th 18.0 +1.8 12.2 29th 5.1 23.2 low 22%
Cunderdin Airfield 30.5 -0.5 38.6 10th 17.2 +1.9 12.4 29th 82.0 19.6 v high 418%
Kellerberrin 30.6 +0.3 39.0 10th 16.9 +1.8 13.0 31st 88.2 21.2 v high 416%
Merredin 30.2 -0.1 39.2 10th 17.8 +1.6 12.8 30th 76.4 21.3 v high 359%
Northam 30.1 -0.7 38.2 9th 17.3 +1.9 12.5 30th 74.3 18.7 v high 397%
York 30.2 -0.5 38.2 14th 16.1 +1.9 11.5 31st 66.0 18.9 v high 349%
South Central (district 10A)
Beverley 30.3 -0.5 37.8 14th 16.6 +1.9 12.0 28th 60.8 16.7 v high 364%
Brookton 29.3 -0.2 37.6 14th 15.9 +1.5 10.5 31st 54.7 18.3 v high 299%
Corrigin 28.9 0.0 37.0 15th 16.0 +1.7 10.9 29th 48.0 21.3 high 225%
Hyden 29.4 -0.6 37.5 3rd 16.1 +1.9 12.1 30th 85.6 20.9 v high 410%
Jacup 25.5 -0.4 37.1 10th 13.6 +1.1 7.7 2nd 107.4 33.2 highest 323%
Katanning 26.3 -1.0 35.6 14th 14.2 +1.3 9.7 2nd 86.4 21.0 v high 411%
Lake Grace 27.4 -0.7 36.2 10th 15.6 +1.2 10.5 28th 54.4 21.0 v high 259%
Narembeen 29.6 -0.7 37.9 10th 17.1 +2.2 12.1 29th
Narrogin 27.6 +0.2 36.6 14th 15.1 +2.0 10.6 29th 70.0 21.2 v high 330%
Newdegate Research Station 27.7 -0.4 37.3 10th 14.3 +1.7 9.3 29th 82.6 22.2 v high 372%
Ongerup 26.1 +0.1 35.2 15th 14.9 +1.7 9.6 2nd 56.4 22.3 v high 253%
Pingelly 29.0 +0.6 36.4 14th 15.8 +1.1 11.4 17th 37.0 17.4 high 213%
Ravensthorpe 25.7 -0.9 37.0 10th     10.9 19th 163.3 33.0 highest 495%
Wagin 27.9 +0.2 36.0 15th     10.9 2nd 71.8 20.6 v high 349%
Wandering 28.4 -0.6 37.2 15th 14.6 +2.2 9.1 29th 1.4 15.9 low 9%
Eucla (district 11)
Balladonia 27.2 -0.9 35.6 16th 15.9 +2.3 10.5 19th 80.2 28.3 v high 283%
Eucla 24.1 -1.0 33.1 1st 17.0 +1.0 9.4 30th 33.0 22.9 high 144%
Eyre 25.6 -0.1 35.4 16th 15.2 +1.0 5.7 19th 41.8 27.4 high 153%
Forrest 28.4 -0.8 35.4 11th 16.2 +1.8 9.5 30th 34.4 25.6 average 134%
Red Rocks Point 23.7 -0.6 30.8 31st 18.5 +1.6 11.4 30th 27.6 23.6 high 117%
South East (district 12)
Bulga Downs 32.8 +0.2 40.9 11th 19.5 +1.3 12.2 30th 54.2 25.4 high 213%
Kalgoorlie-Boulder Airport 27.9 -1.5 38.2 3rd 17.1 +1.1 11.8 30th 28.0 25.8 high 109%
Laverton Aero 30.1 -0.3 38.8 3rd 18.9 +0.7 13.2 30th 102.6 40.4 v high 254%
Leinster Aero 32.5 +1.1 40.0 3rd 20.1 +1.2 14.3 30th 45.2 31.1 high 145%
Leonora Aero 30.6   40.5 3rd 19.6   12.9 30th 96.4 35.9 v high 269%
Munglinup West 26.7 -0.4 38.0 10th 14.9 +1.1 10.4 29th 129.0 36.4 v high 354%
Norseman Aero 28.1 -0.5 37.1 10th 15.8 +1.8 7.5 29th 25.4 31.7 average 80%
Salmon Gums Res.Stn. 27.3 0.0 37.6 10th 14.9 +2.3 6.5 29th 51.8 26.5 high 195%
Southern Cross Airfield 29.9 -0.6 39.8 3rd 17.3 +2.1 11.3 30th 32.0 36.0 average 89%
Yeelirrie     40.5 11th 19.2 +1.0 13.3 30th 44.6 32.6 high 137%
North East (district 13)
Carnegie 36.0 +2.0 41.4 3rd     15.6 31st 11.7 33.4 average 35%
Giles Meteorological Office 35.0 +1.3 42.2 1st 21.5 +1.0 14.1 31st 90.4 36.5 high 248%
Telfer Aero 41.3 +3.9 45.2 1st 27.8 +3.8 23.6 20th 0.4 72.8 low 1%
Warburton Airfield 35.6 +1.6 43.4 1st 22.1 +2.1 15.7 30th 36.4 30.5 high 119%
Offshore Islands (district 200)
Browse Island 31.8   33.8 26th 28.6   25.5 30th
Christmas Island Aero 29.8 +1.6 30.6 3rd 24.2 +1.2 22.3 24th 339.4 302.7 average 112%
Cocos Island Airport 30.8 +0.8 32.1 13th 26.2 +1.0 23.8 18th 426.6 234.0 v high 182%
Rowley Shoals 30.6   33.6 28th 28.7   25.6 10th
Note: Observations for “Perth Metro” are taken from the current site at Mount Lawley (Bureau number 009225).
Comparisons are made against combined data from the current site (which opened in early 1993) and the previous site at Perth Regional Office (009034), which ran from 1876 to early 1992.

Notes

The Monthly 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.

A climate summary is generally published on the first working day of each month.

This statement has been prepared based on information available at 10 am on Friday 1 April 2016. 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.

Observations for “Perth Metro” are taken from the current site at Mount Lawley (Bureau number 009225).
Comparisons are made against combined data from the current site (which opened in early 1993) and the previous site at Perth Regional Office (009034), which ran from 1876 to early 1992.

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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