Western Australia in spring 2017: A very warm spring

Mean maximum temperatures in spring 2017 were above average for most of Western Australia, and it was the tenth-warmest spring on record for WA as a whole. Mean minimum temperatures were mostly above average, except in the northeast. The state-wide averaged mean minimum temperature for spring was the sixth-warmest on record. Rainfall was below average near the southwest and southeast coast, while rainfall was mostly near average to above average in the northern half of WA. Overall rainfall was above average for the State as a whole.

Above average rainfall mostly in the northern half

  • Rainfall was above average for WA and wettest since 2014
  • Rainfall was near average for the South West Land Division (SWLD) and wettest since 2014
  • Record high spring daily rainfall was reported in the Gascoyne in early September as a cloudband impacted the region, in the South Coastal in late September as a result of a cut-off low, and in the Central Wheat Belt on 14 October due to severe thunderstorms
  • A few sites in the Gascoyne and Central Wheat Belt had either their wettest spring on record or wettest spring for at least 34 years

Warmer days and nights for most WA

  • Mean maximum temperature was 1.3 °C above average, the tenth-highest in spring on record since comparable records commenced in 1910
  • Mean minimum temperature for WA was 0.9 °C above average, which was the sixth-highest in spring on record
  • Mean maximum temperature for the SWLD was 1.4 °C above average, which was the 14th-highest in spring on record
  • Mean minimum temperature for the SWLD was 1.4 °C above average, which was the sixth in spring on record
  • Derby Aerodrome recorded its highest spring mean maximum temperature on record, partly due to a record hot October, including its record high spring temperature with 44.8 °C on 30 October
  • Murchison had its lowest spring maximum temperature on record with 16.7 °C on 7 September in cloudy and wet conditions
  • Eyre on the Eucla coast had its lowest spring temperature on record with -5.1 °C on 15 September, which was also a new record for WA

Further information

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Extremes in spring 2017
Hottest day 45.1 °C at Marble Bar on 22 Nov
Warmest days on average 40.0 °C at Fitzroy Crossing Aero
Coolest days on average 19.1 °C at Albany
Coldest day 10.1 °C at Rocky Gully on 25 Sep
Coldest night -5.1 °C at Eyre on 14 Sep
Coolest nights on average 8.1 °C at Wandering
Warmest nights on average 27.0 °C at Browse Island
24.3 °C at Truscott
Warmest night 30.5 °C at Bidyadanga on 20 Oct
Warmest on average overall 31.5 °C at Wyndham Aero
Coolest on average overall 14.1 °C at Shannon
Wettest overall 343.0 mm at North Walpole
Driest overall 0 mm at Cygnet Bay and others
Wettest day 88.4 mm at Mount William on 21 Sep
Strongest wind gust 139 km/h at Albany Airport on 21 Sep

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 spring daily rainfall
New record
(mm)
Old
record
Years of
record
Tammin 47.4 on 14 Oct 43.1 on 17 Nov 1983 107
Boodjerakine 52.0 on 14 Oct 48.6 on 17 Nov 1983 105
Yorkrakine 49.0 on 14 Oct 44.0 on 17 Nov 1983 98
Bungulla 45.0 on 14 Oct 40.0 on 17 Nov 1983 90
Karralea 64.2 on 25 Sep 62.4 on 22 Sep 2005 42
Nalyerlup 57.5 on 26 Sep 45.0 on 30 Sep 2003 35
Mount Magnet Aero 25.6 on 8 Sep 23.0 on 9 Sep 2006 23
Steep Point 24.0 on 7 Sep 9.8 on 5 Sep 1997 22



Record highest spring total rainfall
New record
(mm)
Old
record
Years of
record
Average for
spring
Yorkrakine 118.1 113.0 in 1983 102 52.1
Murchison 56.2 51.4 in 2001 30 20.3

Highest spring total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
spring
Tammin 112.0 113.7 in 1973 58.3
Doongin Peak 108.0 113.7 in 1983 56.8
Carey Downs 51.0 =51.0 in 1982* 10.7

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




Record highest spring temperature
New record
(°C)
Old
record
Years of
record
Average for
spring
Derby Aero 44.8 on 30 Oct 44.6 on 13 Nov 2004 33 36.9



Record lowest spring daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
spring
Murchison 16.7 on 7 Sep 16.8 on 4 Sep 1998 28 30.4



Record highest spring mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
spring
Derby Aero 38.4 38.0 in 2016 32 36.9



Record highest spring daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
spring
Kalgoorlie-Boulder Airport 26.6 on 27 Nov 25.7 on 28 Oct 2009 77 11.1
Bidyadanga 30.5 on 20 Oct 29.0 on 19 Nov 2016 59 20.9
Paraburdoo Aero 29.6 on 24 Nov 29.3 on 16 Nov 2015 22 17.8



Record lowest spring temperature
New record
(°C)
Old
record
Years of
record
Average for
spring
Eyre -5.1 on 14 Sep -5.0 on 14 Oct 2013 33 9.9



Record highest spring mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
spring
Badgingarra Research Stn 11.2 = 11.2 in 2015 49 9.8



Summary statistics for spring 2017
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
spring
2017
Diff
from
average
Highest for
spring
2017
Mean for
spring
2017
Diff
from
average
Lowest for
spring
2017
Total for
spring
2017
Average
for
spring
Rank of
spring
2017
Fraction of
spring
average
North Kimberley (district 01)
Kalumburu 37.2 +0.6 40.6 16 Oct 22.2 +0.1 9.8 1 Sep 181.8 126.6 high 144%
Mount Elizabeth 35.7 +0.3 40.7 29 Oct 18.3 -0.3 5.6 1 Sep 254.8 119.7 v high 213%
Troughton Island 32.4 +0.7 34.2 30 Nov 26.8 +0.7 22.0 1 Sep 31.2 13.6 high 229%
Truscott 34.6 +0.3 37.9 3 Nov 24.3 +0.1 16.8 1 Sep 104.2 50.8 high 205%
Wyndham Aero 39.2 +0.2 43.2 18 Oct 23.8 -0.6 13.1 1 Sep 140.4 82.7 high 170%
East Kimberley (district 02)
Argyle Aerodrome 38.2 +0.3 42.5 28 Oct 24.2 -0.3 16.0 1 Sep 92.6 96.6 average 96%
Halls Creek Airport 37.0   42.2 26 Oct 20.2   8.4 1 Sep 51.8
Kununurra Aero 38.7 +0.6 43.3 18 Oct 22.1 -0.8 11.1 1 Sep 71.8 79.5 average 90%
Warmun 38.2 +0.1 43.5 28 Oct 21.5 -0.9 10.3 1 Sep
West Kimberley (district 03)
Broome Airport 33.9 +1.1 43.4 30 Oct 23.4 +1.3 12.9 18 Sep 12.4 12.0 high 103%
Curtin Aero 38.9 +0.4 44.0 19 Oct 22.0 +0.6 12.1 10 Sep 38.6 30.2 average 128%
Cygnet Bay 34.9 +0.8 37.6 30 Nov     12.4 18 Sep 0 8.4 lowest 0%
Derby Aero 38.4 +1.5 44.8 30 Oct 22.7 0.0 12.9 18 Sep 26.8 16.5 high 162%
Fitzroy Crossing Aero 40.0 +0.6 44.6 20 Oct 22.3 -0.1 11.3 1 Sep 26.4 47.6 low 55%
De Grey (district 04)
Bedout Island 31.1   37.4 30 Oct 24.3   21.3 13 Sep
Karratha Aero 33.5 +0.2 41.2 1 Nov 20.7 +0.4 14.2 30 Sep 0 3.2 lowest 0%
Legendre Island 30.3   37.3 24 Oct 22.7   18.7 27 Sep
Mandora 36.0 +0.5 44.6 31 Oct 20.1 +1.2 9.6 10 Sep 1.2 8.6 average 14%
Marble Bar 38.6 +0.6 45.1 22 Nov 21.2 +0.4 13.1 1 Sep 5.6 16.6 average 34%
Pardoo Station       20.0 +0.7 12.5 12 Sep 0 6.8 lowest 0%
Port Hedland Airport 35.3 +0.8 44.0 20 Oct 20.0 +1.5 13.8 29 Sep 4.6 4.8 high 96%
Roebourne Aero 36.8 +0.3 43.7 5 Nov 19.2 0.0 11.0 28 Sep 0 6.5 v low 0%
Fortescue (district 05)
Barrow Island Airport 29.3 +0.3 39.2 1 Nov 21.8 +0.4 17.3 1 Oct 1.8 4.7 average 38%
Mardie 34.4 -0.2 45.0 22 Nov 18.2 +0.8 11.1 30 Sep 0 3.7 lowest 0%
Onslow Airport 32.9 +0.5 43.1 22 Nov 19.0 +1.2 13.5 27 Sep 0.4 5.0 low 8%
Thevenard Island 29.8 +0.5 39.1 22 Nov 20.8 +0.4 16.0 1 Oct 0.6 4.0 v low 15%
Wittenoom 36.4 +1.5 42.4 22 Nov 21.1 +0.7 13.3 3 Sep 8.0 16.6 average 48%
West Gascoyne (district 06)
Carnarvon Airport 27.0 +0.9 40.9 23 Nov 17.1 +0.8 10.1 4 Sep 31.8 15.2 v high 209%
Denham 25.8 0.0 38.0 23 Nov 17.3 +0.5 10.5 3 Sep 12.8 17.0 average 75%
Murchison 30.6 +0.2 42.5 24 Nov 14.6 +1.4 4.0 5 Sep 56.2 20.3 highest 277%
Shark Bay Airport 28.3 0.0 40.1 23 Nov 15.5 +0.3 9.4 27 Sep 39.0 16.3 v high 239%
East Gascoyne (district 07)
Newman Aero 35.0 +0.7 41.5 3 Nov 17.1 +0.1 4.7 4 Sep 40.0 23.3 high 172%
Paraburdoo Aero 35.7 +0.5 42.8 24 Nov 18.5 +0.7 10.5 27 Sep 22.8 15.9 high 143%
Murchison (district 07A)
Meekatharra Airport 31.1 +1.5 40.3 2 Nov 16.1 +0.9 5.0 3 Sep 14.4 22.5 average 64%
Mount Magnet Aero 29.5 +0.6 40.9 2 Nov 14.9 +0.6 4.1 3 Sep 52.4 27.3 high 192%
Paynes Find     40.1 26 Nov 12.9 +1.2 1.0 3 Sep 60.8 36.1 high 168%
North Coast (district 08)
Dalwallinu 26.5 +0.5 38.6 11 Nov 10.8 +0.9 2.1 3 Sep 56.0 51.4 average 109%
Geraldton Airport 26.2   38.6 6 Nov 12.3   3.1 3 Sep
Kalbarri 27.1 +0.9 39.2 6 Nov 14.1 +1.3 7.6 7 Oct 39.8 45.0 average 88%
Mullewa 28.3 +1.0 39.5 24 Nov 13.4 +2.0 4.6 3 Sep 33.7 43.3 average 78%
Central Coast (district 09)
Badgingarra Research Stn 25.4 +1.0 36.9 24 Nov 11.2 +1.4 2.9 3 Sep 62.2 97.4 low 64%
Bickley 21.8 +0.6 35.5 11 Nov 10.5 +0.6 3.5 2 Sep 214.4 232.1 average 92%
Gingin Aero 25.1 +0.8 38.6 11 Nov 10.5 +1.0 1.6 4 Sep 109.6 137.1 low 80%
Jandakot Aero 24.2 +1.1 36.5 16 Nov 11.6 +1.4 2.7 27 Sep 141.6 162.6 average 87%
Lancelin 23.2 +0.5 35.5 7 Nov 12.8 +0.6 5.2 4 Oct 132.9 106.0 high 125%
Medina Research Centre     36.9 16 Nov 11.9 +0.9 2.7 15 Sep
Millendon (Swan Valley) 25.1   37.8 11 Nov 11.5   3.3 29 Sep 129.4
Pearce RAAF 25.0 +1.4 37.7 11 Nov 11.6 +1.1 2.9 29 Sep 116.0 127.7 average 91%
Perth Airport 24.7 +1.7 38.0 11 Nov 11.9 +1.3 3.4 4 Sep 109.0 142.4 low 77%
Perth Metro 24.4 +1.0 36.9 11 Nov 12.7 +0.9 4.2 4 Sep 124.2 155.0 low 80%
Rottnest Island 21.5 +0.7 33.9 7 Nov 14.6 +0.3 9.1 24 Sep 116.2 104.2 average 112%
Swanbourne 23.0 +0.5 35.5 7 Nov 13.6 +0.9 6.8 2 Sep 131.2 150.2 average 87%
South Coast (district 09A)
Albany 19.1 +0.4 26.9 9 Nov 11.9 +1.2 5.2 14 Sep 217.1 225.0 average 96%
Albany Airport 20.0   30.4 9 Nov 9.9   1.9 14 Sep
Bridgetown 21.0 +0.2 32.9 8 Nov     -1.5 13 Sep
Bunbury 22.2 +0.8 32.5 11 Nov 10.5 +0.5 1.5 2 Sep 106.4 138.6 low 77%
Busselton Aero 22.0 +0.5 33.2 10 Nov 9.9 +0.9 1.8 13 Sep 105.0 131.8 low 80%
Cape Naturaliste 21.0 +1.8 31.1 7 Nov 12.0 +0.7 6.1 4 Oct 96.2 150.9 v low 64%
Collie East 22.4 +0.6 35.6 11 Nov 8.2 +0.6 -1.5 13 Sep 117.0 162.4 low 72%
Donnybrook 23.1 +1.5 36.7 11 Nov 10.3 +1.6 1.5 2 Sep 145.5 198.7 low 73%
Dwellingup 22.0 +1.6 34.8 11 Nov 9.6 +1.3 1.7 13 Sep 217.6 256.1 average 85%
Esperance 21.1 -0.2 35.9 17 Nov 11.6 +0.6 5.9 2 Sep
Esperance Aero 22.1 +0.5 39.3 17 Nov 10.1 +0.1 4.2 24 Sep 139.8 140.5 average 100%
Jarrahwood 21.9 +0.9 34.5 11 Nov 8.2 +0.5 -1.5 13 Sep 170.2 204.1 average 83%
Mandurah 22.8 +0.9 33.1 6 Nov 14.0 +0.4 6.9 2 Sep 83.4 122.6 low 68%
Manjimup 20.6 +1.5 33.9 8 Nov 9.2 +0.6 2.5 13 Sep 171.0 229.8 low 74%
North Walpole 19.3 +0.2 29.4 9 Nov 10.4 -0.1 4.6 13 Sep 343.0 254.0 high 135%
Rocky Gully 20.0 +0.3 33.6 8 Nov 8.8 +0.5 1.5 14 Sep 181.0 190.3 average 95%
Shannon 19.2 +0.1 32.3 8 Nov 9.1 +0.5 0.8 13 Sep 229.0 249.3 average 92%
Witchcliffe 20.5 +0.6 31.2 7 Nov 10.1 +0.5 2.9 14 Sep 187.0 212.2 average 88%
North Central (district 10)
Bencubbin 25.6 +0.5 38.0 26 Nov 11.5 +1.4 2.4 3 Sep 52.4 51.2 average 102%
Cunderdin Airfield 26.2 +0.5 37.8 11 Nov 9.4 +1.0 -0.2 13 Sep 77.4 60.4 high 128%
Merredin 25.7 +1.0 37.6 11 Nov 11.1 +1.2 -1.0 3 Sep 85.0 59.1 high 144%
Northam 25.5 +1.1 37.3 11 Nov 9.7 +0.3 0.8 14 Sep 64.0 74.2 average 86%
York     28.0 16 Sep 8.5 +0.8 -1.0 14 Sep 65.2 75.3 average 87%
South Central (district 10A)
Beverley 25.5 +1.0 37.8 11 Nov 9.6 +1.1 0.2 14 Sep 58.8 74.6 average 79%
Brookton 24.3 +0.9 37.2 11 Nov 9.3 +1.3 -0.4 3 Sep 86.7 78.3 average 111%
Corrigin 24.2 +1.0 35.0 10 Nov 9.4 +0.9 -0.9 14 Sep
Hyden 25.2 +0.6 37.1 11 Nov 9.3 +0.7 -0.5 13 Sep 97.9 69.1 high 142%
Jacup 22.3 +0.5 35.6 17 Nov 8.2 +0.3 0.9 13 Sep 105.2 115.2 average 91%
Katanning 22.0 +0.1 34.4 11 Nov 8.9 +1.0 1.4 5 Sep 89.0 108.2 average 82%
Lake Grace 23.4 +0.1 35.3 11 Nov 10.1 +1.0 1.0 14 Sep 76.2 80.3 average 95%
Narembeen 25.5 +0.7 37.4 11 Nov 10.3 +1.1 1.1 13 Sep 91.3 62.1 high 147%
Narrogin 22.6 +1.1 34.4 11 Nov 9.3 +1.4 0.7 13 Sep 111.7 96.1 high 116%
Newdegate Research Station 23.4 +0.2 36.0 11 Nov 8.2 +1.0 -1.6 13 Sep 82.2 78.6 average 105%
Ongerup 21.8 +0.6 33.0 11 Nov 9.0 +0.6 0.0 13 Sep 123.8 97.6 high 127%
Pingelly     35.8 11 Nov 9.1 +0.3 1.2 13 Sep 85.7 81.2 average 106%
Ravensthorpe 22.4 0.0 38.2 17 Nov 9.9 +0.7 3.5 14 Sep 105.6 109.9 average 96%
Wagin 22.9 +0.9 36.0 11 Nov 9.3 +1.0 0.1 13 Sep 84.6 88.1 average 96%
Wandering 22.9 +0.2 35.9 11 Nov 8.1 +1.3 -0.5 14 Sep 98.8 108.2 average 91%
Eucla (district 11)
Eucla 24.0 +1.1 42.9 18 Nov 12.1 +0.8 1.5 6 Sep 64.8 58.6 average 111%
Eyre 24.9 +1.9 42.4 28 Nov 10.3 +0.4 -5.1 14 Sep 32.8 63.9 low 51%
Forrest 27.6 +0.3 40.3 18 Nov 11.5 +0.9 2.0 6 Sep 44.6 47.6 average 94%
Red Rocks Point 22.8 +0.2 42.4 18 Nov 12.6 +0.3 3.3 14 Sep 43.4 64.7 low 67%
South East (district 12)
Bulga Downs 29.9 +0.3 41.2 2 Nov 13.5 +0.1 3.4 3 Sep 28.8 26.8 average 107%
Kalgoorlie-Boulder Airport 26.7 +0.9 39.6 17 Nov 12.2 +1.1 1.3 3 Sep
Laverton Aero 29.4 +1.3 40.4 27 Nov 14.1 +0.2 2.5 3 Sep 28.2 39.7 average 71%
Leinster Aero 30.0 +0.6 39.9 27 Nov 14.8 +0.2 2.9 4 Sep 29.0 32.4 average 90%
Leonora Aero 29.4 +0.1 40.4 27 Nov 14.4 -0.1 2.3 3 Sep 20.4 38.0 low 54%
Munglinup West 22.8 -0.4 39.8 17 Nov 9.2 -0.2 3.2 13 Sep 112.6 112.2 average 100%
Norseman Aero 25.8 +0.1 40.1 17 Nov 9.5 +0.2 -1.6 13 Sep 46.8 73.1 average 64%
Salmon Gums Res.Stn. 23.8 +0.4 39.1 17 Nov 8.2 +0.4 -1.5 14 Sep 111.2 86.3 high 129%
North East (district 13)
Carnegie     41.4 21 Nov 16.3 +0.5 3.8 3 Sep 63.3 23.3 v high 272%
Giles Meteorological Office 32.4 +1.2 41.5 30 Nov 17.4 +0.7 4.4 4 Sep 75.0 54.5 high 138%
Telfer Aero 37.7 +1.2 45.0 21 Nov 21.5 +1.1 11.8 5 Sep 17.2 20.9 average 82%
Warburton Airfield 32.6 +1.1 42.2 28 Nov 16.5 +1.2 6.7 3 Sep 20.4 44.7 low 46%
Wiluna     41.0 26 Nov 14.9 +1.0 3.5 3 Sep 55.3 24.3 high 228%
Offshore Islands (district 200)
Browse Island 30.1   33.2 21 Nov 27.0   24.5 24 Nov
Varanus Island 28.7 -0.1 34.3 31 Oct     18.8 27 Sep 0.2 2.3 low 9%
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.
From 2017 on, information about Cocos and Christmas Islands can be found in the climate summary for the Remote Islands and Antarctica

Notes

The Seasonal climate summary, generally published on the first working day of each month, 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. More extensive discussion of significant weather events, along with later information and data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.

This statement has been prepared based on information available at 11 am on Friday 1 December 2017. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

In some situations, some or all of the rainfall is in the form of hail or snow. In these cases the totals given are for the water equivalent: the depth of liquid water that results from melting any frozen precipitation. There can be significant 'undercatch' of snow in strong winds, meaning the true precipitation can be higher than that reported.

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.

Where temperature area averages are mentioned, they are derived from the ACORN-SAT dataset.

Further information

Media
(03) 9669 4057
Enquiries