Sunday, 2 June 2024 - Monthly Climate Summary for Western Australia - Product code IDCKGC11R0

Western Australia in May 2024

Rainfall

• Monthly rainfall totals of 10–25 mm were recorded for most of WA, and 25–50 mm in the Central Wheat Belt and Great Southern districts, 50–100 mm in the Lower West, South Coastal and South East Coastal districts, and over 100 mm to 180 mm in the South West district.
• Rainfall was below average for much of the northern and eastern South West Land Division, and the Eucla district. Rainfall was above average in the Kimberley.
• WA area-averaged May rainfall was 14.9 mm, which was 44% below the 1961–1990 average May rainfall of 26.4 mm; May 2024 was wetter than May 2023 (3 mm and the driest May on record) but drier than May 2022(31.2 mm).
• The South West Land Division (SWLD) area-averaged May rainfall was 32.7 mm, which was 44% below the 1961–1990 average May rainfall (58.5 mm). May 2024 was wetter than May 2023 (15.1 mm), but drier than May 2022 (44.5 mm).
• Bunbury, south of Perth, recorded a monthly total of 177.4 mm, which was the third-wettest May in 29 years of rainfall records, behind 240 mm (the record) in May 1999, and 218.6 mm in May 2014.
• A number of cold fronts brought a week-long period of consecutive rain days at the end of May for much of the SWLD. Bunbury recorded 72.6 mm on the 29th, its highest May daily rainfall on record.
• A confirmed tornado formed during the passage of a cold front and impacted South Bunbury, Withers and College Grover in the afternoon on 10 May.
• An extensive northwest cloudband brought some heavy daily rainfall of 50–80 mm in the Kimberley on the 30th and 31st of May. Wyndham Aero and Diggers Rest had their highest May daily rainfall on record.

Temperature

• Mean maximum temperatures were above average to very much above average in the western and southern half of WA, as well as along the west Kimberley. Areas near the west coast of the state observed the warmest May on record.
• WA area-averaged mean maximum temperature for May was 2.35 °C above 1961–1990 average, which was the fifth-warmest May on record, and the warmest since 2008.
• The SWLD area-averaged mean maximum temperature for May was 3.76 °C above 1961–1990 average, which was the warmest May on record. The previous record was 2.86 °C above 1961-1990 average on May 2002.
• Many sites near the west coast from Carnarvon down to Cape Leeuwin, and sites in the eastern SWLD had their warmest May on record., or warmest May for at least 20 years.
• Mean minimum temperatures were above average to very much above average in the west of the state, southwestern Kimberley and the Southern Interior, and a small area in the southern coast around Eyre Bird Observatory recorded below average mean minimum temperatures.
• WA area-averaged mean minimum temperature for May was 1.08 °C above 1961–1990 average.
• A number of sites in the inland southwest WA experienced a frosty night with minimum temperatures at or below 2 °C on the 23rd: Wandering(1.2 °C); Corrigin (1.5 °C); Cunderdin Airfield (1.9 °C); and Brookton (2.0 °C).
• Cape Leeuwin and Cape Naturaliste in the southwest coast had their mildest May on record in terms of minimum temperatures.

Extremes Maps Records Summaries Important notes the top

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Extremes in May 2024
Hottest day	37.1 °C at Yampi Sound (Defence) on the 2nd 37.1 °C at Mandora on the 16th
Warmest days on average	34.0 °C at Derby Aero
Coolest days on average	20.6 °C at Shannon
Coldest day	11.6 °C at Katanning on the 29th
Coldest night	0.4 °C at Eyre on the 2nd
Coolest nights on average	6.2 °C at Eyre
Warmest nights on average	25.9 °C at Troughton Island
Warmest night	27.6 °C at Troughton Island on the 6th
Warmest on average overall	28.9 °C at Troughton Island
Coolest on average overall	14.8 °C at Eyre
Wettest overall	180.2 mm at Brunswick Junction 180.2 mm at Burekup
Wettest day	80.0 mm at Diggers Rest on the 31st
Strongest wind gust	111 km/h at Rottnest Island on the 29th

Extremes Maps Records Summaries Important notes the top

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Maps
	Observed	Anomaly	Decile rank
Total rainfall
Mean daily maximum temperatures
Mean daily minimum temperatures

Click on a map to show it full size in a pop-up window

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Record highest May daily rainfall
	New record (mm)		Old record		Years of record
Wyndham Aero	53.4	on the 31st	46.7	on the 26th in 1968	41
Bunbury	72.6	on the 29th	68.0	on the 27th in 1999	29
Diggers Rest	80.0	on the 31st	57.8	on the 9th in 1974	26
Wandering	45.6	on the 3rd	40.6	on the 19th in 2005	26




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Record highest May temperature
	New record (°C)		Old record		Years of record	Average for May
Cape Naturaliste	27.8	on the 15th	= 27.8	on the 6th in 2003	68	19.3
North Island	30.4	on the 2nd	29.4	on the 2nd in 2012	24	24.4
Mandurah	29.0	on the 13th	28.8	on the 9th in 2005	23	21.0




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Record highest May mean daily maximum temperature
	New record (°C)	Old record		Years of record	Average for May
Cape Leeuwin	22.2	21.4	in 2018	127	19.2
Cape Naturaliste	23.1	22.2	in 2003	120	19.3
Northam	25.1	24.5	in 1994	119	21.3
Albany	21.3	21.0	in 1934	106	18.7
Dwellingup	22.2	21.4	in 2009	86	18.6
Manjimup	21.1	20.5	in 2009	84	17.8
Perth Airport	25.4	24.4	in 1972	79	21.8
Carnarvon Airport	29.8	29.1	in 2019	76	26.4
Pearce RAAF	25.8	24.9	in 1972	63	22.1
Karnet	22.5	22.1	in 2009	58	19.2
Merredin	25.1	23.6	in 2002	58	20.8
Wongan Hills	25.0	24.4	in 1972	55	21.6
Jurien Bay	25.9	25.7	in 2009	54	23.3
Beverley	24.9	24.1	in 1972	53	21.5
Pingelly	23.0	22.1	in 1972	52	19.7
Kalbarri	29.1	28.5	in 2018	50	26.1
Paynes Find	26.4	26.3	in 1994	43	23.2
Jarrahwood	22.8	22.6	in 2009	42	20.0
Rottnest Island	23.7	22.6	in 2018	34	21.1
Windy Harbour	21.8	21.7	in 2003	34	19.9
Jandakot Aero	25.0	24.1	in 2009	33	22.0
Bickley	22.0	21.0	in 2009	30	19.2
Jacup	22.1	22.0	in 2002	30	19.7
Perth Metro	24.9	24.4	in 2009	30	22.3
Swanbourne	24.6	24.0	in 2009	30	22.1
Bunbury	23.2	22.5	in 2003	28	21.0
Gingin Aero	25.5	= 25.5	in 1996	28	22.7
Rocky Gully	20.8	20.4	in 2018	28	18.5
York	25.3	24.5	in 2018	28	21.9
Cunderdin Airfield	25.0	24.0	in 2002	27	21.9
Dalwallinu	24.9	24.7	in 2002	27	22.2
Morawa Airport	26.2	26.0	in 2002	27	24.0
Southern Cross Airfield	24.6	= 24.6	in 2002	27	21.4
Bridgetown	21.9	21.7	in 2009	26	19.5
Busselton Aero	22.8	22.1	in 2009	26	20.4
Lake Grace	22.5	22.0	in 2002	26	20.0
Newdegate Research Station	22.6	21.9	in 2002	26	19.9
Katanning	21.5	20.7	in 2003	25	19.2
Shannon	20.6	19.9	in 2003	25	18.1
Wandering	22.5	21.8	in 2009	25	20.0
North Island	26.5	25.5	in 2005	23	24.4
Garden Island HSF	24.1	23.0	in 2018	22	21.4
Mandurah	23.6	22.4	in 2009	22	21.0
Collie East	22.1	21.8	in 2018	21	20.1
North Walpole	21.4	20.7	in 2018	20	19.1




Highest May mean daily maximum temperature for at least 20 years
	Observed (°C)	Most recent higher		Average for May
Narrogin	22.5	25.1	in 1962*	18.7
Brookton	23.5	23.6	in 1972*	20.5
Badgingarra Research Stn	25.4	26.1	in 1972*	22.5
Wagin	22.2	22.3	in 1972*	19.5
Esperance	22.7	=22.7	in 2002	20.5
Mullewa	26.7	27.0	in 2002	23.8
Ravensthorpe	22.5	23.5	in 2002	20.1
Hyden	23.7	24.1	in 2002*	20.9

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




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Record highest May daily minimum temperature
	New record (°C)		Old record		Years of record	Average for May
North Island	23.5	on the 10th	23.4	on the 15th in 2021	24	18.4
Shark Bay Airport	24.1	on the 2nd	23.0	on the 6th in 2002	24	14.5




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Record highest May mean daily minimum temperature
	New record (°C)	Old record		Years of record	Average for May
Cape Leeuwin	16.1	15.8	in 2005	127	13.7
Cape Naturaliste	14.6	= 14.6	in 2005	120	12.6
Karnet	12.1	11.9	in 2005	58	9.0
Rottnest Island	17.3	16.9	in 2005	34	15.2
Bickley	12.2	12.1	in 2005	30	10.1
North Island	20.1	= 20.1	in 2003	23	18.4




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Record lowest May mean daily minimum temperature
	New record (°C)	Old record		Years of record	Average for May
Eyre	6.2	= 6.2	in 2020	64	8.9




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Record highest May mean temperature
	New record (°C)	Old record		Years of record	Average for May
Cape Leeuwin	19.1	18.4	in 2005	127	16.5
Cape Naturaliste	18.9	18.3	in 2003	120	16.0
Northam	17.6	17.3	in 1962	119	14.8
Dwellingup	16.2	16.1	in 2005	86	13.2
Manjimup	16.1	15.8	in 2005	84	13.3
Perth Airport	19.2	18.8	in 2005	79	16.1
Pearce RAAF	19.8	19.2	in 2005	63	16.4
Karnet	17.3	16.4	in 2005	58	14.1
Merredin	18.3	17.5	in 1998	58	14.8
Brookton	16.6	16.2	in 1972	55	14.1
Wongan Hills	18.4	18.2	in 1998	55	15.7
Badgingarra Research Stn	19.2	18.5	in 1972	54	16.6
Beverley	17.5	16.9	in 1998	53	14.7
Kalbarri	22.5	= 22.5	in 2005	50	19.7
Wagin	16.3	15.9	in 2005	49	13.7
Rottnest Island	20.5	19.7	in 2003	34	18.1
Jandakot Aero	18.7	18.2	in 2005	33	15.7
Esperance Aero	17.0	= 17.0	in 2008	32	15.3
Bickley	17.1	16.3	in 2005	30	14.7
Jacup	15.8	= 15.8	in 2005	30	14.0
Perth Metro	18.9	18.6	in 2005	30	16.4
Swanbourne	19.8	19.2	in 2005	30	17.3
Bunbury	17.5	17.3	in 2005	28	15.1
Gingin Aero	18.5	= 18.5	in 2005	28	15.8
Rocky Gully	15.9	15.6	in 2005	28	13.8
Southern Cross Airfield	16.8	= 16.8	in 2005	27	14.3
Bridgetown	15.3	15.2	in 2005	26	13.1
Busselton Aero	17.0	16.8	in 2005	26	14.7
Lake Grace	16.3	16.1	in 2005	26	14.3
Newdegate Research Station	15.4	15.3	in 1999	26	13.4
Katanning	15.7	15.5	in 1999	25	13.9
Shannon	15.8	15.7	in 2005	25	13.4
Wandering	15.4	14.5	in 1999	25	13.1
North Island	23.3	22.7	in 2003	23	21.4
Garden Island HSF	19.8	19.5	in 2005	22	17.6
Mandurah	19.7	19.1	in 2005	22	17.2
North Walpole	17.1	= 17.1	in 2005	20	15.2




Highest May mean temperature for at least 20 years
	Observed (°C)	Most recent higher		Average for May
Narrogin	16.1	18.1	in 1962*	13.2
Dalwallinu	18.0	18.8	in 1998	15.9
Esperance	17.3	17.4	in 2002	15.8
Ravensthorpe	16.7	17.2	in 2002	14.9

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





Extremes Maps Records Summaries Important notes the top

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Summary statistics for May 2024
	Maximum temperatures (°C)				Minimum temperatures (°C)				Rainfall (millimetres)
	Mean for May 2024	Diff from average	Highest for May 2024		Mean for May 2024	Diff from average	Lowest for May 2024		Total for May 2024	Average for May	Rank of May 2024	Fraction of May average
North Kimberley (district 01)
Doongan	31.5	+0.2	33.0	29th	15.0	+0.2	8.0	22nd	0	12.3	lowest	0%
Kalumburu	33.7	+0.1	35.4	29th	18.9	+2.0	13.7	22nd	0	14.7	lowest	0%
Troughton Island	32.0	+0.8	33.9	2nd	25.9	+0.5	23.5	21st	50.4	35.7	high	141%
Truscott	32.4	+0.3	34.2	17th	22.0	+0.6	18.4	23rd	14.6	18.7	high	78%
Wyndham Aero	33.9	-0.2	36.1	17th	20.2	+1.2	13.5	22nd	53.4	12.5	v high	427%
East Kimberley (district 02)
Argyle Aerodrome	31.9	-0.2	34.5	17th	19.7	+0.6	13.4	22nd	8.8	7.5	high	117%
Halls Creek Airport	29.4		32.3	17th	15.7		11.2	23rd	14.8
Kununurra Aero	32.8	-0.1	35.2	17th	18.9	+0.4	12.2	22nd	7.0	6.6	high	106%
Warmun	32.1	-0.1	34.6	5th					3.0	9.8	average	31%
West Kimberley (district 03)
Broome Airport	32.7	+1.0	36.1	5th	19.4	+1.2	12.6	22nd	62.2	27.0	high	230%
Curtin Aero	33.7	+0.4	36.3	11th	20.9	+1.9	15.3	22nd	25.0	14.8	high	169%
Cygnet Bay	30.8	-0.2	33.3	6th	21.0	+1.8	16.0	23rd	0	38.8	lowest	0%
Derby Aero	34.0	+1.0	36.8	2nd	20.3	+1.6	12.2	23rd	25.2	19.2	high	131%
Fitzroy Crossing Aero	33.3	0.0	35.7	16th	16.8	+0.8	9.3	21st	5.6	14.3	high	39%
De Grey (district 04)
Karratha Aero	31.0	+1.0	33.5	6th	18.6	+0.3	14.0	23rd	2.0	31.0	average	6%
Legendre Island	29.3	+1.0	31.2	16th	22.3	+0.2	19.3	29th
Mandora	33.6	+1.4	37.1	16th	18.0	+1.0	10.1	23rd	13.4	25.1	average	53%
Marble Bar	31.8	+0.8	34.9	6th			11.3	23rd	5.8	13.4	average	43%
Port Hedland Airport	32.6	+1.9	36.1	2nd	18.5	+1.1	14.6	21st	2.4	27.0	average	9%
Roebourne Aero	32.8	+1.3	36.1	7th	16.9	+0.1	12.8	23rd	1.8	39.1	average	5%
Fortescue (district 05)
Barrow Island Airport	28.6	+1.1	31.4	7th	21.2	-0.1	18.7	23rd	13.4	58.2	average	23%
Karijini North	29.8		33.4	7th	17.6		12.5	24th	0.8
Learmonth Airport	30.6	+2.0	35.0	6th	15.5	-0.5	9.9	22nd	6.6	41.2	low	16%
Mardie	33.6	+2.1	36.9	6th	17.8	+0.8	11.9	22nd	3.0	38.2	average	8%
Onslow Airport	31.8	+2.4	36.7	6th	18.7	+1.2	14.6	23rd	10.6	50.7	average	21%
West Gascoyne (district 06)
Carnarvon Airport	29.8	+3.4	36.1	2nd	14.6	-0.2	7.8	31st	4.4	32.7	low	13%
Murchison	28.3	+2.2	33.0	3rd	12.0	+0.9	5.5	31st	28.1	16.8	high	167%
Shark Bay Airport	29.2	+1.7	34.8	1st	16.1	+1.6	10.1	23rd	24.0	23.1	average	104%
East Gascoyne (district 07)
Newman Aero	28.1	+1.1	31.4	6th	11.3	-0.6	4.8	22nd	0	18.2	lowest	0%
Paraburdoo Aero	30.1	+1.1	33.5	8th	15.5	+0.7	11.6	30th	1.4	18.8	low	7%
Murchison (district 07A)
Meekatharra Airport	26.5	+2.6	29.8	4th	13.6	+1.5	4.9	30th	10.0	21.5	average	47%
Mount Magnet Aero	26.2	+2.3	30.2	3rd	12.8	+1.3	5.9	30th	5.4	16.5	average	33%
Paynes Find	26.4	+3.2	31.2	11th	10.9	+1.5	3.5	23rd	12.6	34.5	average	37%
North Coast (district 08)
Dalwallinu	24.9	+2.7	29.8	12th	11.0	+1.3	6.0	31st	18.4	33.6	average	55%
Geraldton Airport	28.1	+2.9	33.6	12th	14.2	+1.9	9.1	7th	8.4	35.9	v low	23%
Kalbarri	29.1	+3.0	34.5	2nd	15.7	+2.4	9.5	6th	12.7	52.2	low	24%
Morawa Airport	26.2	+2.2	31.0	11th	12.2	+1.9	5.1	23rd	28.0	34.6	average	81%
Mullewa	26.7	+2.9	31.6	11th	13.7	+2.5	7.6	31st	14.5	45.1	low	32%
North Island	26.5	+2.1	30.4	2nd	20.1	+1.7	13.7	31st	21.6	39.5	average	55%
Wongan Hills	25.0	+3.4	29.3	10th	11.7	+1.9	7.3	30th	33.8	50.7	average	67%
Central Coast (district 09)
Badgingarra Research Stn	25.4	+2.9	29.9	9th	13.0	+2.4	7.7	6th	38.2	66.2	low	58%
Bickley	22.0	+2.8	26.6	14th	12.2	+2.1	6.5	29th	93.8	129.1	low	73%
Garden Island HSF	24.1	+2.7	28.9	13th	15.5	+1.7	11.0	29th	92.0	74.6	high	123%
Gingin Aero	25.5	+2.8	29.6	14th	11.4	+2.5	2.4	23rd	64.8	72.2	average	90%
Jandakot Aero	25.0	+3.0	29.8	14th	12.4	+3.0	4.7	23rd	88.8	103.9	average	85%
Jurien Bay	25.9	+2.6	31.1	18th			7.3	7th	21.8	73.8	v low	30%
Karnet	22.5	+3.3	27.5	14th	12.1	+3.1	7.0	30th	125.2	137.5	average	91%
Lancelin (Defence)	26.1		31.3	12th	14.5		7.2	15th	37.4
Millendon (Swan Valley)	25.6		29.8	10th	12.8		5.1	23rd	89.2
Pearce RAAF	25.8	+3.7	29.8	2nd	13.8	+3.1	6.0	5th	85.2	82.4	average	103%
Perth Airport	25.4	+3.6	29.9	14th	13.1	+2.7	6.2	5th	69.8	96.3	average	72%
Perth Metro	24.9	+2.6	29.4	14th	12.9	+2.4	6.1	23rd	76.0	86.2	average	88%
Rottnest Island	23.7	+2.6	27.8	13th	17.3	+2.1	10.2	29th	38.4	70.2	low	55%
Swanbourne	24.6	+2.5	29.7	13th	15.0	+2.5	10.7	5th	62.4	87.2	low	72%
South Coast (district 09A)
Albany	21.3	+2.6	27.2	10th	13.1	+2.3	9.2	30th	86.6	114.3	average	76%
Albany Airport	22.2	+2.7	27.8	10th	11.1	+1.8	6.8	23rd	89.2	78.7	high	113%
Bridgetown	21.9	+2.4	26.1	14th	8.7	+2.0	4.2	16th	88.4	95.1	average	93%
Bunbury	23.2	+2.2	27.9	13th	11.7	+2.5	7.7	5th	177.4	100.0	v high	177%
Busselton Aero	22.8	+2.4	27.3	14th	11.2	+2.2	8.0	26th	86.6	97.7	average	89%
Cape Leeuwin	22.2	+3.0	27.4	18th	16.1	+2.4	10.7	29th	59.4	134.9	v low	44%
Cape Naturaliste	23.1	+3.8	27.8	15th	14.6	+2.0	8.9	29th	63.4	113.2	low	56%
Collie East	22.1	+2.0	27.3	14th	8.1	+2.1	3.0	23rd	89.4	92.1	average	97%
Dwellingup	22.2	+3.6	26.5	14th	10.3	+2.6	4.5	23rd	123.2	154.5	average	80%
Esperance	22.7	+2.2	28.0	25th	11.8	+0.8	8.3	24th	47.2	69.7	low	68%
Esperance Aero	22.6	+2.4	27.0	25th	11.5	+1.0	7.9	30th	30.0	63.4	low	47%
Hopetoun North	22.3	+1.3	30.4	10th	11.0	+0.6	6.2	23rd	17.4	43.9	low	40%
Jarrahwood	22.8	+2.8	27.7	14th	8.7	+2.0	4.0	16th	88.4	121.4	low	73%
Mandurah	23.6	+2.6	29.0	13th	15.8	+2.4	10.8	29th	77.8	83.0	average	94%
Manjimup	21.1	+3.3	25.7	14th	11.1	+2.2	6.3	29th	102.6	126.9	average	81%
North Walpole	21.4	+2.3	25.3	24th	12.8	+1.6	8.3	29th	110.8	116.6	average	95%
Rocky Gully	20.8	+2.3	25.7	14th	11.0	+1.9	7.0	30th	80.0	76.3	average	105%
Shannon	20.6	+2.5	25.4	14th	11.0	+2.2	6.9	29th	119.4	116.6	average	102%
Windy Harbour	21.8	+1.9	26.2	18th	11.7	+1.0	6.5	19th	140.1	144.2	average	97%
Witchcliffe West	21.9		25.1	17th	12.2		8.6	23rd	92.2
North Central (district 10)
Cunderdin Airfield	25.0	+3.1	30.5	12th	9.1	+1.0	1.9	23rd	30.0	30.2	average	99%
Merredin	25.1	+4.3	29.2	12th	11.4	+2.5	6.5	31st	19.4	40.0	low	49%
Northam	25.1	+3.8	29.6	2nd	9.9	+1.5	5.9	24th	43.5	54.4	average	80%
York	25.3	+3.4	29.1	10th			5.5	15th	33.5	45.8	average	73%
South Central (district 10A)
Beverley	24.9	+3.4	28.6	15th	9.8	+2.0	2.2	23rd	48.4	52.9	average	91%
Brookton	23.5	+3.0	27.6	14th	9.7	+2.1	2.0	23rd	44.4	55.9	average	79%
Hyden	23.7	+2.8	28.0	10th	8.7	+1.2	3.3	23rd	35.5	38.6	average	92%
Jacup	22.1	+2.4	27.6	10th	9.5	+1.2	5.1	19th	23.4	34.2	average	68%
Katanning	21.5	+2.3	26.9	13th	9.9	+1.4	6.5	26th	39.6	46.9	average	84%
Lake Grace	22.5	+2.5	26.8	13th	10.1	+1.5	5.2	23rd	21.2	30.8	average	69%
Narrogin	22.5	+3.8	26.7	14th	9.8	+2.0	4.5	23rd	54.4	61.7	average	88%
Newdegate Research Station	22.6	+2.7	27.9	10th	8.3	+1.4	3.0	19th	18.8	41.2	low	46%
Pingelly	23.0	+3.3	27.2	15th	10.4	+1.7	5.5	23rd	17.0	56.8	v low	30%
Ravensthorpe	22.5	+2.4	28.0	10th	11.0	+1.4	7.0	15th	17.4	43.3	low	40%
Wagin	22.2	+2.7	27.0	13th	10.2	+2.2	5.5	15th	42.9	53.3	average	80%
Wandering	22.5	+2.5	26.7	14th	8.3	+2.1	1.2	23rd	58.6	56.4	average	104%
Eucla (district 11)
Eucla	22.8	+1.7	30.2	28th	10.6	0.0	6.2	25th	7.0	30.5	v low	23%
Eyre	23.5	+2.0	30.6	28th	6.2	-2.7	0.4	2nd	13.4	37.6	low	36%
Forrest	24.0	+1.7	29.5	28th	7.6	-1.0	4.1	3rd	8.0	15.0	average	53%
Red Rocks Point	21.4	+0.1	31.0	28th	11.1	-0.1	4.8	25th	3.4	25.1	v low	14%
South East (district 12)
Bulga Downs	26.1	+2.2	30.5	3rd	10.2	+1.2	2.9	31st	1.6	24.1	low	7%
Kalgoorlie-Boulder Airport	23.9	+3.2	28.9	11th	10.3	+1.6	4.6	30th	4.6	24.1	low	19%
Laverton Aero	24.8	+2.5	29.2	6th	11.8	+1.4	2.6	30th	8.0	13.2	average	61%
Leinster Aero	25.4	+2.2	29.1	6th	11.1	+0.7	4.2	30th	4.4	13.8	average	32%
Leonora Aero	25.3	+2.2	29.1	3rd	11.0	+1.3	4.5	30th	2.0	9.1	average	22%
Munglinup West	22.4	+1.9	26.4	10th	10.4	+0.9	6.9	15th	48.2	38.3	average	126%
Norseman Aero	23.5	+2.5	30.1	11th	8.6	+1.6	3.4	23rd	16.0	17.7	average	90%
Salmon Gums Res.Stn.	22.9	+3.0	28.5	11th	8.1	+1.0	1.7	23rd	25.8	33.3	average	77%
Southern Cross Airfield	24.6	+3.2	29.5	11th	8.9	+1.6	3.7	23rd	6.6	26.4	low	25%
North East (district 13)
Carnegie	25.3	+0.1	30.0	6th			3.5	31st	20.6	16.5	high	125%
Giles Meteorological Office	24.8	+1.0	28.0	16th	11.0	-0.3	4.6	21st	6.8	19.9	average	34%
Telfer Aero	29.6	+0.5	32.4	14th	15.4	-0.1	9.9	21st	5.4	18.8	average	29%
Warburton Airfield	25.1	+0.7	28.9	27th	11.2	+0.7	2.7	31st	10.4	14.8	average	70%
Wiluna Aero	25.9		30.5	6th	10.9		2.7	31st	9.2
Offshore Islands
Adele Island	30.4		31.6	17th	26.2		22.8	22nd
Rowley Shoals	28.5		29.6	2nd	26.6		21.3	30th
Varanus Island	28.8	+0.8	30.8	6th	24.3	+0.7	19.9	29th	15.4	43.6	average	35%

Extremes Maps Records Summaries Important notes the top

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Notes

The Monthly climate summary, usually published in the first week of the following 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.

This statement has been prepared based on information available at 9 am on Sunday 2 June 2024. 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.

Information about Australian Indigenous seasonal calendars is available at the Indigenous Weather Knowledge website.

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