Wednesday, 1 August 2012 - Monthly Climate Summary for Western Australia - Product code IDCKGC21R0

Western Australia in July 2012: Record cold and dry

• Rainfall: 3rd driest on record for WA; driest on record for southwest WA
• Maximum temperature: Near average for WA; 7th warmest on record for southwest WA
• Minimum temperature: Lowest on record for WA; below average for southwest WA

Extremes Maps Records Summaries Important notes the top

Rainfall

Record low rainfall was observed across a large part of southwest WA during July 2012 (see the maps below), particularly in western districts, centred on the Lower West. Many sites observed their driest July on record, including the centres of Perth, Northam, Goomalling, Narrogin, Wagin, and Collie; all of which have over 100 years of rainfall records (see the records tables below). Averaged across the Lower Southwest (southwest of a line from Jurien Bay to Bremer Bay), July 2012 was the driest July since comparable records commenced in 1900, with a total of 36 mm. The previous lowest July total rainfall for this region occurred in 1918 (47 mm), whilst the third lowest was 2005 (48 mm). The very low rainfall during July 2012 was the result of persistent high pressure systems over southern WA during the month and a contraction of the usual fronts and westerly winds southwards.

Below to very much below average rainfall was observed in much of the remainder of the Southwest Land Division (SWLD), apart from areas in the South and Southeast Coastal districts where rainfall was above to very much above average where an onshore flow for much of the month resulted in consistent showers. The SWLD recorded its second driest July, only behind the July of 2005.

Very low rainfall totals were observed across the state outside of the SLWD, however this is not uncommon for this time of year. The low rainfall throughout much of WA resulted in July 2012 ranking as the 3rd driest on record for WA behind 1937 and 1977.

Individual rainfall events over southern WA were mainly confined to cold fronts moving through the region on the 6th to 8th, 10th to 12th, 16th to 17th, and 23rd to 24th. Otherwise, strong ridging over southern WA resulted in generally clear conditions across much of the state for the month, aside from onshore showers along the south coast. A stronger cold front moved over the southwest corner early on the 31st, bringing widespread rainfall to the SWLD.

The very dry July in the Lower Southwest follows a near average June and the 7th driest autumn on record for the region. As a result, the Lower Southwest has seen its 6th driest January to July period, with the driest being 2001, the 3rd driest 2010, and the 5th driest 2006 (i.e. four of the driest such periods have occurred since 2001). The Lower Southwest has also experienced its 5th driest April to July, 4th driest May to July, and 8th driest Jun to July periods on record in 2012.

Maximum temperature

Above to very much above average maximum temperatures were observed over much of western WA, as well as in the southeast of the state during July. Most of western WA was up to 2 °C warmer than normal with patches of up to 3 °C warmer than normal in the west Gascoyne. The only area with below average mean monthly maxima was in the east Kimberley and adjacent northern Interior, where temperatures were up to 3 °C cooler than normal, while the remainder of the state was close to average.

When averaged across the state as a whole, the mean maximum temperature for WA during July 2012 was near average, whilst for the Lower Southwest (southwest of a line from Jurien Bay to Bremer Bay), daytime temperatures were very much above average and ranked as the 7th warmest July on record. This continues the very warm year to date in the Lower Southwest where alomst all months have seen above average maxima, aside from February. The mean maximum for the first seven months (January to July ) was 0.9 °C above normal and ranked as the 4th warmest January to July period since comparable temperature records commenced in 1950, largely due to a very warm autumn (5th warmest) and a very warm July (7th warmest). This "warm" run of temperatures has persisted for almost three years as the Lower West has only recorded two below average months, in terms of maximum temperature, since September 2009.

Warmer than normal daytime temperatures were observed through much of western and southern WA from the 1st to the 7th as a high moved through the Bight and directed warm northeasterly winds over the area. In contrast, the high directed cool southeasterly winds over the Kimberley resulting in relatively cool daytime temperatures during this period. A trough moved eastward through WA on the 10th and 11th, with warm conditions in the northerly flow ahead of the trough over central and eastern WA. Cooler southerly winds extended across southern WA as a ridge developed in the wake of the trough, with Norseman Aerodrome observing the coolest day in WA in July 2012 with a maximum of 10.1 °C on the 10th, and cooler than normal days extended through much of WA up to the 14th. Warm days were observed across the Pilbara and adjacent Kimberley on the 17th and 18th as a trough deepened over the Gascoyne. The warmth extended across western WA from the 19th to 22nd as the trough deepened along the west coast ahead of a cold front. Warm conditions returned to western WA on the 29th and 30th due to a high in the Bight directing northerly winds over the region.

Minimum temperature

Most of WA saw below to very much below average mean minimum temperatures during July 2012, with areas of lowest on record in the central eastern and southeastern Interior, and in central parts of the Lower West and neighbouring districts. Most of WA saw overnight temperatures at least 1 °C cooler than normal, with means up to 5 °C cooler than normal in the central eastern Interior. The only areas with close to average minima for July 2012 were parts of the south coast, far northern Gascoyne, west Pilbara, and small pockets of the Kimberley.

When averaged across the state as a whole, the July 2012 mean minimum temperature ranked as the coldest on record for WA. Comparable records commenced in 1950. The very cold July, combined with each month during 2012 recording overnight temperatures below the average (including the 4th coldest May), has resulted in WA observing its 3rd coolest January to July period on record. The Lower Southwest (southwest of a line from Jurien Bay to Bremer Bay) observed very much below average overnight temperatures during July 2012 but, in contrast to the WA average so far this year, it was only the second month to do so since October 2010.

The cool to cold overnight temperatures observed throughout much of WA during July 2012 were the result of persistent ridging across the south of the state resulting in generally clear skies and light winds, and an associated lack of rainfall, with numerous sub-zero minima observed at sites in central and southern WA throughout the month.

Further information

Western Australia Climate Services Centre
Bureau of Meteorology
Phone (08) 9263 2222
Email climatedata@bom.gov.au

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Extremes in July 2012
Hottest day	35.1 °C at Wyndham Aero on the 13th
Warmest days on average	31.2 °C at Kalumburu
Coolest days on average	15.2 °C at Katanning
Coldest day	10.1 °C at Norseman Aero on the 10th
Coldest night	-4.2 °C at Yeelirrie on the 7th -4.2 °C at Warburton Airfield on the 8th
Coolest nights on average	0.8 °C at York
Warmest nights on average	21.1 °C at Troughton Island 17.9 °C at Truscott
Warmest night	23.1 °C at Troughton Island on the 28th 21.5 °C at Truscott on the 13th
Wettest overall	141.4 mm at Walpole
Wettest day	39.0 mm at Warra Jarra on the 8th
Highest wind gust	87 km/h at Geraldton Airport on the 10th

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

Extremes Maps Records Summaries Important notes the top

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Record lowest total July rainfall
	Total rainfall for July 2012 (mm)	Previous driest for July		Years of record	Average for July
Perth Metro*	34.6	61.5	in 1876	137	165.4
Northam	13.6	19.6	in 1937	132	82.4
Bannister	31.8	36.3	in 1909	128	122.7
Jarrahdale	47.8	72.7	in 1959	128	227.1
Williams	21.0	27.4	in 1976	128	96.5
Beverley	13.4	19.7	in 1957	127	77.5
Pingelly	9.6	22.3	in 1909	122	81.6
Wagin	17.8	19.9	in 1959	122	70.9
Broomehill	14.8	20.9	in 1937	121	68.2
Narrogin	8.8	24.9	in 1957	121	87.1
Greenbushes	37.1	49.2	in 1918	120	167.4
Kellerberrin	9.7	9.9	in 2005	119	51.6
Doongin Peak	7.0	7.6	in 2005	118	53.3
Collie	42.0	51.7	in 1918	114	177.5
Darkan	19.8	34.2	in 2005	111	99.9
Mundaring	43.8	58.7	in 1889	111	214.5
Goomalling	8.2	12.2	in 1957	110	64.4
Cape Naturaliste	49.8	67.6	in 2001	108	161.2
Berkshire Valley	13.0	16.8	in 1957	106	82.5
Brookton	10.5	23.0	in 1909	104	84.7
Chidlow	21.8	55.5	in 1959	104	180.0
Quairading	12.0	12.7	in 1957	102	62.7
Tammin	5.4	10.0	in 2005	102	55.5
Rushy Pool	8.0	13.8	in 1957	101	67.6
Barberton	9.8	18.3	in 1937	100	84.1
Dalwallinu Comparison	14.7	17.4	in 1937	100	59.7
Wattening	12.2	22.7	in 1976	100	81.0
Chamingup	19.0	30.1	in 1957	98	89.6
Dellyanine	21.4	25.0	in 1957	97	77.4
Manjimup	42.0	42.7	in 1918	97	174.5
Forest Grove	88.0	90.3	in 1971	86	222.2
Ygnattering	7.0	11.0	in 1957	85	54.9
Margaret River	80.4	93.0	in 2001	84	215.7
Kondut	10.2	11.9	in 1937	81	57.7
Woodanilling	22.2	22.6	in 1957	79	72.9
Dwellingup	53.6	93.7	in 1976	77	237.0
Happy Valley	10.8	11.5	in 1937	76	58.4
Bulyee	15.0	18.8	in 1976	74	64.1
Cowaramup	91.8	94.6	in 2001	74	222.1
Waroona	47.0	76.3	in 1959	73	189.5
Roelands	59.2	65.0	in 2001	71	174.3
Perth Airport	30.6	63.4	in 2005	69	157.3
Cranham	16.2	26.6	in 2005	59	77.9
Dandaragan West	32.4	42.2	in 1976	58	118.8
Pearce RAAF	23.2	54.4	in 1976	58	135.2
Chapman Hill	53.8	58.4	in 2001	54	171.2
Swanara	10.6	12.8	in 2005	52	46.3
Gidgegannup	28.0	28.8	in 2005	51	184.3
Gosnells City	35.6	70.3	in 2005	51	162.0
Badgingarra Research Stn	24.0	25.8	in 1976	50	104.7
Albany Airport Comparison	55.0	56.6	in 1965	49	119.9
Avondale Farm	13.4	18.9	in 1976	48	70.1
Karnet	24.8	104.6	in 1998	48	218.2
Bickley	31.6	97.4	in 1976	44	217.5
Culford	19.4	50.0	in 1976	43	127.6
Kalbarri	6.8	7.0	in 1992	41	70.8
Ferguson Valley	61.0	81.2	in 2001	40	174.6
Bindoon	21.0	36.8	in 1976	39	139.3
Swan View	24.6	61.0	in 2005	39	159.8
Jandakot Aero	34.6	76.4	in 1976	38	174.5
Jarrahwood	44.4	66.0	in 2001	37	174.5
Pickering Brook	28.7	94.6	in 1976	36	198.9
Gibb Rock	10.2	15.0	in 2005	31	45.0
Medina Research Centre	39.4	76.1	in 2005	30	147.9

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Record highest July temperature
	Highest temperature in July 2012 (°C)		Previous warmest for July		Years of record	Average for July
Jurien Bay	26.2	on the 21st	= 26.2	on the 15th in 1977	43	19.4

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Record highest July mean daily maximum temperature
	Mean daily maximum temperature for July 2012 (°C)	Previous warmest for July		Years of record	Average for July
Dwellingup	16.6	16.5	in 1976	74	15.0

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Record lowest July temperature
	Lowest temperature in July 2012 (°C)		Previous coolest for July		Years of record	Average for July
Beverley	-2.6	on the 19th	= -2.6	on the 20th in 1997	43	5.2
Jurien Bay	0.5	on the 25th	0.6	on the 26th in 1990	43	9.4

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Record lowest July mean daily minimum temperature
	Mean daily minimum temperature for July 2012 (°C)	Previous coolest for July		Years of record	Average for July
Northam	1.9	= 1.9	in 1997	108	5.4
Corrigin	1.9	2.0	in 1997	64	4.9
Giles Meteorological Office	3.1	3.7	in 1983	55	6.9
Karnet	4.4	4.6	in 2006	46	6.2
Brookton	2.0	2.1	in 2010	44	4.6
Ongerup	4.3	= 4.3	in 2010	44	5.8
Beverley	1.8	2.6	in 2010	42	5.2
Jurien Bay	6.1	7.0	in 2010	42	9.4
Hyden	2.3	2.6	in 2010	39	4.7
Warburton Airfield	2.0	3.0	in 1943	37	5.8

Extremes Maps Records Summaries Important notes the top

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Summary statistics for July 2012
	Maximum temperatures for July (°C)				Minimum temperatures for July (°C)				Rainfall for July (millimetres)
	Mean for July 2012	Diff from average	Highest for July 2012		Mean for July 2012	Diff from average	Lowest for July 2012		Total for July 2012	Average for July	Rank of July 2012	Fraction of July average
North Kimberley (district 01)
Doongan	28.9	-0.8	32.0	11th	9.1	-1.7	5.1	23rd	0	0.4	v low	0%
Kalumburu	31.2	-0.8	34.2	13th	14.3	+0.5	9.0	8th	0	0.3	v low	0%
Mount Elizabeth	27.7	-0.8	31.0	11th	5.7	-2.6	-0.1	4th	0	3.1	lowest	0%
Troughton Island	27.6	-0.6	29.7	15th	21.1	-1.1	19.2	24th	0	2.8	v low	0%
Truscott	30.2		33.3	15th	17.9		14.9	8th	0
Wyndham	29.9	-1.3	34.4	13th	15.1	-1.9	10.8	22nd	0	3.1	lowest	0%
Wyndham Aero	30.4	-1.4	35.1	13th	14.2	-1.0	9.6	3rd	0	3.1	v low	0%
East Kimberley (district 02)
Argyle Aerodrome	28.3	-1.4	33.9	11th	13.6	-2.1	9.5	4th	0	1.4	v low	0%
Halls Creek Airport	25.6	-1.6	31.3	11th	11.3	-1.3	7.1	7th	0	6.0	lowest	0%
Kununurra Aero	29.8	-0.7	34.3	13th	13.4	-1.8	6.7	7th	0	1.7	lowest	0%
Warmun	28.0	-1.5	34.0	11th	12.2	-0.4	7.0	7th	0	5.4	lowest	0%
West Kimberley (district 03)
Bidyadanga	29.2	-0.3	33.6	19th	13.3	-0.7	10.2	4th	0	8.4	lowest	0%
Broome Airport	28.4	-0.4	33.1	18th	12.8	-0.9	7.5	9th	0	7.2	lowest	0%
Curtin Aero	29.9	-1.1	34.5	18th	13.3	-2.1	6.2	8th	0	7.9	v low	0%
Derby Aero	29.7	-1.0	33.2	18th	11.8	-3.1	6.1	9th	0	7.6	lowest	0%
Fitzroy Crossing Aero	29.3	-1.5	33.1	17th	9.8	-2.5	3.9	4th	0	6.7	v low	0%
West Roebuck	29.8	-1.2	34.4	18th	10.0	-2.6	4.2	3rd	0	19.6	v low	0%
De Grey (district 04)
Bedout Island	23.9		27.0	25th
Karratha Aero	25.6	-0.7	29.8	25th	11.6	-2.2	7.3	7th	0.2	14.2	low	1%
Legendre Island	23.5		25.9	12th	16.7		13.6	7th
Mandora	28.4	-0.5	32.8	19th	10.0	-2.5	2.8	9th	0	8.8	lowest	0%
Marble Bar	26.4	-0.9	30.8	18th	10.8	-1.4	5.4	9th	0	19.3	v low	0%
Pardoo Station	27.2	-0.8	31.0	18th	11.4	-1.6	4.5	14th	0	9.7	lowest	0%
Port Hedland Airport	27.1	-0.1	30.9	25th	10.6	-1.7	5.8	9th	0	11.1	lowest	0%
Roebourne	27.1	+0.3	30.9	24th	11.9	-1.7	6.4	8th	0.2	13.7	average	1%
Roebourne Aero	26.8	-1.2	30.6	25th	9.8	-2.6	4.5	8th	0.4	10.3	average	4%
Fortescue (district 05)
Barrow Island Airport	23.0	-0.8	27.2	24th	15.8	-1.9	11.8	15th	1.0	13.7	average	7%
Learmonth Airport	25.0	+0.8	28.8	25th	10.0	-1.5	4.0	6th	0.8	22.2	low	4%
Mardie	28.0	+0.3	32.1	20th	10.6	-1.2	5.9	9th	0.2	13.3	average	2%
Onslow Airport	26.2	+0.9	30.8	25th	12.2	-0.7	7.5	16th	1.2	19.7	low	6%
Wittenoom	24.3	+0.1	28.1	17th	10.4	-1.1	4.0	15th	0	13.9	lowest	0%
West Gascoyne (district 06)
Carnarvon Airport	24.7	+2.4	28.8	21st	8.8	-2.2	3.3	6th	10.6	45.3	low	23%
Denham	22.2	+0.5	27.0	30th	13.4	+0.8	10.0	6th	30.2	40.0	average	76%
Emu Creek Station	26.6	+1.2	31.1	20th	10.3	-1.0	5.6	7th	1.6	21.8	average	7%
Murchison	21.9	+1.0	26.0	31st	4.3	-1.9	0.0	3rd	13.8	29.0	average	48%
Shark Bay Airport	22.9	+0.2	27.3	30th	9.4	-1.2	4.7	4th	28.2	30.4	average	93%
East Gascoyne (district 07)
Newman Aero	22.5	-0.5	26.8	17th	4.4	-1.8	-0.7	5th	0	14.9	lowest	0%
Paraburdoo Aero	24.8	0.0	29.8	20th	8.6	-1.2	1.8	6th	1.0	14.6	low	7%
Murchison (district 07A)
Meekatharra Airport	20.1	+1.1	24.0	10th	6.5	-0.9	1.8	13th	0.8	21.6	v low	4%
Mount Magnet Aero	19.1	+0.5	24.2	31st	5.4	-1.6	2.1	13th	10.6	32.4	low	33%
North Coast (district 08)
Carnamah	18.7	+0.8	24.5	21st	6.1	-1.2	1.7	25th	19.3	67.6	v low	29%
Dalwallinu Comparison	17.8	+0.8	23.0	22nd	5.5	-1.1	2.1	25th	14.7	59.7	lowest	25%
Geraldton Airport	20.6		24.3	30th	7.3		1.8	25th	32.2
Geraldton Airport Comparison	20.5	+1.0	24.9	21st	7.5	-1.9	1.6	25th	44.4	91.8	low	48%
Kalbarri	23.5	+1.8	27.8	20th	8.6	-1.1	1.4	6th	6.8	70.8	lowest	10%
Morawa Airport	19.1	+0.6	23.7	22nd	4.9	-1.2	1.3	25th	32.0	45.3	low	71%
Mullewa	20.3	+1.5	25.7	20th	7.0	0.0	2.4	13th	12.8	60.0	v low	21%
North Island	21.1	+0.1	25.2	21st	14.5	-0.9	7.7	16th	60.8	75.8	average	80%
Wongan Hills	18.0	+1.0	22.7	21st	5.1	-1.5	0.0	25th	14.6	69.4	v low	21%
Central Coast (district 09)
Badgingarra Research Stn	18.2	+0.6	23.4	21st	6.6	-0.7	1.8	25th	24.0	104.7	lowest	23%
Bickley	15.9	+0.9	20.2	21st	6.3	-0.8	2.9	9th	31.6	217.5	lowest	15%
Champion Lakes	18.5		22.9	21st	7.6		2.7	25th	30.2
Garden Island HSF	17.8	0.0	22.3	30th	9.9	-1.2	5.6	13th	40.6	114.4	v low	35%
Gingin Aero	18.9	+0.7	24.2	21st	3.6	-2.7	-2.7	25th	44.6	123.7	v low	36%
Gosnells City	19.5	+0.9	24.2	30th					35.6	162.0	lowest	22%
Jandakot Aero	18.9	+1.1	23.7	30th	3.8	-3.0	-1.6	25th	34.6	174.5	lowest	20%
Jurien Bay	20.6	+1.2	26.2	21st	6.1	-3.3	0.5	25th	46.9	112.7	v low	42%
Karnet	16.7	+1.3	21.8	21st	4.4	-1.8	-0.5	19th	24.8	218.2	lowest	11%
Lancelin	20.6	+1.5	25.0	30th	8.0	-2.0	3.0	9th	46.4	121.1	v low	38%
Medina Research Centre	19.4	+1.2	24.0	21st	5.4	-2.9	0.3	25th	39.4	147.9	lowest	27%
Pearce RAAF	18.8	+1.0	23.1	30th	5.6	-2.9	-0.8	25th	23.2	135.2	lowest	17%
Perth Airport	19.2	+1.3	23.8	21st	5.6	-2.4	-0.7	25th	30.6	157.3	lowest	19%
Perth Metro*	19.4	+1.1	23.8	30th	5.2	-2.5	0.4	25th	34.6	165.4	lowest	21%
Rottnest Island	18.0	+0.3	22.1	30th	12.2	-0.1	9.1	18th	54.8	143.9	v low	38%
Swanbourne	19.5	+1.2	24.4	30th	7.8	-1.9	3.9	25th	42.0	145.8	v low	29%
South Coast (district 09A)
Albany	17.2	+1.5	22.1	21st	9.2	+1.1	5.8	9th	80.6	143.6	v low	56%
Albany Airport	16.8		20.2	21st	6.7		2.7	5th	75.2
Albany Airport Comparison	16.6	+0.8	20.1	21st	6.9	-0.6	2.8	5th	55.0	119.9	lowest	46%
Bridgetown	16.1	+0.4	20.2	30th	3.4	-1.0	-2.0	9th	52.8	118.1	v low	45%
Bridgetown Comparison	17.1	+1.3	21.9	30th	3.3	-1.1	-1.5	5th	48.2	146.1	v low	33%
Bunbury	17.5	+0.3	21.6	21st	5.4	-1.7	0.1	18th	55.4	142.9	v low	39%
Busselton Aero	16.8	+0.1	21.0	21st	5.5	-1.3	1.1	9th	49.6	128.9	v low	38%
Cape Leeuwin	17.7	+1.3	21.5	5th	12.0	+0.7	7.1	9th	70.4	181.5	v low	39%
Cape Naturaliste	17.2	+0.9	21.0	5th	10.6	+0.2	5.1	24th	49.8	161.2	lowest	31%
Collie East	16.7		21.3	21st	1.9		-2.4	5th	39.2	122.2	v low	32%
Donnybrook	17.6	+1.1	22.0	30th	4.6	-1.1	0.0	9th	57.9	186.3	v low	31%
Dwellingup	16.6	+1.6	21.6	21st	3.2	-2.3	-1.1	19th	53.6	237.0	lowest	23%
Esperance	17.9	+0.8	22.1	21st	8.0	-0.3	4.7	20th	69.6	96.4	low	72%
Esperance Aero	16.5	+0.2	20.2	6th	6.8	-0.8	3.2	20th	67.0	78.9	average	85%
Harvey	17.7	+0.6	21.5	21st	6.2	-1.3	0.5	24th	40.4	149.1	v low	27%
Hopetoun North	18.1	0.0	23.5	31st	7.7	0.0	3.0	5th	129.8	69.8	v high	186%
Mandurah	17.8	+0.4	21.3	21st	9.6	-1.1	5.8	19th	55.8	117.1	low	48%
Manjimup	15.6	+1.3	20.4	30th	6.6	+0.2	1.8	9th	42.0	174.5	lowest	24%
North Walpole	16.4		20.1	21st	8.5		4.2	9th	99.8
Pemberton	16.3	+1.3	20.5	30th	7.5	+0.3	3.3	24th	86.1	209.6	v low	41%
Rocky Gully	15.3	+0.7	18.9	21st	6.3	-0.1	0.3	9th	53.4	96.0	v low	56%
Windy Harbour	17.2	+0.5	21.7	30th	9.0	+0.4	2.5	9th	115.8	190.9	low	61%
Witchcliffe	16.5	+0.1	20.4	21st	6.9	-1.1	1.3	9th	82.6	183.3	v low	45%
North Central (district 10)
Bencubbin	17.1	+0.7	22.1	21st	4.8	-1.2	0.1	19th	15.0	45.4	v low	33%
Cunderdin Airfield	18.0	+1.1	23.6	21st	1.9	-2.8	-2.9	19th	4.2	48.9	v low	9%
Kellerberrin	17.3	+0.9	22.0	21st					9.7	51.6	lowest	19%
Merredin	17.5	+1.2	22.0	6th	3.9	-1.6	-2.5	25th	15.9	50.6	v low	31%
Northam	18.0	+1.1	22.0	30th	1.9	-3.5	-2.9	25th	13.6	82.4	lowest	17%
York	17.3	+0.4	21.5	30th	0.8	-3.0	-3.1	25th	14.6	70.5	v low	21%
South Central (district 10A)
Beverley	17.7	+0.9	22.0	21st	1.8	-3.4	-2.6	19th	13.4	77.5	lowest	17%
Brookton	16.6	+0.5	20.8	21st	2.0	-2.6	-2.1	19th	10.5	84.7	lowest	12%
Corrigin	16.4	+1.1	20.5	5th	1.9	-3.0	-2.3	19th	16.4	59.4	v low	28%
Hyden	17.6	+1.2	22.0	21st	2.3	-2.4	-3.5	19th	12.9	47.7	v low	27%
Jacup	16.2	+0.6	21.1	5th	4.6	-1.0	1.1	18th	53.6	50.7	average	106%
Katanning	15.2	+0.5	19.1	21st	5.1	-0.9	1.1	18th	22.8	64.6	v low	35%
Katanning Comparison	16.0	+1.4	20.2	21st					24.1	75.2	v low	32%
Lake Grace	16.1	+0.5	20.3	6th	3.8	-1.5	-1.1	18th	18.0	38.0	v low	47%
Lake Grace Comparison	16.2	+0.8	20.4	22nd	4.0	-1.6	-0.8	18th	13.6	47.4	v low	29%
Narembeen	17.6	+1.1	21.8	21st	3.4	-2.1	-1.6	25th	13.7	49.6	v low	28%
Narrogin	16.0	+1.4	20.5	21st	2.9	-2.4	-1.2	9th	8.8	87.1	lowest	10%
Newdegate Research Station	16.2	+1.1	20.3	21st	2.6	-1.5	-2.6	20th	6.4	47.6	v low	13%
Ongerup	15.9	+1.0	20.0	5th	4.3	-1.5	-0.5	18th	38.5	49.7	average	77%
Pingelly	16.4	+1.1	20.3	21st	3.6	-2.0	-1.0	19th	9.6	81.6	lowest	12%
Ravensthorpe	16.9	+0.6	21.4	31st	6.3	-0.4	2.3	18th	73.7	47.0	high	157%
Wagin	16.1	+0.8	20.9	21st	3.2	-2.4	-1.0	9th	17.8	70.9	lowest	25%
Wandering	16.0	+0.3	19.8	21st	1.1	-2.9	-2.5	9th	19.6	94.7	v low	21%
Eucla (district 11)
Balladonia	18.1	+0.5	23.0	7th	3.2	-1.6	-0.9	19th	24.6	20.4	average	121%
Eucla	18.1	+0.1	22.7	24th	5.8	-1.2	1.4	7th	22.8	25.2	average	90%
Eyre	19.1	+1.0	23.5	31st	3.0	-2.8	-3.5	20th	41.5	34.4	average	121%
Forrest	18.9	+0.3	23.3	24th	2.5	-2.7	-1.9	1st	1.4	17.0	v low	8%
Red Rocks Point	18.6		23.9	8th	6.6		2.6	7th	13.8
South East (district 12)
Bulga Downs	19.4		23.2	31st	3.1		-1.3	7th	11.5	24.1	average	48%
Kalgoorlie-Boulder Airport	16.8	+0.1	22.4	31st	3.7	-1.3	0.1	19th	33.4	25.0	high	134%
Laverton Aero	18.2	-0.1	22.2	31st	3.9	-2.1	-1.0	14th	1.8	17.8	low	10%
Leinster Aero	18.6	-0.1	22.0	31st	4.1	-2.1	1.0	5th	1.6	19.5	low	8%
Leonora	18.0	-0.4	22.1	31st	3.7	-2.4	0.1	16th	9.9	18.9	average	52%
Leonora Aero	18.5		22.8	31st	3.4		-0.8	16th	4.6
Munglinup West	16.6	0.0	22.1	6th	6.0	-0.7	2.9	19th	81.2	42.2	v high	192%
Norseman Aero	17.3	0.0	22.7	31st	1.4	-2.9	-3.0	20th	15.8	20.0	average	79%
Salmon Gums Res.Stn.	17.0	+1.0	22.5	31st	2.9	-1.7	-2.8	21st	30.8	36.9	average	83%
Southern Cross Airfield	17.0	+0.5	21.8	31st	1.4	-2.1	-2.9	25th	13.0	34.6	v low	38%
North East (district 13)
Balgo Hills	24.1	-2.4	29.5	11th	10.6	-1.9	6.5	3rd	0	8.5	lowest	0%
Carnegie									0	11.5	lowest	0%
Giles Meteorological Office	19.1	-0.9	24.7	11th	3.1	-3.8	0.3	3rd	0	11.7	lowest	0%
Telfer Aero	24.8	-0.5	29.2	18th	8.5	-2.2	4.4	4th	0	13.2	lowest	0%
Warburton Airfield	19.8	-0.9	25.0	24th	2.0	-3.8	-4.2	8th	0	12.9	lowest	0%
Wiluna	20.3	+0.9	25.4	10th					0.5	15.1	low	3%
Offshore Islands (district 200)
Christmas Island Aero	26.3	+0.1	26.8	6th	22.7	+0.2	21.6	26th	12.6	94.8	low	13%
Cocos Island Airport	28.7	+0.7	29.7	4th	25.0	+1.0	21.2	14th	165.4	213.6	average	77%
Varanus Island	23.3	-1.0	26.1	25th	18.9	-1.0	17.0	6th	0	10.4	v low	0%

Extremes Maps Records Summaries Important notes the top

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Further information

Western Australia Climate Services Centre
Bureau of Meteorology
Phone (08) 9263 2222
Email climatedata@bom.gov.au

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