Thursday, 1 July 2010 - Monthly Climate Summary for Western Australia - Product code IDCKGC11R0

Western Australia in June 2010: A very dry June for WA

• Rainfall very much below average for WA and the 3rd driest June for southwest.
• Mean maximum temperature above average for WA.
• Mean minimum temperature above average for WA, but below average for southwest

Details Extremes Maps Records Summaries Important notes the top

Rainfall

Much of WA experienced below to very much below average rainfall for June 2010, particularly in parts of the Southwest Land Division (SWLD). Averaged across the state, June rainfall was very much below average (see June rainfall totals & decile maps), whilst it was the third driest June on record when averaged over the southwest (southwest of a line from Jurien to Bremer Bay). The only significant part of WA to see above average rainfall in June was the far west Pilbara and neighbouring Gascoyne.

A middle level cloud band brought heavy rainfall to the far west Pilbara on the 15th and 16th, with reports of over 100 mm near Exmouth Gulf. A daily total of 120 mm at Winning (west Pilbara) was the highest daily rainfall in WA for June 2010, and also a record daily rainfall for June at Winning.

Apart from coastal areas in the South and Southeast Coastal districts, most of the SWLD received less than half their normal June rainfall as the result of only a few cold fronts passing through the region. Numerous sites in the SWLD experienced their driest June on record.

Maximum temperature

Above to very much above average mean maximum temperatures were recorded in the west Kimberley, Pilbara, north Gascoyne and adjacent Interior. Pockets of up to 4 °C above normal mean maxima were reported in the inland Pilbara, and several sites in the district recorded their highest mean maximum temperature for June on record. Below average mean maximum temperatures up to 2.0 °C cooler than normal occurred in the east Kimberley (see June maximum temperature decile & anomaly maps). When averaged over the whole state, however, June 2010 was above average.

A high pressure system over central Australia brought unusually warm temperatures in the Pilbara and west Kimberley from the 18th to 20th with temperatures above 35 °C reported. Onslow Airport, Roebourne and Bidyadanga all recorded their highest June daily maximum temperature on record during this period.

Minimum temperature

Above to very much above average mean minimum temperatures were recorded in a broad band across the southwest Kimberley, Pilbara, northern Gascoyne, northern Goldfields, and Interior, with up to 4 °C above normal mean minima in parts of the west Pilbara, northern Gascoyne and far east Interior (see June minimum temperature decile & anomaly maps). Onslow Airport recorded their warmest June nights on record with a mean minimum temperature of 19.6 °C, which is 0.5 °C above the previous record.

A small part of north Kimberley, as well as most of SWLD saw below to very much below average mean minima, with up to 3 °C below normal mean minima in the Lower West and Southwest districts. When averaged over the whole state, June 2010 was above average, however, the southwest (southwest of the line from Jurien to Bremer Bay) was below average.

In the last week of June, most of the southern half of the state experienced some very cold nights. Locations in the SWLD, southern Goldfields and Eucla recorded their lowest temperature for June on record, and Norseman Aerodrome in the Goldfields recorded -6.0 °C on the 27th, which was the equal coldest June night on record for WA, equal the -6.0 °C at Collie East on the 17th June 2006.

Details Extremes Records Summaries Important notes the top

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Extremes in June 2010
Hottest day	36.2 °C at Bidyadanga on the 19th
Warmest days on average	32.1 °C at Bidyadanga
Coolest days on average	15.3 °C at Rocky Gully
Coldest day	11.1 °C at Rocky Gully on the 24th
Coldest night	-6.0 °C at Norseman Aero on the 27th
Coolest nights on average	2.6 °C at Jarrahwood
Warmest nights on average	24.2 °C at Troughton Island 19.5°C at Truscott (mainland)
Warmest night	26.4 °C at Troughton Island on the 2nd 26.2 °C at Kuri Bay(mainland) on the 3rd
Wettest overall	154.6 mm at Walpole
Wettest day	120.0 mm at Winning on the 16th
Highest wind gust	93 km/h at Cape Naturaliste on the 14th

Details Extremes Records Summaries Important notes the top

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Record highest June daily rainfall
	Highest daily rainfall in June 2010 (mm)		Previous highest for June		Years of record
Winning	120.0	on the 16th	84.1	on the 15th in 1948	68
Learmonth Airport	95.0	on the 16th	89.6	on the 4th in 2002	57

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Record lowest total June rainfall
	Total rainfall for June 2010 (mm)	Previous lowest for June		Years of record	Average for June
Bridgetown Comparison	29.4	32.0	in 2006	124	145.5
Boyanup	59.8	73.1	in 1993	110	194.8
Kondut	12.2	16.6	in 2006	80	59.5
Wongan Hills Res.Station	16.7	19.3	in 1978	73	62.5
Gabbin	12.4	13.2	in 1952	67	56.4
Gidgegannup	40.2	59.0	in 1958	46	182.7
Lancelin	31.0	34.8	in 2006	45	123.7
Jurien Bay	23.0	25.8	in 2006	41	108.4
Spring Valley	18.4	22.0	in 1984	40	58.8
Jarrahwood	44.0	52.8	in 2006	35	163.1

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Record highest June temperature
	Highest temperature in June 2010 (°C)		Previous highest for June		Years of record	Average for June
Roebourne	35.7	on the 18th	35.4	on the 3rd in 1998	53	27.0
Bidyadanga	36.2	on the 19th	35.8	on the 5th in 1999	52	29.7
Onslow Airport	33.2	on the 20th	32.3	on the 13th in 2004	45	25.8

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Record highest June mean daily maximum temperature
	Mean daily maximum temperature for June 2010 (°C)	Previous highest for June		Years of record	Average for June
Roebourne	30.1	29.6	in 2004	90	27.0
Port Hedland Airport	29.9	29.8	in 1996	61	27.5
Wittenoom	27.1	26.9	in 1962	55	24.4
Mardie	30.7	30.6	in 1988	54	28.1
Bidyadanga	32.1	31.9	in 1970	51	29.7
Onslow Airport	28.9	28.5	in 2004	44	25.8

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Record lowest June temperature
	Lowest temperature in June 2010 (°C)		Previous lowest for June		Years of record	Average for June
Corrigin	-4.0	on the 26th	-3.8	on the 1st in 1964	62	5.9
Dalwallinu Comparison	-0.3	on the 26th	0.0	on the 22nd in 1981	54	7.9
Norseman	-4.6	on the 27th	-2.8	on the 16th in 1960	54	6.3
Balladonia	-2.3	on the 26th	-2.2	on the 14th in 2006	44	5.8
Brookton	-2.9	on the 26th	-2.6	on the 26th in 1973	43	5.5
Wongan Hills	-0.8	on the 25th	-0.5	on the 30th in 1990	43	7.7
Narembeen	-2.6	on the 25th	-1.2	on the 18th in 1985	38	6.4

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Record highest June mean daily minimum temperature
	Mean daily minimum temperature for June 2010 (°C)	Previous highest for June		Years of record	Average for June
Onslow Airport	16.9	16.4	in 1965	44	14.1

Details Extremes Records Summaries Important notes the top

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Summary statistics for June 2010
	Maximum temperatures for June (°C)				Minimum temperatures for June (°C)				Rainfall for June (millimetres)
	Mean for June 2010	Diff from average	Highest for June 2010		Mean for June 2010	Diff from average	Lowest for June 2010		Total for June 2010	Average for June	Rank of June 2010	Fraction of June average
North Kimberley (district 01)
Doongan	28.5	-0.6	31.4	26th			8.1	23rd	0	6.2	v low	0%
Kalumburu	30.6	-0.8	33.5	26th	14.9	+0.8	10.6	5th	0	4.1	v low	0%
Mount Elizabeth	28.5	+0.4	31.1	26th	9.5	+0.4	5.1	23rd	0	13.4	lowest	0%
Troughton Island	29.4	+0.4	30.6	2nd	24.2	+0.9	23.0	11th	0	8.1	v low	0%
Truscott	29.8		32.3	25th	19.5		16.1	7th	0
Wyndham	31.0	-0.1	34.5	19th	16.9	-0.8	14.4	23rd	0	4.0	lowest	0%
Wyndham Aero	31.2		34.7	25th	16.2		12.0	5th	0	4.1	v low	0%
East Kimberley (district 02)
Argyle Aerodrome	28.6	-0.7	32.1	26th	15.8	-0.3	13.3	21st	0	4.9	v low	0%
Halls Creek Airport	26.7	-0.6	30.2	26th	14.3	+0.6	11.3	4th	0	5.6	lowest	0%
Kununurra Aero	29.4	-0.9	33.0	26th	14.9	-1.2	11.4	8th	0	3.8	lowest	0%
Warmun	28.5	-1.0	32.5	25th	13.9	+0.1	10.5	7th	0	6.4	lowest	0%
West Kimberley (district 03)
Bidyadanga	32.1	+2.4	36.2	19th	17.3	+1.9	14.0	24th	0	19.8	lowest	0%
Broome Airport	31.1	+2.0	34.5	19th	16.4	+1.2	10.9	24th	0	18.0	lowest	0%
Curtin Aero	31.7	+1.0	34.7	19th	17.2	+0.5	14.5	19th	0	9.5	v low	0%
Cygnet Bay	29.6	+0.9	33.0	22nd	16.8	+0.2	12.0	24th	0	19.3	lowest	0%
Derby Aero	30.9	+0.4	33.6	19th	16.5	+0.7	12.6	21st	0	8.0	lowest	0%
Fitzroy Crossing Aero	31.3	+1.1	34.0	19th	14.2	+1.5	8.6	23rd	0	9.3	v low	0%
West Roebuck	32.0	+1.6	35.4	19th	15.6	+3.2	11.5	12th	0	11.4	v low	0%
De Grey (district 04)
Bedout Island	27.0		29.0	24th	21.9		19.0	30th
Karratha Aero	28.3	+1.9	32.8	18th	17.1	+2.2	12.1	30th	0	29.5	lowest	0%
Legendre Island	26.4		29.0	19th	20.7		18.0	30th
Mandora	30.9	+1.9	34.6	19th			12.6	24th	0	17.1	lowest	0%
Marble Bar	28.8		33.6	18th	15.4		11.7	23rd	0	14.9	v low	0%
Pardoo Station	30.2	+2.0	33.8	19th	15.8	+1.1	10.5	3rd	0	26.9	lowest	0%
Port Hedland Airport	29.9	+2.4	34.5	18th	16.7	+2.6	12.4	27th	0.2	21.2	v low	1%
Roebourne	30.1	+3.1	35.7	18th	17.4	+2.1	12.7	27th	0	29.0	lowest	0%
Roebourne Aero	29.6		35.2	18th	15.6		11.2	27th	0	18.6	v low	0%
Fortescue (district 05)
Barrow Island Airport	25.6	+1.4	29.2	20th	20.6	+2.1	16.7	26th	0.6	21.4	low	3%
Learmonth Airport	26.3	+1.5	29.6	1st	15.8	+2.8	10.1	30th	140.0	41.9	v high	334%
Mardie	30.7	+2.6	33.8	20th	16.8	+3.0	11.8	1st	0	36.9	lowest	0%
Onslow	28.3	+2.8	32.6	20th	17.5	+4.3	12.0	28th	10.8	43.8	average	25%
Onslow Airport	28.9	+3.1	33.2	20th	16.9	+2.8	12.3	28th	9.6	44.7	average	21%
Tom Price	26.0	+2.8	31.2	18th			10.6	14th	0	25.5	lowest	0%
Wittenoom	27.1	+2.7	32.1	17th	15.6	+2.8	11.6	29th	2.0	28.3	low	7%
West Gascoyne (district 06)
Carnarvon Airport	23.6	+0.3	29.6	2nd	13.8	+1.5	7.9	27th	40.8	47.6	average	86%
Denham	22.4	-0.5	29.0	2nd	14.8	+1.0	8.6	28th	35.2	54.3	average	65%
Emu Creek Station	28.0	+2.1	31.9	22nd	16.1	+3.6	11.6	1st	44.5	37.3	average	119%
Gascoyne Junction	24.8	+1.0	30.0	3rd	13.7	+3.3	7.5	27th	28.2	31.8	average	89%
Shark Bay Airport	23.2		29.5	2nd	12.9		4.9	27th	30.2	37.0	average	82%
East Gascoyne (district 07)
Newman Aero	24.8	+1.9	31.4	17th	10.9	+4.4	5.9	29th	0.2	14.2	low	1%
Paraburdoo Aero	27.6	+2.6	32.4	20th	14.8	+4.1	8.7	1st	2.2	22.7	low	10%
Murchison (district 07A)
Meekatharra Airport	20.2	+0.6	27.8	22nd	10.4	+1.7	3.8	26th	13.0	30.6	average	42%
Mount Magnet Aero	19.1	-0.8	26.8	15th	8.7	+0.6	0.5	28th	25.2	17.6	high	143%
North Coast (district 08)
Carnamah	18.9	-0.1	25.0	14th	8.5	-0.2	2.5	27th	22.6	76.4	v low	30%
Dalwallinu	17.8	-0.8	23.7	14th	6.5	-0.6	0.3	26th	16.8	30.8	low	55%
Dalwallinu Comparison	18.0	-0.2	23.7	14th	6.3	-1.6	-0.3	26th	18.0	63.9	v low	28%
Geraldton Airport	20.7	-0.2	26.8	13th	9.9	-1.1	1.5	27th	24.8	99.3	v low	25%
Kalbarri	22.9	+0.1	29.2	2nd	11.2	+0.2	1.2	28th	48.6	81.5	low	60%
Morawa Airport	19.4	-0.7	25.2	3rd	7.0	-0.3	-1.6	26th	19.8	36.0	low	55%
Mullewa	20.1	+0.2	26.0	3rd	9.0	+0.5	2.4	26th	30.8	64.6	low	48%
North Island	21.7		25.5	13th	16.6		12.5	22nd	33.6
Wongan Hills	17.9	-0.2	23.3	13th	6.5	-1.2	-0.8	25th	18.8	71.4	v low	26%
Central Coast (district 09)
Badgingarra Research Stn	17.8	-0.9	23.9	13th	8.0	-0.4	1.4	27th	26.4	104.0	v low	25%
Bickley	16.0	0.0	21.1	13th	7.8	-0.2	2.4	25th	65.4	205.3	v low	32%
Champion Lakes	18.5		23.0	13th	9.2		3.0	25th	56.4
Garden Island HSF	18.5		23.0	13th	11.2		5.8	25th	54.6
Gingin Aero	19.0	-0.6	24.8	13th	4.9	-2.5	-3.6	26th	41.6	118.7	low	35%
Gooseberry Hill	17.6	+0.2	22.8	13th	9.7	-0.5	5.0	25th
Gosnells City	19.7	+0.2	25.0	13th	8.2	-1.6	0.5	26th	60.5	175.1	v low	35%
Jandakot Aero	19.1	+0.3	24.3	13th	5.5	-1.9	-2.5	26th	65.6	161.1	v low	41%
Jurien Bay	20.5	0.0	24.0	13th	8.3	-2.0	1.8	25th	23.0	108.4	lowest	21%
Karnet	16.7	+0.4	21.5	13th	5.9	-1.4	-1.0	25th	55.0	215.9	v low	25%
Lancelin	20.4	+0.3	24.7	13th	9.0	-1.9	2.5	27th	31.0	123.7	lowest	25%
Medina Research Centre	19.4	+0.1	24.7	13th	7.4	-1.6	0.0	26th	60.5	147.7	v low	41%
Pearce RAAF	19.0	+0.2	24.4	13th	7.1	-2.3	-0.4	25th	28.0	136.5	v low	21%
Perth Airport	19.3	+0.4	24.7	13th	7.4	-1.6	0.2	26th	43.8	162.7	v low	27%
Perth Metro	19.0	-0.3	24.6	13th	7.1	-1.5	-0.6	26th	51.4	176.7	v low	29%
Rottnest Island	18.1	-0.6	22.4	13th	13.3	+0.1	8.9	24th	72.0	109.4	low	66%
Swanbourne	19.2	-0.1	24.3	13th	9.5	-1.1	2.9	25th	57.8	127.1	v low	45%
South Coast (district 09A)
Albany	17.2	+0.7	21.9	13th	9.4	+0.4	5.5	10th	108.0	133.0	low	81%
Albany Airport	16.6	0.0	20.8	13th	7.3	-0.8	0.9	10th	87.4	105.1	low	83%
Bridgetown	16.7	+0.1	20.9	21st	3.1	-2.0	-2.6	10th	33.4	113.2	v low	30%
Bridgetown Comparison	17.6	+0.9	22.0	13th	3.2	-2.0	-2.6	10th	29.4	145.5	lowest	20%
Bunbury	18.0	-0.4	21.0	6th	5.8	-2.3	-0.1	25th	63.4	147.1	low	43%
Busselton	17.7	-0.5	20.3	22nd	7.0	-1.9	2.0	10th	83.8	133.6	low	63%
Busselton Aero	17.4	-0.4	20.1	22nd	5.7	-1.9	-0.1	10th	57.0	138.2	v low	41%
Cape Leeuwin	18.1	+0.8	21.3	13th	12.6	+0.5	8.6	24th	75.0	177.6	v low	42%
Cape Naturaliste	17.6	+0.3	20.7	12th	10.6	-0.9	5.9	24th	94.4	166.6	low	57%
Collie East	17.6		21.9	13th	3.2		-3.0	11th	41.2
Donnybrook	17.9	+0.5	22.7	13th	5.8	-0.8	0.5	25th	57.0	192.1	v low	30%
Dwellingup	16.6	+0.7	21.0	13th	4.9	-1.6	-2.0	25th	98.8	243.9	v low	41%
Esperance	18.1	+0.1	22.2	14th	9.1	0.0	4.2	26th	70.8	81.3	average	87%
Esperance Aero	17.0	-0.2	21.8	14th	8.3	-0.1	3.7	26th	53.4	67.7	average	79%
Harvey	18.4		22.5	14th	7.4		1.0	30th	65.6	144.3	low	45%
Hopetoun North	18.0	-1.2	22.1	13th	8.8	+0.3	3.4	11th	52.2	49.7	average	105%
Jarrahwood	17.6	+0.5	21.0	21st	2.6	-2.7	-3.2	10th	44.0	163.1	lowest	27%
Mandurah	18.3		20.9	12th	10.5		4.9	25th	77.6
Manjimup	16.0	+0.8	20.7	13th	6.6	-0.8	2.2	10th		166.8
North Walpole	16.9		20.7	21st	9.4		3.7	11th
Pemberton	16.9	+1.0	20.6	21st	7.4	-0.7	2.6	11th		192.9
Rocky Gully	15.3	-0.2	20.1	13th	6.5	-1.2	1.4	25th	50.6	85.1	low	59%
Shannon	15.7	0.0	19.7	6th	6.6	-0.9	2.2	10th	70.2	164.6	v low	43%
Windy Harbour	17.7	+0.1	21.3	12th	8.8	-0.6	1.6	10th	144.8	176.2	average	82%
Witchcliffe	17.4	0.0	20.1	20th	7.1	-1.6	-0.7	10th	115.6	169.9	low	68%
North Central (district 10)
Bencubbin	17.5	+0.1	23.6	14th	5.9	-1.3	-1.7	26th		49.7
Cunderdin Airfield	17.9	-0.5	23.4	13th	4.6	-1.2	-3.1	26th	15.6	39.2	v low	40%
Kellerberrin	17.6	+0.1	22.7	14th	4.5	-2.3	-3.0	25th	20.2	54.6	v low	37%
Merredin	17.3	+0.1	22.8	14th	5.1	-1.7	-2.5	27th	21.0	50.0	low	42%
Northam	18.4	+0.5	23.9	13th	4.4	-2.1	-3.5	26th	24.7	80.4	v low	31%
York	18.3	-0.1	23.6	13th	3.7	-0.9	-3.0	25th	26.5	63.5	low	42%
South Central (district 10A)
Beverley	18.2	+0.3	23.4	13th	4.1	-1.9	-3.2	26th	28.6	79.4	v low	36%
Brookton	17.0	-0.1	22.0	13th	4.6	-0.9	-2.9	26th	32.2	87.2	v low	37%
Corrigin	16.8	+0.4	21.6	13th	4.7	-1.2	-4.0	26th	17.2	61.4	v low	28%
Hyden	18.3	+1.0	22.5	13th	5.0	-0.6	-4.0	25th	16.9	50.2	v low	34%
Jacup	16.5	-0.2	21.1	13th	6.5	+0.1	1.2	25th	43.8	40.9	average	107%
Katanning	15.9	-0.1	20.6	13th	6.0	-0.6	-0.2	25th	39.4	59.8	low	66%
Katanning Comparison	16.4	+0.9	21.0	13th	4.5	-2.0	-2.4	11th	38.9	76.5	low	51%
Lake Grace	16.2	-0.8	21.8	13th	6.1	-0.1	-1.1	26th	32.8	32.3	average	102%
Lake Grace Comparison	16.4	-0.1	21.4	13th	6.1	-0.6	-0.6	26th	31.0	51.0	low	61%
Narembeen	17.6	+0.2	21.9	13th	6.0	-0.4	-2.2	26th		52.7
Narrogin	16.1	+0.7	20.5	13th	4.8	-1.6	-1.6	25th	37.8	87.2	v low	43%
Newdegate Research Station	15.9	-0.7	21.7	13th	5.2	+0.2	-2.0	26th		50.7
Ongerup	16.1	+0.2	20.9	13th	6.1	-0.6	-0.4	25th	39.6	49.3	average	80%
Pingelly	16.7	+0.4	21.6	13th	5.6	-1.0	-1.4	26th	33.8	82.6	low	41%
Ravensthorpe	16.8	-0.4	20.4	13th	7.8	0.0	2.8	25th	29.0	43.6	average	67%
Wagin	16.7	+0.4	20.7	13th	4.9	-1.3	-1.2	11th	37.1	73.2	low	51%
Wandering	16.9	0.0	21.2	13th	3.2	-1.2	-2.9	11th	61.0	74.4	low	82%
Eucla (district 11)
Balladonia	18.5	+0.5	26.6	4th	5.4	-0.4	-2.3	26th	21.1	26.2	average	81%
Eucla	18.6	-0.1	26.1	23rd	7.6	-0.6	2.3	13th	26.8	30.2	average	89%
Eyre	19.7	+0.8	27.4	22nd	4.5	-2.4	-3.5	26th	33.8	39.4	average	86%
Forrest	18.4	-0.6	25.8	23rd	6.1	+0.1	1.1	26th	9.0	17.3	average	52%
Red Rocks Point	18.5		24.3	22nd	8.4		3.4	28th	38.8
South East (district 12)
Bulga Downs	19.7		26.2	15th	7.7		1.2	28th	7.4	26.6	low	28%
Kalgoorlie-Boulder Airport	17.4	-0.1	23.4	14th	6.2	0.0	-1.6	27th	6.4	28.5	low	22%
Laverton Aero	17.9	-0.4	26.0	22nd	8.9	+2.2	0.1	28th	7.8	13.8	average	57%
Leinster Aero	18.6	-0.6	27.7	22nd	8.3	+1.1	-0.3	27th	5.2	16.1	average	32%
Leonora	18.4	-0.6	23.8	15th	8.3	+1.0	0.5	28th	12.4	24.9	average	50%
Leonora Aero	18.7		24.6	15th	8.6		-0.3	28th	9.6
Munglinup West	16.6		20.0	14th	7.7		2.1	25th	36.8
Norseman	18.0	+0.6	24.5	14th	4.6	-1.7	-4.6	27th	12.6	30.4	low	41%
Norseman Aero	17.6	-0.5	24.4	14th	3.7	-0.9	-6.0	27th	9.0	14.7	low	61%
Southern Cross Airfield	17.3	-0.6	24.4	14th	3.8	-0.5	-4.2	27th	15.6	27.5	low	57%
Yeelirrie	19.6	+0.1	28.2	22nd	7.6	+2.9	1.1	29th	22.0	23.4	average	94%
North East (district 13)
Balgo Hills	26.1	0.0	30.8	18th	12.9	+0.2	10.0	11th	0	9.5	lowest	0%
Carnegie	21.1	+0.1	27.5	23rd	9.6	+2.7	3.0	14th	11.8	15.2	average	78%
Giles Meteorological Office	20.5	+0.2	26.4	17th	8.4	+0.3	3.7	11th	0	17.5	lowest	0%
Telfer Aero	26.9	+1.6	32.2	19th	13.7	+1.8	10.5	24th	0	12.5	lowest	0%
Warburton Airfield	21.0	+0.3	26.9	23rd	8.6	+2.2	3.1	15th	3.8	18.0	average	21%
Wiluna	19.9	0.0	28.2	22nd	8.7	+2.0	1.9	26th	13.5	24.1	average	56%

Details Extremes Records Summaries Important notes the top

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