Monday, 3 September 2018 - Monthly Climate Summary for Western Australia - Product code IDCKGC11R0
Western Australia in August 2018: Wet in the southwest; cooler nights in the north
Rainfall in August 2018 was close to average for Western Australia as a whole, though rainfall was above average for the South West Land Division and Eucla district. The statewide averaged mean minimum temperature was below average and the lowest in August since 1989, while mean maximum temperature was near average though it was the lowest since 2008.
Rainfall
- Rainfall was near average for WA as a whole, though the driest August since 2014
- Rainfall was above average for the South West Land Division (SWLD) as a whole, the wettest August since 2003
- Many sites in the SWLD, particularly near the coast and in the Central Wheat Belt district had their wettest August on record, or wettest August for at least 20 years
- Widespread moderate rainfall with localised heavy falls were recorded in the southwest WA in early and late August, and some daily rainfall records were broken
Temperatures
- Mean maximum temperature was near average for WA as a whole, though it was the lowest in August for ten years
- Mean maximum temperatures were below average in parts of the Kimberley, Pilbara and northern SWLD; a number of sites had their coolest August on record or coolest since 1997
- Mean minimum temperature was a degree below average for WA as a whole, which was the lowest in August since 1989
- Mean minimum temperatures were below to very much below average across the northern half of the State; several sites in the Kimberley and Pilbara had their coolest August on record or coolest for at least 20 years
- Cold southerly winds swept through south of the State twice in early August, with daily maxima generally in the low 10s on the 4th and 9th, as well as a number of very cold spots of below 10 °C in the South West and Great Southern districts; several records were broken as a result
- Northeasterly winds resulted in warm daily maxima in the mid-20s in the Lower West district on the 19th and 20th, including 24.9 °C, a record at Dwellingup on the 20th
- Two notable events of record cold mornings were observed: firstly in the Goldfields on the 6th with below zero temperatures, and secondly in the Kimberley with daily minima below 10 °C on the 14th–16th
Snow reported on the Bluff Knoll
- Bluff Knoll in the Stirling Ranges recorded snow fall on the 1st and 9th
Further information
- Media
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
Extremes Maps Records Summaries Important notes the top
Extremes in August 2018 | |
---|---|
Hottest day | 36.8 °C at Kalumburu on the 27th |
Warmest days on average |
34.5 °C at Kalumburu |
Coolest days on average |
14.5 °C at Katanning 14.5 °C at Shannon |
Coldest day | 8.4 °C at Shannon on the 9th |
Coldest night | -3.7 °C at Norseman Aero on the 18th |
Coolest nights on average | 3.4 °C at Southern Cross Airfield |
Warmest nights on average | 22.5 °C at Troughton Island |
Warmest night | 24.7 °C at Troughton Island on the 31st |
Warmest on average overall | 25.9 °C at Troughton Island |
Coolest on average overall | 9.6 °C at Newdegate Research Station |
Wettest overall | 303.6 mm at Bickley |
Wettest day | 64.2 mm at Margaret River on the 30th |
Strongest wind gust | 113 km/h at Cape Leeuwin on the 1st |
xtremes Maps Records Summaries Important notes the top
Maps | |||
---|---|---|---|
Observed | Anomaly | Decile rank | |
Total rainfall |
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Mean daily maximum temperatures |
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Mean daily minimum temperatures |
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Click on a map to show it full size in a pop-up window
Record highest August daily rainfall | ||||||
---|---|---|---|---|---|---|
New record (mm) |
Old record |
Years of record |
||||
Doongin Peak | 29.8 | on the 29th | 29.2 | on the 3rd in 1932 | 112 | |
Wilgarrup | 51.4 | on the 9th | 50.5 | on the 26th in 1962 | 112 | |
Gidgegannup | 58.4 | on the 4th | 54.6 | on the 18th in 1989 | 59 | |
Bakers Hill | 40.6 | on the 4th | 38.2 | on the 11th in 1992 | 53 | |
Erinair | 35.0 | on the 22nd | =35.0 | on the 5th in 1994 | 51 | |
Munglinup | 32.0 | on the 5th | 27.0 | on the 1st in 2017 | 28 |
Record highest August total rainfall | |||||
---|---|---|---|---|---|
New record (mm) |
Old record |
Years of record |
Average for August |
||
Dalyup Park | 172.0 | 162.3 | in 1968 | 94 | 80.5 |
Roleystone | 253.7 | 246.5 | in 1965 | 52 | 157.9 |
Erinair | 163.2 | 146.5 | in 1968 | 51 | 68.2 |
Adina | 185.6 | 181.2 | in 1984 | 50 | 100.4 |
Esperance | 149.0 | 145.4 | in 1984 | 50 | 84.3 |
Mount Howick | 147.6 | 131.4 | in 1997 | 50 | 66.0 |
Esperance Aero | 158.0 | 126.0 | in 1997 | 48 | 71.0 |
The Duke | 159.4 | 138.8 | in 2016 | 42 | 87.7 |
Munglinup | 133.0 | 124.2 | in 1992 | 28 | 62.1 |
Perth Metro | 186.0 | 175.6 | in 2004 | 26 | 126.0 |
Morawa Airport | 64.0 | 63.6 | in 2003 | 21 | 34.9 |
Bridgetown | 200.8 | 200.2 | in 2017 | 20 | 122.5 |
Highest August total rainfall for at least 20 years | |||||
---|---|---|---|---|---|
Observed (mm) |
Most recent higher |
Average for August |
|||
Mount Barker | 151.6 | 164.2 | in 1945 | 89.7 | |
Pearce RAAF | 194.6 | 225.8 | in 1945* | 106.2 | |
Newbicup | 145.2 | 153.3 | in 1963 | 87.3 | |
Wongan Hills | 100.4 | 126.7 | in 1963* | 52.0 | |
New Norcia | 132.0 | 149.8 | in 1963* | 78.1 | |
Pleasant Valley | 172.2 | 179.1 | in 1968* | 73.0 | |
Telina Downs | 165.0 | 175.7 | in 1968* | 70.0 | |
Oake Marsh Farm | 176.2 | 227.7 | in 1968* | 78.9 | |
Bickley | 303.6 | 307.6 | in 1977 | 176.1 | |
Jandakot Aero | 195.6 | 198.0 | in 1976* | 129.0 | |
Cowaramup | 245.5 | 253.6 | in 1983 | 163.8 | |
Eyre | 67.4 | =67.4 | in 1984 | 29.8 | |
Maida Vale | 197.4 | 219.2 | in 1977* | 130.2 | |
Karragullen North | 256.1 | 264.4 | in 1977* | 166.7 | |
Wilgarrup | 186.2 | 194.2 | in 1985* | 134.1 | |
Bolgart | 107.0 | 118.0 | in 1992 | 63.3 | |
Codg Codgen | 75.6 | 118.2 | in 1992 | 39.2 | |
Margaret River | 233.8 | 238.4 | in 1992 | 162.3 | |
Narrogin | 94.8 | 121.3 | in 1992 | 67.9 | |
Northampton | 103.6 | 197.2 | in 1992 | 73.0 | |
Nunile | 94.2 | 112.8 | in 1992 | 62.4 | |
Perth Airport | 172.8 | 193.2 | in 1992 | 118.9 | |
Tammin | 73.2 | 112.9 | in 1992 | 42.9 | |
Chidlow | 198.5 | 213.6 | in 1992* | 138.7 | |
Dandaragan West | 161.5 | 164.2 | in 1992* | 96.2 | |
Doongin Peak | 80.0 | 99.7 | in 1992* | 41.5 | |
Esperance Downs Research Stn | 121.0 | 122.6 | in 1992* | 61.8 | |
Northam | 95.1 | 101.0 | in 1992* | 61.0 | |
Telenning Hill | 66.8 | 93.7 | in 1992* | 42.3 | |
Naraling | 92.6 | 162.6 | in 1992* | 55.2 | |
Gidgegannup | 247.2 | 256.0 | in 1992* | 139.1 | |
Hines Hill | 53.6 | 54.0 | in 1994* | 31.8 | |
Bakers Hill | 152.5 | 167.2 | in 1992* | 88.7 | |
Bremer Bay | 132.7 | 154.6 | in 1992* | 78.2 | |
Mosman Park | 144.6 | 163.2 | in 1992* | 107.0 | |
Jaroma | 65.5 | 66.2 | in 1998 | 48.3 | |
Manjimup | 185.6 | 208.6 | in 1998 | 145.6 |
* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported
Record highest August temperature | ||||||
---|---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for August |
|||
Dwellingup | 24.9 | on the 20th | 24.7 | on the 26th in 1998 | 59 | 15.7 |
Record lowest August daily maximum temperature | ||||||
---|---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for August |
|||
Leinster Aero | 12.8 | on the 5th | 13.2 | on the 21st in 1996 | 25 | 21.7 |
Paraburdoo Aero | 17.6 | on the 2nd | 18.7 | on the 24th in 2010 | 23 | 27.7 |
Katanning | 9.8 | on the 4th | 9.9 | on the 8th in 2016 | 20 | 15.4 |
Record lowest August mean daily maximum temperature | |||||
---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for August |
||
Warmun | 29.3 | 29.9 | in 2014 | 56 | 32.3 |
Curtin Aero | 31.5 | 31.6 | in 2014 | 26 | 33.2 |
Morawa Airport | 18.6 | 18.7 | in 2004 | 21 | 20.3 |
Lowest August mean daily maximum temperature for at least 20 years | |||||
---|---|---|---|---|---|
Observed (°C) |
Most recent lower |
Average for August |
|||
Derby Aero | 31.3 | 30.3 | in 1978* | 32.7 | |
Port Hedland Airport | 28.5 | =28.5 | in 1997 | 29.3 |
* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported
Record highest August daily minimum temperature | ||||||
---|---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for August |
|||
Paynes Find | 17.4 | on the 20th | 16.8 | on the 9th in 2002 | 39 | 6.0 |
Record lowest August temperature | ||||||
---|---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for August |
|||
Giles Meteorological Office | -1.4 | on the 3rd | -0.6 | on the 21st in 1968 | 63 | 8.7 |
Ongerup | -1.0 | on the 18th | -0.8 | on the 31st in 2005 | 51 | 5.9 |
Derby Aero | 6.1 | on the 15th | 6.6 | on the 18th in 2014 | 34 | 15.9 |
Kununurra Aero | 6.1 | on the 15th | 6.3 | on the 17th in 2014 | 32 | 15.6 |
Warburton Airfield | -3.4 | on the 6th | -3.0 | on the 4th in 2000 | 29 | 7.2 |
Curtin Aero | 4.2 | on the 16th | 6.9 | on the 2nd in 2012 | 27 | 15.8 |
Laverton Aero | -1.5 | on the 6th | -1.0 | on the 9th in 2000 | 27 | 7.2 |
Jacup | -1.2 | on the 18th | -1.0 | on the 30th in 1995 | 26 | 5.7 |
Karratha Aero | 8.0 | on the 3rd | = 8.0 | on the 12th in 1995 | 26 | 14.3 |
Argyle Aerodrome | 9.8 | on the 14th | = 9.8 | on the 16th in 2014 | 25 | 17.4 |
Leinster Aero | -0.4 | on the 6th | = -0.4 | on the 3rd in 2017 | 25 | 7.7 |
Thevenard Island | 10.9 | on the 8th | = 10.9 | on the 21st in 2008 | 24 | 17.4 |
Fitzroy Crossing Aero | 4.5 | on the 15th | 5.0 | on the 5th in 2000 | 22 | 13.7 |
Kalumburu | 6.8 | on the 15th | 7.0 | on the 18th in 1999 | 20 | 14.6 |
Record lowest August mean daily minimum temperature | |||||
---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for August |
||
Mandora | 9.7 | 10.6 | in 1977 | 55 | 13.2 |
Telfer Aero | 9.8 | 10.5 | in 2000 | 44 | 12.6 |
Derby Aero | 11.9 | 12.0 | in 2012 | 33 | 15.9 |
Karratha Aero | 12.4 | 12.5 | in 2000 | 25 | 14.3 |
Thevenard Island | 16.2 | 16.5 | in 2008 | 23 | 17.4 |
Fitzroy Crossing Aero | 10.8 | 11.4 | in 2012 | 21 | 13.7 |
Lowest August mean daily minimum temperature for at least 20 years | |||||
---|---|---|---|---|---|
Observed (°C) |
Most recent lower |
Average for August |
|||
Port Hedland Airport | 11.0 | 10.5 | in 1961 | 13.2 | |
Mardie | 10.8 | 9.9 | in 1986 | 12.5 | |
Broome Airport | 11.5 | 10.8 | in 1994 | 14.9 | |
Bidyadanga | 13.4 | 11.9 | in 1994* | 14.9 | |
Onslow Airport | 12.6 | 12.5 | in 1972* | 13.6 |
* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported
Record lowest August mean temperature | |||||
---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for August |
||
Broome Airport | 20.4 | 21.1 | in 1986 | 79 | 22.6 |
Mandora | 19.7 | 20.1 | in 1986 | 55 | 22.1 |
Telfer Aero | 18.3 | = 18.3 | in 1986 | 44 | 20.5 |
Derby Aero | 21.6 | 22.5 | in 2012 | 33 | 24.3 |
Kununurra Aero | 22.5 | = 22.5 | in 2014 | 31 | 24.2 |
Curtin Aero | 22.3 | 23.0 | in 2004 | 26 | 24.5 |
Karratha Aero | 19.7 | 20.2 | in 2000 | 25 | 21.3 |
Fitzroy Crossing Aero | 21.2 | 21.7 | in 2014 | 21 | 23.5 |
Lowest August mean temperature for at least 20 years | |||||
---|---|---|---|---|---|
Observed (°C) |
Most recent lower |
Average for August |
|||
Learmonth Airport | 18.0 | 17.2 | in 1986 | 19.3 | |
Port Hedland Airport | 19.8 | 19.6 | in 1986 | 21.2 | |
Onslow Airport | 19.6 | 18.9 | in 1972* | 20.5 |
* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported
Extremes Maps Records Summaries Important notes the top
Summary statistics for August 2018 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
Mean for August 2018 |
Diff from average |
Highest for August 2018 |
Mean for August 2018 |
Diff from average |
Lowest for August 2018 |
Total for August 2018 |
Average for August |
Rank of August 2018 |
Fraction of August average |
|||
North Kimberley (district 01) | ||||||||||||
Doongan | 31.2 | -0.4 | 34.0 | 28th | 10.5 | -1.7 | 4.8 | 9th | 0 | 0.8 | lowest | 0% |
Kalumburu | 34.5 | +0.9 | 36.8 | 27th | 13.6 | -1.0 | 6.8 | 15th | 0 | 0.3 | lowest | 0% |
Troughton Island | 29.3 | +0.4 | 30.9 | 11th | 22.5 | -0.1 | 19.9 | 16th | 0 | 0.5 | lowest | 0% |
Truscott | 31.6 | -0.1 | 33.3 | 11th | 18.6 | -0.3 | 13.8 | 16th | 0.2 | 0.4 | average | 50% |
Wyndham Aero | 33.7 | -0.3 | 36.6 | 27th | 15.2 | -0.9 | 8.5 | 15th | 0 | 0.1 | lowest | 0% |
East Kimberley (district 02) | ||||||||||||
Argyle Aerodrome | 31.5 | -0.6 | 34.7 | 30th | 16.2 | -1.2 | 9.8 | 14th | 0 | 0.3 | lowest | 0% |
Halls Creek Airport | 28.8 | 33.5 | 28th | 10.1 | 2.4 | 15th | 0 | |||||
Kununurra Aero | 32.3 | -0.5 | 35.7 | 29th | 12.6 | -3.0 | 6.1 | 15th | 0 | 0.1 | lowest | 0% |
Warmun | 29.3 | -3.0 | 35.1 | 29th | 11.3 | -3.5 | 5.3 | 14th | 0 | 1.3 | lowest | 0% |
West Kimberley (district 03) | ||||||||||||
Bidyadanga | 30.3 | -0.8 | 35.5 | 19th | 13.4 | -1.5 | 8.5 | 4th | 1.6 | 2.3 | high | 70% |
Broome Airport | 29.2 | -1.1 | 34.7 | 19th | 11.5 | -3.4 | 5.7 | 4th | 1.4 | 2.2 | high | 64% |
Curtin Aero | 31.5 | -1.7 | 35.1 | 19th | 13.2 | -2.6 | 4.2 | 16th | 0 | 2.4 | lowest | 0% |
Cygnet Bay | 32.0 | 20th | 13.1 | -1.7 | 8.0 | 16th | 0 | 0.9 | lowest | 0% | ||
Derby Aero | 31.3 | -1.4 | 35.4 | 19th | 11.9 | -4.0 | 6.1 | 15th | 0.6 | 1.1 | high | 55% |
Fitzroy Crossing Aero | 31.7 | -1.7 | 36.0 | 27th | 10.8 | -2.9 | 4.5 | 15th | 0 | 3.0 | lowest | 0% |
De Grey (district 04) | ||||||||||||
Bedout Island | 24.8 | -1.7 | 27.8 | 28th | 18.7 | -1.5 | 16.7 | 16th | ||||
Karratha Aero | 27.0 | -1.3 | 31.5 | 27th | 12.4 | -1.9 | 8.0 | 3rd | 0 | 4.1 | lowest | 0% |
Legendre Island | 24.9 | 28.1 | 15th | 16.7 | 14.4 | 7th | ||||||
Mandora | 29.6 | -1.3 | 35.6 | 19th | 9.7 | -3.5 | 3.2 | 8th | 0 | 2.5 | lowest | 0% |
Marble Bar | 28.4 | -1.9 | 33.2 | 27th | 11.1 | -2.0 | 5.9 | 14th | 0 | 0.5 | v low | 0% |
Port Hedland Airport | 28.5 | -0.8 | 33.2 | 20th | 11.0 | -2.2 | 6.6 | 7th | 0.4 | 4.7 | average | 9% |
Roebourne Aero | 28.9 | -1.4 | 33.1 | 18th | 9.9 | -2.7 | 5.1 | 7th | 0 | 0.7 | v low | 0% |
Fortescue (district 05) | ||||||||||||
Barrow Island Airport | 23.8 | -1.4 | 29.3 | 18th | 16.5 | -1.3 | 13.4 | 8th | 1.0 | 2.6 | average | 38% |
Learmonth Airport | 25.7 | -0.7 | 30.9 | 17th | 10.4 | -1.7 | 5.2 | 13th | 1.2 | 11.4 | average | 11% |
Mardie | 28.3 | -1.3 | 33.9 | 20th | 10.8 | -1.7 | 6.8 | 12th | 0 | 7.1 | lowest | 0% |
Onslow Airport | 26.7 | -0.6 | 30.9 | 18th | 12.6 | -1.0 | 8.2 | 7th | 0.4 | 8.4 | low | 5% |
Thevenard Island | 24.8 | -1.3 | 28.4 | 18th | 16.2 | -1.2 | 10.9 | 8th | 1.2 | 2.9 | average | 41% |
Wittenoom | 26.4 | -0.6 | 31.0 | 21st | 10.9 | -2.3 | 6.4 | 7th | 0 | 7.8 | lowest | 0% |
West Gascoyne (district 06) | ||||||||||||
Carnarvon Airport | 23.7 | +0.6 | 29.1 | 18th | 10.7 | -0.9 | 4.4 | 12th | 12.4 | 17.5 | average | 71% |
Denham | 21.8 | -0.8 | 28.0 | 19th | 12.2 | -1.1 | 9.0 | 16th | 23.6 | 21.9 | average | 108% |
Shark Bay Airport | 22.9 | -1.3 | 31.8 | 19th | 10.1 | -1.0 | 5.0 | 12th | 30.0 | 20.7 | average | 145% |
East Gascoyne (district 07) | ||||||||||||
Newman Aero | 24.8 | -1.4 | 30.3 | 28th | 6.3 | -1.7 | 1.0 | 12th | 0 | 6.6 | lowest | 0% |
Paraburdoo Aero | 25.9 | -1.8 | 31.5 | 20th | 8.6 | -2.4 | 3.5 | 4th | 0 | 10.1 | lowest | 0% |
Murchison (district 07A) | ||||||||||||
Meekatharra Airport | 21.9 | +0.3 | 29.4 | 20th | 8.1 | -0.5 | 2.2 | 6th | 6.4 | 10.8 | average | 59% |
Mount Magnet Aero | 20.6 | -0.7 | 29.8 | 20th | 7.6 | -0.4 | 1.6 | 11th | 18.8 | 17.0 | average | 111% |
Paynes Find | 19.5 | -0.6 | 29.6 | 19th | 5.9 | -0.1 | 0.0 | 11th | 37.0 | 27.4 | average | 135% |
North Coast (district 08) | ||||||||||||
Dalwallinu | 16.7 | -1.6 | 25.6 | 20th | 5.7 | -0.4 | 1.4 | 12th | 79.0 | 40.4 | v high | 196% |
Geraldton Airport | 19.6 | 26.8 | 19th | 8.4 | 2.6 | 12th | 65.0 | |||||
Kalbarri | 21.9 | -0.6 | 29.8 | 19th | 9.9 | 0.0 | 2.6 | 11th | 44.6 | 47.7 | average | 94% |
Morawa Airport | 18.6 | -1.7 | 28.1 | 20th | 5.9 | -0.6 | 1.4 | 11th | 64.0 | 34.9 | highest | 183% |
Mullewa | 19.3 | -0.9 | 28.4 | 20th | 6.5 | -0.7 | 3.1 | 11th | 52.3 | 42.3 | high | 124% |
North Island | 20.9 | -0.7 | 25.4 | 19th | 14.6 | -0.8 | 9.4 | 8th | 26.4 | 35.8 | low | 74% |
Wongan Hills | 17.2 | -0.7 | 26.0 | 20th | 6.5 | -0.2 | 2.5 | 11th | 100.4 | 52.0 | v high | 193% |
Central Coast (district 09) | ||||||||||||
Badgingarra Research Stn | 17.2 | -1.1 | 25.8 | 19th | 7.2 | +0.1 | 3.2 | 10th | 24.2 | 83.9 | v low | 29% |
Bickley | 15.0 | -1.0 | 22.2 | 20th | 6.8 | -0.8 | 2.8 | 10th | 303.6 | 176.1 | v high | 172% |
Garden Island HSF | 17.2 | -0.9 | 23.3 | 20th | 10.4 | -0.9 | 5.6 | 19th | 112.2 | 95.9 | high | 117% |
Gingin Aero | 18.5 | -0.6 | 24.6 | 20th | 6.6 | 0.0 | 0.3 | 11th | 162.8 | 109.8 | v high | 148% |
Jandakot Aero | 18.1 | -0.6 | 25.8 | 20th | 7.3 | +0.1 | 1.4 | 12th | 195.6 | 129.0 | v high | 152% |
Jurien Bay | 19.5 | -0.5 | 24.1 | 20th | 9.6 | +0.2 | 2.9 | 24th | 85.3 | 80.6 | average | 106% |
Lancelin | 19.1 | -0.3 | 26.4 | 19th | 9.6 | -0.4 | 5.0 | 24th | 116.5 | 91.2 | high | 128% |
Millendon (Swan Valley) | 18.4 | 24.3 | 19th | 7.6 | 2.4 | 11th | 180.0 | |||||
Pearce RAAF | 18.3 | -0.1 | 24.3 | 20th | 8.1 | -0.1 | 2.6 | 11th | 194.6 | 106.2 | v high | 183% |
Perth Airport | 18.5 | -0.1 | 25.3 | 20th | 7.8 | -0.3 | 2.5 | 10th | 172.8 | 118.9 | v high | 145% |
Perth Metro | 18.4 | -0.7 | 25.3 | 20th | 8.1 | -0.2 | 2.8 | 11th | 186.0 | 126.0 | highest | 148% |
Rottnest Island | 17.4 | -0.5 | 22.3 | 20th | 11.6 | -0.8 | 6.8 | 10th | 108.4 | 87.9 | high | 123% |
Swanbourne | 18.0 | -0.9 | 25.7 | 20th | 9.7 | -0.4 | 5.2 | 11th | 150.0 | 119.1 | high | 126% |
South Coast (district 09A) | ||||||||||||
Albany | 16.2 | -0.1 | 23.1 | 13th | 9.1 | +0.7 | 5.4 | 19th | 147.8 | 126.3 | high | 117% |
Albany Airport | 16.4 | 22.6 | 20th | 7.3 | 1.1 | 18th | 157.4 | |||||
Bridgetown | 15.6 | -0.8 | 21.3 | 20th | 4.8 | -0.3 | -1.7 | 18th | 200.8 | 122.5 | highest | 164% |
Bunbury | 16.9 | -0.7 | 22.3 | 20th | 6.9 | -0.8 | 2.2 | 10th | 146.2 | 121.5 | high | 120% |
Busselton Aero | 16.2 | -1.1 | 19.3 | 13th | 7.3 | 0.0 | 2.4 | 18th | 93.2 | 108.9 | average | 86% |
Cape Leeuwin | 16.5 | 0.0 | 22.1 | 20th | 11.2 | 0.0 | 7.5 | 29th | 130.0 | 136.0 | average | 96% |
Cape Naturaliste | 16.7 | +0.2 | 20.5 | 20th | 9.8 | -0.3 | 5.0 | 10th | 133.6 | 112.7 | average | 119% |
Collie East | 16.6 | -0.5 | 24.9 | 20th | 3.7 | -1.1 | -1.8 | 18th | 136.2 | 121.0 | average | 113% |
Donnybrook | 17.1 | -0.2 | 22.0 | 20th | 6.6 | +0.5 | 2.0 | 13th | 176.6 | 148.9 | high | 119% |
Dwellingup | 15.7 | 0.0 | 24.9 | 20th | 5.3 | -0.2 | -0.1 | 11th | 269.2 | 194.9 | high | 138% |
Esperance | 17.8 | -0.2 | 26.0 | 27th | 8.7 | +0.1 | 6.1 | 19th | 149.0 | 84.3 | highest | 177% |
Esperance Aero | 17.0 | -0.4 | 24.3 | 27th | 7.5 | -0.2 | 4.9 | 5th | 158.0 | 71.0 | highest | 223% |
Hopetoun North | 18.0 | -0.7 | 25.4 | 13th | 7.7 | -0.1 | 3.1 | 19th | 69.8 | 55.0 | high | 127% |
Jarrahwood | 16.7 | -0.2 | 22.0 | 19th | 4.9 | -0.3 | -1.5 | 18th | 226.8 | 147.8 | v high | 153% |
Mandurah | 16.9 | -1.2 | 21.6 | 20th | 10.2 | -0.9 | 5.7 | 10th | 131.8 | 97.7 | high | 135% |
Manjimup | 14.7 | -0.4 | 21.8 | 20th | 6.5 | 0.0 | 1.9 | 18th | 185.6 | 145.6 | high | 127% |
North Walpole | 15.8 | -0.8 | 21.9 | 20th | 8.5 | -0.6 | 2.7 | 18th | 172.4 | 156.0 | average | 111% |
Shannon | 14.5 | -1.0 | 21.3 | 20th | 6.4 | -0.6 | 0.5 | 18th | 205.6 | 135.5 | high | 152% |
Witchcliffe | 15.8 | -1.0 | 21.1 | 20th | 8.3 | +0.1 | 0.9 | 18th | 219.4 | 159.3 | v high | 138% |
North Central (district 10) | ||||||||||||
Bencubbin | 16.3 | -1.4 | 26.2 | 20th | 5.2 | -0.8 | 0.4 | 11th | 36.2 | 37.5 | average | 97% |
Cunderdin Airfield | 16.7 | -1.3 | 23.4 | 20th | 4.4 | -0.2 | -0.1 | 11th | 59.6 | 42.3 | v high | 141% |
Merredin | 16.7 | -0.8 | 25.0 | 20th | 5.5 | 0.0 | 1.9 | 23rd | 61.6 | 39.2 | high | 157% |
Northam | 17.3 | -0.7 | 22.4 | 26th | 5.0 | -0.6 | 0.2 | 12th | 95.1 | 61.0 | v high | 156% |
York | 17.4 | -0.6 | 22.6 | 20th | 3.6 | -0.4 | -1.0 | 13th | 84.5 | 58.3 | high | 145% |
South Central (district 10A) | ||||||||||||
Beverley | 16.8 | -1.0 | 23.2 | 20th | 4.0 | -1.1 | 0.2 | 11th | 76.4 | 58.8 | high | 130% |
Brookton | 16.2 | -0.6 | 22.1 | 21st | 3.7 | -0.9 | -0.5 | 12th | 71.1 | 62.3 | average | 114% |
Corrigin | 15.7 | -0.7 | 23.1 | 20th | 3.9 | -0.9 | -1.5 | 18th | 67.6 | 47.8 | high | 141% |
Hyden | 17.0 | -0.6 | 26.3 | 20th | 4.1 | -0.6 | -0.7 | 18th | 75.4 | 41.3 | v high | 183% |
Jacup | 16.3 | -0.5 | 23.9 | 20th | 5.1 | -0.6 | -1.2 | 18th | 57.2 | 51.9 | average | 110% |
Katanning | 14.5 | -0.9 | 21.4 | 20th | 5.3 | -0.7 | 0.2 | 18th | 68.2 | 59.9 | average | 114% |
Lake Grace | 15.9 | -0.9 | 25.8 | 20th | 5.3 | -0.4 | -0.5 | 18th | 34.8 | 37.2 | average | 94% |
Narembeen | 16.8 | -0.9 | 25.0 | 20th | 4.9 | -0.5 | 0.1 | 11th | 78.6 | 42.4 | v high | 185% |
Narrogin | 15.5 | +0.2 | 23.1 | 20th | 4.6 | -0.6 | 0.4 | 18th | 94.8 | 67.9 | high | 140% |
Newdegate Research Station | 15.4 | -0.9 | 23.7 | 20th | 3.9 | -0.4 | -2.6 | 18th | 46.8 | 44.6 | average | 105% |
Pingelly | 15.9 | -0.2 | 22.5 | 20th | 5.0 | -0.7 | 1.3 | 23rd | 79.9 | 62.1 | high | 129% |
Ravensthorpe | 17.3 | 0.0 | 23.0 | 20th | 6.3 | -0.4 | 2.0 | 12th | 49.7 | 45.1 | average | 110% |
Wagin | 15.4 | -0.7 | 23.5 | 20th | 5.4 | -0.3 | 0.0 | 18th | 65.7 | 56.8 | average | 116% |
Wandering | 15.8 | -0.7 | 24.0 | 20th | 4.0 | -0.1 | -0.9 | 18th | 135.0 | 94.3 | v high | 143% |
Eucla (district 11) | ||||||||||||
Balladonia | 18.9 | -0.4 | 25.8 | 1st | 4.7 | -0.6 | 0.0 | 18th | 21.0 | 21.3 | average | 99% |
Eucla | 19.8 | +0.6 | 30.6 | 29th | 7.9 | +0.4 | 3.8 | 16th | 37.4 | 26.3 | high | 142% |
Eyre | 19.6 | +0.1 | 28.3 | 28th | 5.9 | -0.1 | -1.6 | 17th | 67.4 | 29.8 | v high | 226% |
Forrest | 20.5 | -0.5 | 30.5 | 28th | 6.1 | +0.3 | 1.1 | 19th | 23.8 | 13.8 | high | 172% |
Red Rocks Point | 18.5 | -1.0 | 29.2 | 28th | 7.9 | -0.3 | 1.8 | 20th | 89.6 | 42.4 | v high | 211% |
South East (district 12) | ||||||||||||
Bulga Downs | 20.7 | -1.4 | 28.7 | 20th | 4.9 | -1.2 | -0.5 | 6th | ||||
Kalgoorlie-Boulder Airport | 18.6 | -0.1 | 26.5 | 27th | 6.1 | +0.4 | 0.8 | 11th | 29.8 | 21.3 | high | 140% |
Laverton Aero | 20.2 | -0.6 | 27.9 | 21st | 6.3 | -0.9 | -1.5 | 6th | 12.6 | 10.2 | average | 124% |
Leinster Aero | 20.7 | -1.0 | 28.1 | 20th | 6.5 | -1.2 | -0.4 | 6th | 9.0 | 8.9 | average | 101% |
Leonora Aero | 20.7 | -1.1 | 27.8 | 27th | 6.2 | -1.3 | -0.3 | 6th | 17.8 | 11.3 | average | 158% |
Munglinup West | 17.1 | -0.9 | 25.0 | 13th | 6.4 | -0.5 | 2.1 | 19th | 81.0 | 45.7 | high | 177% |
Norseman Aero | 18.3 | -1.0 | 26.3 | 27th | 4.1 | -0.4 | -3.7 | 18th | 26.6 | 23.0 | average | 116% |
Salmon Gums Res.Stn. | 17.2 | -0.2 | 25.9 | 27th | 5.0 | +0.3 | -1.5 | 18th | 62.2 | 34.2 | v high | 182% |
Southern Cross Airfield | 16.9 | -1.6 | 26.5 | 20th | 3.4 | -0.4 | -1.1 | 11th | 46.8 | 31.0 | high | 151% |
North East (district 13) | ||||||||||||
Carnegie | 23.3 | -0.9 | 30.2 | 28th | 5.8 | -1.5 | -0.6 | 6th | 0.2 | 6.7 | average | 3% |
Giles Meteorological Office | 23.0 | +0.2 | 30.3 | 28th | 7.6 | -1.1 | -1.4 | 3rd | 0 | 9.5 | lowest | 0% |
Telfer Aero | 26.9 | -1.6 | 32.8 | 28th | 9.8 | -2.8 | 2.6 | 6th | 0 | 4.7 | lowest | 0% |
Warburton Airfield | 23.2 | -0.1 | 31.8 | 28th | 5.4 | -1.8 | -3.4 | 6th | 0.4 | 8.8 | average | 5% |
Wiluna | 21.6 | -0.3 | 28.5 | 27th | 6.1 | -0.7 | -1.0 | 6th | 2.7 | 9.9 | average | 27% |
Wiluna Aero | 22.1 | 28.9 | 20th | 6.5 | -0.7 | 6th | 2.0 | |||||
Offshore Islands (district 200) | ||||||||||||
Adele Island | 27.0 | 29.4 | 19th | 21.7 | 13th | |||||||
Rowley Shoals | 24.6 | 26.3 | 19th | 21.9 | 19.5 | 4th |
Extremes Maps Records Summaries Important notes the top
Notes
The Monthly 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 9 am on Monday 3 September 2018. 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
- media@bom.gov.au (03) 9669 4057
- Enquiries
- helpdesk.climate@bom.gov.au
Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence