Thursday, 1 February 2018 - Monthly Climate Summary for Western Australia - Product code IDCKGC11R0
Western Australia in January 2018: A wet January
Rainfall in January 2018 was above average across most of Western Australia as tropical cyclone Joyce and a slow-moving tropical low produced widespread significant rains. It was the fifth-wettest January on record for the State as a whole. The mean maximum temperature was near average but mean minimum temperature was above average when averaged across WA.
Above average rainfall for most of WA
- Rainfall in January 2018 for WA was about 110% above the January average and the fifth-wettest January since comparable records commenced in 1900
- Rainfall for the South West Land Division (SWLD) was more than twice the January average
- Tropical cyclone Joyce, or its remnant low pressure system, and an associated cloudband produced widespread significant rainfall in the north and west of the State in early to mid-January; many record high January daily rainfall totals were recorded near the west coast, particularly around Perth on the 15th and 16th
- A tropical low moved slowly over land through the Kimberley and Northern Interior at the end of January producing very heavy rainfall, including a few January daily rainfall records
- West Roebuck recorded 448.8 mm in the 24 hours to 9am on the 30th, which was its highest daily rainfall for any month in its 17 years of record, and the highest daily rainfall in WA for almost 14 years, since 525.5 mm was recorded at Nifty Copper Mine in the Pilbara on 28 March 2004
- Broome Airport recorded a daily rainfall of 412.2 mm from its automatic rainguage (though its manual rainguage had a higher total at 439.4 mm ) on the 30th, which was its 2nd-highest daily rainfall for any month on record; the record being 476.6 mm on 30 January 1997 also the result of a slow-moving tropical low
- Many sites in the west Kimberley, east Pilbara, Lower West and adjacent parts of neighbouring districts recorded their wettest January on record or wettest January for at least 20 years
Very much above average overnight temperatures in southeast WA
- Mean maximum temperature for WA was close to average; the warmest since 2015
- Mean minimum temperature for WA was 0.43 °C above average; the warmest since 2016
- A broad area in the north and central WA experienced cold conditions with daily maxima more than 10 °C lower than average at the end of January; several sites in the Pilbara, Southern Interior and northern Goldfields broke both January low maxima and minima records
- Mean minimum temperatures in the north and west Kimberley were 1 °C to 2 °C cooler than averages; a number of sites had their coolest January nights on record
- In contrast, the southeast of the State recorded above average mean minimum temperatures; Eyre equalled its previous January record
Record wind gust at Derby Aerodrome in the west Kimberley
- Derby Aerodrome recorded a wind gust of 169 km/h (91 knots) in the evening on the 7th during a severe thunderstorm, which was its highest wind gust in 22 years of recording. The previous record at the site was 124 km/h (67 knots) on 9 February 1977
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 January 2018 | |
---|---|
Hottest day | 46.2 °C at Emu Creek Station on the 5th |
Warmest days on average | 42.0 °C at Emu Creek Station |
Coolest days on average | 22.4 °C at Albany |
Coldest day | 15.6 °C at Laverton Aero on the 30th |
Coldest night | 4.6 °C at Jarrahwood on the 6th |
Coolest nights on average | 11.9 °C at Jarrahwood |
Warmest nights on average | 27.7 °C at Karratha Aero |
Warmest night | 33.0 °C at Wiluna Aero on the 5th |
Warmest on average overall | 32.9 °C at Roebourne Aero |
Coolest on average overall |
19.0 °C at North Walpole 19.0 °C at Shannon |
Wettest overall |
1090.4 mm at West Roebuck |
Wettest day | 448.8 mm at West Roebuck on the 30th |
Strongest wind gust | 169 km/h at Derby Aero on the 7th |
Extremes 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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Record highest January daily rainfall | ||||||
---|---|---|---|---|---|---|
New record (mm) |
Old record |
Years of record |
||||
Murgoo | 106.0 | on the 15th | 101.1 | on the 22nd in 1967 | 122 | |
Toodyay | 87.0 | on the 16th | 71.4 | on the 13th in 2006 | 122 | |
New Norcia | 75.0 | on the 16th | 70.4 | on the 29th in 2017 | 121 | |
Marradong | 133.0 | on the 16th | 121.0 | on the 21st in 1982 | 112 | |
Woolgorong | 58.2 | on the 15th | 55.9 | on the 21st in 1952 | 112 | |
Jarrahdale | 125.2 | on the 16th | 60.6 | on the 20th in 2012 | 111 | |
Chidlow | 102.2 | on the 16th | 86.4 | on the 20th in 2012 | 110 | |
Mundaring | 88.4 | on the 16th | 68.8 | on the 20th in 2012 | 108 | |
Yuna | 43.8 | on the 15th | 41.1 | on the 21st in 1916 | 105 | |
Mount Narryer | 83.0 | on the 15th | 82.6 | on the 22nd in 1967 | 103 | |
Canna | 54.0 | on the 15th | 41.0 | on the 29th in 1990 | 100 | |
Midland | 73.2 | on the 17th | 50.8 | on the 15th in 1915 | 95 | |
Serpentine | 110.6 | on the 16th | 60.6 | on the 20th in 2012 | 92 | |
Mandora | 150.0 | on the 12th | 146.0 | on the 25th in 2003 | 89 | |
Riverside | 68.0 | on the 15th | 41.9 | on the 14th in 1963 | 86 | |
Perth Airport | 82.6 | on the 16th | 60.8 | on the 22nd in 2000 | 74 | |
Wanneroo | 94.6 | on the 16th | 66.4 | on the 21st in 1982 | 73 | |
Muresk Institute | 81.6 | on the 16th | 60.0 | on the 31st in 2017 | 67 | |
Pearce RAAF | 66.8 | on the 16th | 33.0 | on the 15th in 2000 | 64 | |
Gidgegannup | 114.2 | on the 16th | 113.5 | on the 29th in 1990 | 60 | |
Karnet | 131.3 | on the 16th | 106.8 | on the 21st in 1982 | 55 | |
Bakers Hill | 92.2 | on the 16th | 57.0 | on the 21st in 1982 | 51 | |
Bickley | 139.2 | on the 16th | 47.2 | on the 21st in 1982 | 50 | |
Roleystone | 139.2 | on the 16th | 79.6 | on the 22nd in 2000 | 50 | |
Karragullen North | 138.6 | on the 16th | 88.0 | on the 22nd in 2000 | 48 | |
Culford | 110.8 | on the 16th | 97.8 | on the 21st in 1982 | 47 | |
Jandakot Aero | 119.0 | on the 16th | 76.0 | on the 21st in 1982 | 44 | |
Nindethana Farm | 52.6 | on the 15th | 39.0 | on the 20th in 1982 | 41 | |
Karara | 70.8 | on the 15th | 65.8 | on the 27th in 1939 | 39 | |
Kilto Station | 252.0 | on the 30th | 239.0 | on the 29th in 1978 | 37 | |
Mosman Park | 120.0 | on the 16th | 58.6 | on the 22nd in 2000 | 37 | |
Dalgety Downs | 75.2 | on the 15th | 65.0 | on the 31st in 2016 | 34 | |
Maida Vale | 84.6 | on the 16th | 69.2 | on the 22nd in 2000 | 34 | |
Pinjarra Refinery | 57.6 | on the 16th | 20.0 | on the 23rd in 1999 | 32 | |
Murchison | 47.0 | on the 15th | 33.1 | on the 21st in 2001 | 30 | |
Huntly | 144.0 | on the 16th | 33.4 | on the 15th in 2000 | 28 | |
Nunile | 96.4 | on the 16th | 92.0 | on the 13th in 2006 | 28 | |
Rottnest Island | 142.2 | on the 16th | 46.8 | on the 23rd in 1999 | 26 | |
Swanbourne | 138.6 | on the 16th | 79.0 | on the 22nd in 2000 | 25 | |
Yourdamung Lake | 96.6 | on the 16th | 32.4 | on the 20th in 2016 | 24 | |
York | 76.6 | on the 16th | 73.6 | on the 13th in 2006 | 22 | |
Kalumburu | 122.8 | on the 29th | 116.0 | on the 28th in 2001 | 20 | |
Waeel | 39.8 | on the 16th | 34.4 | on the 6th in 2011 | 20 | |
Wandering | 89.0 | on the 16th | 35.2 | on the 20th in 2016 | 20 |
Record highest January total rainfall | |||||
---|---|---|---|---|---|
New record (mm) |
Old record |
Years of record |
Average for January |
||
Jarrahdale | 131.4 | 113.0 | in 2000 | 132 | 13.7 |
Murgoo | 112.0 | 110.7 | in 2006 | 129 | 18.3 |
Warrawagine | 421.8 | 286.8 | in 1907 | 107 | 72.3 |
Mulyie | 303.5 | 297.3 | in 1942 | 105 | 66.7 |
Serpentine | 116.2 | 60.6 | in 2012 | 95 | 10.8 |
Broome Airport* | 915.6 | 910.8 | in 1997 | 78 | 191.1 |
Dalgety Downs | 144.4 | 122.4 | in 1909 | 51 | 32.2 |
Bickley | 143.2 | 131.8 | in 2000 | 50 | 21.0 |
Granite Peak | 132.4 | 102.6 | in 2001 | 38 | 40.2 |
Kilto Station | 917.8 | 620.4 | in 1978 | 38 | 226.7 |
Huntly | 152.3 | 78.7 | in 2000 | 28 | 19.8 |
Rottnest Island | 143.2 | 59.0 | in 2000 | 26 | 17.1 |
Curtin Aero | 518.0 | 454.8 | in 2015 | 24 | 225.0 |
Swanbourne | 145.8 | 140.8 | in 2000 | 24 | 20.9 |
Yourdamung Lake | 102.6 | 74.8 | in 2000 | 24 | 20.4 |
* note: 915.6 mm was recorded by automatic rainguage, however the manual rainguage at Broomer Airport recorded a higher monthly total of 942.2 mm
Highest January total rainfall for at least 20 years | |||||
---|---|---|---|---|---|
Observed (mm) |
Most recent higher |
Average for January |
|||
Mandora | 419.0 | 627.2 | in 1942 | 87.6 | |
Wallal Downs | 439.6 | 486.8 | in 1942* | 90.5 | |
Riverside | 68.8 | 70.3 | in 1963* | 11.6 | |
Byro | 156.0 | 195.4 | in 1967* | 24.6 | |
Derby Aero | 683.4 | 703.2 | in 1978* | 204.3 | |
Karnet | 138.4 | 167.0 | in 1982 | 19.3 | |
Marradong | 136.0 | 170.0 | in 1982 | 12.6 | |
Bidyadanga | 608.7 | 665.0 | in 1982* | 131.3 | |
Dwellingup | 153.6 | 237.4 | in 1982* | 17.1 | |
Darkan | 93.4 | 187.4 | in 1982* | 13.0 | |
Wanneroo | 100.5 | 123.2 | in 1982* | 12.2 | |
Country Downs | 854.8 | 1000.0 | in 1982* | 280.6 | |
Culford | 116.2 | 134.4 | in 1982* | 17.0 | |
Wagerup Refinery | 65.3 | 178.6 | in 1982* | 15.6 | |
Gleneva | 54.4 | 79.2 | in 1990 | 8.8 | |
Yuna | 44.8 | 65.2 | in 1990 | 9.7 | |
Chidlow | 115.1 | 136.6 | in 1990* | 14.7 | |
Fossil Downs | 316.0 | 365.6 | in 1991* | 159.8 | |
Mundaring | 93.2 | 145.0 | in 1990* | 14.5 | |
Anna Plains | 474.1 | 543.2 | in 1997 | 111.5 | |
Kimberley Downs | 597.8 | 601.8 | in 1997 | 209.7 | |
Yarrie | 377.0 | 508.0 | in 1997* | 79.7 |
* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported
Record lowest January daily maximum temperature | ||||||
---|---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for January |
|||
Mandora | 25.4 | on the 31st | 27.0 | on the 24th in 2003 | 54 | 36.0 |
Telfer Aero | 22.0 | on the 31st | 25.0 | on the 10th in 1983 | 44 | 40.3 |
Carnegie | 17.1 | on the 30th | 21.0 | on the 10th in 2012 | 28 | 38.7 |
Argyle Aerodrome | 26.3 | on the 8th | 26.8 | on the 15th in 2014 | 24 | 36.4 |
Leinster Aero | 15.9 | on the 30th | 17.4 | on the 31st in 2006 | 24 | 37.2 |
Newman Aero | 20.8 | on the 30th | 22.7 | on the 1st in 2006 | 22 | 39.0 |
Paraburdoo Aero | 23.9 | on the 30th | 25.3 | on the 8th in 1997 | 22 | 40.6 |
Lowest January mean daily maximum temperature for at least 20 years | |||||
---|---|---|---|---|---|
Observed (°C) |
Most recent lower |
Average for January |
|||
Warmun | 33.6 | =33.6 | in 1984 | 37.1 |
Record lowest January temperature | ||||||
---|---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for January |
|||
Bidyadanga | 18.0 | on the 17th | 19.4 | on the 30th in 1963 | 59 | 26.0 |
Derby Aero | 19.2 | on the 8th | 20.2 | on the 21st in 1975 | 33 | 25.7 |
Carnegie | 13.4 | on the 31st | 14.9 | on the 2nd in 2006 | 28 | 23.9 |
Newman Aero | 15.8 | on the 31st | 16.1 | on the 2nd in 2006 | 22 | 24.9 |
Record highest January mean daily minimum temperature | |||||
---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for January |
||
Eyre | 16.7 | = 16.7 | in 2011 | 58 | 15.3 |
Record lowest January mean daily minimum temperature | |||||
---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for January |
||
Warmun | 22.1 | 22.5 | in 1976 | 55 | 24.8 |
Derby Aero | 24.3 | 24.4 | in 1976 | 32 | 25.7 |
Curtin Aero | 23.9 | = 23.9 | in 2000 | 26 | 25.0 |
Record lowest January mean temperature | |||||
---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for January |
||
Warmun | 27.9 | 28.1 | in 1974 | 55 | 31.0 |
Lowest January mean temperature for at least 20 years | |||||
---|---|---|---|---|---|
Observed (°C) |
Most recent lower |
Average for January |
|||
Curtin Aero | 28.9 | 28.8 | in 1997 | 30.7 | |
Derby Aero | 28.8 | =28.8 | in 1997 | 30.5 |
Extremes Maps Records Summaries Important notes the top
Summary statistics for January 2018 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
Mean for January 2018 |
Diff from average |
Highest for January 2018 |
Mean for January 2018 |
Diff from average |
Lowest for January 2018 |
Total for January 2018 |
Average for January |
Rank of January 2018 |
Fraction of January average |
|||
North Kimberley (district 01) | ||||||||||||
Doongan | 32.7 | -0.5 | 36.0 | 24th | 22.5 | -0.3 | 16.0 | 30th | 401.5 | 306.2 | high | 131% |
Kalumburu | 33.0 | -0.9 | 37.3 | 1st | 24.1 | -0.5 | 21.5 | 7th | 658.8 | 325.1 | v high | 203% |
Mount Elizabeth | 31.7 | -1.2 | 36.4 | 6th | 22.0 | -0.1 | 19.5 | 2nd | 314.8 | 257.6 | high | 122% |
Troughton Island | 31.4 | -0.4 | 33.7 | 1st | 25.9 | -0.5 | 22.0 | 7th | 492.4 | 271.0 | high | 182% |
Truscott | 31.6 | -0.5 | 35.0 | 1st | 24.6 | -0.8 | 21.4 | 7th | 522.0 | 322.9 | high | 162% |
Wyndham Aero | 34.8 | -1.6 | 39.8 | 22nd | 25.5 | -0.7 | 21.9 | 2nd | 288.8 | 200.6 | high | 144% |
East Kimberley (district 02) | ||||||||||||
Argyle Aerodrome | 35.1 | -1.3 | 41.9 | 1st | 25.2 | -0.5 | 22.2 | 20th | 207.6 | 162.4 | average | 128% |
Halls Creek Airport | 35.9 | 41.8 | 6th | 23.8 | 21.8 | 31st | 177.8 | |||||
Kununurra Aero | 34.3 | -1.5 | 40.5 | 1st | 24.9 | -0.2 | 21.8 | 2nd | 211.8 | 209.7 | average | 101% |
Warmun | 33.6 | -3.5 | 40.1 | 7th | 22.1 | -2.7 | 20.3 | 20th | 204.3 | 181.7 | average | 112% |
West Kimberley (district 03) | ||||||||||||
Bidyadanga | 33.6 | -0.8 | 38.5 | 7th | 24.9 | -1.1 | 18.0 | 17th | 608.7 | 131.3 | v high | 464% |
Broome Airport | 32.6 | -0.7 | 34.8 | 7th | 25.5 | -0.8 | 22.0 | 8th | 915.6 | 191.1 | highest | 479% |
Curtin Aero | 33.8 | -2.5 | 38.1 | 6th | 23.9 | -1.1 | 21.3 | 23rd | 518.0 | 225.0 | highest | 230% |
Cygnet Bay | 32.8 | -0.8 | 35.5 | 4th | 25.1 | -0.5 | 23.1 | 23rd | 461.1 | 243.0 | high | 190% |
Derby Aero | 33.2 | -2.0 | 37.4 | 24th | 24.3 | -1.4 | 19.2 | 8th | 683.4 | 204.3 | v high | 335% |
Fitzroy Crossing Aero | 36.9 | -0.6 | 41.5 | 6th | 24.8 | -0.4 | 22.8 | 31st | 173.4 | 182.0 | average | 95% |
De Grey (district 04) | ||||||||||||
Bedout Island | 33.9 | 37.3 | 3rd | 27.1 | 22.0 | 21st | ||||||
Karratha Aero | 36.6 | +0.7 | 42.1 | 3rd | 27.7 | +1.0 | 22.8 | 31st | 27.8 | 48.6 | average | 57% |
Legendre Island | 33.8 | 38.1 | 3rd | 27.0 | 22.8 | 31st | ||||||
Mandora | 35.1 | -0.9 | 41.2 | 2nd | 25.5 | +0.1 | 19.6 | 31st | 419.0 | 87.6 | v high | 478% |
Marble Bar | 38.9 | -1.9 | 45.3 | 5th | 25.3 | -1.2 | 17.9 | 31st | 314.0 | 107.7 | high | 292% |
Pardoo Station | 37.3 | +1.2 | 43.0 | 3rd | 25.2 | -0.7 | 21.0 | 13th | 213.2 | 65.6 | v high | 325% |
Port Hedland Airport | 35.6 | -0.7 | 42.6 | 3rd | 25.8 | +0.2 | 21.3 | 30th | 123.8 | 64.0 | high | 193% |
Roebourne Aero | 38.9 | +0.3 | 44.8 | 3rd | 26.8 | +0.6 | 23.1 | 31st | 70.0 | 77.1 | average | 91% |
Fortescue (district 05) | ||||||||||||
Barrow Island Airport | 34.9 | +1.8 | 39.2 | 23rd | 26.8 | +1.0 | 22.8 | 1st | 13.8 | 25.2 | average | 55% |
Learmonth Airport | 39.2 | +1.3 | 45.4 | 6th | 24.4 | +1.4 | 19.6 | 12th | 17.6 | 31.0 | average | 57% |
Mardie | 38.1 | +0.2 | 45.1 | 3rd | 26.6 | +1.6 | 23.4 | 1st | 0 | 38.1 | lowest | 0% |
Onslow Airport | 37.4 | +1.0 | 45.7 | 23rd | 26.2 | +1.8 | 22.9 | 11th | 18.8 | 38.6 | average | 49% |
Thevenard Island | 34.5 | +1.4 | 41.1 | 23rd | 26.6 | +1.3 | 23.5 | 1st | 5.6 | 30.7 | average | 18% |
Wittenoom | 38.0 | -1.5 | 44.4 | 5th | 25.7 | -0.3 | 19.6 | 31st | 238.8 | 116.2 | high | 206% |
West Gascoyne (district 06) | ||||||||||||
Carnarvon Airport | 31.9 | +0.6 | 42.6 | 13th | 23.8 | +1.2 | 19.7 | 12th | 0 | 11.8 | lowest | 0% |
Denham | 30.0 | -0.7 | 42.5 | 13th | 22.8 | +0.7 | 18.0 | 12th | 0 | 7.6 | lowest | 0% |
Emu Creek Station | 42.0 | +0.9 | 46.2 | 5th | 25.4 | +0.9 | 21.7 | 12th | 44.5 | 46.7 | average | 95% |
Murchison | 39.1 | -0.2 | 44.1 | 8th | 23.5 | +1.0 | 16.0 | 11th | 62.3 | 22.6 | v high | 276% |
Shark Bay Airport | 33.6 | -0.4 | 42.4 | 13th | 22.4 | +0.8 | 17.5 | 12th | 2.0 | 8.9 | average | 22% |
East Gascoyne (district 07) | ||||||||||||
Newman Aero | 38.5 | -0.5 | 44.4 | 22nd | 25.6 | +0.7 | 15.8 | 31st | 84.2 | 67.9 | high | 124% |
Paraburdoo Aero | 39.1 | -1.5 | 45.1 | 6th | 26.0 | +0.1 | 17.7 | 31st | 107.2 | 55.4 | high | 194% |
Murchison (district 07A) | ||||||||||||
Meekatharra Airport | 39.7 | +1.4 | 45.5 | 5th | 25.3 | +0.9 | 15.6 | 31st | 62.2 | 30.1 | high | 207% |
Mount Magnet Aero | 38.7 | +0.8 | 44.6 | 9th | 24.0 | +0.5 | 16.7 | 11th | 44.8 | 27.9 | high | 161% |
Paynes Find | 37.5 | +0.1 | 43.2 | 3rd | 21.9 | +0.9 | 14.6 | 11th | 93.4 | 21.3 | v high | 438% |
North Coast (district 08) | ||||||||||||
Dalwallinu | 34.6 | -0.7 | 41.9 | 2nd | 18.1 | -0.1 | 11.3 | 12th | 0 | 24.1 | lowest | 0% |
Geraldton Airport | 31.6 | 42.6 | 13th | 19.1 | 13.0 | 12th | 16.6 | |||||
Kalbarri | 32.8 | -0.4 | 43.1 | 13th | 21.2 | +1.6 | 16.0 | 12th | 0 | 5.3 | lowest | 0% |
Morawa Airport | 37.1 | -0.3 | 43.6 | 2nd | 20.6 | +0.7 | 13.6 | 12th | 49.4 | 24.2 | high | 204% |
Mullewa | 36.9 | +0.1 | 42.5 | 2nd | 20.6 | +1.1 | 14.4 | 12th | 47.3 | 13.8 | v high | 343% |
North Island | 27.5 | -0.1 | 30.3 | 14th | 21.4 | +0.1 | 19.4 | 12th | 7.2 | 3.0 | high | 240% |
Wongan Hills | 34.1 | -0.5 | 41.0 | 2nd | 17.7 | -0.2 | 12.1 | 7th | 47.0 | 15.5 | v high | 303% |
Central Coast (district 09) | ||||||||||||
Badgingarra Research Stn | 32.6 | -2.1 | 38.7 | 20th | 17.1 | 0.0 | 11.4 | 6th | 46.0 | 11.2 | v high | 411% |
Bickley | 29.2 | -1.4 | 36.4 | 2nd | 15.4 | 0.0 | 8.9 | 6th | 143.2 | 21.0 | highest | 682% |
Garden Island HSF | 26.4 | -1.1 | 40.1 | 14th | 18.9 | -0.1 | 13.8 | 6th | 108.2 | 16.5 | v high | 656% |
Jandakot Aero | 30.8 | -0.6 | 37.6 | 14th | 17.2 | +0.4 | 8.1 | 6th | 122.0 | 16.7 | v high | 731% |
Lancelin | 27.5 | -1.7 | 38.6 | 13th | 17.4 | -0.2 | 12.4 | 6th | 35.0 | 11.2 | high | 313% |
Millendon (Swan Valley) | 32.2 | 39.8 | 2nd | 17.0 | 9.9 | 12th | 58.6 | |||||
Pearce RAAF | 32.7 | -0.8 | 40.0 | 2nd | 17.0 | 0.0 | 9.7 | 12th | 69.4 | 10.7 | v high | 649% |
Perth Airport | 31.7 | -0.1 | 38.3 | 2nd | 17.3 | +0.2 | 9.1 | 12th | 83.8 | 11.0 | v high | 762% |
Perth Metro | 30.8 | -0.4 | 38.0 | 14th | 18.1 | 0.0 | 12.6 | 6th | 106.2 | 20.2 | v high | 526% |
Rottnest Island | 25.5 | -1.1 | 35.9 | 14th | 19.0 | -0.1 | 15.2 | 6th | 143.2 | 17.1 | highest | 837% |
Swanbourne | 28.4 | -1.5 | 38.7 | 14th | 18.4 | +0.1 | 12.4 | 6th | 145.8 | 20.9 | highest | 698% |
South Coast (district 09A) | ||||||||||||
Albany | 22.4 | -0.4 | 27.5 | 5th | 16.6 | +1.4 | 12.8 | 12th | 16.0 | 23.9 | average | 67% |
Albany Airport | 24.2 | 30.3 | 5th | 14.2 | 9.5 | 5th | 21.6 | |||||
Bridgetown | 29.1 | -0.9 | 38.5 | 14th | 12.5 | -0.7 | 6.5 | 12th | 21.8 | 17.2 | high | 127% |
Bunbury | 29.7 | -0.1 | 40.6 | 14th | 14.8 | -0.7 | 6.5 | 6th | 16.4 | 12.2 | high | 134% |
Busselton Aero | 29.3 | -0.9 | 39.8 | 14th | 14.2 | -0.1 | 8.5 | 6th | 55.6 | 15.0 | high | 371% |
Cape Leeuwin | 22.9 | -0.2 | 25.6 | 15th | 17.4 | +0.4 | 14.7 | 11th | 18.8 | 16.3 | high | 115% |
Cape Naturaliste | 26.3 | +0.8 | 36.9 | 14th | 15.0 | -0.2 | 11.1 | 8th | 18.4 | 10.9 | high | 169% |
Collie East | 30.1 | -0.7 | 38.3 | 14th | 13.3 | -0.2 | 5.4 | 6th | 59.0 | 21.8 | high | 271% |
Donnybrook | 30.4 | -0.2 | 39.4 | 14th | 15.0 | +0.9 | 6.6 | 6th | 31.4 | 12.8 | high | 245% |
Dwellingup | 29.5 | -0.2 | 37.8 | 14th | 14.7 | +0.4 | 6.7 | 6th | 153.6 | 17.1 | v high | 898% |
Esperance | 25.7 | -0.5 | 41.1 | 17th | 16.8 | +1.1 | 10.9 | 7th | 5.2 | 26.7 | low | 19% |
Esperance Aero | 28.3 | +0.5 | 41.5 | 5th | 15.8 | +0.9 | 10.5 | 7th | 13.2 | 27.6 | average | 48% |
Hopetoun North | 24.6 | -0.8 | 38.2 | 17th | 16.2 | +1.0 | 9.8 | 7th | 4.2 | 37.3 | low | 11% |
Jarrahwood | 29.6 | -0.1 | 38.8 | 14th | 11.9 | -0.8 | 4.6 | 6th | 40.6 | 17.2 | high | 236% |
Mandurah | 29.2 | -0.3 | 40.3 | 14th | 18.5 | -0.5 | 13.4 | 6th | 80.6 | 19.2 | v high | 420% |
Manjimup | 27.1 | -0.1 | 37.7 | 14th | 13.0 | -0.1 | 9.0 | 7th | 29.8 | 20.1 | high | 148% |
North Walpole | 23.5 | -0.9 | 29.2 | 14th | 14.4 | -0.2 | 12.1 | 12th | 14.6 | 28.1 | average | 52% |
Rocky Gully | 26.2 | -1.4 | 36.2 | 14th | 12.5 | -0.2 | 7.2 | 7th | 15.0 | 19.6 | high | 77% |
Shannon | 25.5 | -1.1 | 36.3 | 14th | 12.5 | -0.3 | 8.1 | 7th | 27.2 | 16.5 | high | 165% |
Witchcliffe | 25.3 | -1.3 | 33.8 | 14th | 13.6 | -0.4 | 8.9 | 28th | 21.2 | 10.7 | high | 198% |
North Central (district 10) | ||||||||||||
Bencubbin | 33.6 | -0.9 | 40.9 | 3rd | 18.5 | +0.3 | 12.9 | 6th | 7.7 | 17.1 | average | 45% |
Cunderdin Airfield | 34.2 | -0.6 | 42.0 | 3rd | 17.1 | -0.2 | 11.4 | 11th | 42.0 | 26.2 | high | 160% |
Merredin | 34.1 | +0.2 | 42.2 | 3rd | 17.6 | -0.2 | 10.0 | 11th | 22.8 | 15.0 | high | 152% |
Northam | 33.9 | -0.3 | 40.7 | 2nd | 15.8 | -1.4 | 9.9 | 12th | 77.7 | 12.1 | v high | 642% |
York | 37.5 | 20th | 16.3 | -0.2 | 9.5 | 12th | 90.9 | 33.0 | high | 275% | ||
South Central (district 10A) | ||||||||||||
Beverley | 34.2 | -0.1 | 40.6 | 2nd | 16.3 | 0.0 | 9.4 | 12th | 82.6 | 13.1 | v high | 631% |
Brookton | 32.3 | -0.7 | 39.6 | 3rd | 15.4 | -0.2 | 7.7 | 12th | 47.5 | 13.6 | v high | 349% |
Corrigin | 32.3 | -0.3 | 41.0 | 3rd | 16.2 | +0.3 | 9.2 | 12th | ||||
Hyden | 34.2 | +0.5 | 42.8 | 3rd | 15.5 | -0.1 | 8.1 | 12th | 15.4 | 20.4 | average | 75% |
Jacup | 27.4 | -0.4 | 36.9 | 5th | 12.9 | -0.2 | 6.3 | 7th | 17.2 | 32.6 | average | 53% |
Katanning | 29.7 | -0.4 | 36.9 | 14th | 13.5 | -0.2 | 8.4 | 6th | 1.4 | 22.5 | average | 6% |
Lake Grace | 30.8 | -0.4 | 38.5 | 3rd | 14.9 | -0.5 | 10.1 | 12th | 27.0 | 37.2 | average | 73% |
Narembeen | 34.0 | 0.0 | 42.0 | 3rd | 16.9 | +0.3 | 11.5 | 6th | 34.1 | 17.7 | high | 193% |
Narrogin | 30.6 | -0.4 | 38.0 | 3rd | 14.8 | +0.6 | 8.4 | 12th | 54.0 | 13.2 | v high | 409% |
Newdegate Research Station | 31.7 | +0.5 | 40.3 | 3rd | 14.0 | +0.1 | 7.8 | 6th | 20.2 | 19.5 | high | 104% |
Pingelly | 31.2 | -0.7 | 38.2 | 2nd | 14.3 | -1.3 | 8.6 | 12th | 33.4 | 11.4 | v high | 293% |
Ravensthorpe | 27.8 | -1.2 | 38.6 | 5th | 14.7 | +0.6 | 9.0 | 7th | 12.4 | 24.8 | average | 50% |
Wagin | 30.7 | -0.4 | 38.6 | 3rd | 14.8 | +0.2 | 9.0 | 12th | 31.8 | 13.0 | v high | 245% |
Wandering | 31.1 | -1.1 | 37.8 | 2nd | 14.8 | +0.6 | 6.8 | 6th | 94.0 | 21.3 | v high | 441% |
Eucla (district 11) | ||||||||||||
Eucla | 28.7 | +2.9 | 46.0 | 18th | 18.1 | +1.4 | 12.8 | 13th | 59.2 | 15.8 | v high | 375% |
Eyre | 28.3 | +1.8 | 43.5 | 4th | 16.7 | +1.4 | 4.9 | 8th | 29.6 | 17.5 | high | 169% |
Forrest | 32.8 | -0.3 | 45.5 | 18th | 17.9 | +1.5 | 12.7 | 8th | 40.2 | 25.3 | high | 159% |
Red Rocks Point | 26.9 | +1.9 | 45.4 | 5th | 19.1 | +0.8 | 12.5 | 13th | 23.4 | 25.9 | average | 90% |
South East (district 12) | ||||||||||||
Bulga Downs | 38.2 | +0.5 | 45.0 | 5th | 22.7 | +0.3 | 15.4 | 31st | ||||
Kalgoorlie-Boulder Airport | 32.8 | -0.8 | 44.0 | 5th | 18.9 | +0.6 | 13.4 | 12th | 45.4 | 27.7 | high | 164% |
Laverton Aero | 35.3 | -0.2 | 44.9 | 5th | 21.7 | +0.2 | 12.5 | 30th | 89.4 | 50.8 | high | 176% |
Leinster Aero | 36.8 | -0.4 | 45.0 | 5th | 23.3 | +0.1 | 13.0 | 30th | 32.0 | 39.7 | average | 81% |
Leonora Aero | 35.3 | -1.7 | 45.5 | 5th | 22.5 | -0.4 | 13.8 | 31st | 76.6 | 51.8 | high | 148% |
Munglinup West | 28.7 | -0.2 | 40.2 | 5th | 14.7 | +0.2 | 8.4 | 12th | 12.0 | 42.0 | low | 29% |
Norseman Aero | 33.0 | +0.6 | 43.6 | 5th | 16.5 | +0.6 | 7.6 | 12th | 38.2 | 38.4 | average | 99% |
Southern Cross Airfield | 34.2 | -0.5 | 43.8 | 3rd | 18.1 | +0.3 | 12.1 | 12th | 0.4 | 31.2 | low | 1% |
North East (district 13) | ||||||||||||
Carnegie | 36.0 | -2.7 | 42.2 | 27th | 23.2 | -0.7 | 13.4 | 31st | 122.2 | 34.8 | v high | 351% |
Giles Meteorological Office | 37.7 | +0.5 | 42.7 | 22nd | 23.3 | -0.2 | 17.6 | 16th | 55.8 | 32.1 | high | 174% |
Telfer Aero | 38.6 | -1.7 | 44.1 | 22nd | 25.8 | -0.2 | 17.9 | 31st | 169.2 | 63.0 | v high | 269% |
Warburton Airfield | 37.1 | -0.8 | 43.2 | 22nd | 24.1 | +1.1 | 14.4 | 31st | 22.0 | 30.7 | average | 72% |
Wiluna | 38.9 | +0.9 | 43.0 | 11th | 23.0 | +0.1 | 14.0 | 30th | 81.4 | 37.4 | high | 218% |
Wiluna Aero | 38.9 | 45.4 | 5th | 25.6 | 14.1 | 31st | 60.8 | |||||
Offshore Islands (district 200) | ||||||||||||
Adele Island | 31.3 | 33.0 | 3rd | 25.5 | 22.3 | 9th | ||||||
Browse Island | 30.3 | 31.5 | 15th | 22.3 | 25th | |||||||
Rowley Shoals | 30.7 | 34.4 | 6th | 27.5 | 22.8 | 30th | ||||||
Varanus Island | 32.8 | +0.9 | 36.2 | 24th | 27.0 | +1.0 | 24.9 | 17th | 49.4 | 34.6 | high | 143% |
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 11 am on Thursday 1 February 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