Thursday, 10 January 2019 - Monthly Climate Summary for Western Australia - Product code IDCKGC11R0
Western Australia in December 2018: second warmest December on record
Maximum temperatures in December 2019 were above average across most of Western Australia, and it was the second-warmest December on record and warmest since 1972 for the State as a whole. Minimum temperatures were also above average for much of the State, and the state-averaged mean minimum temperature ranked the fifth-highest in December on record. Rainfall was below average for Western Australia and driest December since 1992.
Dry in the north
- Monthly rainfall was 27% below average for WA, and driest December since 1992
- Thunderstorms produced a number of moderate falls in inland southern WA in early and mid-December; Laverton Aero had its wettest December on record, and Bencubbin had its wettest December since 1995
- Due to lack of tropical cyclone activity in December, many locations in the Kimberley recorded less than half their December average rainfall, and experienced their driest December on record , or driest since 1992
Above average temperatures for most WA
- For WA as a whole, the mean maximum temperature was 2.15 °C above average; second-highest in December on record, behind +2.87 °C in 1972
- The mean minimum temperature was 0.91 °C above average for WA; fifth-highest in December on record
- Persistent extreme high temperatures including many December records were observed in the north and central WA in the last ten days of December
- For WA as a whole, daily mean maximum temperatures on the 25th (42.00 °C ) and 26th (42.35 °C) were the third-warmest and second-warmest December days on record respectively, behind 42.95 °C on 31 December 1972
- A temperature of 49.3 °C at Marble Bar in the Pilbara on the 27th not only exceeded its previous all-time record of 49.2 °C (3 January 1922), but was also the highest temperature for WA in seven years (previous was 49.4 °C at Roebourne on 21 December 2011)
- Wittenoom had its December record (46.2 °C) broken five times towards the end of December; 47.8 °C on the 27th exceeded its previous annual record of 47.6 °C set on 2 January 1998
- Several sites across inland Pilbara and the Kimberley had their warmest December on record or warmest December for at least 20 years, with monthly mean maximum temperatures exceeding 40 °C; Marble Bar's mean maximum of 44.1 °C also claimed the top national hot spot in December on record, and 14 days with temperature over 45 °C at Marble Bar was its another December record (previous was 13 such days in December 1961)
- In addition to record hot days, some sites in the north and central WA also recorded their warmest night on record in late December; a minimum temperature of 34.0 °C at Wittenoom on the 27th was the highest minimum for WA for 25 years when a minimum of 34.2 °C was recorded at Marble Bar on 4 December 1993
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 December 2018 | |
---|---|
Hottest day | 49.3 °C at Marble Bar on the 27th |
Warmest days on average | 44.1 °C at Marble Bar |
Coolest days on average | 21.1 °C at Albany |
Coldest day | 16.6 °C at Mount Barker on the 6th |
Coldest night | 1.2 °C at Eyre on the 15th |
Coolest nights on average |
10.6 °C at Jarrahwood 10.6 °C at Rocky Gully |
Warmest nights on average |
28.0 °C at Troughton Island 27.8 °C at Telfer Aero 27.8 °C at Wyndham Aero |
Warmest night | 34.0 °C at Wittenoom on the 27th |
Warmest on average overall | 35.5 °C at Telfer Aero |
Coolest on average overall | 17.1 °C at North Walpole |
Wettest overall | 154.4 mm at Wyndham |
Wettest day | 54.8 mm at Kununurra Aero on the 31st |
Strongest wind gust |
141 km/h at Leonora Aero on the 9th |
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 December total rainfall | |||||
---|---|---|---|---|---|
New record (mm) |
Old record |
Years of record |
Average for December |
||
Laverton Aero | 75.4 | 71.6 | in 1994 | 25 | 29.9 |
Highest December total rainfall for at least 20 years | |||||
---|---|---|---|---|---|
Observed (mm) |
Most recent higher |
Average for December |
|||
Bencubbin | 43.4 | 67.6 | in 1995* | 13.5 |
* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported
Record lowest December total rainfall | |||||
---|---|---|---|---|---|
New record (mm) |
Old record |
Years of record |
Average for December |
||
Doongan | 37.8 | 43.8 | in 1991 | 31 | 224.5 |
Drysdale River Station | 53.4 | 71.0 | in 1991 | 31 | 200.7 |
Kachana | 37.1 | 63.1 | in 2002 | 24 | 190.7 |
Kalumburu | 41.0 | 70.8 | in 2006 | 21 | 236.5 |
Lowest December total rainfall for at least 20 years | |||||
---|---|---|---|---|---|
Observed (mm) |
Most recent lower |
Average for December |
|||
Chesalon | 2.0 | 1.8 | in 1972* | 24.0 | |
Newdegate Research Station | 1.0 | 0.2 | in 1979 | 15.5 | |
Amrista Park | 1.0 | 0.6 | in 1985 | 15.8 | |
Flora Valley | 17.0 | 7.0 | in 1992 | 96.1 | |
Gibb River | 24.0 | 0.0 | in 1992 | 125.0 | |
Warmun | 52.6 | 49.1 | in 1992 | 119.5 | |
Theda | 81.5 | 65.7 | in 1991* | 205.3 | |
Sophie Downs | 16.6 | 0.0 | in 1992* | 94.3 | |
Country Downs | 15.6 | 0.0 | in 1992* | 126.9 |
* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported
Record highest December temperature | ||||||
---|---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for December |
|||
Marble Bar* | 49.3 | on the 27th | 48.4 | on the 21st in 2011 | 124 | 41.6 |
Meekatharra Airport | 46.0 | on the 26th | 45.3 | on the 31st in 1997 | 69 | 36.5 |
Wittenoom | 47.8 | on the 27th | 46.2 | on the 31st in 1972 | 67 | 39.7 |
Giles Meteorological Office | 45.1 | on the 28th | = 45.1 | on the 5th in 2014 | 63 | 35.8 |
Wiluna | 47.0 | on the 31st | 46.9 | on the 25th in 1990 | 60 | 36.9 |
Derby Aero | 45.6 | on the 21st | 44.9 | on the 1st in 2011 | 33 | 37.2 |
Denham | 42.8 | on the 23rd | 42.4 | on the 24th in 2000 | 31 | 29.2 |
Carnegie | 46.5 | on the 27th | 46.1 | on the 25th in 1990 | 30 | 37.5 |
Doongan | 41.9 | on the 7th | 40.5 | on the 27th in 1992 | 30 | 34.4 |
Warburton Airfield | 47.4 | on the 28th | 45.5 | on the 17th in 2004 | 30 | 36.7 |
Curtin Aero | 46.7 | on the 21st | 45.7 | on the 15th in 2004 | 28 | 38.3 |
Argyle Aerodrome | 45.1 | on the 12th | 44.7 | on the 6th in 2009 | 25 | 37.2 |
Newman Aero | 46.7 | on the 30th | 45.5 | on the 31st in 2015 | 23 | 39.1 |
Fitzroy Crossing Aero | 46.7 | on the 25th | 45.7 | on the 9th in 2009 | 22 | 39.0 |
Kalumburu | 42.6 | on the 20th | 40.3 | on the 6th in 2009 | 21 | 35.2 |
* note: Combined observations are from Marble Bar(004106) and Marble Bar Comparison(004020)
Record lowest December daily maximum temperature | ||||||
---|---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for December |
|||
Karratha Aero | 29.1 | on the 1st | 29.3 | on the 11th in 1995 | 26 | 35.8 |
Record highest December mean daily maximum temperature | |||||
---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for December |
||
Marble Bar* | 44.1 | 43.9 | in 2015 & 1986 | 124 | 41.6 |
Telfer Aero | 43.2 | = 43.2 | in 2015 | 44 | 40.3 |
Newman Aero | 41.7 | = 41.7 | in 2015 | 22 | 39.1 |
Fitzroy Crossing Aero | 43.0 | 42.2 | in 2004 | 21 | 39.0 |
Kalumburu | 39.6 | 37.5 | in 2002 | 20 | 35.2 |
* note: Combined observations are from Marble Bar(004106) and Marble Bar Comparison(004020)
Highest December mean daily maximum temperature for at least 20 years | |||||
---|---|---|---|---|---|
Observed (°C) |
Most recent higher |
Average for December |
|||
Kununurra Aero | 40.5 | 41.4 | in 1986 | 37.1 | |
Giles Meteorological Office | 38.3 | 38.4 | in 1990 | 35.8 | |
Warmun | 40.8 | 41.3 | in 1992 | 38.3 | |
Curtin Aero | 40.4 | 41.3 | in 1993 | 38.3 | |
Doongan | 37.5 | 38.0 | in 1992* | 34.4 | |
Paraburdoo Aero | 42.4 | 42.7 | in 1997 | 40.4 |
* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported
Record highest December daily minimum temperature | ||||||
---|---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for December |
|||
Meekatharra Airport | 31.9 | on the 26th | 31.7 | on the 30th in 1997 | 69 | 22.1 |
Wittenoom | 34.0 | on the 27th | 33.6 | on the 19th in 1987 & 17th in 1972 | 67 | 25.5 |
Mardie | 32.2 | on the 28th | 31.0 | on the 19th in 1987 | 62 | 23.0 |
Wiluna | 31.0 | on the 27th | = 31.0 | on the 30th in 2013 | 59 | 21.1 |
Onslow Airport | 30.1 | on the 28th | = 30.1 | on the 11th in 1962 | 53 | 22.4 |
Telfer Aero | 33.7 | on the 25th | 33.1 | on the 12th in 2015 | 45 | 25.5 |
Doongan | 31.1 | on the 21st | 28.7 | on the 22nd in 1989 | 30 | 23.1 |
Argyle Aerodrome | 33.2 | on the 12th | 31.8 | on the 4th in 2007 | 25 | 25.9 |
Thevenard Island | 28.9 | on the 28th | = 28.9 | on the 23rd in 2016 | 22 | 23.8 |
Kalumburu | 29.3 | on the 13th | = 29.3 | on the 3rd in 2007 | 21 | 24.9 |
Record highest December mean daily minimum temperature | |||||
---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for December |
||
Telfer Aero | 27.8 | 27.4 | in 2015 | 44 | 25.5 |
Doongan | 25.1 | 23.8 | in 2009 | 29 | 23.1 |
Forrest | 15.8 | = 15.8 | in 2016 | 25 | 14.9 |
Newman Aero | 25.7 | 25.1 | in 2017 | 22 | 24.0 |
Fitzroy Crossing Aero | 27.0 | 26.5 | in 2001 | 21 | 25.7 |
Kalumburu | 26.3 | 25.3 | in 2007 | 20 | 24.9 |
Highest December mean daily minimum temperature for at least 20 years | |||||
---|---|---|---|---|---|
Observed (°C) |
Most recent higher |
Average for December |
|||
Kununurra Aero | 26.3 | 26.9 | in 1992 | 25.4 |
Record highest December mean temperature | |||||
---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for December |
||
Telfer Aero | 35.5 | 35.3 | in 2015 | 44 | 32.9 |
Newman Aero | 33.7 | 33.3 | in 2015 | 22 | 31.5 |
Fitzroy Crossing Aero | 35.0 | 34.3 | in 2004 | 21 | 32.3 |
Kalumburu | 33.0 | 31.4 | in 2002 | 20 | 30.0 |
Highest December mean temperature for at least 20 years | |||||
---|---|---|---|---|---|
Observed (°C) |
Most recent higher |
Average for December |
|||
Kununurra Aero | 33.4 | 33.6 | in 1992 | 31.3 | |
Curtin Aero | 33.0 | 34.1 | in 1993 | 31.7 |
Extremes Maps Records Summaries Important notes the top
Summary statistics for December 2018 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
Mean for December 2018 |
Diff from average |
Highest for December 2018 |
Mean for December 2018 |
Diff from average |
Lowest for December 2018 |
Total for December 2018 |
Average for December |
Rank of December 2018 |
Fraction of December average |
|||
North Kimberley (district 01) | ||||||||||||
Doongan | 37.5 | +3.1 | 41.9 | 7th | 25.1 | +2.0 | 22.0 | 29th | 37.8 | 224.5 | lowest | 17% |
Kalumburu | 39.6 | +4.4 | 42.6 | 20th | 26.3 | +1.4 | 23.5 | 22nd | 41.0 | 236.5 | lowest | 17% |
Troughton Island | 32.9 | -0.1 | 34.2 | 22nd | 28.0 | +0.7 | 26.1 | 23rd | 2.4 | 121.5 | lowest | 2% |
Truscott | 34.9 | +0.8 | 38.0 | 24th | 27.4 | +1.4 | 23.5 | 23rd | 11.4 | 192.4 | v low | 6% |
Wyndham Aero | 41.5 | +3.7 | 45.8 | 12th | 27.8 | +1.2 | 22.6 | 31st | 125.6 | 150.5 | average | 83% |
East Kimberley (district 02) | ||||||||||||
Halls Creek Airport | 41.5 | 44.3 | 25th | 26.4 | 21.1 | 25th | 41.8 | |||||
Kununurra Aero | 40.5 | +3.4 | 44.6 | 20th | 26.3 | +0.9 | 22.2 | 31st | 105.4 | 140.4 | average | 75% |
Warmun | 40.8 | +2.5 | 45.2 | 20th | 25.4 | +0.3 | 20.4 | 14th | 52.6 | 119.5 | low | 44% |
West Kimberley (district 03) | ||||||||||||
Bidyadanga | 35.8 | +0.8 | 44.0 | 23rd | 26.9 | +1.1 | 25.0 | 2nd | 4.0 | 58.7 | low | 7% |
Broome Airport | 33.7 | -0.2 | 42.3 | 22nd | 27.1 | +0.6 | 23.1 | 24th | 12.4 | 62.7 | average | 20% |
Curtin Aero | 40.4 | +2.1 | 46.7 | 21st | 25.5 | +0.4 | 21.6 | 18th | 53.8 | 149.6 | low | 36% |
Cygnet Bay | 38.8 | 24th | 26.6 | +1.1 | 23.3 | 2nd | 0 | 87.7 | lowest | 0% | ||
Derby Aero | 38.3 | +1.1 | 45.6 | 21st | 26.6 | +0.3 | 23.4 | 4th | 35.6 | 78.1 | average | 46% |
Fitzroy Crossing Aero | 43.0 | +4.0 | 46.7 | 25th | 27.0 | +1.3 | 22.9 | 31st | 38.2 | 137.7 | v low | 28% |
De Grey (district 04) | ||||||||||||
Bedout Island | 32.0 | -1.5 | 35.0 | 13th | 25.8 | -1.3 | 24.2 | 1st | ||||
Karratha Aero | 35.1 | -0.7 | 42.3 | 23rd | 24.6 | -1.0 | 19.8 | 17th | 0 | 13.6 | lowest | 0% |
Legendre Island | 30.3 | 36.6 | 10th | 24.5 | 20.8 | 17th | ||||||
Mandora | 37.5 | +0.8 | 47.0 | 22nd | 24.3 | -0.2 | 18.8 | 18th | 0 | 33.5 | lowest | 0% |
Marble Bar | 44.1 | +2.3 | 49.3 | 27th | 26.7 | +0.6 | 21.4 | 18th | 1.6 | 30.8 | v low | 5% |
Pardoo Station | 38.8 | +2.2 | 45.0 | 7th | 20.5 | 6th | 0 | 23.8 | lowest | 0% | ||
Port Hedland Airport | 37.0 | +0.4 | 45.2 | 12th | 23.9 | -0.2 | 19.7 | 18th | 0 | 18.7 | lowest | 0% |
Roebourne Aero | 39.7 | +0.4 | 48.9 | 27th | 24.3 | -0.5 | 20.2 | 3rd | 0.2 | 13.4 | average | 1% |
Fortescue (district 05) | ||||||||||||
Barrow Island Airport | 31.0 | -1.3 | 37.9 | 27th | 23.3 | -1.2 | 20.5 | 2nd | 0.4 | 5.3 | average | 8% |
Karijini North | 42.3 | 47.6 | 27th | 26.0 | 19.7 | 17th | 2.8 | |||||
Learmonth Airport | 37.6 | +0.7 | 47.1 | 27th | 20.2 | -0.7 | 16.9 | 12th | 0 | 6.0 | lowest | 0% |
Mardie | 37.0 | -0.5 | 47.7 | 27th | 23.0 | 0.0 | 19.0 | 17th | 0.2 | 8.9 | average | 2% |
Onslow Airport | 36.5 | +0.6 | 49.1 | 27th | 22.4 | 0.0 | 18.7 | 17th | 0 | 3.3 | lowest | 0% |
Thevenard Island | 31.3 | -0.7 | 37.0 | 27th | 22.9 | -0.9 | 20.0 | 3rd | 0 | 7.2 | lowest | 0% |
Wittenoom | 42.5 | +2.8 | 47.8 | 27th | 26.6 | +1.1 | 19.7 | 17th | 0.4 | 48.4 | v low | 1% |
West Gascoyne (district 06) | ||||||||||||
Carnarvon Airport | 30.3 | +0.9 | 42.9 | 20th | 20.4 | -0.3 | 16.8 | 7th | 0.2 | 5.4 | average | 4% |
Denham | 28.6 | -0.6 | 42.8 | 23rd | 20.4 | -0.1 | 17.5 | 1st | 0.4 | 2.3 | average | 17% |
Murchison | 37.6 | +0.2 | 45.5 | 25th | 20.3 | +0.1 | 14.8 | 12th | 0.2 | 13.4 | low | 1% |
Shark Bay Airport | 32.3 | 0.0 | 46.0 | 25th | 19.6 | -0.1 | 16.1 | 1st | 0 | 8.9 | v low | 0% |
East Gascoyne (district 07) | ||||||||||||
Newman Aero | 41.7 | +2.6 | 46.7 | 30th | 25.7 | +1.7 | 19.5 | 18th | 4.0 | 35.5 | low | 11% |
Paraburdoo Aero | 42.4 | +2.0 | 46.5 | 27th | 25.0 | +0.4 | 18.2 | 17th | 1.2 | 26.4 | low | 5% |
Murchison (district 07A) | ||||||||||||
Meekatharra Airport | 38.7 | +2.2 | 46.0 | 26th | 23.6 | +1.5 | 16.9 | 17th | 0 | 14.5 | lowest | 0% |
Mount Magnet Aero | 37.0 | +1.3 | 44.7 | 26th | 21.5 | +0.4 | 14.9 | 12th | 0.4 | 20.3 | v low | 2% |
Paynes Find | 35.8 | +0.8 | 42.5 | 25th | 18.9 | +0.4 | 12.9 | 1st | 0.6 | 12.4 | low | 5% |
North Coast (district 08) | ||||||||||||
Dalwallinu | 34.1 | +1.0 | 41.9 | 25th | 15.4 | -0.4 | 9.4 | 1st | 0 | 12.9 | lowest | 0% |
Geraldton Airport | 29.6 | 41.5 | 21st | 16.4 | 10.9 | 7th | 2.8 | |||||
Kalbarri | 30.5 | -0.7 | 42.0 | 25th | 18.2 | +0.7 | 11.7 | 5th | 12.9 | 3.9 | high | 331% |
Morawa Airport | 35.4 | +0.2 | 42.5 | 25th | 17.1 | -0.4 | 11.2 | 5th | 3.8 | 15.2 | average | 25% |
Mullewa | 34.5 | 0.0 | 43.0 | 25th | 17.2 | +0.1 | 11.0 | 7th | 11.7 | 8.5 | high | 138% |
North Island | 25.8 | -0.8 | 34.4 | 23rd | 19.2 | -0.8 | 15.2 | 17th | 19.8 | 4.4 | high | 450% |
Wongan Hills | 33.6 | +1.1 | 40.5 | 25th | 15.8 | 0.0 | 9.5 | 2nd | 10.2 | 10.0 | high | 102% |
Central Coast (district 09) | ||||||||||||
Badgingarra Research Stn | 32.3 | +0.3 | 40.6 | 14th | 14.7 | -0.3 | 8.9 | 1st | 1.0 | 9.1 | low | 11% |
Bickley | 28.5 | +0.5 | 37.9 | 22nd | 14.1 | +0.5 | 9.8 | 1st | 3.4 | 14.7 | average | 23% |
Garden Island HSF | 24.9 | -0.5 | 38.7 | 22nd | 17.2 | 0.0 | 13.5 | 6th | 1.0 | 10.9 | low | 9% |
Gingin Aero | 30.9 | +0.3 | 41.0 | 22nd | 13.4 | -1.0 | 5.7 | 7th | 0.4 | 10.5 | v low | 4% |
Jandakot Aero | 29.2 | +0.1 | 40.5 | 22nd | 14.7 | 0.0 | 10.0 | 7th | 1.8 | 10.7 | average | 17% |
Jurien Bay | 27.1 | -1.1 | 40.3 | 21st | 15.7 | +0.1 | 10.5 | 7th | 5.2 | 6.6 | average | 79% |
Lancelin | 25.7 | -1.6 | 38.0 | 22nd | 16.1 | -0.1 | 13.1 | 2nd | 5.0 | 8.6 | average | 58% |
Millendon (Swan Valley) | 31.1 | 41.3 | 22nd | 14.4 | 8.0 | 7th | 3.0 | |||||
Pearce RAAF | 32.1 | +1.7 | 42.1 | 22nd | 14.1 | -0.4 | 6.8 | 7th | 2.4 | 11.1 | average | 22% |
Perth Airport | 30.3 | +1.3 | 40.9 | 22nd | 15.2 | +0.3 | 9.0 | 7th | 0.8 | 11.3 | low | 7% |
Perth Metro | 29.6 | +0.5 | 41.2 | 22nd | 16.2 | -0.1 | 12.3 | 7th | 1.8 | 10.9 | low | 17% |
Rottnest Island | 24.3 | -0.7 | 37.9 | 22nd | 17.5 | -0.1 | 13.6 | 6th | 4.4 | 11.3 | average | 39% |
Swanbourne | 26.6 | -1.3 | 39.0 | 22nd | 16.6 | +0.1 | 12.8 | 7th | 1.6 | 11.5 | average | 14% |
South Coast (district 09A) | ||||||||||||
Albany | 21.1 | -0.7 | 27.4 | 22nd | 14.3 | +0.3 | 9.5 | 30th | 22.4 | 30.3 | average | 74% |
Albany Airport | 23.5 | 36.2 | 22nd | 11.8 | 4.8 | 29th | 26.0 | |||||
Bridgetown | 28.4 | +1.0 | 38.1 | 22nd | 10.9 | -0.1 | 4.8 | 29th | 15.6 | 19.5 | average | 80% |
Bunbury | 26.5 | -0.8 | 35.2 | 22nd | 13.0 | -0.5 | 7.3 | 2nd | 5.8 | 17.7 | average | 33% |
Busselton Aero | 27.9 | 0.0 | 35.8 | 22nd | 12.2 | -0.2 | 7.0 | 7th | 20.4 | 10.8 | high | 189% |
Cape Leeuwin | 21.6 | -0.2 | 24.6 | 25th | 15.7 | -0.1 | 12.5 | 6th | 17.2 | 20.7 | average | 83% |
Cape Naturaliste | 24.1 | +0.5 | 33.4 | 22nd | 13.6 | -0.3 | 9.7 | 29th | 13.6 | 13.6 | average | 100% |
Collie East | 28.9 | +0.4 | 37.7 | 22nd | 11.1 | -0.3 | 6.0 | 2nd | 8.6 | 22.0 | average | 39% |
Donnybrook | 28.6 | +0.4 | 38.5 | 22nd | 13.5 | +1.1 | 7.7 | 7th | 12.4 | 16.5 | average | 75% |
Dwellingup | 28.6 | +1.3 | 38.4 | 22nd | 13.0 | +0.4 | 9.5 | 7th | 5.4 | 21.1 | low | 26% |
Esperance | 24.8 | +0.2 | 40.1 | 23rd | 14.4 | 0.0 | 9.9 | 7th | 35.8 | 20.1 | high | 178% |
Esperance Aero | 26.9 | +1.1 | 40.1 | 23rd | 13.1 | -0.3 | 7.3 | 7th | 32.8 | 21.8 | high | 150% |
Hopetoun North | 24.4 | +0.4 | 34.4 | 22nd | 13.8 | +0.1 | 7.7 | 7th | 4.2 | 24.9 | v low | 17% |
Jarrahwood | 28.4 | +1.3 | 37.0 | 22nd | 10.6 | -0.5 | 4.5 | 7th | 19.6 | 17.3 | average | 113% |
Mandurah | 26.8 | -0.2 | 35.8 | 21st | 17.1 | 0.0 | 13.5 | 6th | 5.4 | 16.7 | average | 32% |
Manjimup | 26.1 | +1.2 | 36.8 | 22nd | 11.6 | -0.1 | 7.2 | 7th | 37.2 | 25.6 | high | 145% |
North Walpole | 22.0 | -0.4 | 27.7 | 14th | 12.2 | -0.6 | 7.3 | 29th | 42.8 | 44.7 | average | 96% |
Rocky Gully | 25.7 | +0.2 | 37.1 | 22nd | 10.6 | -0.4 | 3.3 | 29th | 20.2 | 30.3 | average | 67% |
Shannon | 24.1 | -0.2 | 34.3 | 14th | 11.0 | -0.2 | 4.7 | 29th | 74.8 | 32.7 | v high | 229% |
Witchcliffe | 24.3 | -0.4 | 35.5 | 22nd | 12.5 | +0.1 | 6.7 | 29th | 32.8 | 18.6 | high | 176% |
North Central (district 10) | ||||||||||||
Bencubbin | 33.2 | +0.8 | 41.0 | 25th | 17.0 | +1.0 | 11.3 | 7th | 43.4 | 13.5 | v high | 321% |
Cunderdin Airfield | 34.1 | +1.2 | 41.2 | 25th | 14.9 | +0.1 | 6.7 | 7th | 2.4 | 8.8 | low | 27% |
Merredin | 33.4 | +1.3 | 41.8 | 25th | 16.7 | +0.9 | 10.9 | 1st | 24.0 | 14.1 | high | 170% |
Northam | 33.1 | +1.0 | 40.2 | 25th | 15.7 | +0.4 | 8.0 | 1st | 30.3 | 9.5 | high | 319% |
York | 33.4 | +1.2 | 40.1 | 22nd | 14.4 | +0.5 | 6.5 | 1st | 0.5 | 12.8 | low | 4% |
South Central (district 10A) | ||||||||||||
Beverley | 33.9 | +1.7 | 41.0 | 22nd | 14.6 | +0.3 | 7.8 | 1st | 0 | 10.5 | lowest | 0% |
Brookton | 32.5 | +1.5 | 40.2 | 22nd | 13.6 | +0.1 | 9.6 | 7th | 0.4 | 10.5 | low | 4% |
Corrigin | 31.7 | +1.2 | 39.1 | 23rd | 14.2 | +0.2 | 8.6 | 1st | 0.8 | 13.0 | low | 6% |
Hyden | 33.3 | +1.5 | 40.2 | 25th | 13.8 | 0.0 | 7.5 | 7th | 9.1 | 14.6 | average | 62% |
Jacup | 28.2 | +2.0 | 37.4 | 22nd | 11.3 | -0.2 | 6.0 | 7th | 5.0 | 29.1 | v low | 17% |
Katanning | 29.2 | +0.7 | 38.2 | 22nd | 11.9 | +0.2 | 7.5 | 19th | 8.2 | 26.1 | average | 31% |
Lake Grace | 30.8 | +1.5 | 39.8 | 23rd | 13.8 | +0.3 | 9.6 | 19th | 1.4 | 22.2 | low | 6% |
Narembeen | 33.6 | +1.6 | 39.5 | 25th | 14.5 | 0.0 | 10.3 | 7th | 19.7 | 12.9 | high | 153% |
Narrogin | 30.3 | +1.3 | 38.1 | 23rd | 13.5 | +1.1 | 9.9 | 13th | 10.0 | 14.2 | average | 70% |
Pingelly | 31.9 | +1.9 | 38.8 | 22nd | 14.4 | +0.5 | 7.8 | 1st | 3.0 | 12.7 | average | 24% |
Ravensthorpe | 28.2 | +1.0 | 39.0 | 23rd | 13.4 | +0.6 | 6.0 | 8th | 13.9 | 24.0 | average | 58% |
Wagin | 30.5 | +1.2 | 39.1 | 22nd | 13.4 | +0.5 | 9.1 | 1st | 6.3 | 13.3 | average | 47% |
Wandering | 31.1 | +0.8 | 39.6 | 22nd | 12.0 | 0.0 | 6.7 | 1st | 5.4 | 18.8 | average | 29% |
Eucla (district 11) | ||||||||||||
Balladonia | 30.1 | -0.1 | 42.4 | 26th | 13.3 | 0.0 | 8.7 | 22nd | 36.9 | 18.9 | high | 195% |
Eucla | 26.7 | +1.8 | 40.5 | 24th | 16.2 | +1.1 | 10.8 | 2nd | 12.4 | 18.8 | average | 66% |
Eyre | 27.3 | +1.7 | 43.6 | 26th | 13.7 | -0.4 | 1.2 | 15th | 22.6 | 21.2 | average | 107% |
Forrest | 33.3 | +1.8 | 44.6 | 6th | 15.8 | +0.9 | 8.9 | 15th | 47.2 | 26.1 | high | 181% |
Red Rocks Point | 24.3 | -0.4 | 32.6 | 23rd | 16.9 | +0.5 | 10.2 | 2nd | 5.8 | 20.1 | low | 29% |
South East (district 12) | ||||||||||||
Bulga Downs | 36.9 | +0.8 | 44.1 | 26th | 20.7 | +0.6 | 15.9 | 7th | ||||
Kalgoorlie-Boulder Airport | 33.3 | +1.3 | 41.7 | 31st | 17.1 | +0.5 | 10.8 | 7th | 14.4 | 16.5 | average | 87% |
Laverton Aero | 35.4 | +1.6 | 43.1 | 26th | 20.2 | +0.5 | 15.8 | 4th | 75.4 | 29.9 | highest | 252% |
Leinster Aero | 37.2 | +1.8 | 44.2 | 31st | 21.8 | +0.6 | 14.7 | 10th | 18.8 | 26.1 | average | 72% |
Leonora Aero | 36.1 | +0.9 | 44.0 | 26th | 21.0 | +0.2 | 15.8 | 7th | 53.2 | 17.5 | v high | 304% |
Munglinup West | 28.3 | +0.9 | 39.3 | 23rd | 12.4 | -0.2 | 6.3 | 7th | 5.8 | 28.2 | low | 21% |
Norseman Aero | 32.7 | +1.7 | 40.9 | 26th | 14.2 | +0.3 | 6.4 | 7th | 14.0 | 20.7 | average | 68% |
Salmon Gums Res.Stn. | 30.8 | +1.8 | 40.1 | 23rd | 12.2 | 0.0 | 3.5 | 13th | 9.6 | 19.8 | average | 48% |
Southern Cross Airfield | 33.6 | +0.8 | 41.1 | 25th | 16.7 | +1.2 | 10.2 | 7th | 20.0 | 15.8 | high | 127% |
North East (district 13) | ||||||||||||
Carnegie | 39.8 | +2.3 | 46.5 | 27th | 23.4 | +1.2 | 15.9 | 18th | 15.1 | 24.7 | average | 61% |
Giles Meteorological Office | 38.3 | +2.5 | 45.1 | 28th | 22.7 | +0.8 | 14.4 | 15th | 65.4 | 47.3 | high | 138% |
Telfer Aero | 43.2 | +2.9 | 47.4 | 27th | 27.8 | +2.3 | 21.9 | 17th | 12.6 | 47.7 | average | 26% |
Warburton Airfield | 38.7 | +2.0 | 47.4 | 28th | 22.8 | +1.4 | 17.5 | 14th | 30.0 | 31.7 | average | 95% |
Wiluna | 38.5 | +1.6 | 47.0 | 31st | 23.0 | +1.9 | 17.0 | 18th | 24.9 | 22.3 | high | 112% |
Wiluna Aero | 39.1 | 46.4 | 31st | 23.2 | 18.4 | 17th | 26.2 | |||||
Offshore Islands (district 200) | ||||||||||||
Adele Island | 30.9 | 32.2 | 24th | 27.2 | 25.8 | 18th | ||||||
Browse Island | 29.5 | 32.5 | 24th | 27.7 | 22.8 | 22nd | ||||||
Rowley Shoals | 27.8 | 30.1 | 30th | |||||||||
Varanus Island | 30.1 | -1.1 | 33.9 | 27th | 23.8 | -1.1 | 20.9 | 17th | 0 | 2.6 | v low | 0% |
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 Wednesday 2 January 2019. 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