Wednesday, 1 July 2020 - Monthly Climate Summary for Western Australia - Product code IDCKGC11R0
Western Australia in June 2020: warm and dry
June 2020 was a very warm and also very dry month for Western Australia. Mean maximum temperatures were above to very much above average across WA, and the statewide mean maximum temperature was the highest on record. Rainfall was below average to very much below average for most of the State, and it was the tenth-driest June on record for Western Australia. It was a very warm start to the year (January–June) for the State, and the statewide mean temperature was the fifth warmest January–June periods on record.
Dry across most of WA
- June rainfall was below to very much below average for most of Western Australia; June rainfall was 66% below average and the tenth-driest June on record for the State as a whole
- It was particularly dry in the eastern Gascoyne, Goldfields and along the Eucla districts with monthly rainfall totals mostly less than 10 mm
- The Lower West and South West districts were wettest areas with monthly rainfall totals between 100 mm and 200 mm, and in excess of 220 mm in isolated locations; the wettest spot was Worsley Downs (in the South West district) with a total of 226.8 mm
- Cold fronts produced isolated heavy daily rainfall in excess of 50 mm in the Lower West and South West on the 18th, 23rd and 29th; 90.2 mm on the 29th at Bickley was the State's highest daily rainfall of the month and its second-highest daily rainfall for June on record
Above average daytime temperatures across WA
- Daytime temperatures were above average to much above average across Western Australia
- Western Australia's mean maximum temperature was 2.52 °C above average, and the highest for June on record
- Overnight temperatures were above average in western and central parts of Western Australia though near average elsewhere; the mean minimum temperature was 0.48 °C for Western Australia
- Western Australia's mean temperature (average of maximum and minimum temperature) was 1.50 °C above average, which was the third-highest for June on record, and the highest since 1996
- Numerous sites, including several locations with at least 70 years of temperature observations, in the western WA and the Goldfields district, had their highest June mean maximum temperature on record
- Western WA experienced a very warm start to June with temperatures persistently in the 20s to low 30s between the 3rd and 10th; several sites set their new record high June temperature
- Frosty mornings with temperatures at or below 2 °C were observed in the South West Land Division in the second half of June, notably on the 20th, 21st and 25th; the lowest temperature was -3.2 °C at Salmon Gums Research Station on the 21st
- It was a very warm start to the year (January–June) for Western Australia, and the statewide mean temperature was the fifth-highest on record for the January-June period
- The statewide mean maximum temperature for the year to date was the fifth-highest on record; the statewide mean minimum temperature for the year to date was the eighth-highest on record
Severe wind gusts in the southwest coast
- Cold fronts produced severe wind gusts in the southwest coastal sites on the 17th, 22nd , 23rd, 28th and 29th; Cape Leeuwin recorded gusts in excess of 110 km/h on those four occasions with the highest gust being 117km/h (63 knots) on the 17th
Further information
- Media
- media@bom.gov.au (03) 9669 4057
Extremes Maps Records Summaries Important notes the top
| Extremes in June 2020 | |
|---|---|
| Hottest day | 36.7 °C at Kalumburu on the 1st |
| Warmest days on average | 33.8 °C at Kalumburu |
| Coolest days on average | 16.9 °C at Shannon |
| Coldest day | 12.7 °C at Rocky Gully on the 18th |
| Coldest night | -3.2 °C at Salmon Gums Res.Stn. on the 21st |
| Coolest nights on average | 5.0 °C at Norseman Aero |
| Warmest nights on average | 24.0 °C at Troughton Island |
| Warmest night | 25.5 °C at Troughton Island on the 17th |
| Warmest on average overall | 27.1 °C at Troughton Island |
| Coolest on average overall |
12.3 °C at Collie East 12.3 °C at Salmon Gums Res.Stn. 12.3 °C at Wandering |
| Wettest overall | 226.8 mm at Worsley Downs |
| Wettest day | 90.2 mm at Bickley on the 29th |
| Strongest wind gust | 117 km/h at Cape Leeuwin on the 17th |
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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Click on a map to show it full size in a pop-up window
| Record highest June temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for June |
|||
| Carnamah | 29.0 | on the 7th | 27.8 | on the 3rd in 1940 | 76 | 19.1 |
| Mullewa | 29.5 | on the 5th | 29.4 | on the 4th in 1946 | 76 | 20.0 |
| Badgingarra Research Stn | 28.1 | on the 5th | 27.2 | on the 28th in 1985 | 51 | 18.8 |
| Jurien Bay | 28.4 | on the 5th | 27.8 | on the 1st in 2019 | 51 | 20.7 |
| Murchison | 31.0 | on the 4th | 29.7 | on the 7th in 1998 | 30 | 21.8 |
| Gosnells City | 26.1 | on the 4th | = 26.1 | on the 5th in 2017 | 29 | 19.8 |
| Bickley | 23.0 | on the 4th | 22.0 | on the 12th in 2000 | 27 | 16.2 |
| Dalwallinu | 28.1 | on the 5th | 27.0 | on the 1st in 2017 | 24 | 18.6 |
| Morawa Airport | 28.6 | on the 5th | 28.4 | on the 5th in 2015 | 24 | 20.1 |
| Shannon | 22.3 | on the 7th | 22.1 | on the 2nd in 2019 | 23 | 15.7 |
| Katanning | 23.1 | on the 10th | 23.0 | on the 16th in 2004 | 22 | 16.1 |
| North Island | 27.1 | on the 5th | = 27.1 | on the 3rd in 2012 | 20 | 22.3 |
| Shark Bay Airport | 30.7 | on the 6th | 30.3 | on the 2nd in 2017 | 20 | 23.9 |
| Record highest June mean daily maximum temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for June |
||
| Northam | 20.9 | = 20.9 | in 2017 | 115 | 18.0 |
| Salmon Gums Res.Stn. | 19.4 | 19.3 | in 2017 | 80 | 16.9 |
| Kalgoorlie-Boulder Airport | 20.2 | 20.0 | in 1985 | 78 | 17.6 |
| Mullewa | 23.1 | = 23.1 | in 2017 | 75 | 20.0 |
| Carnarvon Airport | 26.2 | 25.8 | in 2017 | 73 | 23.5 |
| Port Hedland Airport | 30.3 | = 30.3 | in 2015 | 71 | 27.6 |
| Meekatharra Airport | 23.3 | 22.6 | in 1962 | 70 | 19.7 |
| Ravensthorpe | 19.7 | 19.4 | in 2017 | 58 | 17.3 |
| Eyre | 21.7 | 21.4 | in 2017 | 57 | 19.1 |
| Wongan Hills | 20.7 | 20.6 | in 2017 | 52 | 18.2 |
| Esperance | 20.1 | 19.7 | in 1985 | 51 | 18.1 |
| Rottnest Island | 20.4 | 20.1 | in 2017 | 30 | 18.8 |
| Laverton Aero | 21.9 | 21.0 | in 2015 | 28 | 18.5 |
| Forrest | 21.0 | 20.9 | in 2015 | 27 | 19.1 |
| Jacup | 18.9 | = 18.9 | in 2017 | 26 | 16.9 |
| Karratha Aero | 28.4 | 28.3 | in 2015 | 26 | 26.5 |
| Perth Metro | 21.4 | = 21.4 | in 2017 | 26 | 19.5 |
| Leinster Aero | 22.6 | 21.0 | in 2017 | 25 | 19.2 |
| Mount Magnet Aero | 22.9 | 22.2 | in 2017 | 24 | 19.9 |
| Newman Aero | 25.8 | 24.9 | in 2004 | 23 | 23.0 |
| Busselton Aero | 19.1 | = 19.1 | in 2017 | 22 | 17.9 |
| Hopetoun North | 21.1 | 20.2 | in 2017 | 22 | 19.0 |
| Shannon | 16.9 | 16.8 | in 2017 | 22 | 15.7 |
| Norseman Aero | 20.2 | 19.8 | in 2017 | 20 | 18.0 |
| Witchcliffe | 18.5 | 18.3 | in 2017 | 20 | 17.5 |
| Highest June mean daily maximum temperature for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (°C) |
Most recent higher |
Average for June |
|||
| Eucla | 20.7 | 21.4 | in 1957* | 18.7 | |
* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported
| Record highest June daily minimum temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for June |
|||
| Rottnest Island | 18.0 | on the 11th | = 18.0 | on the 3rd in 2017 | 31 | 13.4 |
| Gosnells City | 17.9 | on the 6th | 17.3 | on the 13th in 2000 | 29 | 9.8 |
| Norseman Aero | 14.8 | on the 12th | 14.4 | on the 8th in 2004 | 21 | 4.7 |
| Record highest June mean daily minimum temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for June |
||
| Badgingarra Research Stn | 10.7 | 10.2 | in 2004 | 51 | 8.4 |
| Rottnest Island | 15.0 | 14.5 | in 2017 | 30 | 13.4 |
| Bickley | 9.8 | 9.2 | in 2004 | 26 | 8.1 |
| Jacup | 7.9 | 7.8 | in 1997 | 26 | 6.5 |
| Perth Metro | 10.7 | 10.6 | in 2004 | 26 | 8.6 |
| Swanbourne | 12.8 | 12.6 | in 2004 | 26 | 10.6 |
| Bridgetown | 7.1 | 7.0 | in 2004 | 22 | 5.2 |
| Katanning | 8.4 | 8.1 | in 2011 | 21 | 6.8 |
| Witchcliffe | 10.6 | 10.5 | in 1999 | 20 | 8.8 |
| Highest June mean daily minimum temperature for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (°C) |
Most recent higher |
Average for June |
|||
| Perth Airport | 11.1 | 11.5 | in 1983 | 9.0 | |
| Pearce RAAF | 11.3 | 11.8 | in 1988 | 9.3 | |
| Wagin | 8.1 | 8.5 | in 1991* | 6.2 | |
| Jandakot Aero | 10.1 | 10.7 | in 1991* | 7.5 | |
| Narrogin | 7.7 | =7.7 | in 1997* | 6.3 | |
| Rocky Gully | 8.7 | =8.7 | in 1997* | 7.7 | |
* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported
| Record highest June mean temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for June |
||
| Narrogin | 12.9 | 12.8 | in 1983 | 99 | 10.9 |
| Dwellingup | 13.0 | 12.9 | in 1985 | 83 | 11.2 |
| Perth Airport | 16.2 | 16.1 | in 1983 | 76 | 14.0 |
| Meekatharra Airport | 16.7 | 16.5 | in 1962 | 70 | 14.3 |
| Bencubbin | 14.3 | 14.2 | in 1983 | 66 | 12.4 |
| Pearce RAAF | 16.3 | 16.2 | in 1983 | 59 | 14.1 |
| Karnet | 13.5 | 13.4 | in 1983 | 54 | 11.9 |
| Merredin | 14.1 | 13.8 | in 2015 | 54 | 12.1 |
| Brookton | 13.2 | 12.9 | in 2015 | 52 | 11.4 |
| Wongan Hills | 14.9 | 14.6 | in 2015 | 52 | 13.0 |
| Badgingarra Research Stn | 16.0 | 15.4 | in 2017 | 49 | 13.6 |
| Narembeen | 13.8 | 13.3 | in 2011 | 47 | 12.0 |
| Kalbarri | 19.1 | 18.7 | in 2007 | 46 | 17.0 |
| Wagin | 13.1 | 12.9 | in 2017 | 44 | 11.3 |
| Rottnest Island | 17.7 | 17.3 | in 2017 | 30 | 16.1 |
| Jandakot Aero | 15.5 | 14.8 | in 1991 | 29 | 13.3 |
| Esperance Aero | 14.3 | 14.0 | in 2017 | 28 | 12.9 |
| Laverton Aero | 14.9 | 14.4 | in 2015 | 28 | 12.7 |
| Bickley | 13.8 | 13.3 | in 2017 | 26 | 12.1 |
| Jacup | 13.4 | 12.7 | in 2017 | 26 | 11.7 |
| Perth Metro | 16.0 | 15.3 | in 2015 | 26 | 14.0 |
| Swanbourne | 16.9 | 16.3 | in 2015 | 26 | 15.1 |
| Leinster Aero | 15.1 | 14.9 | in 2004 | 25 | 13.2 |
| Bunbury | 14.7 | 14.4 | in 1997 | 24 | 13.2 |
| Mount Magnet Aero | 15.9 | 15.7 | in 2015 | 24 | 14.1 |
| Newdegate Research Station | 12.4 | 12.2 | in 2004 | 24 | 10.9 |
| York | 13.1 | 12.9 | in 2004 | 24 | 11.6 |
| Cunderdin Airfield | 14.0 | = 14.0 | in 2004 | 23 | 12.2 |
| Lake Grace | 13.0 | 12.9 | in 2017 | 23 | 11.7 |
| Morawa Airport | 15.6 | = 15.6 | in 2015 | 23 | 13.8 |
| Rocky Gully | 13.0 | 12.7 | in 1996 | 23 | 11.7 |
| Southern Cross Airfield | 12.9 | 12.6 | in 2011 | 23 | 11.3 |
| Bridgetown | 12.4 | 12.0 | in 2004 | 22 | 11.0 |
| Busselton Aero | 14.1 | 13.7 | in 2004 | 22 | 12.8 |
| Hopetoun North | 15.5 | 14.9 | in 2004 | 22 | 13.8 |
| Katanning | 12.9 | 12.6 | in 2017 | 21 | 11.5 |
| Wandering | 12.3 | 12.0 | in 2011 | 21 | 10.8 |
| Witchcliffe | 14.6 | 13.9 | in 1999 | 20 | 13.1 |
| Highest June mean temperature for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (°C) |
Most recent higher |
Average for June |
|||
| Carnarvon Airport | 19.5 | 19.8 | in 1959 | 17.9 | |
| Mullewa | 16.4 | 16.5 | in 1949* | 14.3 | |
| Beverley | 13.5 | 13.8 | in 1983* | 12.0 | |
| Cape Naturaliste | 16.0 | 16.3 | in 1985 | 14.4 | |
| Esperance | 15.0 | 15.1 | in 1985 | 13.6 | |
| Northam | 14.0 | =14.0 | in 1988* | 12.2 | |
| Jarrahwood | 12.8 | 13.1 | in 1985* | 11.3 | |
| Gingin Aero | 15.3 | 17.1 | in 1996 | 13.4 | |
* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported
Extremes Maps Records Summaries Important notes the top
| Summary statistics for June 2020 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for June 2020 |
Diff from average |
Highest for June 2020 |
Mean for June 2020 |
Diff from average |
Lowest for June 2020 |
Total for June 2020 |
Average for June |
Rank of June 2020 |
Fraction of June average |
|||
| North Kimberley (district 01) | ||||||||||||
| Doongan | 30.3 | +1.0 | 33.0 | 14th | 11.7 | +0.1 | 7.0 | 5th | 0 | 4.3 | lowest | 0% |
| Kalumburu | 33.8 | +2.1 | 36.7 | 1st | 13.8 | -0.6 | 8.2 | 6th | 0 | 2.3 | lowest | 0% |
| Mount Elizabeth | 30.1 | +1.7 | 32.5 | 1st | 8.5 | -0.5 | 4.6 | 24th | 0 | 11.0 | lowest | 0% |
| Troughton Island | 30.2 | +1.1 | 32.1 | 2nd | 24.0 | +0.6 | 22.2 | 7th | 0 | 5.9 | lowest | 0% |
| Truscott | 31.8 | +1.5 | 35.0 | 1st | 19.1 | 0.0 | 14.2 | 6th | 0 | 2.7 | v low | 0% |
| Wyndham Aero | 33.0 | +1.5 | 36.3 | 14th | 16.5 | +0.6 | 11.9 | 30th | 0 | 3.1 | lowest | 0% |
| East Kimberley (district 02) | ||||||||||||
| Argyle Aerodrome | 31.3 | +1.8 | 34.9 | 14th | 17.5 | +1.3 | 13.9 | 26th | 0 | 3.7 | lowest | 0% |
| Halls Creek Airport | 28.5 | 32.2 | 14th | 12.6 | 7.7 | 23rd | 0 | |||||
| Kununurra Aero | 31.8 | +1.4 | 35.2 | 14th | 14.8 | -0.9 | 9.7 | 26th | 0 | 3.0 | lowest | 0% |
| Warmun | 30.8 | +1.3 | 34.5 | 14th | 15.5 | 7th | 0 | 5.8 | lowest | 0% | ||
| West Kimberley (district 03) | ||||||||||||
| Bidyadanga | 32.0 | +2.1 | 34.0 | 17th | 15.9 | +0.4 | 12.0 | 7th | 0 | 19.1 | lowest | 0% |
| Broome Airport | 30.9 | +1.7 | 33.0 | 16th | 15.1 | -0.1 | 11.8 | 6th | 0 | 18.2 | lowest | 0% |
| Curtin Aero | 31.8 | +1.0 | 34.4 | 15th | 17.2 | +0.6 | 10.7 | 27th | 0 | 7.0 | lowest | 0% |
| Cygnet Bay | 29.2 | +0.5 | 30.7 | 17th | 17.1 | +0.5 | 13.7 | 12th | 0 | 19.3 | lowest | 0% |
| Derby Aero | 32.0 | +1.3 | 34.2 | 15th | 15.4 | -0.3 | 10.7 | 26th | 0 | 7.6 | lowest | 0% |
| Fitzroy Crossing Aero | 31.2 | +0.7 | 33.8 | 15th | 13.1 | +0.1 | 9.8 | 26th | 0 | 6.6 | lowest | 0% |
| Yampi Sound (Defence) | 32.6 | 35.2 | 15th | 12.2 | 8.8 | 25th | 0.2 | |||||
| De Grey (district 04) | ||||||||||||
| Bedout Island | 26.3 | +0.6 | 28.1 | 10th | 21.6 | +0.7 | 20.1 | 8th | ||||
| Karratha Aero | 28.4 | +1.9 | 31.3 | 29th | 16.3 | +1.2 | 12.5 | 7th | 2.6 | 35.0 | average | 7% |
| Legendre Island | 26.3 | +1.1 | 27.8 | 12th | 20.6 | +1.2 | 18.1 | 7th | ||||
| Mandora | 31.0 | +1.9 | 33.4 | 16th | 13.8 | -0.3 | 8.8 | 25th | 0 | 16.8 | lowest | 0% |
| Marble Bar | 29.7 | +2.7 | 32.5 | 17th | 13.6 | +0.4 | 8.8 | 27th | 0 | 22.3 | lowest | 0% |
| Pardoo Station | 30.0 | +1.6 | 32.2 | 16th | 7.1 | 25th | 0 | 26.6 | lowest | 0% | ||
| Port Hedland Airport | 30.3 | +2.7 | 32.4 | 16th | 14.9 | +0.7 | 10.1 | 27th | 0 | 23.1 | lowest | 0% |
| Fortescue (district 05) | ||||||||||||
| Barrow Island Airport | 25.5 | +1.2 | 26.7 | 18th | 19.0 | +0.2 | 15.7 | 7th | 9.4 | 34.4 | average | 27% |
| Learmonth Airport | 26.6 | +1.8 | 28.8 | 3rd | 14.3 | +1.2 | 10.5 | 7th | 5.6 | 42.9 | low | 13% |
| Mardie | 30.6 | +2.4 | 32.2 | 20th | 15.6 | +1.6 | 11.8 | 9th | 1.6 | 37.1 | low | 4% |
| Onslow Airport | 28.7 | +2.7 | 31.4 | 19th | 16.5 | +2.2 | 12.6 | 8th | 9.8 | 46.0 | average | 21% |
| Thevenard Island | 26.9 | +1.4 | 29.2 | 17th | 19.3 | +0.7 | 13.7 | 8th | 5.4 | 37.0 | low | 15% |
| West Gascoyne (district 06) | ||||||||||||
| Carnarvon Airport | 26.2 | +2.7 | 31.1 | 6th | 12.9 | +0.7 | 9.1 | 9th | 16.8 | 46.2 | low | 36% |
| Murchison | 24.4 | +2.6 | 31.0 | 4th | 7.9 | +0.3 | 1.0 | 16th | 10.4 | 29.1 | low | 36% |
| Shark Bay Airport | 26.3 | +2.4 | 30.7 | 6th | 12.1 | +0.4 | 8.3 | 10th | 25.0 | 45.3 | low | 55% |
| East Gascoyne (district 07) | ||||||||||||
| Newman Aero | 25.8 | +2.8 | 28.7 | 17th | 9.0 | +1.6 | 4.4 | 22nd | 1.0 | 15.9 | average | 6% |
| Paraburdoo Aero | 27.1 | +2.0 | 29.8 | 17th | 12.3 | +1.0 | 8.2 | 27th | 1.4 | 23.1 | low | 6% |
| Murchison (district 07A) | ||||||||||||
| Meekatharra Airport | 23.3 | +3.6 | 27.1 | 4th | 10.1 | +1.3 | 4.5 | 16th | 0 | 29.3 | lowest | 0% |
| Mount Magnet Aero | 22.9 | +3.0 | 27.9 | 10th | 9.2 | +0.9 | 3.5 | 14th | 8.6 | 21.6 | average | 40% |
| Paynes Find | 22.3 | +2.9 | 28.3 | 5th | 7.2 | +0.6 | 1.7 | 20th | 20.4 | 40.1 | average | 51% |
| North Coast (district 08) | ||||||||||||
| Dalwallinu | 21.0 | +2.4 | 28.1 | 5th | 8.3 | +1.2 | 2.5 | 20th | 35.8 | 34.6 | average | 103% |
| Geraldton Airport | 24.2 | 30.9 | 5th | 12.6 | 8.1 | 21st | 47.6 | |||||
| Kalbarri | 25.4 | +2.4 | 30.2 | 5th | 12.7 | +1.6 | 7.9 | 16th | 62.6 | 78.0 | average | 80% |
| Morawa Airport | 22.5 | +2.4 | 28.6 | 5th | 8.6 | +1.1 | 3.7 | 19th | 20.4 | 40.7 | average | 50% |
| Mullewa | 23.1 | +3.1 | 29.5 | 5th | 9.8 | +1.2 | 6.2 | 14th | 43.8 | 63.0 | average | 70% |
| North Island | 23.9 | +1.6 | 27.1 | 5th | 17.1 | +0.5 | 10.2 | 17th | 39.8 | 61.7 | low | 65% |
| Wongan Hills | 20.7 | +2.5 | 26.3 | 4th | 9.1 | +1.4 | 4.0 | 20th | 48.0 | 69.4 | average | 69% |
| Central Coast (district 09) | ||||||||||||
| Badgingarra Research Stn | 21.2 | +2.4 | 28.1 | 5th | 10.7 | +2.3 | 6.2 | 20th | ||||
| Bickley | 17.8 | +1.6 | 23.0 | 4th | 9.8 | +1.7 | 3.8 | 20th | 224.0 | 198.1 | average | 113% |
| Garden Island HSF | 20.5 | +1.4 | 24.6 | 5th | 13.3 | +1.2 | 7.9 | 21st | ||||
| Gingin Aero | 21.4 | +1.7 | 26.8 | 4th | 9.3 | +2.1 | 1.4 | 25th | 7.6 | 109.1 | lowest | 7% |
| Jandakot Aero | 21.0 | +1.9 | 24.6 | 9th | 10.1 | +2.6 | 3.3 | 20th | 101.4 | 152.4 | low | 67% |
| Karnet | 18.3 | +1.9 | 22.2 | 9th | 8.9 | +1.6 | 3.3 | 19th | 179.1 | 209.6 | average | 85% |
| Lancelin | 22.4 | +2.1 | 28.3 | 4th | 11.8 | +1.0 | 6.8 | 20th | 82.0 | 117.4 | low | 70% |
| Millendon (Swan Valley) | 21.2 | 25.8 | 4th | 10.3 | 3.3 | 25th | 117.0 | |||||
| Pearce RAAF | 21.4 | +2.5 | 26.0 | 4th | 11.3 | +2.0 | 4.1 | 20th | 110.8 | 130.7 | average | 85% |
| Perth Airport | 21.3 | +2.3 | 25.9 | 4th | 11.1 | +2.1 | 5.9 | 20th | 100.0 | 155.1 | low | 64% |
| Perth Metro | 21.4 | +1.9 | 25.5 | 4th | 10.7 | +2.1 | 3.4 | 20th | 115.4 | 127.3 | average | 91% |
| Rottnest Island | 20.4 | +1.6 | 22.9 | 9th | 15.0 | +1.6 | 10.8 | 18th | 73.6 | 97.5 | average | 75% |
| Swanbourne | 21.0 | +1.5 | 24.9 | 5th | 12.8 | +2.2 | 6.1 | 20th | 103.4 | 126.2 | low | 82% |
| South Coast (district 09A) | ||||||||||||
| Albany | 18.9 | +2.2 | 23.4 | 8th | 10.4 | +1.3 | 6.0 | 20th | 100.4 | 130.9 | low | 77% |
| Albany Airport | 18.6 | 23.3 | 8th | 9.1 | 2.1 | 20th | 74.4 | |||||
| Bridgetown | 17.8 | +1.0 | 22.5 | 7th | 7.1 | +1.9 | -1.0 | 21st | 148.0 | 106.6 | average | 139% |
| Bunbury | 19.5 | +1.0 | 22.6 | 5th | 9.9 | +1.9 | 2.5 | 19th | 152.2 | 136.9 | average | 111% |
| Busselton Aero | 19.1 | +1.2 | 22.2 | 5th | 9.1 | +1.5 | 2.3 | 21st | 101.6 | 125.7 | average | 81% |
| Cape Leeuwin | 18.8 | +1.4 | 21.3 | 7th | 13.5 | +1.3 | 8.9 | 20th | 85.6 | 174.0 | v low | 49% |
| Cape Naturaliste | 19.4 | +2.0 | 22.2 | 9th | 12.7 | +1.2 | 8.4 | 21st | 85.6 | 160.8 | v low | 53% |
| Collie East | 18.5 | +1.1 | 22.8 | 7th | 6.2 | +1.9 | -1.4 | 20th | 147.6 | 107.6 | high | 137% |
| Donnybrook | 19.4 | +1.9 | 23.5 | 6th | 168.6 | 187.0 | average | 90% | ||||
| Dwellingup | 18.1 | +2.1 | 22.0 | 9th | 7.9 | +1.4 | 0.4 | 20th | 166.6 | 235.3 | low | 71% |
| Esperance | 20.1 | +2.0 | 25.9 | 17th | 10.0 | +0.8 | 3.8 | 21st | 52.2 | 76.9 | low | 68% |
| Esperance Aero | 19.5 | +2.1 | 25.1 | 17th | 9.1 | +0.6 | 3.3 | 21st | 34.8 | 65.5 | low | 53% |
| Hopetoun North | 21.1 | +2.1 | 25.9 | 10th | 9.8 | +1.3 | 3.4 | 21st | 12.0 | 47.4 | lowest | 25% |
| Jarrahwood | 18.7 | +1.4 | 23.0 | 6th | 7.0 | +1.7 | -1.2 | 21st | 143.6 | 157.1 | average | 91% |
| Mandurah | 19.9 | +1.2 | 24.1 | 5th | 13.1 | +1.6 | 7.5 | 20th | 108.0 | 117.7 | average | 92% |
| North Walpole | 18.0 | +1.0 | 23.6 | 7th | 10.5 | +0.6 | 4.0 | 21st | 134.0 | 159.6 | average | 84% |
| Rocky Gully | 17.2 | +1.5 | 21.9 | 7th | 8.7 | +1.0 | 4.0 | 19th | 83.2 | 87.7 | average | 95% |
| Shannon | 16.9 | +1.2 | 22.3 | 7th | 8.3 | +0.7 | 2.8 | 21st | 124.2 | 143.6 | average | 86% |
| Windy Harbour | 18.8 | +1.0 | 22.3 | 7th | 10.0 | +0.6 | 2.5 | 20th | 115.2 | 169.2 | low | 68% |
| Witchcliffe | 18.5 | +1.0 | 21.6 | 3rd | 10.6 | +1.8 | 1.6 | 21st | 41.6 | 169.5 | lowest | 25% |
| North Central (district 10) | ||||||||||||
| Bencubbin | 20.0 | +2.5 | 25.7 | 10th | 8.5 | +1.3 | 4.4 | 20th | 27.9 | 48.0 | low | 58% |
| Cunderdin Airfield | 20.6 | +2.1 | 27.2 | 10th | 7.5 | +1.6 | 1.8 | 25th | 39.4 | 36.7 | average | 107% |
| Merredin | 19.9 | +2.5 | 26.0 | 10th | 8.3 | +1.6 | 2.2 | 19th | 41.6 | 48.7 | average | 85% |
| Northam | 20.9 | +2.9 | 25.7 | 5th | 7.2 | +0.8 | 1.9 | 17th | 51.6 | 78.2 | low | 66% |
| York | 20.3 | +1.8 | 24.0 | 10th | 5.9 | +1.2 | -0.5 | 20th | 55.0 | 59.4 | average | 93% |
| South Central (district 10A) | ||||||||||||
| Beverley | 19.7 | +1.7 | 24.4 | 4th | 7.2 | +1.3 | 0.6 | 20th | 62.8 | 76.8 | average | 82% |
| Brookton | 19.2 | +2.0 | 23.3 | 7th | 7.2 | +1.7 | 1.0 | 19th | 53.6 | 83.7 | average | 64% |
| Corrigin | 18.6 | +2.1 | 24.0 | 10th | 7.2 | +1.4 | 2.0 | 20th | 67.2 | 59.3 | average | 113% |
| Jacup | 18.9 | +2.0 | 24.0 | 10th | 7.9 | +1.4 | 2.2 | 20th | 33.0 | 41.4 | low | 80% |
| Katanning | 17.4 | +1.3 | 23.1 | 10th | 8.4 | +1.6 | 2.3 | 21st | 59.0 | 56.4 | average | 105% |
| Lake Grace | 18.6 | +1.6 | 23.8 | 17th | 7.5 | +1.1 | 2.5 | 21st | 34.8 | 31.8 | average | 109% |
| Narembeen | 20.0 | +2.4 | 25.0 | 10th | 7.9 | +1.5 | 2.8 | 19th | 36.8 | 50.6 | average | 73% |
| Narrogin | 18.1 | +2.6 | 22.5 | 7th | 7.7 | +1.4 | -0.2 | 20th | 55.2 | 85.1 | low | 65% |
| Newdegate Research Station | 18.3 | +1.5 | 23.9 | 10th | 6.6 | +1.6 | 0.3 | 25th | 43.0 | 48.5 | average | 89% |
| Ravensthorpe | 19.7 | +2.4 | 24.5 | 10th | 7.5 | 26th | 25.4 | 43.1 | low | 59% | ||
| Wagin | 18.3 | +1.9 | 23.4 | 10th | 8.1 | +1.9 | 0.7 | 20th | 50.3 | 71.3 | average | 71% |
| Wandering | 18.4 | +1.4 | 22.2 | 3rd | 6.2 | +1.6 | -1.4 | 20th | 74.0 | 81.2 | average | 91% |
| Eucla (district 11) | ||||||||||||
| Balladonia | 20.3 | +2.2 | 25.0 | 27th | 6.1 | +0.3 | -0.7 | 22nd | 12.2 | 25.7 | low | 47% |
| Eucla | 20.7 | +2.0 | 27.1 | 29th | 7.8 | -0.4 | 4.1 | 10th | 12.2 | 30.0 | low | 41% |
| Eyre | 21.7 | +2.6 | 28.7 | 28th | 6.6 | -0.1 | -2.5 | 25th | 15.7 | 39.1 | low | 40% |
| Forrest | 21.0 | +1.9 | 27.6 | 29th | 5.2 | -0.7 | 0.3 | 10th | 8.8 | 14.7 | average | 60% |
| Red Rocks Point | 20.2 | +1.0 | 27.5 | 27th | 8.5 | -0.3 | 1.3 | 10th | 0 | 30.3 | v low | 0% |
| South East (district 12) | ||||||||||||
| Bulga Downs | 22.4 | +2.5 | 27.7 | 10th | 6.0 | -0.3 | 0.5 | 22nd | 5.6 | 26.7 | low | 21% |
| Kalgoorlie-Boulder Airport | 20.2 | +2.6 | 25.6 | 17th | 7.4 | +1.1 | 1.5 | 25th | 7.4 | 27.1 | low | 27% |
| Laverton Aero | 21.9 | +3.4 | 26.9 | 17th | 7.9 | +1.0 | 1.1 | 14th | 2.6 | 14.6 | low | 18% |
| Leinster Aero | 22.6 | +3.4 | 27.5 | 17th | 7.6 | +0.4 | 1.2 | 14th | 0.6 | 14.6 | v low | 4% |
| Leonora Aero | 22.2 | +2.9 | 27.7 | 11th | 7.8 | +0.7 | 2.7 | 19th | 6.8 | 14.0 | low | 49% |
| Munglinup West | 19.9 | +2.2 | 26.1 | 11th | 8.2 | +0.5 | 3.7 | 21st | 27.8 | 37.3 | average | 75% |
| Norseman Aero | 20.2 | +2.2 | 25.2 | 17th | 5.0 | +0.3 | -1.6 | 21st | 7.4 | 17.0 | low | 44% |
| Salmon Gums Res.Stn. | 19.4 | +2.5 | 25.2 | 17th | 5.3 | -0.3 | -3.2 | 21st | 17.0 | 37.9 | low | 45% |
| Southern Cross Airfield | 20.1 | +2.1 | 26.8 | 10th | 5.7 | +1.1 | 0.7 | 9th | 27.6 | 27.3 | average | 101% |
| North East (district 13) | ||||||||||||
| Carnegie | 23.4 | +2.2 | 28.0 | 29th | 6.8 | -0.4 | 2.4 | 21st | 1.6 | 15.0 | low | 11% |
| Giles Meteorological Office | 22.0 | +1.7 | 26.0 | 30th | 7.4 | -0.6 | 2.0 | 22nd | 0 | 17.8 | lowest | 0% |
| Telfer Aero | 27.5 | +2.1 | 30.2 | 18th | 13.0 | +1.1 | 8.8 | 26th | 0 | 12.4 | lowest | 0% |
| Warburton Airfield | 22.7 | +2.0 | 28.2 | 12th | 7.3 | +0.7 | 0.4 | 23rd | 2.0 | 17.7 | average | 11% |
| Wiluna Aero | 23.6 | 28.4 | 17th | 6.6 | -0.9 | 16th | 0.2 | |||||
| Offshore Islands (district 200) | ||||||||||||
| Adele Island | 27.8 | 29.2 | 16th | 23.0 | 19.2 | 2nd | ||||||
| Browse Island | 28.6 | 29.8 | 2nd | 26.2 | 25.1 | 25th | ||||||
| Varanus Island | 26.1 | +1.3 | 27.3 | 28th | 21.9 | +1.0 | 20.7 | 8th | 0.2 | 26.7 | low | 1% |
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 10 am on Wednesday 1 July 2020. 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
Unless otherwise noted, all maps, graphs and diagrams in this page are licensed under the Creative Commons Attribution 4.0 International Licence
