Wednesday, 1 September 2021 - Seasonal Climate Summary for South Australia - Product code IDCKGC23R0
South Australia in winter 2021: Warm days and nights, close to average rainfall across most districts
Winter rainfall was close to average across most of South Australia. Daytime temperatures were above average in most of the state, and very much above average in parts of the far north. Night-time temperatures were above average across most of South Australia, with coastal areas and parts of the southeast districts experiencing very much above average night-time temperatures. In terms of the mean temperature, it was the eighth warmest winter on record, and the warmest since 2013.
Near average rainfall
- Winter rainfall was close to average for most of South Australia.
- It was wetter than average across the western parts of Eyre Peninsula, parts of the Flinders Ranges and Mt. Lofty Ranges, and southern parts of the lower Murray Valley.
- Parts of inland pastoral districts and the far northwest had below average winter rainfall.
- Averaged across South Australia, rainfall was around 11% below the winter average but it was the highest winter rainfall for the state since 2016.
- Throughout the season, cold fronts brought heavy rainfall that saw several locations report their highest winter daily rainfall on record in June and July.
- Some sites on the Eyre Peninsula and across the Mt. Lofty Ranges reported their highest total winter rainfall on record and some other sites had their highest total winter rainfall for at least 20 years.
- Piccadilly (Woodhouse) was the wettest location overall this winter with a total of 621.9 mm of rainfall recorded during the season.
Warm days and nights across most of the state
- Night-time temperatures were above average across most of South Australia, with coastal areas and much of the state's south-east experiencing night-time temperatures that were very much above average.
- Kingscote Aero had its warmest winter night (highest daily minimum temperature) on record in June, and some sites in the state's south-east had their highest winter mean daily minimum temperature for at least 20 years.
- State-wide, minimum temperatures for winter were the warmest since 2016.
- Daytime temperatures during winter were above average in most of the state with very much above average daytime temperatures across the state's north.
- Across the state as a whole, maximum temperature was 1.28 °C warmer than average, the highest since 2018 and coming in ninth warmest on record.
- Despite the above average daytime temperatures for most of the state, Streaky Bay on the western coast of the Eyre Peninsula reported its lowest winter mean daily maximum temperature since 1997.
- In July, a cold front saw several locations report their coldest winter day (lowest maximum temperature) on record.
- For the state as a whole, mean temperature was 1.00 °C warmer than average, the highest since 2013 and coming in eighth warmest on record that also resulted in Mount Barker reporting the highest winter mean temperature for at least 20 years.
Further information
- Media
- media@bom.gov.au (03) 9669 4057
Extremes Maps Records Summaries Important notes the top
| Extremes in winter 2021 | |
|---|---|
| Hottest day | 34.0 °C at Oodnadatta Airport on 22 Aug |
| Warmest days on average | 21.9 °C at Oodnadatta Airport |
| Coolest days on average | 10.4 °C at Mount Lofty |
| Coldest day | 5.2 °C at Mount Lofty on 22 Jul |
| Coldest night | -4.4 °C at Renmark Aero on 9 Jul |
| Coolest nights on average | 3.4 °C at Yongala |
| Warmest nights on average | 11.9 °C at Neptune Island |
| Warmest night | 16.6 °C at Oodnadatta Airport on 28 Jul |
| Warmest on average overall | 14.6 °C at Oodnadatta Airport |
| Coolest on average overall | 8.0 °C at Mount Lofty |
| Wettest overall | 621.9 mm at Piccadilly (Woodhouse) |
| Wettest day | 52.8 mm at Mount Lofty (Cleland Conservation Park) on 28 Jun |
| Strongest wind gust | 135 km/h at Neptune Island on 24 Jul |
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 winter daily rainfall | ||||||
|---|---|---|---|---|---|---|
|
New record (mm) |
Old record |
Years of record |
||||
| Tarcowie | 52.4 | on 14 Jul | 42.9 | on 3 Jun 1939 | 87 | |
| Neptune Island | 47.0 | on 20 Jul | 44.8 | on 7 Jun 1994 | 57 | |
| Strathalbyn Racecourse | 36.6 | on 18 Jun | 35.6 | on 5 Jul 2016 | 26 | |
| Adelaide (Keswick) | 46.8 | on 18 Jun | 43.2 | on 5 Jul 2016 | 21 | |
| Greenock Alert | 39.8 | on 18 Jun | 38.0 | on 1 Jun 2013 | 21 | |
| Milang (Point Sturt) | 35.6 | on 18 Jun | 27.2 | on 12 Jun 2013 | 20 | |
| Record highest winter total rainfall | |||||
|---|---|---|---|---|---|
|
New record (mm) |
Old record |
Years of record |
Average for winter |
||
| Nuriootpa PIRSA | 256.2 | 250.8 | in 2005 | 25 | 172.8 |
| Wudinna Aero | 178.2 | 162.8 | in 2013 | 23 | 105.3 |
| Crafers West | 554.4 | 554.2 | in 2004 | 21 | 399.4 |
| Ironstone Road | 450.0 | 409.0 | in 2013 | 21 | 315.7 |
| Sevenhill | 337.6 | 327.6 | in 2016 | 20 | 213.9 |
| Highest winter total rainfall for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (mm) |
Most recent higher |
Average for winter |
|||
| Georgetown | 266.7 | 331.5 | in 1981* | 172.8 | |
| Huddleston (Willow Ponds) | 210.6 | 212.3 | in 1996 | 152.3 | |
| Coffin Bay | 314.2 | 328.8 | in 1989* | 224.8 | |
| Mount Hope (Fairview) | 287.0 | 291.4 | in 1996* | 199.9 | |
* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported
| Record lowest winter daily maximum temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for winter |
|||
| Adelaide Airport | 9.4 | on 22 Jul | 9.8 | on 28 Jul 1998 | 67 | 15.6 |
| Parafield Airport | 8.9 | on 22 Jul | 9.5 | on 1 Jun 1989 | 65 | 15.8 |
| Edinburgh RAAF | 8.8 | on 22 Jul | 9.4 | on 28 Jul 1998 | 49 | 15.9 |
| Cape Jaffa (The Limestone) | 9.5 | on 22 Jul | = 9.5 | on 10 Aug 2003 | 30 | 14.4 |
| Nuriootpa PIRSA | 6.7 | on 22 Jul | 7.0 | on 28 Jul 1998 | 26 | 14.1 |
| Strathalbyn Racecourse | 8.5 | on 22 Jul | 8.7 | on 7 Aug 2020 | 26 | 15.7 |
| Roseworthy AWS | 9.0 | on 22 Jul | = 9.0 | on 28 Jul 1998 | 25 | 16.1 |
| Gluepot Reserve (Gluepot) | 7.5 | on 22 Jul | 7.7 | on 7 Aug 2020 | 23 | 17.7 |
| Noarlunga | 9.4 | on 22 Jul | 9.5 | on 12 Jul 2005 | 21 | 15.4 |
| Lowest winter mean daily maximum temperature for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (°C) |
Most recent lower |
Average for winter |
|||
| Streaky Bay | 17.0 | 16.8 | in 1997* | 17.1 | |
* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported
| Record highest winter daily minimum temperature | ||||||
|---|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for winter |
|||
| Kingscote Aero | 15.3 | on 7 Jun | 14.9 | on 30 Aug 2018 | 28 | 6.1 |
| Record highest winter mean daily minimum temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for winter |
||
| Mount Barker | 6.8 | = 6.8 | in 2013 | 118 | 4.9 |
| Highest winter mean daily minimum temperature for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (°C) |
Most recent higher |
Average for winter |
|||
| Coonawarra | 6.5 | 6.6 | in 1988 | 5.3 | |
| Cape Jaffa (The Limestone) | 8.5 | 8.8 | in 1993 | 7.8 | |
| Record highest winter mean temperature | |||||
|---|---|---|---|---|---|
|
New record (°C) |
Old record |
Years of record |
Average for winter |
||
| Mount Lofty | 8.0 | = 8.0 | in 2017 | 20 | 7.3 |
| Highest winter mean temperature for at least 20 years | |||||
|---|---|---|---|---|---|
|
Observed (°C) |
Most recent higher |
Average for winter |
|||
| Mount Barker | 10.7 | 11.3 | in 1867* | 9.3 | |
* 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 winter 2021 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
| Mean for winter 2021 |
Diff from average |
Highest for winter 2021 |
Mean for winter 2021 |
Diff from average |
Lowest for winter 2021 |
Total for winter 2021 |
Average for winter |
Rank of winter 2021 |
Fraction of winter average |
|||
| Northwest (district 16) | ||||||||||||
| Andamooka | 20.0 | +0.7 | 30.7 | 31 Aug | 7.2 | +0.5 | 1.0 | 7 Jul | 24.2 | 38.8 | average | 62% |
| Coober Pedy Airport | 20.0 | +0.6 | 32.3 | 20 Aug | 7.2 | +0.3 | 1.2 | 3 Jul | 29.4 | 24.0 | average | 123% |
| Ernabella (Pukatja) | 19.8 | +0.6 | 30.4 | 22 Aug | 5.3 | +0.2 | -3.3 | 11 Jun | 14.4 | 35.0 | average | 41% |
| Roxby Downs (Olympic Dam Aerodrome) | 19.8 | +0.5 | 30.8 | 31 Aug | 6.2 | +1.3 | -1.0 | 30 Jun | 16.4 | 29.6 | average | 55% |
| Tarcoola Aero | 19.9 | +0.2 | 30.3 | 31 Aug | 5.9 | +0.8 | 0.0 | 20 Jun | 32.2 | 36.7 | average | 88% |
| Woomera Aerodrome | 18.9 | +1.1 | 30.6 | 31 Aug | 6.5 | +0.1 | 1.4 | 3 Jul | 19.4 | 42.7 | low | 45% |
| Far North (district 17) | ||||||||||||
| Leigh Creek Airport | 18.3 | +0.6 | 28.3 | 31 Aug | 5.7 | +0.3 | -0.6 | 3 Jul | 28.8 | 46.7 | average | 62% |
| Marree Aero | 21.0 | +0.7 | 29.8 | 31 Aug | 6.2 | +0.5 | 1.5 | 27 Jun | 7.2 | 21.3 | low | 34% |
| Moomba Airport | 21.4 | +0.6 | 32.6 | 22 Aug | 6.9 | -0.3 | 0.7 | 4 Jul | 13.2 | 26.9 | average | 49% |
| Oodnadatta Airport | 21.9 | +1.3 | 34.0 | 22 Aug | 7.2 | +0.6 | 0.4 | 4 Jul | 7.0 | 28.8 | average | 24% |
| Western Agricultural (district 18) | ||||||||||||
| Ceduna AMO | 18.3 | +0.2 | 25.6 | 27 Aug | 6.9 | +0.8 | -1.0 | 26 Aug | 130.4 | 108.6 | high | 120% |
| Cleve | 16.4 | +0.4 | 24.4 | 31 Aug | 8.2 | +0.7 | 2.0 | 22 Jul | 174.6 | 141.3 | high | 124% |
| Cleve Aerodrome | 16.1 | 0.0 | 23.8 | 31 Aug | 8.2 | +0.6 | 2.6 | 27 Aug | 143.6 | 128.8 | average | 111% |
| Coffin Bay (Point Avoid) | 16.3 | 21.3 | 1 Jun | 9.7 | 4.8 | 27 Aug | 263.6 | |||||
| Cultana (Defence) | 18.1 | 28.9 | 31 Aug | 7.1 | 2.6 | 3 Jul | 50.8 | |||||
| Cummins Aero | 16.4 | +0.1 | 22.8 | 1 Jun | 5.9 | +0.4 | 0.0 | 25 Aug | 220.6 | 184.5 | high | 120% |
| Elliston | 17.5 | +0.5 | 23.6 | 10 Aug | 8.7 | +0.5 | 3.1 | 25 Aug | 288.8 | 201.7 | v high | 143% |
| Kimba | 16.3 | +0.1 | 25.0 | 31 Aug | 6.1 | +0.6 | 1.2 | 27 Aug | 171.0 | 123.2 | high | 139% |
| Kyancutta | 18.2 | +0.3 | 26.9 | 31 Aug | 5.7 | +0.7 | -0.8 | 25 Aug | 140.6 | 116.9 | high | 120% |
| Minnipa PIRSA | 16.4 | -0.5 | 23.8 | 31 Aug | 7.3 | +0.4 | 3.0 | 26 Aug | 155.0 | 109.8 | high | 141% |
| Neptune Island | 15.8 | +0.3 | 20.4 | 10 Aug | 11.9 | +0.3 | 7.3 | 17 Jul | 273.8 | 206.5 | high | 133% |
| North Shields (Port Lincoln AWS) | 16.8 | +0.2 | 22.3 | 22 Aug | 7.9 | +0.2 | 2.8 | 27 Aug | 230.8 | 168.1 | v high | 137% |
| Nullarbor | 19.3 | +0.3 | 28.6 | 9 Aug | 6.5 | +0.7 | 0.0 | 11 Jun | 73.6 | 81.4 | average | 90% |
| Port Augusta Aero | 19.0 | +0.3 | 30.5 | 31 Aug | 5.7 | +0.5 | -0.3 | 27 Aug | 76.0 | 57.3 | high | 133% |
| Streaky Bay | 17.0 | -0.1 | 23.5 | 1 Jun | 9.0 | +0.3 | 5.0 | 26 Aug | 217.4 | 171.9 | high | 126% |
| Whyalla Aero | 18.5 | +0.9 | 29.7 | 31 Aug | 6.4 | +0.7 | 0.3 | 27 Aug | 71.6 | 71.0 | average | 101% |
| Wudinna Aero | 17.4 | -0.3 | 25.6 | 31 Aug | 6.8 | +0.8 | -1.2 | 25 Aug | 178.2 | 105.3 | highest | 169% |
| Upper North (district 19) | ||||||||||||
| Hawker | 16.4 | -0.3 | 26.0 | 31 Aug | 5.1 | +1.0 | -1.8 | 3 Jul | 77.7 | 101.7 | average | 76% |
| Yongala | 13.9 | +0.2 | 23.5 | 31 Aug | 3.4 | +0.9 | -1.7 | 7 Jul | 145.9 | 120.6 | high | 121% |
| Northeast (district 20) | ||||||||||||
| Gluepot Reserve (Gluepot) | 18.2 | +0.5 | 29.0 | 31 Aug | 5.0 | +1.1 | -3.5 | 9 Jul | 83.2 | 62.6 | high | 133% |
| Yunta Airstrip | 16.8 | +0.4 | 27.3 | 31 Aug | 4.7 | +1.2 | -2.0 | 21 Jul | 45.6 | 41.3 | average | 110% |
| Lower North (district 21) | ||||||||||||
| Clare High School | 13.6 | +0.1 | 21.8 | 22 Aug | 4.7 | +0.3 | -1.6 | 21 Jul | 244.2 | 197.8 | high | 123% |
| Port Pirie Aerodrome AWS | 17.7 | 28.8 | 31 Aug | 6.7 | -0.7 | 27 Aug | 101.2 | |||||
| Snowtown (Rayville Park) | 16.2 | 0.0 | 25.3 | 31 Aug | 5.7 | +1.0 | -1.5 | 27 Aug | 155.8 | 133.3 | high | 117% |
| Yorke Peninsula (district 22A) | ||||||||||||
| Edithburgh | 16.0 | +0.4 | 22.8 | 22 Aug | 7.6 | -0.2 | 1.3 | 27 Aug | 183.0 | 153.0 | high | 120% |
| Kadina AWS | 16.3 | +0.1 | 24.2 | 22 Aug | 6.6 | +1.4 | -1.6 | 27 Aug | 122.0 | 102.9 | average | 119% |
| Minlaton Aero | 16.0 | 0.0 | 21.8 | 22 Aug | 7.6 | +0.4 | 1.5 | 21 Jul | ||||
| Stenhouse Bay | 16.5 | +0.5 | 22.4 | 1 Jun | 9.5 | 0.0 | 3.2 | 27 Aug | 261.0 | 203.0 | high | 129% |
| Warooka | 20.2 | 31 Aug | 8.2 | +0.2 | 3.6 | 21 Jul | 187.3 | 188.6 | average | 99% | ||
| Kangaroo Island (district 22B) | ||||||||||||
| Cape Borda | 14.6 | 0.0 | 18.8 | 2 Jun | 10.1 | +0.7 | 4.7 | 17 Jul | 328.6 | 253.9 | high | 129% |
| Cape Willoughby | 15.1 | +0.6 | 18.6 | 31 Aug | 10.6 | +0.5 | 6.2 | 25 Jul | 267.3 | 229.9 | high | 116% |
| Kingscote Aero | 16.1 | +0.3 | 20.6 | 2 Jun | 7.2 | +1.1 | 1.0 | 21 Jun | 236.8 | 188.0 | high | 126% |
| Parndana CFS AWS | 14.4 | 20.0 | 2 Jun | 7.9 | 3.6 | 8 Jun | 332.6 | 278.0 | high | 120% | ||
| Adelaide Plains (district 23A) | ||||||||||||
| Adelaide (West Terrace / ngayirdapira) | 16.3 | +0.7 | 23.8 | 22 Aug | 8.9 | +0.9 | 1.9 | 27 Aug | 258.4* | 198.7 | 130%* | |
| Adelaide Airport | 16.1 | +0.5 | 23.6 | 22 Aug | 8.6 | +1.2 | 2.0 | 27 Aug | 199.0 | 165.3 | high | 120% |
| Edinburgh RAAF | 16.3 | +0.4 | 24.2 | 22 Aug | 7.4 | +1.0 | 0.4 | 27 Aug | 201.4 | 155.9 | high | 129% |
| Parafield Airport | 16.6 | +0.8 | 24.4 | 22 Aug | 7.2 | +0.6 | -1.0 | 27 Aug | 206.4 | 165.5 | high | 125% |
| Roseworthy AWS | 16.3 | +0.2 | 24.0 | 22 Aug | 6.8 | +1.0 | 1.0 | 24 Aug | 190.2 | 135.2 | high | 141% |
| County Light (district 23B) | ||||||||||||
| Nuriootpa PIRSA | 14.4 | +0.3 | 22.1 | 22 Aug | 5.6 | +0.8 | -0.5 | 9 Jul | 256.2 | 172.8 | highest | 148% |
| Mount Lofty Ranges (district 23C) | ||||||||||||
| Hindmarsh Island AWS | 16.4 | +0.5 | 23.7 | 22 Aug | 8.6 | +0.4 | 2.7 | 9 Jul | 231.4 | 155.0 | high | 149% |
| Kuitpo Forest Reserve | 13.2 | +0.2 | 20.0 | 2 Jun | 7.2 | +0.3 | 3.1 | 27 Aug | 381.4 | 311.9 | high | 122% |
| Mount Barker | 14.6 | +0.9 | 20.8 | 31 Aug | 6.8 | +1.9 | -0.3 | 27 Aug | 410.2 | 309.9 | high | 132% |
| Mount Crawford AWS | 11.9 | +0.2 | 19.2 | 22 Aug | 6.3 | +0.2 | 2.1 | 22 Jul | 358.6 | 268.3 | high | 134% |
| Mount Lofty | 10.4 | +1.0 | 18.1 | 22 Aug | 5.6 | +0.4 | 1.2 | 22 Jul | 516.8^ | 424.1 | high | 122%^ |
| Noarlunga | 15.7 | +0.3 | 22.0 | 22 Aug | 9.4 | +0.5 | 4.1 | 21 Jul | 228.4 | 182.1 | high | 125% |
| Parawa (Second Valley Forest AWS) | 12.5 | +0.3 | 18.6 | 2 Jun | 7.6 | +0.4 | 2.9 | 27 Aug | 404.6 | 352.9 | average | 115% |
| Upper Murray Valley (district 24A) | ||||||||||||
| Loxton Research Centre | 17.7 | +1.1 | 28.6 | 31 Aug | 5.4 | +1.1 | -3.4 | 9 Jul | 64.2 | 77.3 | average | 83% |
| Renmark Aero | 17.8 | +0.6 | 28.9 | 31 Aug | 5.3 | +1.1 | -4.4 | 9 Jul | 58.4 | 59.0 | average | 99% |
| Lower Murray Valley (district 24B) | ||||||||||||
| Eudunda | 14.0 | +0.2 | 22.5 | 22 Aug | 5.3 | 0.0 | -0.5 | 27 Aug | 197.5 | 158.4 | high | 125% |
| Meningie | 16.3 | +0.7 | 21.1 | 22 Aug | 7.9 | +0.9 | 1.4 | 9 Jul | 264.4 | 181.2 | v high | 146% |
| Murray Bridge | 17.6 | +0.7 | 25.3 | 22 Aug | 6.3 | +0.5 | 0.1 | 27 Aug | 141.3 | 111.0 | high | 127% |
| Murray Bridge (Pallamana Aerodrome) | 16.6 | +0.3 | 24.6 | 22 Aug | 5.6 | +0.9 | -1.6 | 27 Aug | 116.8 | 95.2 | average | 123% |
| Strathalbyn Racecourse | 16.1 | +0.4 | 22.6 | 22 Aug | 7.4 | +0.6 | 0.6 | 9 Jul | 217.2 | 159.3 | high | 136% |
| Upper Southeast (district 25B) | ||||||||||||
| Keith | 16.2 | +0.6 | 23.4 | 22 Aug | 6.5 | +0.7 | -0.4 | 26 Aug | 202.4 | 165.9 | high | 122% |
| Keith (Munkora) | 15.8 | +0.3 | 22.3 | 22 Aug | 5.6 | +0.7 | -1.6 | 26 Aug | 194.2 | 158.7 | high | 122% |
| Lameroo (Austin Plains) | 16.1 | +0.7 | 25.4 | 31 Aug | 5.3 | +0.7 | -2.0 | 27 Aug | 101.8 | 93.0 | average | 109% |
| Lower Southeast (district 26) | ||||||||||||
| Cape Jaffa (The Limestone) | 14.7 | +0.3 | 18.7 | 22 Aug | 8.5 | +0.7 | 1.1 | 9 Jul | 295.8 | 220.7 | high | 134% |
| Coonawarra | 14.7 | +0.3 | 20.4 | 22 Aug | 6.5 | +1.2 | -1.9 | 10 Jul | 236.0 | 228.9 | average | 103% |
| Mount Gambier Aero | 14.4 | +0.7 | 19.3 | 22 Aug | 6.6 | +1.1 | -0.8 | 10 Jul | 332.2 | 280.8 | high | 118% |
| Naracoorte Aerodrome | 14.9 | +0.2 | 21.0 | 22 Aug | 6.5 | +1.1 | -0.3 | 27 Aug | 204.8 | 189.9 | average | 108% |
| Padthaway South | 15.1 | +0.2 | 21.8 | 22 Aug | 6.3 | +0.7 | -1.9 | 10 Jul | 236.2 | 190.0 | high | 124% |
| Robe | 14.3 | +0.2 | 18.1 | 22 Aug | 9.3 | +0.8 | 3.1 | 10 Jul | 360.9 | 286.2 | high | 126% |
| Robe Airfield | 15.0 | 0.0 | 20.0 | 22 Aug | 7.9 | +1.1 | 0.3 | 10 Jul | 352.6 | 275.3 | high | 128% |
* note: This includes an estimated rainfall total of 14 mm for the 22nd and 23rd July at Adelaide (West Terrace / ngayirdapira).
^ note: This includes an estimated rainfall total of 44 mm for the 25th to 27th July at Mount Lofty.
Extremes Maps Records Summaries Important notes the top
Notes
The Seasonal climate summary, generally published on the first working day of each month, lists the main features of the weather in South 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 12 pm on Wednesday 1 September 2021. 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
