Friday, 1 March 2019 - Seasonal Climate Summary for Greater Adelaide - Product code IDCKGC23L0
Greater Adelaide in summer 2018–19: warmer and drier than average
Rainfall totals for summer were below average throughout Adelaide and the Hills. Several heatwave events resulted in many sites setting new temperature records during the season and both daytime and night-time temperatures were warmer than average for summer.
Drier than average
- Rainfall totals for summer were below average throughout Adelaide and the Hills
- Edinburgh RAAF had its driest summer for 27 years; Adelaide Airport and Noarlunga had their driest summer since 2000–01; several other sites around Greater Adelaide had their driest summer for at least 10 years
- The wettest sites were in the Adelaide Hills where Ashton recorded 90.0 mm for the season
- The lowest totals for summer were generally in suburbs north of the city, with Regency Park recording just 10.4 mm for the season
- Mount Lofty had 47 consecutive days with no recorded rainfall from 21 December 2018 to 5 February 2019, exceeding the site's previous longest run of 24 such dry days from 4–27 February 2015
- Rainfall totals ranged from 24% of average at Edinburgh RAAF to 74% of average at Kuitpo Forest Reserve
- Edinburgh RAAF had its lowest total summer rainfall since 1990–91
Warmer than average
- On 24 January, several sites had their highest summer temperature on record, including 46.6 °C in the city at Adelaide (West Terrace / ngayirdapira), which was highest temperature on record at the Bureau's official Adelaide city site
- Mean maximum temperature differences from average ranged from +1.8 °C at Noarlunga to +4.6 °C at Mount Lofty
- Mean minimum temperatures ranged from 0.7 °C warmer than average at Parafield Airport to 1.9 °C warmer than average at Mount Barker
- Adelaide (Kent Town) and Kuitpo Forest Reserve had their highest summer mean daily maximum temperature on record
- Further information about the heatwaves that affected large areas of the country during summer can be found in the Special Climate Statement Widespread heatwaves during December 2018 and January 2019
Adelaide (West Terrace / ngayirdapira)
- The Adelaide (West Terrace / ngayirdapira) site suffered an equipment outage on 19 December 2018 and total rainfall on that day is not known; based on surrounding sites, it is estimated that at least 3 mm fell at the site on the day, in addition to the 26.4 mm on the remaining days of summer, compared to a long-term average of 66.9 mm
- The mean daily maximum temperature for Adelaide (West Terrace / ngayirdapira) was 30.9 °C, which is 2.9 °C above the long-term average of 28.0 °C. The warmest day was 46.6 °C on 24 January, and the coolest day was on 13 December when the temperature reached 16.5 °C
- The mean daily minimum temperature for Adelaide (West Terrace / ngayirdapira) was 17.2 °C, which is 1.0 °C above the long-term average of 16.2 °C. The coldest morning was 10.6 °C on 23 December, and the warmest morning was on 24 January when the minimum temperature was 30.7 °C
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 summer 2018-19 | |
---|---|
Hottest day |
47.7 °C at Adelaide (Kent Town) and
Parafield Airport on 24 Jan 2019 |
Warmest days on average |
32.6 °C at Rosedale (Turretfield Research Centre) |
Coolest days on average |
25.8 °C at Mount Lofty |
Coldest day |
12.6 °C at Mount Lofty on 13 Dec 2018 |
Coldest night |
6.1 °C at Mount Lofty on 2 Dec 2018 |
Coolest nights on average |
13.3 °C at Mount Barker |
Warmest nights on average |
17.8 °C at Adelaide (Kent Town) |
Warmest night |
31.1 °C at Parafield Airport on 24 Jan 2019 |
Warmest on average overall |
24.6 °C at Adelaide (Kent Town) |
Coolest on average overall |
19.6 °C at Mount Lofty |
Wettest overall |
90.0 mm at Ashton |
Driest overall |
10.4 mm at Regency Park |
Wettest day |
31.0 mm at Ashton on 9 Feb 2019 |
Strongest wind gust |
100 km/h at Outer Harbour (Black Pole) on 16 Jan 2019 |
Extremes Maps Records Summaries Important notes the top
Lowest summer total rainfall for at least 20 years | |||||
---|---|---|---|---|---|
Observed (mm) |
Most recent lower |
Average for summer |
|||
Edinburgh RAAF | 15.2 | 12.8 | in 1991* | 64.1 |
* note: there are gaps in the historical record at this site, so it is possible a lower value has gone unreported
Record highest summer temperature | ||||||
---|---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for summer |
|||
Adelaide (West Terrace / ngayirdapira) | 46.6 | on 24 Jan 2019 | 46.1 | on 12 Jan 1939 | 95 | 28.0 |
Adelaide Airport | 45.8 | on 24 Jan 2019 | 44.1 | on 4 Jan 2013 | 65 | 27.4 |
Mount Barker | 44.5 | on 24 Jan 2019 | = 44.5 | on 28 Jan 2009 | 63 | 26.4 |
Parafield Airport | 47.7 | on 24 Jan 2019 | 46.4 | on 25 Jan 2003 | 63 | 29.0 |
Rosedale (Turretfield Research Centre) | 47.2 | on 24 Jan 2019 | 46.4 | on 31 Jan 1968 | 58 | 29.8 |
Edinburgh RAAF | 47.5 | on 24 Jan 2019 | 46.2 | on 23 Jan 1982 | 47 | 29.3 |
Adelaide (Kent Town) | 47.7 | on 24 Jan 2019 | 45.7 | on 28 Jan 2009 | 43 | 28.8 |
Mount Crawford AWS | 43.7 | on 24 Jan 2019 | 43.3 | on 28 Jan 2009 | 25 | 26.6 |
Kuitpo Forest Reserve | 44.0 | on 24 Jan 2019 | 42.7 | on 28 Jan 2009 | 21 | 25.3 |
Mount Lofty | 41.1 | on 24 Jan 2019 | 37.9 | on 28 Jan 2018 | 20 | 21.2 |
Record highest summer mean daily maximum temperature | |||||
---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for summer |
||
Adelaide (Kent Town) | 31.5 | 31.2 | in 2000 | 41 | 28.8 |
Kuitpo Forest Reserve | 27.2 | 26.8 | in 2000 | 20 | 25.3 |
Record highest summer mean temperature | |||||
---|---|---|---|---|---|
New record (°C) |
Old record |
Years of record |
Average for summer |
||
Kuitpo Forest Reserve | 20.9 | 20.8 | in 2000 | 20 | 19.5 |
Extremes Maps Records Summaries Important notes the top
Summary statistics for summer 2018-19 | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Maximum temperatures (°C) |
Minimum temperatures (°C) |
Rainfall (millimetres) |
||||||||||
Mean for summer 2018-19 |
Diff from average |
Highest for summer 2018-19 |
Mean for summer 2018-19 |
Diff from average |
Lowest for summer 2018-19 |
Total for summer 2018-19 |
Average for summer |
Rank of summer 2018-19 |
Fraction of summer average |
|||
Adelaide (Kent Town) | 31.5 | +2.7 | 47.7 | 24 Jan 2019 | 17.8 | +1.1 | 11.4 | 14 Dec 2018 | 28.8* | 64.4 | low | 45% |
Adelaide (West Terrace / ngayirdapira) | 30.9 | +2.9 | 46.6 | 24 Jan 2019 | 17.2 | +1.0 | 10.6 | 23 Dec 2018 | 26.4* | 66.7 | low | 40% |
Adelaide Airport | 29.4 | +2.0 | 45.8 | 24 Jan 2019 | 17.0 | +1.4 | 10.3 | 23 Dec 2018 | 27.6 | 60.4 | low | 46% |
Edinburgh RAAF | 31.6 | +2.3 | 47.5 | 24 Jan 2019 | 16.9 | +0.9 | 8.8 | 23 Dec 2018 | 15.2 | 64.1 | v low | 24% |
Kuitpo Forest Reserve | 27.2 | +1.9 | 44.0 | 24 Jan 2019 | 14.6 | +0.9 | 9.0 | 2 Dec 2018 | 63.0 | 85.3 | average | 74% |
Mount Barker | 29.4 | +3.0 | 44.5 | 24 Jan 2019 | 13.3 | +1.9 | 6.2 | 14 Feb 2019 | 60.8 | 86.8 | average | 70% |
Mount Crawford AWS | 28.7 | +2.1 | 43.7 | 24 Jan 2019 | 14.5 | +1.1 | 7.4 | 14 Dec 2018 | 36.0 | 81.9 | low | 44% |
Mount Lofty | 25.8 | +4.6 | 41.1 | 24 Jan 2019 | 13.4 | +1.5 | 6.1 | 2 Dec 2018 | 82.8 | 125.5 | low | 66% |
Noarlunga | 29.4 | +1.8 | 46.2 | 24 Jan 2019 | 17.3 | +0.8 | 10.4 | 22 Dec 2018 | 24.6 | 56.2 | v low | 44% |
Parafield Airport | 32.1 | +3.1 | 47.7 | 24 Jan 2019 | 16.6 | +0.7 | 9.2 | 22 Dec 2018 | 21.4 | 64.8 | low | 33% |
Rosedale (Turretfield Research Centre) | 32.6 | +2.8 | 47.2 | 24 Jan 2019 | 15.5 | +0.8 | 7.4 | 14 Feb 2019 | 30.6 | 61.7 | low | 50% |
* note: data are missing for 19 December 2018 when at least 3 mm is estimated to have fallen at the site
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 Greater Adelaide 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 summary includes data from observing sites in or near the Greater Adelaide “Greater Capital City Statistical Area” (GCCSA). The Australian Bureau of Statistics designed the GCCSAs to “include the population within the urban area of the city, as well as people who regularly socialise, shop or work within the city, and live in small towns and rural areas surrounding the city. It is important to note that GCCSAs do not define the built up edge of the city. They provide a stable definition for these cities and are designed for the output of a range of social and economic survey data.”
This statement has been prepared based on information available at 10 am on Friday 1 March 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