Greater Adelaide in spring 2018: drier than average with warm days

Spring rainfall was less than average at sites throughout Adelaide and the Hills. Daytime temperatures for spring were generally warmer than average, while night time temperatures were cooler than average in most suburbs.

Drier than average

  • Rainfall totals for spring were less than average at sites throughout Adelaide and the Hills
  • The drier than average spring came despite above average rainfall across the city during November
  • September was a particularly dry month, with most sites in Greater Adelaide receiving less than half their monthly average rainfall
  • Spring rainfall totals ranged from 61% of average at Adelaide (West Terrace / ngayirdapira) to 85% of average at Parafield Airport

Warm days, cool nights

  • Daytime temperatures were generally warmer than average across the central and northern suburbs of Adelaide, but were average or cooler than average in some southern and eastern areas
  • Maximum temperatures ranged from 0.3 °C cooler than average at Noarlunga and Kuitpo Forest Reserve to 1.6 °C warmer than average at Mount Lofty
  • Night time temperatures were cooler than average at most sites around Adelaide and the Hills
  • Minimum temperatures ranged from 0.8 °C cooler than average at Mount Crawford to 0.2 °C warmer than average at Adelaide Airport and Mount Barker

Adelaide (West Terrace / ngayirdapira)

  • Total rainfall for Adelaide (West Terrace / ngayirdapira) was 76.6 mm, which is 61% of the long-term average of 125.7 mm
  • The mean daily maximum temperature for Adelaide (West Terrace / ngayirdapira) was 22.1 °C, which is 0.7 °C above the long-term average of 21.4 °C. The warmest day was 36.1 °C on 19 Nov, and the coolest day was on 15 Sep when the temperature reached 13.3 °C
  • The mean daily minimum temperature for Adelaide (West Terrace / ngayirdapira) was 11.1 °C, which is 0.1 °C below the long-term average of 11.2 °C. The coldest morning was 3.4 °C on 3 Sep, and the warmest morning was on 19 Nov when the minimum temperature was 23.2 °C

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Extremes in spring 2018
Hottest day 37.9 °C at Parafield Airport on 19 Nov
Warmest days on average 23.2 °C at Parafield Airport
Coolest days on average 16.6 °C at Mount Lofty
Coldest day 7.2 °C at Mount Lofty on 15 Sep
Coldest night -1.5 °C at Rosedale (Turretfield Research Centre) on 4 Sep
Coolest nights on average 7.4 °C at Mount Lofty
Warmest nights on average 11.4 °C at Noarlunga
Warmest night 24.7 °C at Parafield Airport on 1 Nov
Warmest on average overall 16.9 °C at Adelaide (Kent Town)
Coolest on average overall 12.0 °C at Mount Lofty
Wettest overall 218.8 mm at Uraidla
Wettest day 56.6 mm at Ashton on 22 Nov
Strongest wind gust 107 km/h at Mount Crawford AWS on 15 Oct



Summary statistics for spring 2018
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
spring
2018
Diff
from
average
Highest for
spring
2018
Mean for
spring
2018
Diff
from
average
Lowest for
spring
2018
Total for
spring
2018
Average
for
spring
Rank of
spring
2018
Fraction of
spring
average
Adelaide (Kent Town) 22.6 +0.4 36.6 19 Nov 11.3 -0.5 3.8 4 Sep 93.6 130.1 low 72%
Adelaide (West Terrace / ngayirdapira) 22.1 +0.7 36.1 19 Nov 11.1 -0.1 3.4 3 Sep 76.6 125.7 low 61%
Adelaide Airport 21.5 +0.4 36.6 19 Nov 11.1 +0.2 2.9 4 Sep 67.4 105.8 low 64%
Edinburgh RAAF 22.9 +0.5 37.3 19 Nov 10.2 -0.2 0.5 4 Sep 88.4 109.4 average 81%
Kuitpo Forest Reserve 18.8 -0.3 34.5 19 Nov 9.1 -0.4 3.4 4 Sep 122.4 160.3 low 76%
Mount Barker 20.7 +1.1 33.0 19 Nov 7.6 +0.2 -0.6 4 Sep 127.4 191.0 low 67%
Mount Crawford AWS 18.6 0.0 33.2 19 Nov 8.1 -0.8 1.7 24 Sep 126.8 150.9 average 84%
Mount Lofty 16.6 +1.6 30.8 19 Nov 7.4 -0.2 0.8 24 Sep 179.2 221.4 average 81%
Noarlunga 21.3 -0.3 36.6 19 Nov 11.4 -0.6 5.1 16 Sep 46.2* 96.3
Parafield Airport 23.2 +1.1 37.9 19 Nov 10.0 -0.4 1.4 4 Sep 94.2 110.3 average 85%
Rosedale (Turretfield Research Centre) 22.9 +0.8 37.1 19 Nov 8.1 -0.6 -1.5 4 Sep 93.0 124.9 average 74%

* note: there was missing rainfall data on 22–23 Nov


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 11 am on Monday 3 December 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

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(03) 9669 4057
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