Greater Adelaide in December 2022: below average rainfall; warmer than average daytimes overall

Rainfall totals in December were below average at all sites across Adelaide and the Hills. Mean maximum temperatures were warmer than average at most sites and mean minimum temperatures were cooler than average at most sites.

Much drier than usual

  • Most sites had less than half their average December rainfall; some sites had around one-third.
  • There were few rain days throughout the month, with the bulk of the rainfall during December being recorded on the 12th, 21st, and 28th.
  • The highest daily rainfall total was 10.8 mm recorded at Edinburgh RAAF on the 12th following isolated thunderstorms and showers about Adelaide and the Hills.

Warmer than average days and cooler than average nights at some sites

  • Mean maximum temperatures were higher than average at some sites around Adelaide and the Hills.
  • The warmest day of the month was the 27th, when most sites at lower elevations reached at least 40 °C, more than 12 °C higher than average.
  • Mean minimum temperatures were cooler than average at most sites around Adelaide and the Hills.
  • Temperatures were much cooler than average around the middle of the month under a fresh southerly airstream.
  • The coldest daily maximum temperature recorded in Greater Adelaide for the month was 11.8 °C at Mount Lofty on the 13th, the lowest at the site in December since 2019.
  • Both mean maximum and mean minimum temperatures for December were within 1 °C of their long-term averages at most sites.

Adelaide (West Terrace / ngayirdapira)

  • Total rainfall for Adelaide (West Terrace / ngayirdapira) was 11.2 mm, which is 43% of the long-term average of 25.9 mm.
  • The mean daily maximum temperature for Adelaide (West Terrace / ngayirdapira) was 27.3 °C, which is 0.4 °C above the long-term average of 26.9 °C.
  • The warmest day was 41.0 °C on the 27th, and the coolest day was on the 12th when the temperature reached 19.1 °C.
  • The mean daily minimum temperature for Adelaide (West Terrace / ngayirdapira) was 14.6 °C, which is 0.5 °C below the long-term average of 15.1 °C.
  • The coldest morning was 8.3 °C on the 8th, and the warmest morning was on the 27th when the minimum temperature was 27.0 °C.

Further information

Media
(03) 9669 4057

Extremes in December 2022
Hottest day 42.2 °C at Edinburgh RAAF on the 27th
42.2 °C at Parafield Airport on the 27th
Warmest days on average 28.6 °C at Parafield Airport
Coolest days on average 22.2 °C at Mount Lofty
Coldest day 11.8 °C at Mount Lofty on the 13th
Coldest night 4.9 °C at Mount Lofty on the 6th
Coolest nights on average 10.5 °C at Mount Lofty
Warmest nights on average 15.0 °C at Noarlunga
Warmest night 28.4 °C at Noarlunga on the 27th
Warmest on average overall 21.4 °C at Parafield Airport
Coolest on average overall 16.4 °C at Mount Lofty
Wettest overall 20.9 mm at Williamstown
Wettest day 10.8 mm at Edinburgh RAAF on the 12th
Strongest wind gust 133 km/h at Sellicks Hill (Mount Terrible Radar) on the 25th

Summary statistics for December 2022
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
December
2022
Diff
from
average
Highest for
December
2022
Mean for
December
2022
Diff
from
average
Lowest for
December
2022
Total for
December
2022
Average
for
December
Rank of
December
2022
Fraction of
December
average
Adelaide (West Terrace / ngayirdapira) 27.3 +0.4 41.0 27th 14.6 -0.5 8.3 8th 11.2 25.9 low 43%
Adelaide Airport 26.5 +0.6 40.0 27th 14.9 +0.2 9.7 15th 7.4 23.1 low 32%
Edinburgh RAAF 28.1 0.0 42.2 27th 14.1 -0.7 7.2 8th 18.0 24.2 average 74%
Kuitpo Forest Reserve 23.4 -0.6 37.6 27th 12.0 -0.6 7.1 8th 14.6 33.0 low 44%
Mount Barker 25.8 +0.6 37.9 27th 11.2 +0.7 6.6 6th 15.6 34.6 average 45%
Mount Crawford AWS 24.3 -0.9 37.5 27th 11.1 -1.1 5.1 15th 20.6 31.7 average 65%
Mount Lofty 22.2 +1.9 35.3 27th 10.5 -0.3 4.9 6th 13.8 44.8 v low 31%
Noarlunga 26.9 +0.3 40.8 27th 15.0 -0.4 8.8 14th 7.0 19.6 v low 36%
Parafield Airport 28.6 +0.7 42.2 27th 14.2 -0.7 6.6 8th 16.8 24.2 average 69%

Daily maximum temperatures for December 2022
12345678910111213141516171819202122232425262728293031
Adelaide (West Terrace / ngayirdapira)26.128.133.635.523.327.220.921.127.235.622.419.119.719.820.922.727.730.132.930.427.925.123.925.232.939.041.022.724.228.232.2
Adelaide Airport26.725.033.135.023.024.020.720.826.335.820.819.719.420.421.523.228.230.734.032.225.522.921.723.027.635.240.021.624.627.730.5
Edinburgh RAAF26.429.233.536.523.727.321.921.727.937.223.520.020.820.721.823.728.731.133.830.528.125.325.426.734.739.842.222.925.728.333.3
Kuitpo Forest Reserve20.625.929.731.417.423.217.916.022.731.818.715.915.215.215.616.621.826.130.027.925.224.022.924.330.934.237.619.018.221.726.8
Mount Barker23.528.532.333.518.424.520.118.424.032.122.518.417.417.819.020.525.328.129.927.928.026.726.728.333.236.637.922.622.225.230.3
Mount Crawford AWS22.125.729.732.218.523.518.916.822.231.122.015.414.715.917.418.923.726.628.526.224.224.624.525.432.036.337.521.121.125.530.6
Mount Lofty19.824.227.830.016.421.116.216.020.929.218.812.211.813.315.316.521.524.527.824.923.623.422.223.029.734.435.318.518.623.928.8
Noarlunga24.726.532.734.222.025.620.720.326.534.921.119.218.619.420.321.626.529.733.332.526.625.323.426.031.638.140.827.031.3
Parafield Airport27.030.034.436.924.327.522.522.827.436.623.920.621.021.522.324.029.131.934.330.228.426.526.327.235.139.842.223.925.729.533.7
Values are the maximum temperature, usually in the 24 hours from 9 am on the day indicated,
and typically occurred in the afternoon of that day.
Temperatures coloured according to their difference
from the long-term average for the period
-10.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0 +1.0 +2.0 +3.0 +4.0 +5.0 +6.0 +7.0 +8.0 +9.0 +10.0 °C Grey outline marks highest
and lowest for the period

Daily minimum temperatures for December 2022
12345678910111213141516171819202122232425262728293031
Adelaide (West Terrace / ngayirdapira)10.913.914.716.214.910.714.08.312.115.016.612.613.39.79.211.214.117.321.624.118.916.611.811.713.417.027.017.611.813.613.2
Adelaide Airport12.013.513.215.215.210.214.19.912.815.717.213.813.510.59.711.914.717.520.224.319.117.213.711.613.317.125.717.811.814.513.5
Edinburgh RAAF12.012.114.413.616.111.814.67.212.915.414.710.612.610.87.811.912.818.022.024.119.116.510.310.312.316.426.817.610.610.711.9
Kuitpo Forest Reserve11.011.915.219.112.27.410.47.18.310.314.07.58.97.18.28.59.912.815.518.815.314.911.610.111.714.523.713.89.410.412.2
Mount Barker11.29.59.412.012.66.611.37.18.510.915.37.98.96.78.59.39.510.711.818.215.613.612.19.610.012.420.515.29.69.513.0
Mount Crawford AWS9.310.515.419.111.25.89.95.67.49.315.17.07.65.95.16.58.811.215.716.815.615.29.68.911.916.723.013.47.79.010.7
Mount Lofty8.410.014.319.09.74.99.05.66.28.815.56.36.75.36.06.08.210.213.916.915.014.09.58.811.015.422.811.47.28.010.2
Noarlunga13.715.118.717.314.810.912.79.410.914.816.412.113.08.810.611.212.916.319.123.318.415.913.112.214.118.928.417.115.0
Parafield Airport12.815.116.813.115.411.512.86.612.015.915.011.212.29.18.711.513.116.521.422.819.516.010.810.112.716.326.717.610.613.014.0
Values are the minimum temperature, usually in the 24 hours to 9 am on the day indicated,
and typically occurred that morning.
Temperatures coloured according to their difference
from the long-term average for the period
-10.0 -9.0 -8.0 -7.0 -6.0 -5.0 -4.0 -3.0 -2.0 -1.0 0.0 +1.0 +2.0 +3.0 +4.0 +5.0 +6.0 +7.0 +8.0 +9.0 +10.0 °C Grey outline marks highest
and lowest for the period

Daily rainfall for December 2022
12345678910111213141516171819202122232425262728293031
Adelaide (Glen Osmond) - - - - - - - - - - - - 3.4 - - - - - - - 2.4 - - - - - - 2.8 - - -
Adelaide (Hope Valley Reservoir) - - - - - - - - - - - 5.4 0.2 0.4 - - - - - - 4.4 - - - - - - 3.4


Adelaide (Keswick) - - - - - - - - - - 0.8 1.8 - 0.2 - - - - - - 3.2 0.4 - - - - - 2.4 - - -
Adelaide (Morphett Vale) - - - - - - - - - - 1.2 2.2 - - - - - - - - 2.8 - - - - - - 2.0


Adelaide (Seaton)










1.4







4.4 1.6




2.6


Adelaide (West Terrace / ngayirdapira) - - - - - - - - - - 0.8 3.2 0.2 0.2 - - - - - - 2.6 0.8 - - - - - 3.2 0.2 - -
Adelaide Airport - - - - - - - - - - 0.2 0.8 - 0.4 - - - - - - 3.2 - - - - - - 2.8 - - -
Adelaide Airport Alert - - - - - - - - - - 0.4 0.6 - 0.4 - - - - - - 2.8 - - - - - - 2.6 0.2 - -
Aldgate - - - - - - - - - - - 6.6 - 4.0 - - - - - - 2.2 - - - - - - 2.0 - - -
Ashton - - - - - - - - - - 0.2 4.8 0.6 1.4 0.2 - - - - - 8.6 0.2 - - - - - 2.6 0.2 - -
Ashton Co-op - - - - - - - - - - 4.4 1.2 1.4 0.2 - - - - - 6.0 0.2 - - - - - 3.4 - - -
Athelstone (Black Hill Alert) - - - - - - - - - - 0.6 6.8 - 0.2 - - - - - - 6.0 0.6 - - - - - 2.8 - - -
Balhannah (Gumbooya) - - - - - - - - - - - 6.2 - 1.4 - - - - - - 5.2 - - - - - - 2.2 - - -
Beaumont - - - - - - - - - - 0.4 2.4 1.0 0.4 - - - - - - 1.4 0.4 - - - - - 2.4 - - -
Belair - - - - - - - - - - 0.6 3.6 0.4 1.0 - - - - - - 2.4 - - - - - - 3.6 - - -
Belair (St Johns) - - - - - - - - - - 0.4 2.6 0.4 0.4 - - - - - - 2.8 - - - - - - 6.2 - - -
Belair (State Flora Nursery) - - - - - - - - - - 0.6 3.2


















Bellevue Heights - - - - - - - - - - 0.6 2.2 0.4 0.8 - - - - - - 2.8 - - - - - - 3.0 0.2 - -
Birdwood - - - - - - - - - - 0.8 3.2 0.2 3.2 - - - - - - 7.0 2.4 - - - - - 1.8 - - -
Birdwood (McVittie's Hill) - - - - - - - - - - 0.2 0.8 - - - - - - - - - - - - - - - - - - -
Brownhill Creek (Scotch College) - - - - - - - - - - 0.4 2.8 1.6 0.4 - - - - - - 3.4 0.2 - - - - - 4.0 - - -
Burnside - - - - - - - - - - 0.4 2.6 - 0.4 - - - - - - 2.0 0.2 - - - - - 2.8 - - -
Cherry Gardens - - - - - - - - - - 1.4 5.8 - 2.4 1.2 - - - - - 2.6 - - - - - - 4.8 - - -
Clarendon









4.4 3.0





3.0





4.0

Crafers West - - - - - - - - - - 0.4 6.0 0.2 2.2 - - - - - - 2.8 - - - - - - 3.2 - - -
Cromer Road - - 0.4 - - - - - - - 0.4 4.4 0.2 1.6 - - - - - - 4.8 2.6 - - - - 1.8 2.8 - - -
Cudlee Creek (Millbrook Reservoir) - - - - - - - - - - 0.4 7.4 0.2 1.2 - - - - - - 4.4 - - - - - - 6.2


Cudlee Creek (Odea Road) - - - - - - - - - - 0.6 4.6 - 0.8 0.4 - - - - - 3.8 1.4 - - - - - 5.2 - - -
Edinburgh RAAF - - - - - - - - - - - 10.8 0.6 0.2 - - - - - - 3.2 1.6 - - - - - 1.6 - - -
Felixstow (Payneham) - - - - - - - - - - 0.4 6.4 - - - - - - - - 4.8 1.2 - - - - - 1.6 0.4 - -
Forreston Alert - - - - - - - - - - 0.4 5.0 - 0.2 - - - - - - 6.6 2.2 - - - - - 1.6 - - -
Gawler - - - - - - - - - - - 10.6 0.8 0.4 - - - - - - 2.6 3.6 - - - - - 1.6 - - -
Gould Creek (Hermitage) - - - - - - - - - - - 5.0 0.4 - - - - - - - 2.4 2.0 - - - - - 1.2 - - -
Greenacres - - - - - - - - - - 0.8 4.2 - 0.2 - - - - - - 6.0 0.4 - - - - - 3.4 - - -
Gumeracha - - - - - - - - - - - - 4.3 1.0 - - - - - - 4.2 1.7 - - - - - 2.0 - -
Hahndorf - - - - - - - - - - 0.7 5.4 0.1 2.0 - - - - - - 3.2 - - - - - - 2.4 - - -
Halbury Road Salisbury (Halbury Road) - - - - - - - - - - 0.6 7.6 0.2 - - - - - - - 2.2 1.6 - - - - - 3.8 - - -
Happy Valley Reservoir - - - - - - - - - - 1.6 2.4 0.4 2.6 - - - - - - 3.4 - - - - - - 4.2


Harrogate (Mount Beevor South) - - - - - - - - - - - 3.4 - 1.6 - - - - - - 5.2 0.4 - - - - - 4.2 - - -
Inglewood - - - - - - - - - - - 1.0 - - - - - - - - 1.2 0.2 - - - - - 0.4 - - -
Kangarilla (Saddlebags) - - - - - - - - - - 1.2 5.8 0.2 1.8 - - - - - - 3.4 - - - - - - 5.6 - - -
Kanmantoo (Millbrae) - - - - - - - - - - 0.2 2.0 - 1.8 0.2 - - - - - 0.8 - - - - - - 2.2 - - -
Kersbrook - - - - - - - - - - 0.4 5.2 0.2 0.8 0.2 - - - - - 5.8 2.4 - - - - - 1.4 0.2 - -
Kilburn - - - - - - - - - - - 4.6 0.8 - - - - - - - 2.8 0.4 - - - - - 3.2 - - -
Kuitpo Forest Reserve - - 0.2 - - - - - - - 1.0 5.2 0.2 1.6 - - - - - - 2.4 0.2 - - - - - 3.6 0.2 - -
Lenswood - - - - - - - - - - 0.2 5.4 - 1.6 0.2 - - - - - 8.8 - - - - - - 2.4 - - -
Lenswood (Stringybark) - 0.2 - - - - - - - - - 3.6 0.4 1.0 - - - - - - 4.2 0.8 - - - - 0.2 2.6 - - -
Lobethal (Graeber) - - - - - - - - - - - 5.0 - 0.8 - - - - - - 4.2 0.6 - - - - - 2.2 - - -
Lobethal (Maidment Road) - - - - - - - - - - - 4.2 - 0.6 0.2 - - - - - 5.0 1.4 - - - - - 7.2 - - -
Long Ridge (Greenhill) - - - - - - - - - - 0.2 3.6 1.0 0.4 - - - - - - 1.6 - - - - - - 2.6 0.2 - -
Longwood Alert - - - - - - - - - - - 3.2 - 1.0 - - - - - - 1.2 0.2 - - - - - 1.2 - 0.2 -
McLaren Vale (Pirramimma Winery) - - - - - - - - - 1.8 - 3.0
















Mitchell Park (Marion) - - - - - - - - - - 0.6 1.6 0.4 0.2 - - - - - - 3.0 0.2 - - - - - 2.2 - - -
Montacute - - - - - - - - - - - 6.6 0.2 0.4 - - - - - - 3.2 0.6 - - - - - 2.6 0.2 - -
Morphettville - - - - - - - - - - 0.2 0.8 0.2 0.2 - - - - - - 2.6 - - - - - - 2.2 - - -
Mount Barker - - - - - - - - - - 0.6 3.4 0.4 4.4 - - - - - - 5.2 - - - - - - 1.6 - - -
Mount Bold Reservoir - - - - - - - - - - 1.2 5.6 0.6 1.8 - - - - - - 2.6 - - - - - - 4.4


Mount Crawford AWS - - - - - - - - - - 0.2 5.4 0.6 0.2 - - - - - - 7.4 4.0 0.2 0.2 - - - 2.4 - - -
Mount Lofty - - 0.2 - - - - - - - 0.2 5.2 0.6 1.6 0.2 - - - - - 3.4 - - - - - - 2.4 - - -
Mt Bold (Scott Creek Alert) - - - - - - - - - - 1.8 5.4 0.2 2.0 0.4 - - - - - 2.2 - - - - - - 4.8 - - -
Mt Torrens - - - - - - - - - - 0.4 6.2 - 0.8 - - - - - - 5.0 1.0 - - - - - 4.6 - - -
Mylor (Biggs Flat) - - - - - - - - - - 0.8 5.8 - 1.0 - - - - - - 3.6 - - - - - - 2.0 - - -
Noarlunga - - - - - - - - - - 1.0 1.2 - 0.8 - - - - - - 1.4 - - - - - - 2.6

-
North Adelaide - - - - - - - - - - 0.8 5.4 - 0.4 - - - - - - 4.4 - - - 3.4

Parafield Airport - - - - - - - - - - - 6.8 1.4 0.2 - - - - - - 1.6 1.6 - - - - - 5.2 - - -
Piccadilly (Woodhouse) - - - - - - - - - - - 5.0 0.2 1.6 - - - - - - - - - - - - - 2.8


Prospect Hill - - - - - - - - - - 0.8 4.0 0.2 2.0 - - - - - - 3.2 - - - - - - 3.8 - - -
Red Creek (Burwood) - - - - - - - - - - - 0.8 0.2 3.0 0.2 - 0.2 - - - 4.8 - - - - - - 1.0 - - -
Rosslyn Park (Seaview) - - - - - - - - - - 0.4 3.6 0.2 - - - - - - - 3.6 - - - - - - - 0.2 - -
Sellicks Beach









0.8 3.2







0.8





1.2


Uraidla










5.6







5.0





3.0


Uraidla (Sutton Creek) - - - - - - - - - - 0.2 5.2 0.2 1.2 - - - - - - 3.8 0.2 - - - - - 2.8 - - -
Verdun - - - - - - - - - - 0.2 6.8 - 4.2 0.2 - - - - - 4.2 - - - - - - 2.0 - - -
Williamstown - - - - - - - - - - 8.6 0.3 0.1 - - - - - - 6.7 3.5 - - - - - 1.7


Williamstown (South Para Reservoir) - - - - - - - - - - - 8.4


















Willunga - - - - - - - - - 4.0 - 1.6 - - - - - - 1.4 - - - - - - 2.0


Woodside (Inverbrackie) - - - - - - - - - - - 4.2 - 1.6 - - - - - - 5.6 0.2 - - - - - 2.2 - - -
Woodside (Wicks Estate) - - - - - - - - - - 0.4 4.8 - 1.6 - - - - - - 6.4 - - - - - - 2.8 - - -
Most values are the precipitation in the 24 hours to 9 am on the day indicated. Days marked with → are part of a longer accumulation, which is shown on the final day.
Values over 100 mm have been rounded to the nearest whole millimetre.
Days marked with - have a rainfall report of zero; days left blank have no rainfall report (which often indicates no rain fell).
Rainfalls coloured
according to the amount
0 1.0 5.0 10.0 15.0 25.0 50.0 100 150 200 300 400 600 millimetres

Notes

The Monthly climate summary, usually published in the first week of the following 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 Tuesday 3 January 2023. 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.

Information about Australian Indigenous seasonal calendars is available at the Indigenous Weather Knowledge website.

Further information

Media
(03) 9669 4057

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