Adelaide in December 2016: Heavy rain and above average temperatures

It was a wet finish to 2016 for Adelaide in December, with heavy rainfall reported between the 8th and 9th, and particularly heavy rainfall leading to localised flash flooding between the 27th and 29th across the Adelaide metropolitan and Hills region. Both day and night temperatures started off cooler than average at the beginning of December, but the last few days saw well above average temperatures.

Heavy rainfall leads to very wet month

  • Heavy rainfall was reported between the 8th and 9th and between the 27th and 29th across the Adelaide metropolitan and Hills region with several locations reporting their wettest December day on record in the latter period
  • In the 24 hours to 9am on the 28th, 110.0 mm of rainfall was recorded at Uraidla, in the Adelaide Hills, marking the sixth-highest December daily rainfall total on record for the Adelaide region
  • With the monthly total rainfall up to three times the long term average across the region, several sites reported their wettest December in several decades
  • With a monthly total of 86.8 mm for the city, it was the sixth-wettest December to be recorded in Adelaide since records began in 1839
  • Adelaide received 61.2mm on 28th; the third-highest December daily rainfall for the city (comparing observations from both Kent Town and West Terrace)

A cooler than average start and then a warmer than average finish

  • The month started with cooler than average temperatures for both maximum and minimum temperatures, but finished with well above average temperatures
  • With heatwave conditions experienced at the end of the month, daytime temperatures were in excess of 12 °C warmer than average around the Christmas period

Damaging winds and flash flooding

  • A deep low pressure system brought record high humidity, heavy rainfall and destructive winds on the 27th-28th, with flash flooding occurring through the Mount Lofty Ranges and Adelaide Metropolitan area
  • A wind gust of 120 km/h was recorded in the early morning at Mount Crawford on the 28th

Further information

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Extremes in December 2016
Hottest day 41.3 °C at Adelaide (Kent Town) on the 25th
41.3 °C at Parafield Airport on the 25th
Warmest days on average 28.9 °C at Parafield Airport
Coolest days on average 22.7 °C at Mount Lofty
Coldest day 13.4 °C at Mount Lofty on the 8th
Coldest night 5.2 °C at Mount Lofty on the 18th
Coolest nights on average 10.9 °C at Mount Lofty
Warmest nights on average 15.4 °C at Adelaide (Kent Town)
Warmest night 26.5 °C at Noarlunga on the 13th
Warmest on average overall 22.0 °C at Adelaide (Kent Town)
Coolest on average overall 16.8 °C at Mount Lofty
Wettest overall 163.0 mm at Uraidla
Wettest day 110.0 mm at Uraidla on the 28th
Strongest wind gust 120 km/h at Mount Crawford AWS on the 28th

Record highest December daily rainfall
New record
(mm)
Old
record
Years of
record
Mount Barker 76.0 on the 28th 63.0 on the 7th in 1986 133
Hahndorf 77.4 on the 28th 49.4 on the 22nd in 2007 131
Uraidla 110.0 on the 28th 77.2 on the 26th in 1959 126
Happy Valley Reservoir 58.0 on the 28th 56.4 on the 4th in 1966 125
Cudlee Creek (Millbrook Reservoir) 92.0 on the 28th 65.5 on the 28th in 1929 103
Parafield Airport 61.2 on the 28th 51.2 on the 8th in 2010 69
Mount Bold Reservoir 66.2 on the 28th 48.6 on the 14th in 1993 66
Edinburgh RAAF 70.0 on the 28th 58.8 on the 8th in 2010 45
Adelaide (Hope Valley Reservoir) 66.4 on the 28th 49.2 on the 8th in 2010 38
Blackwood (Wittunga) 55.4 on the 28th 54.0 on the 8th in 2010 38



Record highest December total rainfall
New record
(mm)
Old
record
Years of
record
Average for
December
McLaren Vale (Pirramimma Winery) 59.4 51.6 in 2010 22 23.3

Highest December total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
December
Cudlee Creek (Millbrook Reservoir) 133.2 147.4 in 1922* 38.6
North Adelaide 85.8 97.1 in 1936* 27.8
Adelaide (Morphett Vale) 64.4 66.9 in 1951* 25.7
Nairne 118.8 167.4 in 1992 32.3
Uraidla 163.0 168.2 in 1992 47.0
Willunga 59.0 112.4 in 1992 25.4
Adelaide Airport 70.6 89.8 in 1993 24.0
Happy Valley Reservoir 75.2 91.2 in 1993 29.3
Lobethal 143.3 168.4 in 1992* 36.8
Hahndorf 119.5 163.0 in 1992* 37.5
Adelaide (Seaton) 77.2 86.6 in 1993* 25.6

* note: there are gaps in the historical record at this site, so it is possible a higher value has gone unreported





Summary statistics for December 2016
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
December
2016
Diff
from
average
Highest for
December
2016
Mean for
December
2016
Diff
from
average
Lowest for
December
2016
Total for
December
2016
Average
for
December
Rank of
December
2016
Fraction of
December
average
Adelaide (Kent Town) 28.7 +1.5 41.3 25th 15.4 -0.2 9.6 18th 86.8 29.1 v high 298%
Adelaide Airport 26.6 +0.8 38.9 25th 14.9 +0.3 8.5 10th 70.6 24.0 v high 294%
Edinburgh RAAF 28.4 +0.5 41.0 25th 14.5 -0.3 7.5 16th 90.0 25.6 v high 352%
Kuitpo Forest Reserve 24.3 +0.5 36.6 25th 12.4 -0.2 8.1 15th 85.2 35.5 v high 240%
Mount Barker 26.5 +1.4 38.4 25th 11.5 +1.0 6.2 3rd 108.8 35.0 v high 311%
Mount Crawford AWS 25.3 +0.3 37.5 25th 11.6 -0.5 5.9 18th 106.6 34.8 v high 306%
Mount Lofty 22.7 +3.3 35.4 25th 10.9 +0.4 5.2 18th 133.6
Noarlunga 26.6 +0.2 38.9 25th 15.2 -0.2 8.5 18th 48.0 21.0 v high 229%
Parafield Airport 28.9 +1.1 41.3 25th 14.6 -0.3 7.3 18th 78.0 25.1 v high 311%

Daily maximum temperatures for December 2016
12345678910111213141516171819202122232425262728293031
Adelaide (Kent Town)24.124.932.229.022.723.631.320.721.526.031.236.935.624.423.327.621.727.437.122.826.932.938.336.241.328.429.930.130.824.325.3
Adelaide Airport22.123.026.229.620.320.929.819.419.522.726.935.234.023.822.424.520.226.636.320.926.230.236.031.538.926.430.626.229.522.222.1
Edinburgh RAAF25.523.031.330.021.322.233.020.820.425.830.436.138.823.523.727.021.427.537.522.027.233.338.235.541.026.330.429.730.223.824.1
Kuitpo Forest Reserve20.620.327.326.218.820.727.316.216.921.526.932.331.517.817.623.217.424.032.919.420.228.933.431.836.625.823.726.226.219.621.1
Mount Barker23.822.431.126.020.922.929.420.318.424.926.934.133.320.220.526.019.625.634.123.122.430.135.032.838.425.024.531.529.522.625.1
Mount Crawford AWS22.122.429.425.620.521.027.315.816.923.927.932.933.619.519.524.519.623.133.021.222.928.834.434.237.522.323.529.027.520.422.6
Mount Lofty18.620.026.122.918.518.525.013.415.621.025.030.029.118.017.521.316.821.730.317.221.327.231.431.135.423.821.625.323.816.120.0
Noarlunga20.623.328.628.821.321.729.019.520.522.428.635.932.222.421.924.520.526.835.320.824.429.636.633.438.928.227.827.928.722.223.3
Parafield Airport25.624.932.130.122.323.032.221.121.326.331.136.638.724.424.227.221.827.737.322.627.033.038.436.241.328.130.730.730.725.024.8
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 2016
12345678910111213141516171819202122232425262728293031
Adelaide (Kent Town)11.711.411.418.413.512.812.715.011.69.712.316.120.316.012.510.314.49.617.214.613.115.122.519.116.922.221.122.517.217.918.1
Adelaide Airport10.811.09.817.613.512.712.015.112.28.510.914.521.916.012.39.715.79.016.215.412.914.019.618.014.421.521.422.118.518.018.1
Edinburgh RAAF8.710.18.516.814.412.010.815.012.78.010.413.619.616.112.67.514.88.316.415.411.814.822.116.513.722.821.622.017.017.418.2
Kuitpo Forest Reserve8.49.88.313.710.39.69.311.78.38.29.314.221.012.08.19.910.48.113.010.29.911.117.117.616.916.318.320.015.014.214.3
Mount Barker7.17.96.212.69.69.27.111.39.36.49.011.116.813.08.210.810.96.810.211.59.011.313.314.810.618.018.720.815.314.615.2
Mount Crawford AWS7.69.66.714.99.49.18.510.16.96.07.914.422.811.36.78.59.95.911.610.68.59.816.218.616.917.016.818.611.213.413.6
Mount Lofty7.08.55.513.78.48.69.38.66.15.77.813.622.710.45.57.38.95.210.88.48.19.416.919.116.515.216.218.213.012.411.6
Noarlunga11.411.311.817.212.412.513.314.910.910.512.416.426.514.711.512.214.28.516.314.012.214.419.517.420.718.421.621.618.517.317.5
Parafield Airport9.69.111.415.312.911.110.715.111.79.012.414.221.915.912.67.514.17.317.414.811.214.622.516.116.421.721.322.517.917.818.1
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 2016
12345678910111213141516171819202122232425262728293031
Adelaide (Hope Valley Reservoir) - 0.2 - - 4.0 - - - 1.0 - - - - 0.4 - - - 1.2 - 1.8 - - - - - - 4.8 66.4 1.4 - 0.2
Adelaide (Kent Town) - - - - 4.6 - - 8.0 0.8 - - - - 0.4 - - 0.4 - - 2.2 - - - - - 0.2 5.8 61.2 3.0 0.2 -
Adelaide (Keswick) - - - - 4.8 - - 9.4 0.6 - - - - - - - - - - 0.4 - - - - - 0.6 5.0 55.8 0.8 - -
Adelaide (Morphett Vale)



2.2

12.0 1.8
















2.4 46.0


Adelaide (Salisbury Bowling Club)






8.0


















56.2


Adelaide (Seaton)



5.4

9.2










2.0





7.4 51.0 2.2

Adelaide Airport - - - - 4.4 -
6.6 2.6 - - - - - - - - 0.2 - 0.6 - - - - - 0.8 4.2 50.2 1.0 - -
Ashton - - - 0.4 6.4 - - 14.8 3.8 0.2 - - - 0.6 0.2 - 0.6 0.2 - 2.0 - - - - - 1.0 7.0 82.6 7.8 0.2 0.4
Ashton Co-op - 0.2 - 6.6

























Athelstone (Black Hill) - - - 0.2 5.0 - - 8.8 0.6 - - - - 0.6 - - 0.8 0.2 - 0.4 - - - - - 2.0 4.6 72.4 2.0 - -
Balhannah (Killara Park) - - 0.2 0.2 5.4 - - 17.2 2.0 - - - - 0.2 - - 1.0 - - - - - - - - 0.6 3.2 81.6 4.6 - -
Beaumont - - - 0.2 4.2 - - 10.0 3.2 - - - - 0.2 - - 0.2 - - 1.2 - - - - - 0.4 4.0 56.0 3.2 - -
Belair - - - 0.2 4.0 0.2 - 10.4 3.2 0.2 - - - - - - 0.2 0.2 - - - - - - - 0.4 3.0 32.4 7.6 0.2 0.2
Belair (St Johns) - - - 0.2 4.8 - - 8.6 4.6 - - - - - - - - - - 0.2 - - - - - 1.2 3.8 51.8 4.8 - -
Bellevue Heights - - - - 3.0 - - 5.2 2.6 0.2 - - - - - - 0.4 - - 0.4 - - - - - 0.6 1.8 52.4 0.8 - -
Birdwood (McVittie's Hill) - - - 0.2 6.0 - - 28.6 0.8 - - - - 0.6 - - - - - - - - - - - - 6.6 82.8 7.6 - -
Blackwood (Wittunga)


0.2 4.2

6.4 3.4



0.2

0.6

0.6




1.6 3.4 55.4 2.4 0.2 0.6
Brownhill Creek (Scotch College) - - - - 4.8 - - 8.4 4.4 - - - - - - - 0.2 - - 0.6 - - - - - 0.8 4.0 48.0 3.2 - 0.2
Burnside - - - 0.2 5.0 - - 8.4 1.6 - - - - 0.2 0.2 - - - - 4.4 - - - - - 0.2 5.4 60.6 3.6 - -
Charleston - - - 0.4 4.6 - - 23.2 1.6 - - - - 1.0 0.2 - 0.6 - - - - - - - - 0.4 5.2 77.0 8.8 - 0.2
Crafers West - - - 0.2 5.0 - - 14.6 5.6 - - - - 0.2 - - 1.0 - - 0.6 - - - - - 1.2 4.6 54.8 5.2 0.4 1.0
Cudlee Creek (Millbrook Reservoir) - - - - 6.0 - - 20.0 3.2 - - - - 2.0 0.2 - - 0.4 - - - - - - - - 5.8 92.0 3.6

Cudlee Creek (O'Deas Road) - - - 0.2 5.2 - - 15.2 1.8 - - - - 1.0 0.2 - - 0.2 - 0.2 - - - - - 0.6 7.0 62.0 1.6 - -
Eden Valley (Mt Adam)













- -




-



11.6 3.2 1.4 - -
Edinburgh RAAF - - - 0.2 4.0 - - 8.2 1.0 - - - - 0.4 - - - 0.2 - 0.2 - - - - - - 3.2 70.0 2.4 0.2 -
Felixstow (Payneham) - - - - 3.6 - - 5.0 0.8 0.2 - - - 0.2 0.2 - 0.2 0.2 - 0.4 0.2 - - - - 0.4 5.0 65.6 2.2 - -
Gawler - - - 0.2 1.8 - - 8.8 0.4 - - - - 0.2 - - - - - - - - - - - 0.4 8.2 35.2 0.8 - -
Greenacres - - - - 3.2 - - 5.2 0.6 - - - - 0.4 0.2 - 0.8 0.2 - 0.6 - - - - - 1.6 3.6 59.8 1.8 - -
Hahndorf - 0.2 - - 5.9 - - 18.1 4.1 - - - - 0.3 - - 1.2 - - 0.1 - - - - - 0.9 6.2 77.4 4.7 - 0.4
Happy Valley Reservoir



4.2

7.6 2.6







0.2
0.2




0.4
58.0 2.0

Heathfield Works Depot - - 5.4 - - 17.0 5.0 - - - - - - - - - - - - - - - - 99.8
Ironstone Road - - - 0.6 9.0 - - 25.2 0.8 - - - - 0.6 0.2 - 0.2 - - 0.2 - - - - - 0.2 10.6 70.2 9.8 - -
Kangarilla (Saddlebags) - - - 0.2 2.8 - - 10.4 1.8 - - - - - - - 0.4 - - 0.4 - - - - - 0.8 2.0 66.6 4.0 0.2 1.2
Kersbrook - - - 0.6 6.0 - - 18.2 1.0 - - - - 0.6 - - 0.8 - - - - - - - - 0.2 9.0 67.4 4.6 - -
Kilburn - 0.2 - 0.2 3.2 - - 4.8 0.2 - - - - 0.6 0.2 - 0.2 - - 0.4 - - - - - 1.6 3.2 71.8 2.6 0.2 -
Kuitpo Forest Reserve - - - - 4.2 - - 17.0
- - - - - 0.2 - - 0.2 - 0.4 - - - - - 0.4 1.2 58.6 2.6 - 0.4
Leawood Gardens (Eagle on The Hill) - - - 0.2 5.8 - - 14.4 3.6 - - - - 0.2 - - 0.6 - - 0.4 0.2 - - - - 0.8 4.6 59.2 4.2 - 0.8
Lenswood Research Centre - - 7.6 - - 16.2 2.6 - - - - 0.8 - - 0.2 1.4










Lobethal



5.6 25.5 1.6 1.3 0.1







109

Lobethal - - - 0.2 5.8 - - 22.6 2.0 - - - - 1.0 - - 0.8 - - - - - - - - 1.0 7.2 85.8 8.6 - 0.2
Lobethal (Maidment Road) - 0.2 - 0.2 7.2 - - 23.6 0.8 - - - - 1.2 - - 0.2 - - 0.2 - - - - - 0.8 7.2 75.8 4.4 - 0.2
Long Ridge (Greenhill) - - - 0.2 2.2 - - 6.2 3.8 - - - - 0.2 0.2 - 0.8 - - 1.6 - - - - - 0.6 6.2 49.0 3.0 - 0.2
Mallala





4.8
















52.8

McLaren Vale (Pirramimma Winery) - - - - - - - 13.0 0.8 - - - - - - - - - - 3.0 - - - 42.0 0.6
Melrose Park - - - - 4.2 - - 7.0 2.0 - - - - - - - - - - - - - - - - 1.2 4.0 44.4 1.4 - -
Montacute - - - 0.2 4.4 0.2 - 12.2 3.0 - - - - 0.6 - - - - - 0.2 - - - - - 1.0 4.2 67.2 4.4 - 0.2
Morphettville - - - - 3.2 - - 4.0 - - - - - - - - - - - - - - - - - 0.4 2.6 48.2 0.2 - -
Mount Barker - - - - 4.2 - - 18.0 2.4 - - - - 0.2 - - 0.4 - - 0.2 - - - - - 1.2 3.0 76.0 3.2 - -
Mount Bold Reservoir



3.8

10.6 4.4









0.2




0.4 2.4 66.2 3.4
1.0
Mount Crawford AWS - - - 0.6 7.6 - - 21.8 0.8 - - - - 0.4 0.2 - - 0.2 - 2.2 - - - - - 0.8 10.0 52.6 9.4 - -
Mount Lofty - - - - 7.0 - - 17.6 4.0 - - - - 0.2 0.2 - 0.6 - - 0.6 - - - - - 1.8 9.8 86.0 4.0 - 1.8
Mt Bold (Scott Creek) - 0.2 - 0.2 3.2 - - 8.6 2.6 - - - - - - - 0.6 - - 0.4 - - - - - 1.0 2.2 58.4 4.8 0.2 -
Mylor (Biggs Flat) - - - - 3.6 - - 13.2 2.2 - - - - - - - 0.4 0.2 - 0.2 0.2 - - - - 0.8 4.4 77.0 5.8 0.2 -
Nairne - - - 6.0 - - 18.0 2.0 - - - - 0.4 - - 0.4 - - - - - - - 91.6 0.2 0.2
Noarlunga - - - - 2.0 - - 7.0 1.8 - - - - 0.2 - - - 0.2 - 0.6 - - - - - 1.4 0.8 33.6 0.4 - -
North Adelaide - - 4.6 - - 9.6 1.8 - - - - - - - 1.0 2.2 - - - - - 5.6 57.6 3.4

Owen






6.0










4.0






41.6

Parafield Airport - - - - 2.4 - - 6.8 - - - - - 0.8 - - 0.6 - - 0.4 0.2 - - - - 0.8 3.4 61.2 1.4 - -
Piccadilly (Woodhouse) - - - - - - - 19.8 4.4 - - - - - - - 1.0 - - 0.8 - - - - - - 10.0 102 - 0.8 1.0
Regency Park - - - 0.2 3.6 - - 4.4 0.2 - - - - 0.2 0.2 - 0.2 0.2 - 0.4 - - - - - 0.2 4.6 62.2 1.0 - -
Sellicks Beach



0.6

6.2










2.0




3.4 2.0 28.6


Uraidla



8.4

18.0 4.0









3.0





11.0 110 8.6

Uraidla (Sutton Creek) - - - 0.2 7.8 - - 16.2 3.0 0.2 - - - 0.4 0.2 - - 0.2 - 1.4 - - - - - 1.8 10.8 99.0 6.6 0.2 0.6
Verdun - - - 0.2 6.6 - - 17.8 3.8 - - - - 0.2 - - 0.6 - - 0.4 - - - - - 1.2 5.8 90.8 5.6 - -
Williamstown - - - 0.8 5.2 - - 18.2 - - - - - 0.4 - - - - - 0.2 - - - - - 1.0 11.2 53.2 7.6

Williamstown (South Para Reservoir) - - - - 5.8 - - 16.0 0.6 - - - - 0.4 0.2 - - - - 1.2










Willunga - - - - - - - 19.2 - - - - - - - - - - - 0.6 - - 39.2

Woodside

5.8

17.8 4.2



0.6




1.6










Woodside (Wicks Estate) - - - 0.2 5.6 - - 14.2 3.0 0.2 - - - 0.4 - - - - - 1.2 - - - - - 0.6 5.4 80.0 6.6 - -
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, generally published on the first working day of each month, lists the main features of the weather in 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 statement has been prepared based on information available at 8 am on Tuesday 3 January 2017. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

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
(03) 9669 4057
Enquiries