Adelaide in April 2016: Rainfall below average; warm days

Rainfall during April was well below average, with just 6 days of any measurable rainfall. Maximum temperatures were well above average, nights were also warmer than normal.

  • Driest April since 2005
  • Warmest April days since 2005
  • 29 days of at least 20°C, highest since 1923

Rainfall was very much below average at all locations in the metropolitan area, with some locations having their driest April in several years. Adelaide (Kent Town) had its driest April since 2005, with only 6 days totalling 9.6 mm, almost half of which was observed in the 24 hours to 9 am on the 6th, well below the average of 40.3 mm, and the 57.4 mm recorded in April 2015. Only light rainfall totals were recorded across the city and hills region during the last 3 weeks of the month.

Maximum temperatures were well above average across the city. The mean maximum temperature at Adelaide (Kent Town) was 2.2 °C above the long-term April average, the warmest since 2005. Minimum temperatures were also above average for the month, across most of the region, though cooler than normal nights were recorded in the northern suburbs.

The first week of April saw much warmer than average daily maximum temperatures recorded at all metropolitan locations. Days became milder between the 6th and 13th, before warming up again from the 14th. Adelaide (Kent Town) recorded 30.1 °C on the 19th, and on the 26th; the latest in April that such a daily maximum has been recorded since 2005. The city also had 29 days this month where the maximum temperature reached at least 20°C. The last time this happened was in 1923 when there were 30 days of 20°C or more.

There were warmer than usual overnight temperatures recorded in the first week of April but minimum temperatures were generally cooler than normal throughout the middle of the month. However, during the last week of April, fresh northerly winds ahead of a trough of low pressure resulted in minimum temperatures that were in excess of 6 °C average.

Further information

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Extremes in April 2016
Hottest day 30.9 °C at Parafield Airport on the 26th
Warmest days on average 25.1 °C at Parafield Airport
Coolest days on average 18.9 °C at Mount Lofty
Coldest day 13.6 °C at Mount Lofty on the 22nd
Coldest night 3.8 °C at Mount Barker on the 18th
Coolest nights on average 9.9 °C at Mount Barker
Warmest nights on average 13.9 °C at Noarlunga
Warmest night 22.5 °C at Noarlunga on the 27th
Warmest on average overall 18.7 °C at Adelaide (Kent Town)
Coolest on average overall 14.8 °C at Mount Lofty
Wettest overall 20.4 mm at Heathfield Works Depot
Wettest day 9.4 mm at Lenswood Research Centre on the 29th
Strongest wind gust 76 km/h at Adelaide Airport on the 30th
76 km/h at Mount Crawford AWS on the 30th




Summary statistics for April 2016
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
April
2016
Diff
from
average
Highest for
April
2016
Mean for
April
2016
Diff
from
average
Lowest for
April
2016
Total for
April
2016
Average
for
April
Rank of
April
2016
Fraction of
April
average
Adelaide (Kent Town) 24.8 +2.2 30.1 26th 12.6 +0.2 7.8 18th 9.6 39.6 low 24%
Adelaide Airport 23.8 +1.6 28.8 26th 12.6 +0.8 6.8 18th 7.4 34.8 low 21%
Edinburgh RAAF 25.0 +2.0 30.8 20th 11.6 -0.1 5.7 18th 8.0 31.0 low 26%
Kuitpo Forest Reserve 21.1 +1.6 27.3 20th 12.0 +0.9 8.5 7th 20.0 58.1 low 34%
Mount Barker 23.0 +2.6 28.5 26th 9.9 +1.6 3.8 18th 15.8 58.1 low 27%
Mount Crawford AWS 21.1 +2.1 26.8 19th 11.6 +1.2 6.1 23rd 13.0 43.6 low 30%
Mount Lofty 18.9 +3.3 24.4 26th 10.7 +1.0 5.7 17th 18.4
Noarlunga 23.3 +1.1 28.8 19th 13.9 +0.3 9.4 7th 9.8 32.4 low 30%
Parafield Airport 25.1 +2.4 30.9 26th 11.1 -0.7 5.2 23rd 7.8 38.9 v low 20%

Daily maximum temperatures for April 2016
123456789101112131415161718192021222324252627282930
Adelaide (Kent Town)28.723.823.327.628.220.119.920.522.422.622.624.024.127.029.121.421.625.630.129.723.520.220.325.328.130.127.626.924.226.3
Adelaide Airport27.823.022.027.025.720.319.020.720.822.321.621.821.526.226.721.621.823.728.228.522.519.920.422.927.528.826.825.023.526.2
Edinburgh RAAF30.123.422.727.228.520.118.921.322.123.222.122.223.825.829.323.021.925.929.930.823.519.721.025.928.330.629.426.924.227.6
Kuitpo Forest Reserve25.320.218.824.323.316.717.217.519.419.120.119.619.825.316.416.023.126.827.318.615.616.021.924.927.025.422.419.722.8
Mount Barker27.319.527.226.418.618.020.322.121.321.620.821.225.328.520.418.024.328.327.220.417.317.923.827.128.527.422.821.025.0
Mount Crawford AWS25.321.217.624.625.416.615.718.518.819.419.819.919.722.425.617.916.722.026.826.318.514.615.921.225.326.325.023.319.723.1
Mount Lofty22.318.117.421.423.514.314.414.416.216.218.118.118.720.822.615.115.319.724.023.917.313.614.220.522.324.422.122.216.920.1
Noarlunga27.021.921.926.024.719.519.119.821.121.421.422.623.325.926.520.019.723.128.828.422.419.519.622.227.128.426.524.722.325.1
Parafield Airport29.623.722.727.520.919.822.122.124.023.023.123.925.929.123.122.326.229.729.723.820.621.325.928.230.929.327.923.827.1
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 April 2016
123456789101112131415161718192021222324252627282930
Adelaide (Kent Town)13.915.911.610.514.513.58.88.710.413.015.011.010.411.611.911.911.97.812.018.216.012.79.110.39.112.819.916.416.512.4
Adelaide Airport14.917.211.89.514.414.08.48.811.113.815.810.99.410.913.013.612.06.811.615.515.512.99.59.18.511.819.816.516.913.0
Edinburgh RAAF14.514.812.38.415.313.67.78.09.011.615.58.98.611.111.010.210.35.712.117.115.29.36.66.09.113.218.315.616.411.7
Kuitpo Forest Reserve12.814.29.79.315.110.98.58.810.012.911.911.010.310.913.712.68.69.012.718.714.511.38.910.311.814.618.112.914.212.8
Mount Barker11.013.36.85.112.011.75.85.06.611.510.310.09.76.98.911.78.53.88.812.914.411.28.27.58.611.516.312.714.511.2
Mount Crawford AWS12.613.57.78.014.99.87.78.411.111.811.39.78.910.515.911.17.18.414.118.513.69.66.18.511.917.519.413.313.312.7
Mount Lofty11.512.46.57.314.48.86.87.810.111.210.69.38.69.414.710.35.77.413.216.912.59.16.17.612.315.618.612.112.511.1
Noarlunga14.216.010.512.917.513.59.411.012.415.715.111.813.013.515.013.010.910.714.819.316.312.310.712.811.115.722.515.116.615.0
Parafield Airport14.612.811.08.814.913.66.67.18.211.313.88.27.911.211.110.211.45.511.216.114.57.75.28.17.110.720.115.316.711.2
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 April 2016
123456789101112131415161718192021222324252627282930
Adelaide (Brighton) - - - - - 4.4 - - - - 0.4 - - - - - - - - - 1.0 0.4 0.2 - - - - 1.4 3.4 -
Adelaide (Hope Valley Reservoir) - - - - - 6.0 - - - - 0.4 - - - - - - - - - 0.4 - - - - - - - 5.2 -
Adelaide (Kent Town) - - - - - 4.6 0.2 - - - 0.4 - - - - - - - - - 0.2 0.2 - - - - - - 4.0 -
Adelaide (Keswick) - - - - - 5.4 - - - - 0.2 - - - - - - - - - 0.2 - - - - - - - 3.2 -
Adelaide (Morphett Vale)




5.0





















4.0
Adelaide (Salisbury Bowling Club)




4.0























Adelaide (Seaton)




4.8























Adelaide Airport - - - - - 4.0 0.2 - - - - - - - - - - - - - 0.4 - - - - - - - 2.8 -
Ashton - - - - - 6.6 0.2 - 0.2 0.8 0.4 0.2 - 0.2 - - 0.2 0.2 - - 0.2 0.6 0.2 - - - - 0.2 8.6 0.4
Ashton Co-op - - - - - 6.2 - - - 1.4 - - - - - 0.6 - - 0.6 1.0 0.2






Athelstone (Black Hill) - - - - - 6.0 - - - 0.2 - - - - - - - - - - - 0.2 - - - - - - 6.0 -
Balhannah (Killara Park) - - - - - 6.2 0.2 - - 0.2 0.6 - - - 0.2 - 1.6 0.2 - - - 0.8 - - - - - - 5.8 -
Beaumont - - - - - 4.6 - - - 1.0 - - - - - - - - - - 0.6 - - - - - - - 4.0 0.2
Belair - - - - - 5.8 0.2 - - - 0.4 - - - - - 0.4 - - - 0.2 0.4 - - - - - 0.2 4.0 -
Belair (St Johns) - - - - - 6.0 - - - 0.2 0.8 - - - - - - - - - - 0.6 - - - - - - 3.6 -
Bellevue Heights - - - - - 4.0 - 0.2 - - 0.8 - - - - - - - - - 0.4 0.2 - - - - - 0.8 3.2 -
Birdwood (McVittie's Hill) - - - - - 3.8 0.2 - - - 0.2 - - - 0.2 - - - - - 1.4 0.4 - - - - - 0.8 4.6 -
Blackwood (Wittunga)




5.2



1.0



0.2



0.5 0.4




0.6 4.2 0.2
Brownhill Creek (Scotch College) - - - - - 5.2 - - - 0.4 0.4 - - - - - - - 0.2 - 0.2 0.2 - - - - - 0.2 3.6 0.2
Burnside - - - - - 4.6 0.4 - - 0.4 0.2 - - - - - - - - - 0.2 - - - - - - - 5.4 -
Charleston - - - - - 4.2 0.2 - - - 0.4 - - - - - - - - - 0.4 0.4 - - - - - - 5.0 0.2
Crafers (Mt Lofty) - - - - - 7.0 0.2 - 0.2 0.2 0.6 0.2 - 0.2 - - 1.0 - - - 0.2 0.8 0.2 - - - - 0.2 6.6 0.2
Crafers West - - - - - 7.4 - - - 0.2 1.0 0.2 - - - - 0.4 - - - 0.4 0.6 - - - - - - 5.2 0.2
Cudlee Creek (Millbrook Reservoir) - - - - - 4.8 0.2 - - - 0.8 - - - - - - - - - 0.4 - - - - - - 0.2 7.0 -
Cudlee Creek (O'Deas Road) - - - - - 3.8 - - - 0.2 0.2 - - - - - - - - - 0.2 - - - - - - 0.2 6.0 -
Eden Valley (Mt Adam) - - - - - 6.6 - - - - 0.2 - 0.2 - - - - - - - 3.4 0.2 - 0.2 - - - 1.2 6.8 -
Edinburgh RAAF -
- - - 4.0 0.2 - - - - - - - - - -
- - - - - - - - - - 3.8 -
Felixstow (Payneham) - - - - - 4.8 0.2 - - - - - - - - - - - - - - - - - - - - - 4.2 -
Gawler - - - - - 3.4 0.2 - - - - - - - - - - - - - 0.8 - - - - - - - 3.4 -
Gawler Council Depot




5.4













1.0





0.2 3.6
Greenacres - 0.2 - - - 5.0 0.2 - - - - - 0.2 - - - - - - - 0.2 - - - - - - - 4.4 -
Hahndorf - - - - - 6.7 - - - 0.2 0.3 - - - - - - 0.1 - - 0.4 1.1 - - - - - 0.3 8.6 0.1
Happy Valley Reservoir




4.0



0.8








0.8 0.4




0.6 5.6 0.2
Heathfield Works Depot - - - - - 8.2 - - 2.0 - - - - 1.6 - 2.2 - - - - - - 6.4
Ironstone Road - - - - - 5.8 0.2 - - - 0.2 - - - - - - - - - 1.6 0.2 - - - - - 1.0 6.0 0.2
Kangarilla (Saddlebags) - - - - - 5.0 0.2 - - 0.2 1.0 - - 0.2 - - 0.8 0.2 - - 1.0 1.8 - - - - - 1.6 6.4 0.2
Kersbrook - - - - - 3.6 - 0.2 - - - - - - - - - - - - 0.8 - - - - - - 0.2 5.8 0.4
Kilburn - 0.2 - - - 4.2 0.2 - - - - - - - - - - - - - 0.2 - - - - - - - 3.6 0.2
Kuitpo Forest Reserve - - -
- 6.2 0.2 - 0.2 0.2 0.4 - 0.4 -
0.2 0.6 - 0.2 - 1.4 1.0 - - - - - 2.0 7.0 -
Leawood Gardens (Eagle on The Hill) - - - - - 6.4 - - - 0.4 0.6 - - - - - - - - - 0.4 0.2 - - - - - - 5.6 0.2
Lenswood Research Centre - - - - - 5.8 - - 0.8 - - - - 0.4 - - - 2.0 - - - - - - 9.4
Lobethal 5.0 0.6 0.3 0.5 0.3 7.3
Lobethal - - - - - 4.6 0.2 - - 0.2 0.2 0.2 - - - - 0.2 - - - 0.2 0.8 - 0.2 - - - - 7.2 0.2
Lobethal (Maidment Road) - - - - - 5.0 - - - 0.4 0.4 - - 0.4 - - 0.4 - - - 0.6 0.8 - - - - - 0.6 9.2 0.2
Long Ridge (Greenhill) - 0.2 - - - 5.6 - - - 0.4 0.2 - - - - - - - - - 0.2 - - - - - - 0.2 3.2 -
Mallala




9.0





















2.6
McLaren Vale (Pirramimma Winery) - - - - - 4.4 - - 0.6 - - - - - - - - - 1.0 0.4 - - - - - 0.2 4.2
Melrose Park - - - - - 4.8 - - - 0.6 0.2 - - - - - - - - - 0.2 - - - - - - 0.2 3.0 0.2
Mitchell Park (Marion) - - - - - 3.4 - - - - 0.2 - - - - - - - - - 0.4 - - - - - - 0.6 2.4 -
Montacute - - - - - 6.0 - - - 0.6 0.4 - - - - - - - - - - - - - - - - - 6.2 -
Morphettville - - - - - 3.6 0.2 - - - 0.2 - - - - - - - - - 0.4 - - - - - - 0.2 2.6 -
Mount Barker - - - - - 6.2 0.2 - - 0.2 0.4 - - - - - 1.4 0.2 - - 1.0 1.0 - - - - - 0.2 5.0 -
Mount Bold Reservoir




4.8



0.8




0.4


1.0 1.0




0.8 6.4 0.4
Mount Crawford AWS - - - - - 6.4 0.2 - - - 0.2 - 0.2 - - - - - - - 1.2 - 0.2 - - - - 0.4 4.2 -
Mount Lofty - - - - - 7.0 - 0.2 - 0.4 0.8 0.2 - 0.2 - - 1.2 - - - 0.2 0.8 0.2 0.2 - - - 0.2 6.6 0.2
Mt Bold (Scott Creek) - - - - - 5.0 0.2 - - - 0.4 - - - - - 0.2 - - - 0.4 0.8 - - - - - 1.0 5.6 0.2
Mylor (Biggs Flat) - - - - - 6.4 - - - 0.2 0.2 - - - - - 0.4 - 0.2 - 0.2 0.4 - - - - - - 5.8 0.2
Nairne - - - - - 5.6 - - - 0.4 - - - - - 0.4 - - 0.4 1.2 - - - - - - 3.6
Noarlunga - - - - - 4.4 - - - - 0.2 - - - - - 0.6 - - - 0.8 0.4 - - - - - - 3.4 -
North Adelaide - - - - - 5.4 - - 0.4 - - - - - - - - - 0.4 - - - - - - - 3.6
Owen




7.2





















2.3
Parafield Airport - - - - - 3.4 0.2 - - - - - - - - - - - - - 0.4 - - - - - - - 3.8 -
Piccadilly (Woodhouse) - - - - - 6.0 - - - - - - - - - - - - 0.8 - 3.2 - - - - - - - - 0.2
Regency Park - - - - - 4.2 - - - - - - - - - 0.4 - - - - 0.2 - - - - - - - 3.4 -
Sellicks Beach




4.2













0.8





0.6 2.4
Uraidla




6.8














2.6





9.0
Uraidla (Sutton Creek) - - - - - 6.2 - - - - 0.4 - - 0.2 - - 0.8 0.2 - - 0.4 1.4 - - - - - - 9.2 0.2
Verdun - - - - - 6.4 - - - 0.4 0.4 - - - - - 0.4 0.2 - - 0.2 1.0 - - - - - - 8.6 -
Williamstown




5.2 0.4



















0.4 4.0 0.6
Williamstown (South Para Reservoir)




5.8 0.4


0.2








1.4





0.4 4.2 0.4
Willunga - - - - - 5.4 - - 0.8 - - - - - - - - - 1.6 - - - - - - 5.0
Woodside




5.2

0.4








0.1






7.0
Woodside (Wicks Estate) - - - - - 5.2 - - - 0.4 - 0.2 - - - - 0.2 0.2 - - - 0.2 0.2 - - - - - 6.8 -
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 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. Later information, including data that has had greater opportunity for quality control, will be presented in the Monthly Weather Review.

A climate summary is generally published on the first working day of each month.

This statement has been prepared based on information available at 8 am on Monday 2 May 2016. 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.

The ACORN-SAT dataset is used for temperature area averages.

Further information

Media
(03) 9669 4057
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