Adelaide in April 2015: Coolest April days in 19 years

Daytime temperatures across Adelaide were generally below average through April, with the monthly mean maximum temperature of 20.5 °C the city recorded its coolest April days since 1996 ( with 19.7 °C), 19 years ago. There were 17 days at or below 20 °C this April which is the highest number of April days where the maximum temperature has been below 20 °C since 1996 when 21 days of below 20 °C were recorded.

Similarly, April nights were the coolest since 1999 (16 years). The city recorded 15 nights with a minimum of 10 °C or below. There were 18 nights of 10 °C or below in 1999.

The city recorded 57.4 mm of rainfall for the month, with the heaviest falls being recorded at the end of the first week of the month, then again on the 17th and on the 25th. The wet days result in Adelaide having its wettest April since 2009, when a monthly rainfall total of 73.6 mm was recorded.

  • Coolest April days in 19 years (since 1996)
  • Coolest April nights in 16 years (since 1999)
  • Adelaide's wettest April in 6 years
  • Above average rainfall for most locations

Further information

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Extremes in April 2015
Hottest day 32.2 °C at Parafield Airport on the 1st
Warmest days on average 20.9 °C at Parafield Airport
Coolest days on average 14.6 °C at Mount Lofty
Coldest day 9.9 °C at Mount Lofty on the 25th
Coldest night 2.5 °C at Mount Lofty on the 20th
Coolest nights on average 7.8 °C at Mount Lofty
Warmest nights on average 11.7 °C at Noarlunga
Warmest night 19.3 °C at Noarlunga on the 1st
Warmest on average overall 15.8 °C at Adelaide (Kent Town)
Coolest on average overall 11.2 °C at Mount Lofty
Wettest overall 137.0 mm at Kangarilla (Saddlebags)
Wettest day 46.0 mm at Kuitpo Forest Reserve on the 7th
Strongest wind gust 80 km/h at Edinburgh RAAF on the 6th




Summary statistics for April 2015
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
April
2015
Diff
from
average
Highest for
April
2015
Mean for
April
2015
Diff
from
average
Lowest for
April
2015
Total for
April
2015
Average
for
April
Rank of
April
2015
Fraction of
April
average
Adelaide (Kent Town) 20.5 -2.2 30.4 1st 11.1 -1.4 6.0 20th 57.4 40.3 high 142%
Adelaide Airport 20.1 -2.1 29.3 1st 11.0 -0.8 6.6 20th 50.0 35.3 high 142%
Edinburgh RAAF 20.6 -2.4 30.6 14th 10.3 -1.4 4.1 20th 54.6 31.5 high 173%
Kuitpo Forest Reserve 16.7 -3.0 29.0 1st 9.5 -1.7 4.9 20th 125.0 60.2 high 208%
Mount Barker 18.5 -2.0 29.6 1st 8.3 0.0 3.0 20th 90.0 58.4 high 154%
Mount Crawford (Mt Crawford AWS) 16.5 -2.7 28.1 1st 8.6 -1.9 3.4 20th 66.4 45.1 high 147%
Mount Lofty 14.6 -1.0 25.0 1st 7.8 -1.9 2.5 20th 128.6
Noarlunga 19.6 -2.8 28.6 1st 11.7 -2.0 5.9 20th 55.8 33.9 high 165%
Parafield Airport 20.9 -1.8 32.2 1st 10.0 -1.8 3.3 20th 57.0 39.4 high 145%

Daily maximum temperatures for April 2015
123456789101112131415161718192021222324252627282930
Adelaide (Kent Town)30.421.223.024.322.016.216.719.918.421.425.624.027.029.723.619.016.919.216.616.918.521.220.016.616.417.017.616.717.721.9
Adelaide Airport29.321.623.421.920.916.317.519.318.719.523.324.125.529.222.118.516.919.317.617.518.520.518.417.116.817.117.416.717.219.8
Edinburgh RAAF30.622.123.424.921.716.117.519.419.222.225.025.127.730.623.219.117.020.116.516.818.519.219.117.317.217.417.517.317.420.2
Kuitpo Forest Reserve29.016.417.322.316.112.912.816.914.218.422.518.423.026.820.414.012.815.012.813.214.515.315.913.213.113.814.713.614.516.8
Mount Barker29.618.219.124.217.315.614.618.119.325.022.026.528.523.614.914.518.314.214.516.117.216.513.715.015.116.714.816.118.1
Mount Crawford (Mt Crawford AWS)28.117.018.722.617.712.811.916.715.018.822.519.724.227.020.214.312.214.111.412.113.916.616.211.712.012.613.712.812.216.3
Mount Lofty25.014.917.120.015.010.710.314.313.317.419.917.521.123.418.112.710.612.110.310.712.314.514.310.29.910.711.811.912.515.3
Noarlunga28.620.221.322.720.415.616.719.417.822.423.322.725.128.021.817.315.818.616.316.517.718.819.915.915.817.017.416.817.320.4
Parafield Airport32.222.423.625.222.516.618.320.119.821.825.225.027.730.023.519.316.920.117.417.218.519.719.317.217.417.917.517.017.4
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 2015
123456789101112131415161718192021222324252627282930
Adelaide (Kent Town)17.213.312.19.814.011.69.79.98.98.88.913.915.015.713.915.213.112.78.16.09.08.110.313.08.58.010.68.78.59.0
Adelaide Airport17.713.211.29.014.211.68.510.610.57.99.213.412.915.813.314.813.313.67.96.68.28.610.213.68.78.111.37.98.68.5
Edinburgh RAAF18.113.511.68.612.310.29.78.57.47.69.112.516.114.312.912.713.211.46.24.18.86.69.111.58.66.211.46.811.37.2
Kuitpo Forest Reserve16.310.16.88.810.99.36.98.69.88.510.112.312.915.514.512.59.610.06.94.97.57.210.110.86.08.08.97.86.37.2
Mount Barker14.89.64.65.08.57.67.68.110.45.79.29.612.213.112.110.010.36.03.07.05.110.111.07.08.48.97.25.05.0
Mount Crawford (Mt Crawford AWS)16.68.15.58.49.58.55.87.58.06.810.511.712.515.513.311.19.19.56.03.45.56.39.69.95.37.38.06.96.46.7
Mount Lofty16.86.84.26.79.07.15.06.87.56.79.310.711.516.212.810.58.58.54.62.54.75.08.09.44.96.46.96.24.75.7
Noarlunga19.312.710.512.013.811.810.510.712.310.510.915.816.315.915.414.312.512.88.75.98.28.811.813.78.69.311.29.88.99.2
Parafield Airport14.613.012.08.913.810.79.28.66.39.07.713.714.113.112.013.313.212.25.83.39.36.28.612.08.15.611.06.68.88.8
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 2015
123456789101112131415161718192021222324252627282930
Adelaide (Brighton) - 0.8 - - - 25.6 12.2 - - - - - - - - - 14.4 0.4 4.2 - - - - 1.6 13.2 1.0 0.4 1.6 - -
Adelaide (Hope Valley Reservoir) - - - - - 11.6 17.4 0.4 - - - - - - - 1.4 14.0 0.6 6.2 0.4 - - - - 19.2 1.2



Adelaide (Kent Town) - 0.8 - - - 11.8 12.8 - - - - - - - - - 11.0 0.2 4.8 0.4 - - - 1.6 13.0 1.0 - - - -
Adelaide (Keswick) - 1.0 - - - 13.0 11.6 - - - - - - - - - 11.0 - 3.4 0.4 - - - 1.8 13.2 0.4 0.6 - - -
Adelaide (Morphett Vale)




15.0 11.0







16.0 2.0 4.0




27.0




Adelaide (Salisbury Bowling Club)




25.0







2.6 11.0












Adelaide (Seaton)




11.4









13.4






9.2




Adelaide Airport - 0.4 - - - 13.6 11.6 - - - - - - - - - 11.0 0.2 3.2 - - - - 1.0 8.6 0.4 - - - -
Ashton - 1.8 - - - 16.4 23.6 1.2 0.2 - - - - - - 0.6 16.0 1.6 10.0 0.6 - - - 3.6 32.0 4.0 0.2 0.2 0.2 -
Ashton Co-op - 1.6 - - - - 40.4 1.0 - - - 0.2 - 0.2 0.4













Athelstone (Black Hill) - 0.8 - - - 12.8 19.0 - - - - - - - - 3.2 10.6 0.8 4.2 0.2 - - - 0.2 18.8 3.6 - - - -
Balhannah (Killara Park) - 2.0 - - - 12.0 21.6 0.2 0.8 0.2 - 0.2 - - - - 14.2 1.6 4.6 1.8 - - - 0.6 17.4 3.6 0.4 0.6 0.2 -
Beaumont - 1.2 - - - 19.4 22.2 - 0.2 - - - - - - - 10.4 0.6 2.6 0.4 - - - 1.4 18.6 1.4 0.4 - - -
Belair - 1.6 - - - 26.2 31.8 0.2 0.2 - - - - - - - 11.6 0.8 8.6 0.2 - - - 3.8 28.0 2.2 0.4 - - -
Belair (St Johns) - 1.6 - - - 28.2 18.8 - - 0.2 - - - - - - 13.8 1.0 6.2 0.4 - - - 2.4 23.8 2.0 0.8 - - -
Bellevue Heights - 0.8 -






- - - - - 0.6 13.2 0.4 4.6 -









Birdwood (McVitties Hill) - 0.2 - - - 10.4 21.4 0.8 - 0.2 - 0.2 - - - 1.4 14.6 0.8 8.2 0.4 - 0.2 - 0.6 12.6 3.4 0.2 2.0 - 0.2
Blackwood (Wittunga)
2.0


23.4 17.2
0.2






13.0 0.6 5.6 0.6


3.6 21.6 1.8 0.4


Brownhill Creek (Scotch College) - 1.4 - - - 25.2 18.0 - - - - - - - - - 11.0 1.6 3.4 0.4 - - - 2.4 19.8 2.2 0.2 - - -
Burnside - 1.0 - - - 15.4 21.2 - - - - - - - - - 9.6 0.4 3.0 0.2 - - - 1.6 15.6 1.4 0.2 - - -
Charleston - 0.4 0.2 - - 8.8 25.0 0.6 0.2 - - - - - - 3.4 14.4 0.4 8.8 0.8 - - - 0.4 15.0 4.0 - 0.6 0.2 -
Crafers (Mt Lofty) - 4.0 - - - 24.6 34.6 1.0 0.6 - - - - - - - 17.4 3.8 9.8 1.0 - - -






Crafers West - 2.4 0.2 - - 22.2 32.4 0.6 0.4 - - - - - - - 14.2 2.0 10.2 0.4 - - - 3.0 28.6 6.2 0.2 0.6 0.2 -
Cudlee Creek (Millbrook Reservoir) - - - - - 11.4 15.8 0.6 - - - - - - 0.2 1.8 15.0 0.8 8.8 0.6 - - - - 16.2 2.4 - 0.4

Cudlee Creek (O'Deas Road) - 0.2 - - - 11.6 18.6 0.2 0.2 - - - - - - 2.4 16.6 0.8 7.8 0.2 - - - 0.2 12.0 2.4 0.2 0.6 - -
Dry Creek (Wingfield) - - - - - 16.6 9.6 - - - - - - - - 2.2 10.0 - 3.4 0.2 - - - - 8.0 0.2 - - - -
Echunga - 1.8 0.2 - - 12.4 31.2 0.8 0.2 - 0.2 - - - - - 16.4 0.8 7.0 0.4 - - - 1.8 24.2 7.8 0.2 0.6 0.2 -
Eden Valley (Mt Adam) - - - - - 10.8 25.8 0.8 - 0.2 - - - 0.4 - 0.2 21.6 4.4 6.6 0.6 - 0.2 - 0.2 16.8 3.4 - 1.4 0.2 -
Edinburgh RAAF - - - - - 14.2 15.8 - - - - - - - - 1.4 12.2 0.6 3.0 0.2 - - - - 7.2 - - - - -
Gawler - - - - - 8.8 9.4 - - - - - - - - - 9.8 0.2 1.6 - - - - - 8.4 1.2 0.2 - - -
Gawler Council Depot























13.2


Greenacres - 0.2 0.2 - - 10.2 12.2 - - - - - - - - 1.6 9.4 0.2 5.0 0.2 - - - 0.2 9.0 0.6 - 0.2 - -
Hahndorf - 2.0 - - - 15.4 25.4 0.5 0.2 0.1 - - - - - - 13.0 1.1 5.5 1.8 - - - 1.0 24.2 5.6 0.4 0.4 - -
Happy Valley Reservoir
1.0


14.6 15.8 0.2 0.2






13.8 0.8 8.6



2.4 25.8 2.0 1.0 0.4

Heathfield Works Depot - - - - - 56.0 - - - - - - - - - 28.2





Ironstone Road - 0.4 - - - 8.4 17.8 0.2 - - 0.2 - - - - 0.6 16.0 1.2 6.8 0.4 - - - 0.8 15.6 1.6 0.2 0.6 - -
Kangarilla (Saddlebags) - 3.2 - - - 19.0 45.4 0.4 1.0 - - - - - - - 15.6 0.6 9.4 - - - 0.2 3.4 34.2 3.4 0.2 0.8 0.2 -
Kersbrook - 0.2 - - - 10.0 12.6 - - - - - - - - 1.0 14.4 0.6 6.0 0.2 - - - 0.8 15.2 1.2 - 0.2 - -
Kilburn - - - - - 13.2 11.6 - - - - - - - - 2.2 9.6 0.4 4.4 - - - - 0.4 10.4 0.4 - - - -
Kuitpo Forest Reserve - 3.6 0.2 - - 12.2 46.0 0.8 1.4 0.2 - - - - - - 17.2 1.2 7.0 0.2 - - - 4.2 26.6 3.2 0.2 0.6 - 0.2
Leawood Gardens (Eagle on The Hill) - 2.8 - - - 29.0 31.0 0.2 0.2 - - - - - - - 12.6 1.6 4.8 0.4 - - - 3.6 26.0 2.4 0.4 0.2 - -
Lenswood Research Centre - 1.6 34.8 0.6 - - - - - - - 1.0 16.2 12.8 - - - 36.6 0.8

Lobethal
1.4 34.8 0.4 0.4





21.0 13.4


1.0 22.1


Lobethal - 1.0 - - - 10.6 23.6 0.2 0.4 - - - - - - 3.6 17.0 1.2 10.8 1.2 - - - 0.8 22.2 3.0 0.2 1.0 - -
Lobethal (Maidment Road) - 0.2 - - - 11.6 26.2 0.6 - - 0.2 - - - - 3.6 17.2 1.2 11.6 0.6 - - - 1.0 13.8 3.8 0.2 0.8 - 0.2
Long Ridge (Greenhill) - 2.4 - - - 16.4 31.0 - 0.2 - - - - - - - 11.4 0.8 4.6 0.6 - - - 0.8 19.6 2.4 0.2 - - -
Mallala


49.0








10.0 7.0









McLaren Vale (Pirramimma Winery) - 1.2 25.4 0.4 0.2 - - - - - 0.2 - 14.8 7.4 - - - 0.4 23.4 1.6

Melrose Park - 0.8 0.2 - - 29.8 14.0 - - - - - - - - - 11.8 1.6 4.0 0.2 - - - 1.4 14.0 1.0 - 0.2 - -
Mitchell Park (Marion) - 1.0 - - - 22.4 13.2 - - - - - - - - - 11.8 - 3.0 - - - - 2.0 10.2 1.0 0.6 - - -
Montacute - 0.8 - - - 14.6 16.4 0.2 - - - - - - - 3.8 13.6 0.6 6.2 0.4 - - - - 21.2 2.8 - - - -
Morphettville - 0.6 - - - 15.6 11.8 - - - - - - - - - 9.6 0.4 3.4 - 0.2 - - 0.6 8.8 0.2 0.2 - - -
Mount Barker - 2.2 - - - 11.0 22.8 0.6 0.2 0.2 - - 0.2 - - 14.4 1.4 6.0 1.8 - - - 1.2 21.2 6.0 - 0.8 - -
Mount Bold Reservoir
2.8


14.8 35.8 0.4 0.6






13.6 0.8 7.4 0.4


1.0 37.2 2.4 0.8 0.4

Mount Crawford (Mt Crawford AWS) - 0.2 - - - 10.0 15.4 0.4 - 0.2 - - - - -
16.8 1.2 5.4 0.2 - 0.2 - 0.8 13.6 1.2 0.2 0.6 - -
Mount Lofty - 3.6 - 0.2 - 22.0 28.6 0.8 0.4 - - - - - - - 13.8 3.0 9.0 1.0 - - - 3.4 30.6 10.2 0.6 1.2 0.2 -
Mt Bold (Scott Creek) - 1.4 - - - 9.2 34.4 - 0.4 - - - - - - - 13.0 0.2 4.8 0.6 - - - 2.8 36.4 3.4 0.4 0.2 - -
Mylor (Biggs Flat) - 1.6 - - - 10.8 24.0 0.6 - - - - - - - - 12.2 0.2 7.0 0.2 - - - 1.4 28.4 4.4 0.2 0.6 - 0.2
Nairne - 1.8 38.4 0.8 - - - 0.2 - - - 16.6 9.2 - - - 0.6 18.0 1.4

Noarlunga - 1.8 - - - 10.2 7.6 - - - - - - - - - 13.8 1.2 4.6 - - - - 1.2 13.0 1.0 0.6 0.8 - -
North Adelaide - 0.8 - - - 23.0 - - - - - - - - - 10.6 4.2 - - - - 12.0


Owen















14.6 9.4









Parafield Airport - - - - - 19.2 10.4 -
- - - - - - 2.8 10.0 0.4 4.0 - - - - 0.6 8.8 0.6 0.2 - - -
Piccadilly (Woodhouse) - - - - - 25.0 26.0 1.5 - - - - - - - - 15.0 - 13.4 - - - - 2.0 36.0 6.0 0.8 1.0

Regency Park - - - - - 11.4 7.2 - - - - - - - - 0.2 10.4 0.2 3.2 - - - - 1.2 6.2 0.6 - - - -
Sellicks Beach
0.6


23.0 8.6








12.0 2.4 2.2




12.8 2.4
1.6

Uraidla
3.0


22.0 25.6 1.8







17.0 2.2 10.4 1.2


4.0 34.2 5.4
1.0

Uraidla (Sutton Creek) - 2.6 - - - 22.0 21.6 1.2 0.2 - - - - - 0.2 - 14.8 2.0 10.4 0.8 - - - 3.6 35.2 4.8 0.4 0.6 - -
Verdun - - - - - 11.4 24.2 0.4 0.2 - - - - - - - 11.4 1.0 8.8 1.4 - - - 1.0 26.6 4.8 - 0.4 - -
Williamstown




10.8 0.2







0.4 17.8 0.4 4.2 0.2


0.6 15.0 0.6
0.4

Williamstown (South Para Reservoir)




9.0 11.2 0.2






1.0 16.6 0.6 5.0 0.2


0.2 16.2 0.4
0.2

Willunga - 3.0 - - - - 36.0 - 0.4 - - - - - - - 12.6 6.2









Woodside
0.8
35.0 0.6







17.8 9.4



30.2 1.4

Woodside (Wicks Estate) - 1.0 - - - 12.0 19.0 - 0.2 - - - - - - 1.4 16.0 0.8 6.2 1.8 - - - 0.8 16.6 2.6 0.2 1.2 0.2 0.2
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

A Monthly Climate Summary is prepared to list 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, usually published in the fourth week of the month.

A Climate Summary is generally published on the first working day of each month.

This statement has been prepared based on information available at 10 am on Friday 1 May 2015. 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
Enquiries