Sydney in April 2016: Warmest April day on record

April was a very warm month for Sydney with locations in both coastal and western regions recording their warmest April day on record. Many areas recorded the warmest maximum and minimum temperatures for at least 20 years, with Sydney Observatory Hill temperatures ranking in the top five warmest on record. It was mostly dry across the metropolitan region with the exception of some coastal fringes which recorded above average rainfall.

  • Warmest April day on record for several locations
  • Fifth-warmest maximum temperatures
  • Equal-warmest minimum temperatures
  • Equal-second-warmest mean temperatures
  • Heavy rain day at the start of the month, dry and mostly sunny overall

Sydney Observatory Hill recorded its fifth-warmest maximum temperature on record for April 2016. Average maximum temperatures were 2.3°C above the historical average. Temperatures have been persistently warm, not dropping below 20°C since January 2016. Stations across both eastern and western Sydney set new daily highest on record April maximum temperature on 6 April. Sydney Observatory Hill recorded 34.2°C with both Penrith and Richmond recording 36.6°C on the day. A number of stations also set late season temperature records on the same day, including Sydney Airport, Parramatta North, Bankstown and Prospect Reservoir with temperatures in excess of 34°C. Nights were also very warm and rank as the equal-warmest on record (2.2°C above the historical average).

April was a mostly dry month across the greater Sydney region with the exception of some coastal fringes. Sydney Observatory hill recorded rainfall total of 155.0 mm during April, 120% of the historical average. The vast majority of sites in Sydney, away from the coastal fringes, recorded below average rainfall, most recording less than 30% of the April average. The above average rainfall in Sydney Observatory Hill was mostly due to very heavy rainfall recorded on 4 April, with 80 mm falling in just 3 hours, the second-heaviest such total for April in Sydney. This was associated with a low pressure trough and on-shore flow. For most of the month, April was a dry and sunny month recording 7.2 hours of sunshine, above the historical average for April.

Further information

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Extremes in April 2016
Hottest day 36.6 °C at Penrith Lakes AWS on the 6th
36.6 °C at Richmond RAAF on the 6th
Warmest days on average 26.7 °C at Penrith Lakes AWS
26.7 °C at Richmond RAAF
Coolest days on average 23.2 °C at Terrey Hills AWS
Coldest day 17.9 °C at Springwood (Valley Heights) on the 7th
Coldest night 6.6 °C at Springwood (Valley Heights) on the 27th
Coolest nights on average 12.5 °C at Camden Airport AWS
Warmest nights on average 16.9 °C at Sydney (Observatory Hill)
Warmest night 19.9 °C at Sydney (Observatory Hill) on the 6th
19.9 °C at Sydney (Observatory Hill) on the 7th

19.5 °C at Sydney (Observatory Hill) on the 3rd
Warmest on average overall 20.8 °C at Penrith Lakes AWS
20.8 °C at Sydney (Observatory Hill)
20.8 °C at Sydney Airport AMO
Coolest on average overall 19.0 °C at Springwood (Valley Heights)
Wettest overall 155.0 mm at Sydney (Observatory Hill)
Driest overall 8.6 mm at Richmond RAAF
Wettest day 94.4 mm at Sydney (Observatory Hill) on the 4th
Strongest wind gust 70 km/h at Kurnell AWS on the 23rd



Record highest April temperature
New record
(°C)
Old
record
Years of
record
Average for
April
Sydney (Observatory Hill) 34.2 on the 6th 33.9 on the 5th in 1986 158 22.4
Richmond RAAF 36.6 on the 6th 34.0 on the 8th in 1998 23 23.9
Badgerys Creek AWS 36.0 on the 6th 34.6 on the 8th in 1998 21 23.8
Canterbury Racecourse AWS 34.5 on the 6th 32.6 on the 5th in 2006 21 23.3
Penrith Lakes AWS 36.6 on the 6th 34.2 on the 3rd in 2005 21 24.4



Record highest April mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
April
Prospect Reservoir 26.0 = 26.0 in 2005 51 23.7
Bankstown Airport AWS 26.1 25.9 in 2005 47 23.7
Richmond RAAF 26.7 26.0 in 1997 22 23.9
Badgerys Creek AWS 26.2 26.0 in 2005 20 23.8
Penrith Lakes AWS 26.7 26.4 in 2005 20 24.4



Record highest April mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
April
Sydney (Observatory Hill) 16.9 = 16.9 in 1989 157 14.7
Sydney Airport AMO 16.8 = 16.8 in 1989 77 14.2
Badgerys Creek AWS 13.2 13.0 in 2014 20 11.3
Canterbury Racecourse AWS 14.2 14.0 in 2002 20 12.7
Penrith Lakes AWS 15.0 14.5 in 2002 20 13.1


Record highest April mean temperature
New record
(°C)
Old
record
Years of
record
Average for
April
Prospect Reservoir 20.3 19.8 in 2005 51 18.3
Bankstown Airport AWS 20.3 19.7 in 2005 47 18.2
Camden Airport AWS 19.3 19.0 in 1989 39 17.4
Richmond RAAF 19.9 19.3 in 2002 21 17.7
Badgerys Creek AWS 19.7 19.0 in 2005 20 17.6
Canterbury Racecourse AWS 19.5 19.4 in 2005 20 18.0
Penrith Lakes AWS 20.8 20.3 in 2005 20 18.7



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
Badgerys Creek AWS 26.2 +2.4 36.0 6th 13.2 +1.9 8.8 27th 10.4 52.1 low 20%
Bankstown Airport AWS 26.1 +2.4 35.8 6th 14.5 +1.8 10.6 27th 16.6 86.9 low 19%
Camden Airport AWS 26.0 +2.2 36.3 6th 12.5 +1.5 7.6 11th 17.6 69.2 low 25%
Campbelltown (Mount Annan) 26.3   35.6 6th 12.9   8.5 27th 11.4 73.7 low 15%
Canterbury Racecourse AWS 24.8 +1.5 34.5 6th 14.2 +1.5 9.5 25th 65.0 111.0 average 59%
Holsworthy Aerodrome AWS 25.1   35.1 6th 13.6   9.6 26th 24.8
Horsley Park Equestrian Centre AWS 26.0 +2.5 35.8 6th 14.3 +1.5 10.1 11th 14.8 78.3 v low 19%
Parramatta North (Masons Drive) 25.3 +1.5 35.2 6th 14.3 +1.5 10.7 26th 30.6 93.6 low 33%
Penrith Lakes AWS 26.7 +2.3 36.6 6th 15.0 +1.9 10.6 25th 12.2 51.1 low 24%
Prospect Reservoir 26.0 +2.3 35.7 6th 14.5 +1.5 10.7 26th 15.1 76.7 low 20%
Richmond RAAF 26.7 +2.8 36.6 6th 13.1 +1.6 7.8 11th 8.6 60.6 low 14%
Springwood (Valley Heights) 24.0 +2.2 34.3 6th 14.0 +1.9 6.6 27th 26.0 89.1 low 29%
Sydney (Observatory Hill) 24.7 +2.3 34.2 6th 16.9 +2.2 13.1 25th 155.0 128.8 high 120%
Sydney Airport AMO 24.8 +1.9 34.7 6th 16.8 +2.6 12.6 25th 76.0 108.9 average 70%
Terrey Hills AWS 23.2 +1.2 32.2 6th 15.5 +1.8 11.7 25th 47.4 134.5 low 35%

Daily maximum temperatures for April 2016
123456789101112131415161718192021222324252627282930
Badgerys Creek AWS28.630.626.825.531.036.020.822.126.529.327.723.224.624.128.629.523.824.225.926.928.826.420.722.824.525.125.727.225.025.5
Bankstown Airport AWS28.931.425.724.530.035.822.220.825.429.227.423.124.723.928.028.724.123.224.826.928.227.020.722.523.625.125.727.426.026.8
Camden Airport AWS28.130.625.325.530.736.320.721.226.929.927.123.024.623.628.429.522.923.525.526.628.725.920.922.924.025.025.926.924.125.9
Campbelltown (Mount Annan)28.331.026.825.631.035.621.220.427.029.128.123.124.624.028.929.224.324.125.026.929.226.621.422.524.425.426.127.324.326.2
Canterbury Racecourse AWS27.430.824.323.528.134.520.120.723.727.925.221.623.122.526.527.622.122.323.125.826.825.120.421.322.625.024.826.325.126.2
Holsworthy Aerodrome AWS28.331.125.123.729.135.120.720.524.728.726.021.623.722.627.227.722.622.623.625.827.926.219.521.522.724.425.326.123.826.6
Horsley Park Equestrian Centre AWS28.730.726.125.231.235.820.820.826.428.826.923.925.023.127.929.423.124.223.926.728.726.419.622.523.825.126.226.824.926.2
Parramatta North (Masons Drive)28.531.225.523.829.535.220.021.025.328.226.522.023.822.427.028.023.024.023.626.027.126.218.522.223.324.025.027.626.225.5
Penrith Lakes AWS30.132.027.626.132.136.620.721.926.630.628.824.825.125.128.929.723.324.425.626.828.626.821.524.024.225.526.727.324.324.7
Prospect Reservoir28.931.226.124.831.035.720.821.126.228.522.624.323.927.929.322.624.626.226.528.527.219.623.123.625.125.426.725.626.0
Richmond RAAF30.632.027.925.632.236.621.221.026.330.228.124.025.825.628.829.722.624.725.827.428.827.420.424.124.125.027.027.726.125.2
Springwood (Valley Heights)27.029.525.223.028.334.317.921.723.728.925.321.523.022.126.026.520.421.723.024.125.924.618.820.321.522.523.724.024.222.6
Sydney (Observatory Hill)25.631.225.223.526.234.220.520.625.027.326.522.924.222.924.625.523.224.223.925.524.525.920.223.122.823.723.725.124.226.5
Sydney Airport AMO27.130.424.324.327.334.720.521.723.228.024.121.523.524.226.327.121.722.122.825.027.023.421.022.021.923.225.327.226.526.9
Terrey Hills AWS24.929.123.920.925.732.218.718.922.825.323.820.622.122.224.326.320.122.121.724.324.924.018.120.321.222.523.424.823.823.8
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 April 2016
123456789101112131415161718192021222324252627282930
Badgerys Creek AWS14.512.814.817.515.314.118.016.312.810.910.516.013.012.413.011.516.213.014.412.713.811.613.914.09.89.18.810.89.815.9
Bankstown Airport AWS14.915.316.418.215.816.019.117.414.213.011.016.913.013.414.212.918.014.115.413.613.514.614.514.311.511.010.612.211.817.1
Camden Airport AWS12.812.914.717.514.913.018.016.210.99.57.615.813.411.512.310.815.611.814.212.914.611.012.913.87.77.77.89.59.115.6
Campbelltown (Mount Annan)13.313.215.717.114.213.617.716.211.511.29.015.213.212.312.311.915.511.214.313.213.012.312.712.810.48.88.510.510.216.1
Canterbury Racecourse AWS13.514.916.618.415.015.719.417.613.912.410.716.712.412.812.312.818.213.015.113.513.315.215.314.29.510.711.512.511.416.0
Holsworthy Aerodrome AWS14.413.816.317.715.216.118.116.413.011.712.615.913.611.313.411.716.612.414.813.113.212.813.313.39.99.69.811.610.816.1
Horsley Park Equestrian Centre AWS14.313.016.817.615.616.318.216.714.512.210.116.714.212.814.413.117.014.215.314.114.213.215.114.112.411.110.712.412.616.6
Parramatta North (Masons Drive)13.814.517.018.515.216.019.017.013.513.012.016.012.513.513.813.018.012.715.014.014.214.514.314.010.810.712.012.812.516.0
Penrith Lakes AWS16.214.517.318.617.416.219.116.914.713.511.117.615.313.814.913.918.015.115.915.115.413.816.215.110.611.011.612.312.017.0
Prospect Reservoir14.314.317.918.215.716.818.617.014.413.111.117.213.113.014.113.317.814.614.914.014.813.414.814.010.910.711.412.211.917.0
Richmond RAAF14.412.814.617.715.513.917.116.412.312.27.813.613.111.512.111.017.213.615.714.113.511.515.214.08.08.29.210.39.815.8
Springwood (Valley Heights)14.316.416.616.214.917.116.014.512.513.113.015.213.513.514.214.214.913.114.013.614.216.013.912.811.711.66.612.513.316.8
Sydney (Observatory Hill)16.618.319.518.718.619.919.917.716.016.116.117.415.515.716.516.619.115.116.916.717.317.116.215.313.114.215.315.716.018.8
Sydney Airport AMO17.017.719.318.418.119.319.617.916.215.814.717.816.215.716.616.818.814.717.016.817.517.416.515.712.613.915.315.916.118.8
Terrey Hills AWS15.217.917.517.817.619.217.915.614.413.814.316.314.614.315.015.617.512.915.915.616.014.614.313.711.713.115.414.915.817.4
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
Abbotsbury (Fairfield (City Farm)) - - 1.0 1.0 - - - - - - - - - - - - - - 2.0 - - 1.0 1.0 8.0 - - 2.0 - - -
Abbotsford (Blackwall Point Rd) - - - 28.0 - - - - - - - 8.0 - - - - - 8.0 - - - 14.6 - - - - 0.5
Audley (Royal National Park) - - - 26.0 1.0 - - - - - - 9.0 - - 1.0 - - 15.0 35.0 1.0 - - 2.0 17.0 - - - - - -
Avalon Beach (Avalon (Palmgrove Rd)) - - - 11.6 6.4
























Badgerys Creek AWS - - - 0.2 - - 0.2 - 0.4 - - 2.6 0.2 - - - 0.2 - 1.4 0.2 - 0.2 1.6 1.8 0.2 - 0.2 - - 1.0
Bankstown Airport AWS - - - 3.8 0.8 - - - 0.2 - - - - 1.6 - - - - 1.0 0.2 - - 0.8 8.2 - - - - - -
Baulkham Hills Eucalyptus Ct - - - 5.0 2.5 - - - - - - - - 1.0 0.5 - - 10.5 1.5 - - - 2.5 6.5 - - - - - 0.5
Belrose (Evelyn Place) - - - 26.0 8.8 - - 0.4 0.6 - - 3.6 0.2 2.4 0.2 - - 2.4 1.6 - - - 17.0 - - - - - -
Box Hill (Hynds Road) - - - - - - - - - - - - - -















Camden Airport AWS - - - 1.6 - - - - - - - 5.8 - - - - 1.6 - 4.6 - - - 2.0 0.8 - - - - - 1.2
Campbelltown (Kentlyn (Georges River Roa - - - 5.0 - - - - - - - - - 2.0 - - 2.0 - 16.0 - - - 1.0 10.0 - - - - - 1.0
Campbelltown (Mount Annan) - - - 0.8 0.2 - - - - - - 0.4 - 0.4 - - 2.4 - 2.6 - - - 2.0 1.6 0.2 - - - - 0.8
Canterbury Racecourse AWS - - - 15.4 1.6 0.2 - - 0.2 0.2 - 2.0 0.2 - 0.4 0.2 - 11.8 13.4 7.6 - - 3.8 7.8 - - - 0.2 - -
Castle Cove (Rosebridge Ave) - - - 15.0 1.0 - - - 0.5 - - 1.0 3.0 1.0 - - - 8.0 28.0 - - - 7.0 7.0 - - - - - -
Castle Hill (Kathleen Ave) - - - 4.2 - 0.4 - 0.1 0.1 - - - - - - 2.6 4.4












Castlereagh (Castlereagh Road) - - 8.0 -

























Chatswood Bowling Club - - - 19.0 3.0 - - - - - - 5.0 1.0 1.0 1.0 - - 2.0 23.0 1.0 - - 6.0 8.0 - - - - - -
Collaroy (Long Reef Golf Club) - - - 13.6 1.8 - - - - - - 2.4 - - 1.6 - - 6.2 4.8 - - - 4.4 11.0





Concord (Brays Rd) - - - 18.4 1.6 - - - 0.8 - - 0.6 1.4 0.8 0.4 - - 0.2 3.8 0.2 - - 5.2 8.6





Concord Golf Club - - - 17.4 - - - - 0.6 - - - 3.6 - 1.8 - - 1.2 4.8 - - - 5.8 4.4 - - - - - 0.6
Frenchs Forest (Frenchs Forest Rd) - - - 26.0 3.0 - - 1.0 - - - 5.0 - 2.0 - - - 8.0 4.0 1.0 - - 9.0 10.0 - - - 1.0 - -
Holsworthy Aerodrome AWS - - - 0.8 0.6 - - - - - 0.2 - - 4.0 0.2 - 0.6 0.2 3.6 1.0 - - 1.2 11.8 0.2 - - - - 0.4
Horsley Park Equestrian Centre AWS - - 0.4 0.4 - 0.2 - - - 0.2 - - - - - - - 0.4 1.4 0.2 - - 0.4 10.8 - - - - - 0.4
Lucas Heights (ANSTO) - - - 12.4 - - - - 0.2 - - - - - - - 0.8 - 20.8 0.2 - - 1.0 14.3 - - - - - 1.5
Macquarie Park (Willandra Village) - - - 11.0 1.0 - - - 0.4 - - 1.4 - 1.0 2.0 - - 0.4 2.6 - - 5.6 7.2 - -




Marrickville Golf Club - - - 23.0 1.0 - - - - - - 18.0 - 3.0 1.0 - - 13.0 11.0 2.0 - - 4.0 9.0 1.0 - - - - -
Milperra Bridge (Georges River) - - - 6.0 - - - - - - - - - 1.0 - - - - 2.0 - - - 1.0 9.0 - - - - - -
Mona Vale Golf Club - 0.2 - - 0.2 - - - 0.2 - - - 0.2 - - - - - 0.2 - - - 0.2 - - - 0.2 - - -
North Parramatta (Burnside Homes) - - - 8.0 1.0 - - - - - - - 2.5 0.5 - - - 4.0 3.0 - - - 4.0 7.0 - - - - - 0.5
North Rocks (Muirfield Golf Club) - - - 7.5 0.5 0.5 - - - - - - - 0.5 1.0 - - 2.5 1.0 0.5 - - 3.0 3.0 - - - - - -
Parramatta North (Masons Drive) - - - 9.4 - - - - 1.0 - - - 2.8 0.6 0.2 - - 3.2 2.6 - - - 4.0 6.0 - - - - - 0.8
Peakhurst Golf Club - - - 6.0 - - - - - - - 4.0 - 1.0 - - 1.0 2.0 12.0 - - - 2.0 13.0 - - - - - 1.0
Pennant Hills (Yarrara Road) - - - 2.4 4.0 - - - 0.4 - - - - 0.4 2.0 1.4 2.6 - - 0.2 11.2 - - - -
Penrith Lakes AWS - - - 2.6 - - - - - 0.2 - - - - - - - 2.2 4.0 0.2 - - 0.8 2.0 - - - - - 0.2
Prospect Reservoir - - - 0.4 0.7 - - - 0.9 - - - - 0.2 - - - 0.2 0.5 - - - 0.8 10.8 0.2 - - - - 0.4
Randwick (Randwick St) - - 6.0 27.8 1.6 - - - 0.4 - - 5.0 1.6 0.8 0.4 - - 5.0 7.4 2.6 0.2 - 4.2 5.8 - - - - - 0.2
Richmond RAAF - - - 1.4 0.2 - - - - - - 0.4 - 0.2 - - - - 0.4 0.2 - - 0.4 4.8 - - - - - 0.6
Rose Bay (Royal Sydney Golf Club) - - 4.2 4.2 1.0 - - - 0.3 - - 1.4 0.4 2.1 2.5 - - 1.9 16.2 0.3 - 0.1 5.0 7.8 - - - - -
Rossmore (South Creek) - - - 2.0 - - - - - - - - - - - - - - 3.0 - - - 1.0 2.0 - - - - - 1.0
Sans Souci (Public School) - - - 30.0 - - - - - - - 4.0 - - - - - - 4.0 - - - - - - - - - - -
Seven Hills (Radio FM 103.2) - - - 1.5 - - - - - - - - - - - - - - 0.5 - - - 1.0 7.5 - - - - - 0.5
Seven Hills (Collins St)


1.4

















3.0 6.0





Springwood (Valley Heights) - - 0.8 9.6 1.0 - - 0.2 - - - 0.6 - - - - - 5.2 2.6 0.2 - - 1.6 4.2 - - - - - -
St Ives (Richmond Avenue)


8.8 2.2





3.0
4.0


4.2 1.0


8.2 6.8




0.2
Strathfield Golf Club - - - 11.0 1.0 - - - - - - - - 2.0 - - - - 2.0 - - - 4.0 8.0 - - - - - -
Sydney (Observatory Hill) - - - 94.4 6.4 - 0.2 - 0.4 - - 8.2 0.6 0.6 1.0 - - 2.0 15.0 15.8 - - 6.6 3.8 - - - - - -
Sydney Airport AMO - - 0.2 17.4 2.0 0.2 - - - - - 7.6 0.8 - 0.2 - 0.2 2.2 33.4 - - - 4.0 7.8 - - - - - -
Sydney Botanic Gardens - - 0.2 68.0 10.6 - - - 0.7 - - 10.4 1.4 1.6 - - - 0.9 9.8 6.4 - - 7.2 3.6 - - -


Terrey Hills AWS - - - 15.6 1.4 - - - 0.4 - 0.2 1.8 0.2 0.4 0.4 - - 10.0 1.8 0.2 0.2 0.2 7.8 6.8 - - - - - -
Turramurra (Kissing Point Road)


15.0 1.2


0.4

2.0 0.4 1.2 1.6

1.6 5.6


7.0 6.2




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

The Monthly climate summary lists the main features of the weather in Sydney 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
Enquiries