Greater Sydney in March 2018: slightly drier than average; warmer than average

Rainfall in March was generally close to average or below average across Greater Sydney. Both daytime and overnight temperatures were warmer than the March average throughout Greater Sydney.

Slightly drier than average

  • Rainfall totals during March were generally close to average or below average across Greater Sydney
  • Monthly totals were below average in the southwestern suburbs, but were closer to average around the city and in the north
  • The wettest day was on the 13th, when many coastal sites had daily totals in excess of 50 mm; Mona Vale Golf Club, which had its highest March daily rainfall on record, and Dover Heights each recorded more than 100 mm
  • March rainfall totals ranged from 30% of average at Norah Head to 134% of average at Katoomba
  • Lucas Heights and Norah Head had their lowest total March rainfall since 1998

Warmer than average

  • Daytime temperatures were warmer than average in all suburbs
  • Mean maximum temperatures ranged from 0.7 °C above average at Terrey Hills to 2.3 °C above average at Katoomba
  • The hottest day of the month was on the 18th, when Sydney Airport, Holsworthy, and Bankstown Airport all exceeded 40 °C
  • Sydney (Observatory Hill) reached 38.4 °C on the 18th, the hottest temperature so late in March since 1940
  • Badgerys Creek reached 40.0 °C on the 18th, equalling its highest March temperature on record
  • Overnight temperatures were also warmer than average in all suburbs
  • Mean minimum temperatures ranged from 0.3 °C above average at Penrith Lakes to 1.6 °C above average at both Sydney (Observatory Hill) and Sydney Airport
  • On the 27th, a high pressure system over southern New South Wales brought clear skies and low humidity to Sydney, with most suburbs across Sydney having their coldest night of the year
  • Penrith Lakes equalled its lowest March temperature on record and set a new early-season record for the coldest night at the site so early in the year
  • Norah Head had its highest March mean daily maximum temperature on record, and Sydney Airport had its highest March mean daily maximum temperature since 1940
  • Norah Head had its highest March mean temperature on record

Sydney (Observatory Hill)

  • Total rainfall for Sydney (Observatory Hill) was 113.4 mm, which is 87% of the long-term average of 130.8 mm
  • The mean daily maximum temperature for Sydney (Observatory Hill) was 26.8 °C, which is 2.0 °C above the long-term average of 24.8 °C. The warmest day was 38.4 °C on the 18th, and the coolest day was on the 13th when the temperature reached 21.1 °C
  • The mean daily minimum temperature for Sydney (Observatory Hill) was 19.2 °C, which is 1.6 °C above the long-term average of 17.6 °C. The coldest morning was 14.0 °C on the 27th, and the warmest morning was on the 16th when the minimum temperature was 22.0 °C

Further information

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Extremes in March 2018
Hottest day 40.5 °C at Sydney Airport AMO on the 18th
Warmest days on average 29.3 °C at Penrith Lakes AWS
Coolest days on average 22.3 °C at Mount Boyce AWS
Coldest day 12.6 °C at Mount Boyce AWS on the 22nd
Coldest night 5.4 °C at Mount Boyce AWS on the 27th
Coolest nights on average 12.1 °C at Mount Boyce AWS
Warmest nights on average 19.8 °C at Norah Head AWS
19.8 °C at Sydney Harbour (Wedding Cake West)
Warmest night 22.5 °C at Norah Head AWS on the 20th
Warmest on average overall 23.4 °C at Norah Head AWS
Coolest on average overall 17.2 °C at Mount Boyce AWS
Wettest overall 226.4 mm at Katoomba (Murri St)
Driest overall 25.6 mm at Horsley Park Equestrian Centre AWS
Wettest day 112.8 mm at Mona Vale Golf Club on the 13th
Strongest wind gust 85 km/h at Mount Boyce AWS on the 26th

Record highest March daily rainfall
New record
(mm)
Old
record
Years of
record
Mona Vale Golf Club 112.8 on the 13th 106.0 on the 20th in 2011 48



Lowest March total rainfall for at least 20 years
Observed
(mm)
Most recent
lower
Average for
March
Lucas Heights (ANSTO) 28.0 15.5 in 1998 118.9
Norah Head AWS 34.2 13.2 in 1998 113.1

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




Record highest March temperature
New record
(°C)
Old
record
Years of
record
Average for
March
Badgerys Creek AWS 40.0 on the 18th = 40.0 on the 13th in 1998 23 26.8



Record highest March mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
March
Norah Head AWS 27.1 26.3 in 2016 23 25.0

Highest March mean daily maximum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
March
Sydney Airport AMO 27.3 28.4 in 1940 25.3



Record lowest March temperature
New record
(°C)
Old
record
Years of
record
Average for
March
Penrith Lakes AWS 8.3 on the 27th = 8.3 on the 31st in 2008 23 16.8



Record highest March mean temperature
New record
(°C)
Old
record
Years of
record
Average for
March
Norah Head AWS 23.4 23.2 in 2006 23 21.9



Summary statistics for March 2018
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
March
2018
Diff
from
average
Highest for
March
2018
Mean for
March
2018
Diff
from
average
Lowest for
March
2018
Total for
March
2018
Average
for
March
Rank of
March
2018
Fraction of
March
average
Badgerys Creek AWS 28.2 +1.4 40.0 18th 16.0 +0.8 7.2 27th 27.6 81.3 v low 34%
Bankstown Airport AWS 28.3 +2.0 40.1 18th 17.5 +1.2 10.6 27th 40.6 98.7 low 41%
Camden Airport AWS 28.3 +1.5 39.7 18th 15.3 +0.4 6.5 27th 45.6 89.6 average 51%
Campbelltown (Mount Annan) 28.5 +1.4 39.7 18th 15.7 +0.6 8.0 27th 26.8 80.1 v low 33%
Canterbury Racecourse AWS 26.9 +0.9 38.9 18th 17.6 +1.0 10.5 27th
Cooranbong (Lake Macquarie AWS) 27.6   38.8 18th 16.7   7.3 27th 101.6 119.7 average 85%
Gosford AWS 26.6   38.2 18th 17.7   9.9 27th 102.8
Holsworthy (Defence) 27.4   40.4 18th 15.6   8.3 27th 76.4
Holsworthy Aerodrome AWS 27.7   39.8 18th 16.3   10.1 27th 28.0
Horsley Park Equestrian Centre AWS 28.2 +1.4 39.2 18th 16.8 +0.7 10.0 27th 25.6 78.0 low 33%
Katoomba (Murri St) 22.6 +2.3 30.2 18th 12.9 +1.4 6.3 27th 226.4 168.5 high 134%
Mangrove Mountain AWS 26.4 +1.7 36.4 18th 15.8 +0.6 7.8 27th 121.8 137.2 average 89%
Mount Boyce AWS 22.3 +1.8 29.8 18th 12.1 +0.7 5.4 27th 112.0 116.7 average 96%
Norah Head AWS 27.1 +2.1 37.1 18th 19.8 +1.0 14.1 27th 34.2 113.1 v low 30%
Parramatta North (Masons Drive) 27.5 +1.2 38.5 18th 17.0 +1.1 11.2 27th 86.4 110.4 average 78%
Penrith Lakes AWS 29.3 +1.7 38.8 18th 17.1 +0.3 8.3 27th 78.6 76.6 average 103%
Prospect Reservoir 28.0 +1.6 39.1 18th 16.9 +0.7 10.0 27th 63.3 97.7 average 65%
Richmond RAAF 28.8 +1.8 39.6 18th 16.6 +0.8 7.2 27th 39.6 78.4 average 51%
Springwood (Valley Heights) 26.1 +0.9 37.1 18th 15.9 +0.4 9.2 27th 108.0 127.2 average 85%
Sydney (Observatory Hill Comparison) 27.4   38.0 18th 18.8   13.6 27th 110.2
Sydney (Observatory Hill) 26.8 +2.0 38.4 18th 19.2 +1.6 14.0 27th 113.4 130.8 average 87%
Sydney Airport AMO 27.3 +2.0 40.5 18th 19.2 +1.6 14.0 27th 107.6 117.0 average 92%
Sydney Harbour (Wedding Cake West) 24.8 +1.0 38.2 18th 19.8 +0.5 15.6 27th
Sydney Olympic Park AWS (Archery Centre) 27.3   38.5 18th 17.8   10.8 27th 81.4
Terrey Hills AWS 25.4 +0.7 37.1 18th 17.3 +0.4 12.0 27th 149.2 133.2 average 112%

Daily maximum temperatures for March 2018
12345678910111213141516171819202122232425262728293031
Badgerys Creek AWS27.827.032.528.624.024.625.124.825.726.630.428.920.528.435.326.835.340.035.130.221.120.721.627.733.325.925.229.730.135.126.7
Bankstown Airport AWS26.826.331.127.226.026.925.928.025.926.329.828.422.027.935.125.933.940.134.429.622.422.724.027.833.226.225.829.429.332.727.0
Camden Airport AWS28.127.932.428.523.025.025.325.926.427.430.929.220.428.835.826.836.939.734.630.119.022.321.727.133.025.225.529.430.435.226.1
Campbelltown (Mount Annan)27.027.032.228.223.825.425.326.127.127.231.229.220.428.835.727.036.839.735.430.519.521.922.427.832.825.325.830.031.035.026.6
Canterbury Racecourse AWS25.025.128.625.524.324.324.224.324.926.128.327.321.526.733.925.133.338.931.327.321.222.624.626.632.125.924.027.728.030.624.4
Cooranbong (Lake Macquarie AWS)25.727.129.129.625.524.825.025.325.526.827.126.823.327.635.426.934.638.829.729.422.121.423.827.732.726.924.028.227.132.526.0
Gosford AWS25.325.427.525.424.523.623.924.124.725.126.526.322.426.733.325.630.838.228.427.422.222.423.826.732.525.823.926.827.331.925.1
Holsworthy (Defence)25.424.931.924.823.423.023.823.924.025.931.127.419.928.235.025.135.440.435.027.119.120.422.028.033.425.126.129.730.134.625.4
Holsworthy Aerodrome AWS25.626.030.926.224.624.424.925.125.126.030.128.121.226.734.925.534.539.834.128.622.621.923.227.433.225.625.129.629.532.625.8
Horsley Park Equestrian Centre AWS27.127.532.528.124.525.125.425.826.126.530.228.920.727.934.526.635.339.234.830.021.721.423.127.732.225.924.929.930.034.726.4
Katoomba (Murri St)23.722.428.126.117.416.718.618.319.826.324.315.322.026.719.330.030.229.425.213.016.723.417.319.225.425.928.922.4
Mangrove Mountain AWS25.425.531.027.124.822.123.223.122.925.026.926.222.126.333.325.433.736.433.427.419.420.321.527.330.924.721.627.427.432.824.2
Mount Boyce AWS24.621.927.727.118.716.818.719.018.820.325.425.117.323.026.522.428.629.828.624.713.512.616.423.523.616.819.325.926.327.522.0
Norah Head AWS25.925.529.425.126.323.826.525.325.527.127.727.024.129.230.526.429.737.128.824.923.023.325.527.433.026.223.729.529.728.024.4
Parramatta North (Masons Drive)26.226.031.027.324.825.024.825.525.825.829.326.220.327.034.526.034.038.533.029.020.322.822.828.032.026.024.628.829.033.526.0
Penrith Lakes AWS29.829.133.931.224.725.826.526.926.828.231.229.820.429.335.829.136.238.835.331.322.121.425.128.133.326.226.230.031.235.628.7
Prospect Reservoir26.727.032.028.224.725.025.026.025.826.530.228.420.027.734.526.435.039.134.129.720.721.822.828.533.526.125.029.029.834.525.7
Richmond RAAF28.527.933.030.124.725.926.726.227.127.330.729.620.029.036.327.935.439.635.131.119.921.524.127.633.026.426.030.030.534.727.9
Springwood (Valley Heights)26.825.830.027.721.222.723.423.723.224.628.426.818.125.433.424.532.237.132.129.018.118.021.425.330.724.022.926.627.832.224.7
Sydney (Observatory Hill Comparison)26.426.328.725.125.425.225.226.527.529.229.029.120.527.329.727.032.638.029.127.521.923.626.327.631.926.226.527.328.629.025.5
Sydney (Observatory Hill)26.326.527.324.925.725.424.926.926.726.527.227.021.125.629.726.231.938.428.427.622.223.324.825.632.426.424.726.827.029.325.6
Sydney Airport AMO25.325.029.523.923.523.525.625.425.726.128.927.322.628.234.826.132.140.531.426.321.923.624.827.333.827.824.128.429.529.625.3
Sydney Harbour (Wedding Cake West)23.723.425.023.123.322.723.623.324.524.624.623.922.323.926.624.326.638.225.724.922.322.422.724.131.725.723.924.224.225.523.7
Sydney Olympic Park AWS (Archery Centre)25.726.129.426.124.224.724.525.225.625.828.528.420.926.734.126.033.538.531.628.221.122.623.628.532.426.524.628.129.032.025.4
Terrey Hills AWS24.124.127.423.822.722.423.323.324.324.426.326.021.025.132.024.130.237.127.625.819.920.621.925.031.024.322.626.226.232.223.4
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 March 2018
12345678910111213141516171819202122232425262728293031
Badgerys Creek AWS17.718.818.119.119.816.716.014.915.016.314.514.017.916.216.219.616.015.117.412.716.615.416.414.217.117.47.212.915.114.318.6
Bankstown Airport AWS20.318.618.420.120.617.815.616.217.417.515.814.619.717.918.221.018.317.019.014.918.617.217.315.417.519.010.614.516.115.920.0
Camden Airport AWS16.816.717.818.919.617.416.314.013.314.313.612.916.816.715.519.715.814.216.011.115.215.015.513.817.215.96.512.813.913.317.1
Campbelltown (Mount Annan)17.715.816.918.719.716.815.814.615.515.613.013.018.216.515.819.516.114.615.414.716.415.313.617.216.18.012.014.214.418.8
Canterbury Racecourse AWS20.518.818.119.420.618.017.115.219.418.614.314.319.118.318.221.318.816.919.715.018.717.517.415.017.418.510.514.116.017.120.7
Cooranbong (Lake Macquarie AWS)18.015.816.018.420.418.017.015.817.214.814.010.314.817.917.221.620.116.220.920.520.016.917.415.315.619.77.312.313.414.820.0
Gosford AWS19.318.717.219.321.518.117.715.416.615.014.113.818.118.018.522.219.817.621.421.018.917.417.815.518.319.69.914.616.117.820.9
Holsworthy (Defence)17.516.416.618.118.916.115.513.515.215.914.313.417.816.715.918.615.516.216.212.516.315.215.513.716.816.08.312.814.615.118.9
Holsworthy Aerodrome AWS18.217.817.518.819.617.215.514.017.115.713.714.318.417.217.119.716.915.617.713.517.716.016.613.717.217.410.113.414.814.818.1
Horsley Park Equestrian Centre AWS18.618.017.919.120.416.515.215.916.817.215.314.918.116.817.620.017.515.918.816.617.115.816.514.617.118.210.013.815.915.919.8
Katoomba (Murri St)14.312.713.216.114.811.111.111.210.29.812.213.312.113.714.414.418.213.614.410.411.011.315.46.311.612.416.813.8
Mangrove Mountain AWS16.917.015.619.118.315.714.812.613.913.912.312.415.616.316.919.218.017.018.416.016.315.215.514.017.418.07.813.615.216.918.6
Mount Boyce AWS13.812.112.414.514.810.610.610.88.711.99.011.212.911.113.814.214.615.714.313.511.29.710.310.413.811.45.410.311.915.713.4
Norah Head AWS20.619.619.721.321.119.719.919.518.020.317.517.619.820.320.422.321.421.122.122.521.118.218.618.419.520.014.117.219.619.821.6
Parramatta North (Masons Drive)19.617.817.519.020.517.014.514.017.017.814.814.618.017.717.320.518.517.518.517.717.816.516.014.717.217.511.213.815.517.420.0
Penrith Lakes AWS19.119.319.120.220.616.216.316.216.918.114.014.817.917.818.120.718.017.219.114.816.615.816.415.917.418.88.314.216.416.520.1
Prospect Reservoir19.518.218.019.520.716.615.316.316.718.014.514.916.917.618.120.718.416.517.714.817.316.016.214.817.818.010.014.014.016.820.4
Richmond RAAF18.119.418.319.521.116.215.613.916.818.112.213.118.217.718.621.218.016.019.413.317.015.816.315.416.919.37.213.114.815.919.6
Springwood (Valley Heights)17.116.617.418.818.514.214.414.414.116.213.214.216.015.817.018.817.220.217.416.015.114.014.414.818.116.69.213.416.216.518.2
Sydney (Observatory Hill Comparison)19.619.019.221.321.018.119.417.419.319.817.217.718.618.519.521.520.320.121.419.518.717.917.616.818.918.013.615.118.819.520.1
Sydney (Observatory Hill)21.119.219.521.621.218.119.617.719.519.817.418.318.818.619.622.020.520.221.719.618.718.018.017.119.118.414.017.019.819.820.1
Sydney Airport AMO21.018.620.322.020.718.618.718.319.718.518.417.819.118.420.520.921.220.721.020.118.017.917.217.419.919.014.016.919.420.320.3
Sydney Harbour (Wedding Cake West)20.319.520.121.621.218.819.620.920.420.618.919.119.119.119.822.420.921.121.922.019.718.718.018.120.418.415.616.320.120.421.3
Sydney Olympic Park AWS (Archery Centre)19.518.218.420.321.117.916.015.817.919.015.515.718.918.418.721.719.417.419.914.918.617.417.115.718.218.010.815.317.418.120.8
Terrey Hills AWS18.117.517.519.919.116.116.816.217.217.514.714.816.917.518.220.118.519.319.219.417.515.616.215.718.317.212.015.118.218.319.1
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 March 2018
12345678910111213141516171819202122232425262728293031
Abbotsbury (Fairfield (City Farm)) - - - - - 5.0 2.0 - - 1.0 - - 1.0 1.0 - - - - - - 8.0 4.0 3.0 1.0 3.0 3.0 - - - - -
Abbotsford (Blackwall Point Rd) - - - - - 10.0 - - - - - 30.0 - - - - - - 11.0 10.0 8.0 1.0 3.0 4.0




Audley (Royal National Park) - - - - - 7.0 7.0 - 1.0 2.0 - - 12.0 4.0 - - - - - - 12.0 8.0 1.0 - - 3.0 - - - - -
Avalon Beach (Avalon (Palmgrove Rd)) - 0.8 - - - 18.0 2.8 - 1.8 1.0 - - 94.6 2.6 - - - - - - 3.4 1.8 2.4 0.6 - 15.0 - - - - -
Badgerys Creek AWS - - - - - 4.2 4.6 - - 2.4 - - - 0.6 - - - - - - 7.4 4.2 1.4 0.2 0.8 1.8 - - - - -
Bankstown Airport AWS - - - - - 2.6 5.4 - - 1.6 - - - 6.8 - - - - - - 7.6 7.2 4.2 0.2 1.0 4.0 - - - - -
Baulkham Hills Eucalyptus Ct - - - - - 7.0 4.5 - - - - - 23.5 2.5 - - - - - - 19.0 19.5 4.0 - 2.5 4.5 - - - - -
Belrose (Evelyn Place) - - 0.4 - - 6.2 4.4 - - 0.6 - - 47.2 10.0 - - - - - - 10.4 5.4 9.0 0.4 - 18.6 - - - -
Bilpin Post Office - 0.8 - - - 33.2 3.8























Blackheath (Wombat Street) - - - - - 26.0 8.0 - - - - - 6.0 8.0 - - - - - - 14.0 23.0 19.0 1.0 5.0 5.0 3.0 - - - -
Box Hill (McCall Gardens) - - - - - 6.0 3.0 - - - - - 8.0 5.0 - - - - - - 6.0 5.0 3.0 - 1.0 3.0 - - - - -
Bringelly (Maryland) - - - - - 4.0 11.0 - - - - - - 1.0 - - - - - - 10.0 6.0 4.0 - 1.0 2.0 - - - - -
Camden Airport AWS - - - - - 3.4 2.4 0.8 - 0.2 - - 0.2 0.6 - - - - - - 11.8 22.0 1.8 0.2 0.4 1.8 - - - - -
Campbelltown (Kentlyn (Georges River Roa - - - - - - 12.0 1.0 - - - - - 5.0 - 1.0 - - - - 6.0 8.0 4.0 - - 4.0 - - - - -
Campbelltown (Mount Annan) - - - - - 2.6 2.6 0.6 - - - - - 1.2 - - - - - - 11.6 5.4
- 0.2 2.6 - - - - -
Canterbury Racecourse AWS - - - - - 3.2 4.4 0.2 - 0.4 - - 8.0 4.0 - - - - - - 20.8 18.2
0.4 1.2 3.8 1.6 - 0.2 - -
Castle Cove (Rosebridge Ave) - - - - - 7.0 5.5 - - - - - 52.0 13.0 - - - - - - 15.0 10.0 4.5 - 3.0 14.5




Castle Hill (Kathleen Ave) - - - - - 7.3 6.0 - - - - - 22.5 - - - - - - - 16.4 16.1 8.7 0.4 2.6 13.7




Chatswood Bowling Club - - - - - 7.0 7.0 - - - - - 44.0 7.0 - 1.0 - - - - 15.0 5.0 6.0 - 2.0 12.0 - - - - -
Collaroy (Long Reef Golf Club) - - - - - 8.4 3.6 - - - - - 50.8 17.8 - - - - - - 1.2 0.8 0.8 - 1.0 15.4




Concord (Brays Rd) - - - - - 4.4 3.0 - - 0.6 - - 13.6 11.4 - - - - - - 14.4 10.6 5.0 - 3.8 5.0




Concord Golf Club - - - - - 3.4 3.0 0.4 - 0.2 - - 15.6 10.2 - - - - - - 20.6 15.4 5.2 - 3.4 4.6




Cooranbong (Avondale) - - - - 2.0 14.0 12.0 1.0 1.0 - - - - 1.0 - 1.0 - - - - 5.0 47.0 8.0 1.0 - 12.0 1.0 - - - -
Cooranbong (Lake Macquarie AWS) - - - - 2.4 13.2 11.8 0.2 1.4 0.2 - - - 0.8 - - - - - - 5.6 45.6 7.8 - - 12.4 0.2 - - - -
Darkes Forest (Kintyre) - - - - - - - - - - - - - - - - - - - - 5.2 30.0 8.6 0.2 - 1.0 - - - - -
Dover Heights (Portland St) - - - - 0.2 5.6 3.6 1.2 - 0.6 - - 100 22.0 - - - - - - 7.6 1.6 7.6 - 0.6





Erskine Park Reservoir - - - - - 7.0 2.0 - - - - - - 3.0 - - - - - - 8.0 5.0 3.0 2.0 2.0 1.0 - - - - -
Faulconbridge (Great Western Hwy) - - - - - 29.0 2.0 - - - - - 9.0 9.0 - - - - - - 19.0 13.0 10.0 - 30.0 5.0 - - - - -
Faulconbridge (St Georges Crescent) - 0.2 - - 0.4 24.2 - - - - - - 8.6 11.6 0.2 - - - - - 16.6 14.4 9.4 0.4 9.8 3.0




Frenchs Forest (Frenchs Forest Rd) - - - - - 14.0 5.0 - - - - - 50.0 10.0 - - - - - - 22.0 12.0 11.0 - 1.0 17.0 - - - - -
Gears (Wyong River)




















13.0 12.0 - - 14.0 - - - - -
Gosford AWS - 0.8 - - - 17.2 4.8 - - - - - 2.0 2.4 - - - - - - 23.0 20.6 14.6 - 0.2 17.2 - - - - -
Holsworthy (Defence) - - - - - 1.8 17.2 1.0 - 0.8 - - - 5.8 - 0.8 - - - - 16.2 20.6 5.8 0.4 - 5.6 0.4 - - - -
Holsworthy Aerodrome AWS 0.2 - - - - 2.8 5.2 - - 1.0 - - - 4.6 - - - - - - 6.4 2.2 1.2 1.0 - 3.4 - - - - -
Hornsby (Swimming Pool) - - - - - 13.8 6.2 - - 0.2 - - 30.8 4.0 - - - - - -










Horsley Park Equestrian Centre AWS - - - - - 7.2 3.6 - - - - - 0.4 1.0 0.2 - 0.2 - - - 2.0 6.4 1.8 0.2 1.4 1.2 - - - - -
Katoomba (Murri St) - 0.6 17.4 0.8 -
0.6 - 7.4 9.0 0.2 0.4 0.2 - - - 106 26.6 0.8 3.0
- - - - 0.4
Kurrajong Heights (Bells Line of Road) - 0.8 - - 0.6 26.0 7.4 - - - - - 22.0 0.2 0.3 - - - - 35.8 7.2 0.2 12.2




Lucas Heights (ANSTO) - - - - - 2.4 9.4 0.4 - - - - - 4.4 - - - - - - 11.4 - - - - - - - - - -
Mangrove Mountain AWS - 0.6 0.2 - - 25.2 3.2 0.4 0.4 0.6 - - - 8.6 0.2 - - - - - 20.2 29.2 15.0 0.2 0.2 17.4 0.2 - - - -
Marrickville Golf Club - - - - - 5.0 3.0 - - 1.0 - - 18.0 5.0 - - - - - - 20.0 15.0 5.0 - 1.0 4.0 - - - - -
Menangle Bridge (Nepean River) - - - - - 2.0 2.0 - - - - - - 2.0 - - - - - - 12.0 11.0 1.0 - - 1.0 - - - - -
Milperra Bridge (Georges River) - - - - - 2.0 5.0 - - - - - - 4.0 - - - - - - 5.0 4.0 5.0 - - 1.0 - - - - -
Mona Vale Golf Club - - - 0.2 - 14.6 4.2 - 1.4 - - - 113 1.8 - - - 0.2 - - 3.2 3.8 5.6 0.4 0.2 21.2 - - 0.2 0.2 -
Mount Boyce AWS - 0.2 0.4 - - 22.0 8.8 - - 0.2 0.2 - 4.2 5.8 - 0.2 - - - - 14.6 23.4 22.0 0.8 4.6 4.4 - - 0.2 - -
Mount Wilson (Clarine) - 1.0 0.6 - 2.2 32.0 8.0 - - 0.4 - - 3.8 11.0 - 0.2 - - - - 20.0 36.0 21.0 2.6 30.6 12.8 - - - - -
Norah Head AWS - - - - - 2.0 0.4 0.2 4.4 0.2 0.2 - - - - 4.8 - - 0.2 - 4.0 4.8 3.8 0.4 - 8.4 - - 0.2 - 0.2
North Rocks (Muirfield Golf Club) - - - - - 7.5 3.5 - - - - - 22.0 1.5 - - - - - - 21.5 12.0 3.5 - 2.5 5.0 - - - - -
North Ryde Golf Club - - - - - 11.0 4.0 - - - - - 33.0 10.0 - 1.0 - - - - 10.0 8.0 7.0 1.0 3.0 11.0 - - - - -
Parramatta North (Masons Drive) - - - - - 7.8 4.2 0.4 - 0.2 - - 17.6 3.0 - - - - - - 20.0 19.0 6.6 0.2 3.4 4.0 - - - - -
Peakhurst Golf Club - - - - - 3.0 5.0 - - 1.0 - - 5.0 6.0 - - - - - - 10.0 9.0 6.0 - - 1.0 - - - - -
Pennant Hills (Yarrara Road) - - - - - 12.8 7.4 - - - - - 36.2 2.8 - - - - - - 16.2 32.0 5.4 0.8 2.4 11.2 - - - - -
Penrith Lakes AWS - - - - - 13.8 2.0 - - - - - 20.6 5.0 0.2 - - - - - 5.4 5.0 4.8 0.2 19.6 1.8 0.2 - - - -
Picton Council Depot - - - - - 8.0 9.2 0.2 - - - - 0.4 3.0 - - - - - - 0.6 2.6 4.4 - - - 2.8 - -

Prospect Reservoir - 0.2 - - - 8.4 3.4 0.2 - 0.6 - - 5.2 3.2 - 0.1 - - - - 11.6 15.0 6.2 0.8 3.4 5.0 - - - - -
Putty (The Gibba) - - - - - 21.0 3.0 1.0 - - - - - - - - - - - - 5.0 18.0 7.0 - 13.0 21.0 - - - - -
Randwick (Randwick St) - - - - - 5.8 3.6 - - - - 0.2 79.0 10.0 - - - - - - 4.6 2.0 4.8 - 0.4 7.0 - - - - -
Richmond RAAF - - - - - 6.6
- - - - - 7.0 2.2 0.2 - - - - - 5.6 9.4 4.6 - 1.8 2.2 - - - - -
Rose Bay (Royal Sydney Golf Club) - - - - 0.2 4.5 4.6 0.8 - - - - 79.2 8.8 - - - - - - 7.4 2.0 8.5 0.1 0.6 15.4 - - -

Rossmore (South Creek) - - - - - 3.0 4.0 - - 2.0 - - - 2.0 - - - - - - 8.0 3.0 1.0 1.0 1.0 2.0 - - - - -
Sans Souci (Public School) - - - - - 2.0 3.0 - - 1.0 - - 11.0 5.0 - - - - - - 9.0 11.0 4.0 - - 2.0 - - - - -
Seven Hills (Radio FM 103.2) - - - - - 5.0 4.0 - - - - - 13.5 0.5 - - - - - - 14.0 13.5 3.0 0.5 3.0 2.5 - - - - -
Seven Hills (Collins St)




6.0 2.4




16.6 1.4





4.4 14.6 5.0

5.8




Shanes Park (South Creek Road) - - - - - 8.2 2.2 - - - - - 5.4 5.0 - - 0.2 - - - 8.2 7.4 2.8 - 9.4 2.8 - - - - -
Springwood (Valley Heights) - - - - - 23.2 1.4 - - - - - 8.0 7.0 - - - - - - 13.2 7.6 8.8 0.2 35.2 3.4 - - - - -
St Ives (Richmond Avenue) - - - - - 12.2 - - - - - - 42.8 1.2 - - - - - - 18.6 21.2 15.0 0.6 1.6 15.2




Sydney (Observatory Hill Comparison) - 0.4 - - - 6.2 2.0 0.2 0.2 0.6 0.2 - 55.2 16.6 - - - - - -
7.0 5.8 - 1.2 14.4 0.2 - - - -
Sydney (Observatory Hill) - - - - - 5.6 1.8 - - 0.2 - - 53.0 16.6 0.2 - - - - - 12.4 6.4
- 1.0 14.2 2.0 - - - -
Sydney Airport AMO 0.2 - - - - 5.0 3.6 0.6 0.2 1.4 - - 56.2 4.4 - - - - - - 23.0 8.0 3.0 0.2 - 1.8 - - - - -
Sydney Botanic Gardens - - - - - 5.8 2.0 0.2 0.3 - - - 59.0 14.4 - - - - - - 11.0 6.0 6.7 - 1.2 15.0 -



Sydney Olympic Park AWS (Archery Centre) - - - - - 3.6 4.6 0.4 - 0.4 - - 13.6 9.4 - - - - - - 18.6 15.0 8.0 0.2 3.8 3.8 - - - - -
Terrey Hills AWS - - - - - 15.6 5.2 - - 0.2 - - 53.6 3.8 - - - - - - 19.6 23.6 8.4 0.2 0.8 18.0 - 0.2 - - -
Wahroonga (Ada Avenue) - - - - - 16.4 7.6 0.2 - - - - 49.2 3.0 - - - - - - 24.2 20.8 8.2 1.6 2.2 11.2 - - - - -
Warragamba - - - - - 10.0 10.0 - - 1.0 - - 7.0 1.0 - - - - - - 18.0 10.0 4.0 1.0 6.0 - - - - - -
Wedderburn (Booalbyn) - - - - - 2.0 7.0 1.0 - - - - - 4.0 - - - - - - 16.0 13.0 4.0 5.0 - 1.0 - - - - -
Wyong (Jilliby (Jilliby Creek)) - 0.2 - - - 5.8 11.4 1.0 2.4 0.8 - - - 1.0 - 0.4 - - - - 21.8 51.2 18.6 1.2 - 13.8 - - - - -
Wyong (Kulnura (Jeavons)) - - - - - 18.0 10.0 2.0 - 1.0 - - - 2.0 - - - - - - 20.0 19.0 12.0 - - 14.0 - - - - -
Wyong (Mount Elliot) - 3.0 - - - 16.0 5.0 1.0 - 2.0 - - 2.0 3.0 - - - - - - 20.0 30.0 13.0 - - 17.0 - - - - -
Wyong (Olney Forest) - 1.0 - - 2.0 20.0 13.0 1.0 4.0 1.0 - - - 3.0 - - - - - - 30.0 62.0 20.0 - - 13.0 - - - - -
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 Greater Sydney 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.

In September 2017 this summary was broadened to include data from observing sites in or near the Greater Sydney “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 9 am on Tuesday 3 April 2018. 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.

Further information

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