Sydney in April 2015: Rain, wind and hail

  • Wettest month since June 2007
  • East Coast Low causes strong winds, heavy rain, high seas, cool days
  • Thunderstorm brings large volumes of hail

Sydney Observatory Hill recorded 366.8 mm during April 2015, three times the historical average. This is the seventh-wettest April on record for Sydney and the wettest since 1989, as well as the highest monthly rainfall total for any month since June 2007. The rain fell over 23 days, the equal-second-highest number on record for April and the most rain days since 1923 (average 13 days). There were an average of 5.7 hours of sunshine per day, well below the historical average of 6.9 hours but slightly higher than April 2014 (5.4 hours).

The majority of the rain was associated with an East Coast Low that developed off the Hunter coast on the evening of the 20th. Observatory Hill recorded 225.2 mm of rain over the 48 hours to 9am on the 22nd, the heaviest total since 239.6 mm was recorded during an East Coast Low over 10-11 April 1998. The system also caused very persistent strong winds, with 44 consecutive hours of wind speeds over 50 km/h at Sydney Airport and maximum wind gusts of 135 km/h at Wattamolla, as well as waves as high as 14.9 m recorded by a Manly Hydraulics buoy off Sydney. These contributed to flash flooding, downed trees, widespread power outages, and coastal erosion.

Daily totals above 20 mm were also recorded in parts of southeast Sydney on the 1st, as well as across most of the metropolitan region on the 4th and 5th. Thunderstorms on the 25th also caused large volumes of small hail and localised heavy rainfall, with totals of 63.3 mm at Prospect Dam, leading to reports of flash flooding.

Maximum temperatures during April were 0.3 °C above average at Observatory Hill, the coolest April since 2011, but cooler than average elsewhere in Sydney. Days were very cold during the East Coast Low between the 20th and 22nd, with several short-term stations recording their coolest April day on record, with further cool conditions towards the end of the month. At Observatory Hill there were three consecutive days below 18 °C between the 20th and 22nd, the longest April cool spell since 15-17 April 1983. In comparison, warm sea surface temperatures contributed to warm nights across the city, with the mean minimum temperature at Observatory Hill 0.6 °C above average.

Further information

Media
(03) 9669 4057
Enquiries

Extremes in April 2015
Hottest day 32.6 °C at Sydney Airport AMO on the 16th
Warmest days on average 23.3 °C at Prospect Reservoir
Coolest days on average 21.1 °C at Terrey Hills AWS
Coldest day 12.6 °C at Springwood (Valley Heights) on the 20th
Coldest night 4.9 °C at Campbelltown (Mount Annan) on the 28th
Coolest nights on average 11.8 °C at Campbelltown (Mount Annan)
Warmest nights on average 15.3 °C at Sydney (Observatory Hill)
15.3 °C at Sydney Airport AMO
Warmest night 20.2 °C at Sydney Airport AMO on the 18th
Warmest on average overall 19.0 °C at Sydney (Observatory Hill)
Coolest on average overall 16.7 °C at Canterbury Racecourse AWS
Wettest overall 453.1 mm at Castle Hill (Kathleen Ave)
Driest overall 219.8 mm at Camden Airport AWS
Wettest day 166.6 mm at Turramurra (Kissing Point Road) on the 21st
Strongest wind gust 96 km/h at Sydney Airport AMO on the 21st

Record highest April daily rainfall
New record
(mm)
Old
record
Years of
record
Marrickville Golf Club 123.0 on the 21st 116.3 on the 27th in 1966 40
Chatswood Bowling Club 131.0 on the 21st 78.0 on the 28th in 2003 25
Box Hill (Hynds Road) 113.0 on the 21st 88.0 on the 18th in 2012 22
Richmond RAAF 113.4 on the 21st 58.4 on the 1st in 2009 21
Canterbury Racecourse AWS 123.0 on the 21st 100.0 on the 11th in 1998 20
Penrith Lakes AWS 85.6 on the 21st 43.8 on the 19th in 2012 20

Record highest April total rainfall
New record
(mm)
Old
record
Years of
record
Average for
April
Prospect Reservoir 422.2 363.5 in 1988 129 77.1
Marrickville Golf Club 413.0 370.6 in 1927 80 107.1
Peakhurst Golf Club 339.0 228.8 in 1985 39 79.9
Avalon Beach (Avalon (Palmgrove Rd)) 382.2 315.2 in 1998 35 118.4
Chatswood Bowling Club 392.0 302.2 in 1952 25 106.1
Box Hill (Hynds Road) 354.0 181.0 in 2012 22 63.9
Richmond RAAF 353.0 131.2 in 2012 21 63.1
Penrith Lakes AWS 258.8 93.6 in 2012 20 53.1

Record lowest April daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
April
Camden Airport AWS 15.2 on the 20th 16.6 on the 29th in 2009 39 23.8
Richmond RAAF 15.0 on the 20th 16.4 on the 23rd in 1998 22 23.9
Badgerys Creek AWS 15.0 on the 20th 16.5 on the 28th in 2008 20 23.9
Canterbury Racecourse AWS 15.7 on the 20th 16.5 on the 28th in 2008 20 23.4
Penrith Lakes AWS 14.6 on the 20th 16.0 on the 23rd in 1998 20 24.4

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
Badgerys Creek AWS 22.3 -1.6 30.2 16th 12.7 +1.4 7.2 28th 253.4 54.2 v high 468%
Bankstown Airport AWS 23.0 -0.7 31.7 16th 13.5 +0.8 7.8 28th 299.6 88.4 v high 339%
Camden Airport AWS 22.6 -1.2 31.1 16th 11.9 +0.9 5.3 28th 219.8 70.5 v high 312%
Campbelltown (Mount Annan) 22.5   30.9 16th 11.8   4.9 28th 226.0
Canterbury Racecourse AWS 21.3 -2.1 30.2 16th 12.2 -0.5 7.5 28th 397.6 113.4 v high 351%
Holsworthy Aerodrome AWS 22.5   31.4 16th 12.9   7.7 28th 239.2
Horsley Park Equestrian Centre AWS 22.6 -1.0 30.7 16th 13.2 +0.4 9.1 28th 298.2 81.8 v high 365%
Parramatta North (Masons Drive) 22.6 -1.2 31.2 16th 13.1 +0.3 7.8 28th 406.5 94.8 v high 429%
Penrith Lakes AWS 22.9 -1.5 31.2 16th 13.8 +0.8 8.4 28th 258.8 53.1 highest 487%
Prospect Reservoir 23.3 -0.4 30.4 16th 13.5 +0.5 8.9 28th 422.2 77.1 highest 548%
Richmond RAAF 22.9 -1.0 31.3 16th 13.1 +1.6 6.4 28th 353.0 63.1 highest 559%
Springwood (Valley Heights) 21.2   29.9 16th 12.3   7.7 27th 312.0 89.5 v high 349%
Sydney (Observatory Hill) 22.7 +0.3 31.7 16th 15.3 +0.6 10.3 28th 366.8 128.6 v high 285%
Sydney Airport AMO 22.6 -0.3 32.6 16th 15.3 +1.1 10.6 28th 349.0 109.3 v high 319%
Terrey Hills AWS 21.1 -1.0 30.1 16th 13.7 0.0 8.7 28th 360.2 143.2 v high 252%

Daily maximum temperatures for April 2015
123456789101112131415161718192021222324252627282930
Badgerys Creek AWS26.128.917.319.325.724.521.621.922.321.623.022.922.923.327.330.221.127.323.415.015.818.523.125.324.020.019.721.018.918.5
Bankstown Airport AWS26.229.818.719.226.226.223.222.722.622.622.523.922.124.128.031.724.128.023.517.017.818.822.626.024.918.720.120.619.419.6
Camden Airport AWS26.728.717.619.626.524.422.622.222.821.023.422.622.823.827.331.120.426.423.615.216.218.823.725.623.520.120.421.019.919.7
Campbelltown (Mount Annan)26.428.917.419.226.324.723.221.223.121.923.322.621.823.327.830.920.227.123.915.015.718.223.825.123.619.420.321.120.719.7
Canterbury Racecourse AWS23.728.017.716.622.825.422.421.020.020.021.021.519.622.325.730.222.826.921.715.716.317.320.924.424.017.218.318.317.918.4
Holsworthy Aerodrome AWS25.829.618.419.425.725.422.922.121.821.822.522.821.323.327.831.421.127.722.316.216.918.822.525.324.018.419.619.719.0
Horsley Park Equestrian Centre AWS26.229.417.319.426.024.822.422.022.522.623.022.921.823.227.630.722.627.723.315.616.118.822.625.424.219.020.820.719.419.1
Parramatta North (Masons Drive)23.529.018.019.825.825.923.022.721.322.222.023.021.823.728.031.223.827.423.016.317.018.221.025.325.118.520.520.618.5
Penrith Lakes AWS26.729.117.720.926.224.121.723.122.821.223.624.223.624.128.031.221.927.823.814.615.819.424.026.124.420.520.321.219.919.8
Prospect Reservoir27.029.020.226.525.923.122.222.422.524.023.422.324.428.430.423.227.724.116.216.618.022.925.625.019.220.318.8
Richmond RAAF26.629.717.520.225.025.421.723.322.621.623.624.422.724.027.931.323.227.723.915.016.118.723.226.024.920.520.520.919.719.0
Springwood (Valley Heights)25.526.816.020.023.922.520.021.121.020.121.022.621.021.825.229.920.726.222.512.614.518.322.024.922.018.318.818.717.5
Sydney (Observatory Hill)25.327.919.020.125.924.923.022.322.222.422.723.522.222.424.231.723.728.622.517.217.717.923.825.125.917.120.920.918.920.9
Sydney Airport AMO27.031.019.819.723.225.724.323.020.420.321.121.520.823.326.732.625.229.421.917.218.018.821.227.924.617.518.218.618.419.4
Terrey Hills AWS24.527.217.817.723.125.422.320.819.719.520.321.720.121.525.130.121.825.821.715.616.817.620.624.723.716.517.818.317.418.1
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 2015
123456789101112131415161718192021222324252627282930
Badgerys Creek AWS15.514.716.116.114.911.911.212.112.712.114.611.512.411.510.413.318.517.315.410.912.812.312.812.310.110.39.17.28.913.3
Bankstown Airport AWS15.715.617.016.414.914.012.812.713.612.514.812.513.811.011.615.019.217.415.612.014.013.111.913.710.711.610.37.89.313.9
Camden Airport AWS13.713.816.015.812.611.410.712.612.811.713.711.511.111.29.712.218.017.513.810.812.612.811.611.58.49.66.45.36.112.6
Campbelltown (Mount Annan)14.314.216.216.012.610.710.412.511.710.313.811.410.69.79.812.918.017.013.510.712.712.611.011.28.79.98.54.95.813.3
Canterbury Racecourse AWS13.813.715.916.014.012.610.812.712.013.113.910.811.29.610.512.418.117.214.111.813.111.910.911.29.010.28.47.57.712.4
Holsworthy Aerodrome AWS14.715.216.416.214.411.911.513.412.112.014.311.511.710.110.015.118.617.515.311.413.313.211.411.910.110.410.77.713.1
Horsley Park Equestrian Centre AWS16.215.415.615.514.913.411.812.613.613.114.311.813.510.611.015.518.518.314.710.913.112.512.312.710.111.59.89.110.212.7
Parramatta North (Masons Drive)15.215.516.016.414.514.612.013.013.312.213.012.512.510.711.815.517.718.415.611.613.412.212.212.511.311.29.37.88.212.6
Penrith Lakes AWS16.415.916.516.615.613.812.814.014.513.315.412.114.414.212.214.618.518.015.911.812.712.614.413.811.111.49.28.410.213.6
Prospect Reservoir15.616.316.315.815.213.112.313.315.013.314.512.013.211.111.515.818.918.615.211.713.012.712.512.911.09.210.48.9
Richmond RAAF15.815.217.016.415.412.313.212.512.910.515.211.513.212.511.014.719.117.916.011.812.612.613.813.111.211.17.76.48.213.5
Springwood (Valley Heights)15.615.714.113.913.412.511.111.512.411.413.711.812.812.711.414.517.316.914.19.710.210.210.112.412.09.97.77.99.711.9
Sydney (Observatory Hill)17.818.517.917.715.515.815.114.215.314.715.614.814.814.515.017.719.919.718.013.614.514.114.315.014.412.712.510.310.614.0
Sydney Airport AMO17.719.017.717.515.815.515.214.615.214.715.615.015.014.515.217.019.820.217.813.914.313.614.015.414.112.512.610.610.714.8
Terrey Hills AWS16.217.616.115.914.013.613.112.013.112.514.213.513.512.313.917.118.318.715.811.012.912.413.914.112.510.410.88.79.412.7
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
Abbotsbury (Fairfield (City Farm)) 8.0 - 3.0 19.0 6.0 - 4.0 1.0 - - 3.0 - - - - 3.0 2.0 2.0 7.0 7.0 75.0 73.0 31.0 - - 12.0 - - - 3.0
Abbotsford (Blackwall Point Rd) 9.0 4.0 25.0 15.0 - - 2.0 - 6.0 - - - - 3.0 3.0 - 4.0 7.0 128 84.0 53.0 - - 30.0 9.0
Audley (Royal National Park) 7.0 1.0 - 18.0 7.0 - 3.0 - - - 6.0 1.0 - - - - 5.0 6.0 5.0 6.0 74.0 116 64.0 - - 6.0 2.0 - - 11.0
Avalon (Wollstonecraft Ave) 27.0 - 1.0 30.0 21.0 - 3.0 - - - 9.0 - - - - 2.0 5.0 - - - 13.0 82.0 8.0 - - 7.0 3.0 - 1.0 9.0
Avalon Beach (Avalon (Palmgrove Rd)) 33.4 - - - - - 64.8 1.2 - - 10.8 - - - - - 6.2 - - 17.6 94.4 97.0 13.2 - - 10.0 - - - 33.6
Badgerys Creek AWS 3.6 - 3.0 21.4 9.0 - 3.2 3.4 - - 1.6 - 0.2 - - 7.0 2.6 3.4 6.8 7.2 83.6 50.2 26.2 0.2 - 18.0 0.2 - - 2.6
Bankstown Airport AWS 9.4 - 0.6 18.8 8.8 - 1.4 0.2 - - 6.8 0.2 - - - 7.4 2.4 1.4 4.8 4.6 79.0 72.8 61.0 0.2 - 14.0 0.4 - - 5.4
Baulkham Hills Eucalyptus Ct 25.0 - 1.5 24.0 10.0 - 5.5 0.5 - - 4.5 - - - - 5.5 4.0 0.5 6.0 6.0 121 120 52.5 - - 5.5 - - - 2.5
Belrose (Evelyn Place) 12.6 - 3.6 27.8 34.0 - 2.2 8.4 - 0.4 3.0 - - - - 2.8 1.8 - 1.6 18.2 42.8 55.6 16.2 - - 12.4 4.2 - - 8.2
Berowra (Goodwyn Road) 17.2 - 1.2 38.6 23.4 - - 6.2 - - 1.4 - - - - 1.4 12.2 13.8 128 125 - 16.2 - 3.0 - - - 8.8
Box Hill (Hynds Road) 14.0 - 2.0 24.0 12.0 - 7.0 1.0 - - 2.0 - 4.0 - - 4.0 4.0 - 5.0 7.0 113 107 40.0 - - 6.0 - - - 2.0
Camden Airport AWS 1.6 0.2 10.2 21.0 6.0 0.2 1.6 8.8 - - 1.2 0.2 0.6 - - 7.4 3.4 14.2 8.2 4.8 63.6 37.6 14.4 - 0.2 8.0 - - 0.2 6.2
Campbelltown (Kentlyn (Georges River Roa 7.0 - 3.0 15.0 4.0 - 3.0 1.0 - - 1.0 2.0 - - - 6.0 4.0 12.0 8.0 4.0 80.0 77.0 12.0 - 1.0 5.0 - - - 4.0
Campbelltown (Mount Annan) 5.0 - 3.2 17.8 7.2 -


- 0.6 0.2 -
- 2.6 3.0 15.0 7.0 3.2 83.4 57.2 9.4 - - 11.0 - - - 0.2
Canterbury Racecourse AWS 18.0 1.0 1.4 21.8 11.4 - 2.4 0.2 0.2 - 4.0 - - - - 0.4 0.8 0.6 2.4 5.4 123 102 57.2 - 0.2 32.4 1.4 0.4 - 11.2
Castle Cove (Rosebridge Ave) 10.0 - 0.5 30.0 29.0 - 3.0 2.0 - - 4.0 - - - - 3.5 5.0 - 2.0 12.0 122 101 30.0 - - 10.0 4.5 - - 10.0
Castle Hill (Kathleen Ave) 30.2 - 2.2 27.6 16.8 0.2 6.4 - - - 7.2 0.4 - - - 16.8 6.6 - 5.4 7.0 143 124 49.5 - - 7.4 - - - 2.4
Chatswood Bowling Club 19.0 - 2.0 35.0 19.0 - 1.0 4.0 - - 3.0 - - - - 2.0 4.0 - 2.0 11.0 131 115 23.0 1.0 - 9.0 3.0 - - 8.0
Collaroy (Long Reef Golf Club) 12.4 - - 18.2 24.2 - 2.4 1.2 - - - - - - - 1.2 1.4 - 1.8 10.8 75.8 62.2 31.8 - - 2.6 4.2 - - 34.4
Concord (Brays Rd) 42.4 - 1.6 21.2 13.4 0.6 - 2.6 - - 5.8 - - - - 2.2 2.6 - 3.2 2.6 124 94.8 44.2 - - 21.8 1.2 - - 9.0
Concord Golf Club 90.4 - 2.2 19.6 13.8 - 1.2 1.2 - - 4.6 - - - - 2.4 2.2 0.6 3.2 6.4 136 91.6 43.4 - - 23.4



Frenchs Forest (Frenchs Forest Rd) 14.0 - 3.0 30.0 38.0 - 2.0 7.0 - - 3.0 - - - - 2.0 2.0 - 1.0 24.0 134 97.0 23.0 - - 13.0 5.0 - - 10.0
Glenorie (Old Northern Rd) 5.0
2.0 31.0 17.0
4.0 8.0



1.0

4.4 5.0
4.2 6.4 160 120 22.0

3.0


3.2
Holsworthy Aerodrome AWS 4.8 - 0.2 11.4 4.6 - 1.0 0.2 - - 2.8 - - - - 3.0 4.0 3.6 4.6 3.4 67.0 70.2 47.6 - - 8.0 - -
2.8
Horsley Park Equestrian Centre AWS 11.6 - 1.8 18.8 9.8 0.2 5.6 0.2 -
3.2 0.2 - - - 3.4 2.2 2.2 6.0 6.8 90.8 79.6 33.8 0.8 - 18.2 - - - 3.0
Lower Portland (Hawkesbury River) - - - - 0.2 - 1.2






















Lucas Heights (ANSTO) 5.2 - 0.4 11.8 3.2 - 1.8 0.6 - - 2.6 - - - - - 5.6 3.3 4.2 3.2 95.0 103 26.8 - - 4.6 0.6 - - 5.6
Marrickville Golf Club 32.0 - 1.0 21.0 13.0 1.0 1.0 1.0 - - 6.0 - - - - - 1.0 1.0 2.0 7.0 123 104 59.0 - - 21.0 2.0 - - 17.0
Milperra Bridge (Georges River) 10.0 - - 17.0 6.0 - - 1.0 - - 4.0 - - - - 5.0 2.0 1.0 4.0 4.0 59.0 58.0 52.0 - - 16.0 - - - 5.0
Mona Vale Golf Club















0.4 - 2.4 0.2 12.4 68.8 10.4 0.2 - 6.8 4.2 - 0.4 15.6
North Parramatta (Burnside Homes) 13.0 - 2.5 27.0 11.5 - 3.0 0.5 - - 4.0 - - - - 4.0 3.0 0.5 5.5 7.0 143 108 60.0 16.0 - 4.5 - - - 3.5
North Rocks (Muirfield Golf Club) 38.0 - 3.5 25.5 11.0 - 2.0 2.5 - - 3.0 - - - - 4.0 3.0 0.5 4.0 7.0 134 110 48.5 8.5 - 7.5 - - - 3.0
Parramatta North (Masons Drive) 14.0 - 2.8 27.8 14.6 - 2.8 0.8 - - 4.4 - - - - 4.4 3.4 0.8 5.6 7.0 130 109 54.0 16.5 0.2 5.0 0.4 - - 3.0
Peakhurst Golf Club 31.0 - - 16.0 9.0 - 4.0 - - - 7.0 - - - - 2.0 1.0 1.0 4.0 3.0 84.0 81.0 70.0 - - 16.0 1.0 - - 9.0
Pennant Hills (Yarrara Road) 1.2 1.0 3.2 34.0 23.0 - - 4.2 - 0.2 - - 8.4 2.0 0.2 4.2 6.0 156 123 38.2 2.6 0.2 4.6 1.0 - - 5.0
Penrith Lakes AWS 1.6 - 4.2 23.4 18.6 0.2 3.4 0.4 - - 1.2 - 1.6 - - 11.4 7.6 0.4 3.0 6.2 85.6 47.0 25.8
- 11.6 - 0.2 - 5.4
Prospect Reservoir 51.0 - 2.4 20.1 11.4 - 3.2 0.4 - - 6.8 - - - - 3.5 5.2 1.2 7.5 5.2 100 92.6 44.4 2.8 1.0 63.3 - -

Randwick (Randwick St) 8.0 - 0.8 23.0 22.0 - 0.8 2.4 - 0.6 14.0 - 0.2 - - 0.4 1.8 1.0 2.2 13.0 115 105 32.6 0.2 - 32.6 7.0 - - 18.4
Richmond RAAF 17.0 0.2 2.8 32.0 18.4 0.2 5.2 1.0 - - 0.6 - 1.2 0.2 - 21.4 6.2 - 5.6 6.2 113 69.6 43.0 0.2 - 7.6 - - - 1.0
Rose Bay (Royal Sydney Golf Club) 8.2 - 2.2 21.0 23.4 1.0 1.2 1.4 - 1.0 3.8 - - - - 0.3 1.2 0.8 2.2 16.4 86.0 97.4 20.0 0.2 - 28.0 7.3


Rossmore (South Creek) 4.0 - 3.0 22.0 5.0 - 2.0 4.0 - - 2.0 - 2.0 - - 7.0 3.0 4.0 8.0 5.0 74.0 51.0 26.0 1.0 - 13.0 - - - 4.0
Sans Souci (Public School) 18.0 - - 17.0 9.0 - 12.0 1.0 - - 20.0 1.0 - - - - 1.0 2.0 2.0 4.0 90.0 85.0 78.0 - - 10.0 3.0 - 1.0 13.0
Seven Hills (Radio FM 103.2) 14.5 - 1.5 17.0 7.5 - 4.0 0.5 - - 3.5 0.5 - - - 5.0 3.0 0.5 5.5 6.0 93.0 96.0 43.5 0.5 - 26.0 - - - 2.0
Seven Hills (Collins St) 13.6
1.6 21.0 9.6
6.8 1.2






6.0 3.4 1.4 6.8 3.4 101 88.0 78.0

12.6


2.8
Springwood (Valley Heights) 2.4 - 2.2 41.2 36.6 - 3.8 0.2 - - 1.0 - 0.8 - - 19.4 10.6 0.6 3.8 11.2 88.2 48.8 31.6 - - 2.6 - - - 7.0
St Ives (Richmond Avenue) 5.0
4.6 27.2
2.8 7.8
0.8 2.8



5.0 3.2

150 121 15.0 0.4
6.4 3.0

8.0
Strathfield Golf Club 22.0 - 1.0 18.0 9.0 - 3.0 - - - 6.0 - - - - 2.0 2.0 - 3.0 6.0 109 108 54.0 - - 32.0 1.0 - - 11.0
Sydney (Observatory Hill) 6.0 - 0.6 24.0 21.4 - 0.4 5.8 0.2 0.4 7.8 0.2 - - - 0.6 1.6 0.4 2.4 13.2 119 106 29.0 - 0.2 13.0 4.0 0.2 - 10.2
Sydney Airport AMO 21.6 - 0.4 17.2 12.8 - 2.6 0.2 - 0.2 6.8 - - - - - 1.6 1.0 1.8 6.0 94.0 78.4 69.4 - - 8.6 3.8 - 0.4 22.2
Sydney Botanic Gardens 4.6 0.1 0.2 26.0 21.6 - 0.6 2.6 - 0.8 6.6 - - - - 0.8 2.0 1.0 2.8 17.0 126 118 29.2 - - 30.4 5.2 - - 10.2
Terrey Hills AWS 12.0 - 0.6 33.4 42.4 0.2 2.6 3.0 - 0.2 2.2 - 0.2 - - 1.4 2.2 - 2.0 12.4 115 95.6 14.6 0.2 - 5.0 3.4 - - 12.0
Turramurra (Kissing Point Road) 4.0 0.2 3.2 40.0 25.0
2.4 2.6

3.6



6.2 3.0 0.2 3.0 10.6 167 127 25.6

3.8 2.0

8.0
Willmot (Resolution Ave) 3.0 - 19.0 20.0 7.0 - 1.0 1.0 - - 2.0 - 4.0 - - 6.0 7.0 2.0 3.0 6.0 84.0 70.0 25.0 - 1.0 18.0 - - - 1.0
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

A Monthly Climate Summary is prepared to list 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, 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