NSW in April 2013: A return to dry weather for inland NSW

  • Little to no rainfall in most of NSW west of the divide; driest April since 2005
  • Low pressure system produces heavy rain on the south coast.
  • Warm days, cool nights

Rainfall - Little rain in inland NSW, heavy rain on the south coast

NSW recorded a statewide average rainfall of 15.0 mm during April, well below the historical average of 46.7 mm and the driest April since 2005. Much of inland NSW recorded no rainfall at all during the month, with close to 60% of the state recording less than 5 mm and an average rainfall of 9.0 mm in the Murray-Darling Basin (historical average 38.1 mm).

Rainfall was closer to normal east of the Great Dividing Range, with above average totals on parts of the coastal strip. Coastal showers were common during the first half of the month, with Coffs Harbour recording rain on 13 of the first 14 days of April. Heavier falls were recorded on the south coast on the 1st, reaching 122 mm at Jervis Bay, with persistent coastal rain during a period of easterly flow between the 3rd and 5th and three-day totals as high as 137.4 mm at Sydney Botanic Gardens.

A coastal low pressure system on the 20th also produced rainfall along the southern half of the coast, with widespread falls greater than 25 mm recorded to 9am on the 20th and 21st. Falls were heaviest in the Shoalhaven region, with daily totals reaching 160.9 mm at Narooma on the 20th, the wettest April day on record, and 48-hour totals to 9am on the 21st of 226.2 mm at Ulladulla.

See a list of April rainfall records.

Temperature - Warm days and cool nights

NSW recorded a statewide average maximum temperature of 25.3 °C during April, 1.2 °C above the historical average and the warmest April since 2007. The warm conditions were associated with generally dry, clear weather during the month, with most of inland NSW more than 1 °C above average but closer to normal temperature along the coast.

A persistent warm spell affected southwest NSW between the 7th and 14th, with eight consecutive days above 30 °C at Broken Hill, the latest such spell on record (previous record 28 March - 6 April 1962). Temperatures were also unseasonably warm at the end of the month, reaching 32.2 °C at Menindee, one of the latest days on record so warm.

In contrast, minimum temperatures were generally cooler than normal during April, with a statewide average of 10.6 °C, 0.5 °C below the historical average. Nights were coolest in northern inland NSW, with milder nights on the southern border. The mean temperature for April was consequently 17.9 °C, 0.3 °C above the historical average.

A cool spell impacted the state on the 19th and 20th, with maximum temperatures dropping to -0.3 °C at Thredbo. Snow was reported at Thredbo Village for the first time in 2013, with 3 cm of snow reported at Perisher. The cool temperatures were associated with a coastal low pressure system, which produced heavy rain and damaging surf along the south coast and wind gusts of up to 106 km/h at Montague Island.

See a list of April temperature records.

Further information

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Extremes in April 2013
Hottest day 34.5 °C at Wilcannia (Reid St) on the 14th
Warmest days on average 29.3 °C at Mungindi Post Office
Coolest days on average 8.6 °C at Thredbo AWS
Coldest day -0.3 °C at Thredbo AWS on the 19th
Coldest night -6.0 °C at Woolbrook (Danglemah Road) on the 26th
Coolest nights on average 1.5 °C at Perisher Valley AWS
Warmest nights on average 17.9 °C at Norfolk Island Aero
17.5 °C at Byron Bay (Cape Byron AWS)
Warmest night 22.3 °C at Tibooburra Airport on the 15th
Warmest on average overall 21.3 °C at Tibooburra Airport
Coolest on average overall 5.1 °C at Thredbo AWS
Wettest overall 349.6 mm at Ulladulla AWS
Wettest day 160.9 mm at Narooma (Marine Rescue) on the 20th
Highest wind gust 106 km/h at Montague Island Lighthouse on the 19th

Maps
ObservedAnomalyDecile rank
Total
rainfall
Map of Rainfall totals Map of Percentage of normal rainfall Map of Rainfall deciles
Mean
daily
maximum
temperatures
Map of Mean maximum temperature Map of Anomaly in mean maximum temperature Map of Decile rank of mean maximum temperature
Mean
daily
minimum
temperatures
Map of Mean minimum temperature Map of Anomaly in mean minimum temperature Map of Decile rank of mean minimum temperature

Click on a map to show it full size in a pop-up window


Record highest April daily rainfall
Highest daily rainfall
in April 2013 (mm)
Previous wettest
for April
Years of
record
Narooma (Marine Rescue) 160.9 on the 20th 124.5 on the 16th in 1914 89


Record lowest total April rainfall
Total rainfall
for April 2013 (mm)
Previous driest
for April
Years of
record
Average for
April
Brewarrina Hospital 0.0 = 0.0 in 2008 140 29.1
Coonabarabran (Namoi Street) 0.0 = 0.0 in 1967 135 52.2
Collarenebri (Albert St) 0.0 = 0.0 in 2005 128 34.7
Pooncarie (Karpa Kora Station) 0.0 = 0.0 in 2001 127 16.3
Wanaaring Post Office 0.0 = 0.0 in 2012 127 15.6
Dunedoo Post Office 0.0 = 0.0 in 2005 102 40.8
Trangie Research Station AWS 0.0 = 0.0 in 1987 86 39.2
Gunnedah Resource Centre 0.0 = 0.0 in 2005 66 38.5
Nyngan (Fairview) 0.0 = 0.0 in 2012 61 39.0
Cobar MO 0.0 = 0.0 in 1977 51 25.7
Rowena Post Office 0.0 = 0.0 in 2005 45 33.4
Walgett Airport AWS 0.2 0.8 in 2005 20 20.5

Record lowest April daily maximum temperature
Lowest daily maximum
temperature
in April 2013 (°C)
Previous coolest
for April
Years of
record
Average for
April
Cessnock Airport AWS 15.9 on the 20th 16.5 on the 28th in 2008 22 24.1


Record lowest April mean daily minimum temperature
Mean daily minimum
temperature
for April 2013 (°C)
Previous coolest
for April
Years of
record
Average for
April
Lord Howe Island Aero 16.8 16.9 in 1997 24 18.1


Summary statistics for April 2013
Maximum temperatures
for April
(°C)
Minimum temperatures
for April
(°C)
Rainfall
for April
(millimetres)
Mean for
April
2013
Diff
from
average
Highest for
April
2013
Mean for
April
2013
Diff
from
average
Lowest for
April
2013
Total for
April
2013
Average
for
April
Rank of
April
2013
Fraction of
April
average
Western (Far Northwest) (district 46)
Fowlers Gap AWS 27.4   32.9 14th 11.6   4.3 20th 1.4
Tibooburra Airport 28.4   32.6 14th 14.3   6.3 20th 0
Tibooburra Post Office 28.4 +1.4 32.7 14th 13.4 -0.5 6.5 20th 0.2 14.4 average 1%
White Cliffs AWS 27.6   33.0 14th 13.2   4.8 20th 1.0
Wilcannia (Reid St) 28.0 +1.8 34.5 14th 10.5 -1.2 4.1 20th 0.6 17.0 low 4%
Wilcannia Aerodrome AWS 27.8   34.0 14th 10.1   1.3 20th 0.6
Western (Lower Darling) (district 47)
Broken Hill (Patton Street) 26.4 +2.5 32.3 14th 13.2 +1.4 6.5 20th 15.2 17.2 average 88%
Broken Hill Airport AWS 25.8 +1.5 32.1 14th 11.2 0.0 4.5 20th 7.6 19.7 average 39%
Lake Victoria Storage 25.1 +1.6 33.0 13th 10.8 +0.3 4.3 20th 9.2 18.1 average 51%
Menindee Post Office 28.1 +2.5 33.3 14th     4.8 22nd 2.4 16.0 low 15%
Pooncarie Mail Agency 27.3   34.4 12th 10.9   4.5 20th 1.1 17.5 low 6%
Western (Upper Darling) (district 48)
Bourke Airport AWS 28.7   33.8 15th 11.0   5.1 26th 0.6
Brewarrina Hospital 28.1 +0.6 32.7 15th 11.4 -1.2 5.3 20th 0 29.1 lowest 0%
Cobar Airport AWS 26.7   31.6 14th 9.8   3.2 20th 0
Cobar MO 26.3 +1.1 31.1 14th 12.6 -0.2 6.6 20th 0 25.7 lowest 0%
Collarenebri (Albert St) 28.3 +0.7 31.9 15th 11.2 -1.3 5.0 26th 0 34.7 lowest 0%
Lightning Ridge Visitors Information Cen 28.2   32.0 15th 12.5   6.6 20th 0
Wanaaring Post Office 28.7 +0.8 33.3 30th 10.9 -1.9 4.8 21st 0 15.6 lowest 0%
Western (Southwest Plains) (district 49)
Balranald (RSL) 25.3 +1.3 31.9 13th 10.4 +0.8 2.7 20th 7.4 23.2 low 32%
Ivanhoe Aerodrome AWS 26.7   33.9 14th 11.5   3.5 20th 0.8
Central Western Plains (South) (district 50)
Condobolin Ag Research Stn 26.1 +1.5 32.0 14th 9.1 -0.8 2.6 25th 0.3 30.6 v low 1%
Condobolin Airport AWS 26.5   32.2 14th 9.0   2.7 25th 0.4
Peak Hill Post Office 26.1 +1.0 30.5 14th 11.8 -0.4 3.8 25th 13.4 41.8 average 32%
West Wyalong Airport AWS 24.9   31.4 14th 8.9   3.4 21st 2.0
Central Western Plains (North) (district 51)
Coonamble Airport AWS 26.5   31.1 15th 9.7   5.2 26th 0.2
Nyngan Airport 27.2 +1.6 31.6 29th 11.2 -0.6 5.9 25th 0.4 34.5 low 1%
Trangie Research Station AWS 26.5 +2.1 30.9 15th 10.8 -0.4 5.0 25th 0 39.2 lowest 0%
Northwest Plains (West) (district 52)
Mungindi Post Office 29.3 +1.7 32.1 15th 11.6 -1.2 6.4 29th 2.8 30.8 low 9%
Walgett Airport AWS 27.6   31.3 15th 10.2   5.1 26th 0.2 20.5 lowest 1%
Northwest Plains (East) (district 53)
Moree Aero 27.4   29.9 16th 11.1   4.3 20th 9.6
Northwest Slopes (North) (district 54)
Barraba Post Office 25.9 +0.9 28.3 2nd 6.4 -1.5 0.0 26th 8.6 39.4 low 22%
Narrabri Airport AWS 26.8   29.4 15th 9.6   1.9 20th 0
Northwest Slopes (South) (district 55)
Gunnedah Airport AWS 26.7   30.1 15th 7.8   1.1 20th 0
Gunnedah Resource Centre 25.9 +0.7 29.7 15th 11.6 -1.2 6.1 20th 0 38.5 lowest 0%
Quirindi Post Office 26.0 +1.1 29.0 15th 7.3 -1.6 2.0 20th 2.0 41.6 v low 5%
Tamworth Airport AWS 26.1 +0.8 28.8 15th 7.6 -2.3 1.1 25th 0.4 25.4 low 2%
Woolbrook (Danglemah Road) 21.6 +0.4 25.0 30th 3.0 -2.5 -6.0 26th 16.0 41.1 low 39%
Northern Tablelands (West) (district 56)
Armidale (Tree Group Nursery) 20.7   24.4 29th 4.6   -2.2 20th 6.6
Armidale Airport AWS 20.0   23.7 29th 6.8   0.7 20th 3.2
Glen Innes Airport AWS 20.8   24.2 29th 4.4   -4.9 20th 31.4
Guyra Hospital 18.7 +0.8 22.7 30th 6.3 -0.5 -1.6 20th 13.2 50.9 low 26%
Inverell Research Centre 23.9 +0.4 25.8 30th 9.4 -1.6 2.6 20th 23.6 39.9 average 59%
Tenterfield (Federation Park) 20.9 -0.9 23.6 23rd 6.9 -1.6 0.2 20th 73.0 47.1 high 155%
Northern Tablelands (East) (district 57)
Tabulam (Muirne) 21.9 -0.2 25.2 23rd 13.0 -0.5 10.2 20th 70.8 101.9 average 69%
Upper North Coast (district 58)
Ballina Airport AWS 25.3 +0.5 29.0 16th 15.1 -0.1 11.6 29th 196.2 190.5 average 103%
Byron Bay (Cape Byron AWS) 24.1   27.1 16th 17.5   14.5 21st 177.0
Casino Airport AWS 25.8   28.9 16th 14.3   10.9 23rd 168.8
Evans Head RAAF Bombing Range AWS 25.1   28.3 25th 15.9   13.3 28th 245.0
Grafton Airport AWS 25.5   27.8 23rd 13.1   8.5 20th 86.4
Grafton Olympic Pool 25.6 -0.6 28.4 18th 14.7 -0.2 10.9 20th 81.6 88.9 average 92%
Grafton Research Stn 25.4   28.6 18th 14.5   11.2 20th 61.0 80.5 average 76%
Lismore (Richmond Hill) 25.4   28.3 18th 14.8   12.1 21st 156.4
Lismore Airport AWS 25.8   28.7 16th 13.7   10.1 23rd 126.0
Murwillumbah (Bray Park) 25.8 -0.3 29.5 18th 15.6 +0.1 11.8 21st 107.6 160.9 average 67%
Yamba Pilot Station 24.7 +0.4 27.3 22nd 16.4 -0.1 14.0 20th 173.0 163.3 average 106%
Lower North Coast (district 59)
Coffs Harbour MO 24.1 +0.1 26.9 29th 14.4 -0.8 7.7 20th 168.0 179.0 average 94%
Dorrigo (Old Coramba Rd) 19.7   23.4 28th 9.7   3.8 20th 90.6
Kempsey (Wide Street) 25.6 +0.1 29.5 29th 13.5 +0.3 8.7 20th 96.7 115.9 average 83%
Kempsey Airport AWS 25.2   28.3 29th 12.0   6.2 20th 68.2
South West Rocks (Smoky Cape Lighthouse) 25.2 +1.2 27.6 18th 16.4 -0.2 13.4 21st 189.2 172.3 average 110%
Manning (district 60)
Forster - Tuncurry Marine Rescue 24.0   27.5 29th 14.6   11.5 26th 118.0 128.8 average 92%
Port Macquarie Airport AWS 24.3   27.8 29th 13.7   10.2 27th 165.8
Taree Airport AWS 24.1   29.1 29th 12.4   7.1 27th 74.2
Yarras (Mount Seaview) 24.2 -0.2 28.0 29th 11.8 -0.7 7.8 27th 201.0 143.3 high 140%
Hunter (district 61)
Cessnock Airport AWS 24.4 +0.3 30.1 15th 9.4 -0.9 4.8 26th 48.8 49.0 average 100%
Cooranbong (Lake Macquarie AWS) 23.9   29.3 15th 10.5   5.8 26th 110.0
Gosford (Narara Research Station) AWS 23.5 -0.1 28.1 14th 11.3 -0.6 6.7 26th 208.4 139.4 high 149%
Maitland Visitors Centre 25.2   29.9 15th     7.2 28th 66.5
Mangrove Mountain AWS 22.3   27.7 29th 11.3   7.4 25th 145.4
Merriwa (Roscommon) 24.6   29.7 29th 7.9   1.9 21st 1.0 32.5 low 3%
Murrurundi Gap AWS 21.2   26.3 29th 10.8   7.1 20th 4.2
Murrurundi Post Office 23.6 -0.1 28.3 29th 6.4 -2.1 1.2 25th 2.4 52.4 v low 5%
Nelson Bay (Nelson Head) 23.3 -0.3 27.5 28th 16.2 +1.3 13.0 21st 212.2 127.7 high 166%
Newcastle Nobbys Signal Station AWS 23.3 +0.5 28.1 28th 15.4 +0.1 12.0 25th 103.8 115.9 average 90%
Norah Head AWS 23.4   27.7 28th 15.5   12.2 21st 99.6
Paterson (Tocal AWS) 24.8 +0.6 29.1 29th 11.4 -1.1 7.0 27th 72.0 80.0 average 90%
Scone Airport AWS 25.2 +0.8 30.4 15th 8.2 -1.7 2.4 26th 3.2
Singleton STP 24.6   30.1 15th 8.8   4.2 27th 35.3
Williamtown RAAF 23.8 +0.2 28.5 28th 12.0 -1.2 8.7 26th 121.4 107.6 average 113%
Central Tablelands (North) (district 62)
Gulgong Post Office 24.7 +1.3 29.9 15th 7.6 -2.2 2.9 25th 1.2 43.9 v low 3%
Mudgee Airport AWS 23.8 +1.0 28.9 15th 6.0 -1.6 -0.2 25th 1.8
Central Tablelands (South) (district 63)
Bathurst Agricultural Station 22.1 +2.0 27.0 14th 5.1 -1.6 0.5 24th 15.6 41.3 low 38%
Bathurst Airport AWS 21.7 +1.1 26.9 15th 4.9 -1.3 -0.7 25th 16.6
Katoomba (Murri St) 18.4 +1.7 24.4 29th 9.4 +0.7 3.8 21st 71.4 121.5 average 59%
Lithgow (Cooerwull) 19.0   24.1 27th 5.4   -1.1 25th 28.1 57.6 low 49%
Mount Boyce AWS 17.5 +0.5 23.1 14th 8.5 -0.1 3.9 25th 46.0
Oberon (Springbank) 18.5 +1.4 23.2 14th 4.8 -0.5 -1.3 25th 21.9 57.1 low 38%
Orange Agricultural Institute 19.3 +0.9 23.8 14th 6.9 -0.3 1.0 25th 21.4 51.4 average 42%
Orange Airport AWS 19.0   23.3 14th 4.5   -1.8 25th 16.6
Springwood (Valley Heights) 22.2   27.5 28th 12.2   8.2 21st 92.6 88.1 average 105%
Central Western Slopes (North) (district 64)
Coonabarabran (Namoi Street) 24.6 +0.7 28.4 15th 4.6 -2.5 0.0 20th 0 52.2 lowest 0%
Coonabarabran Airport AWS 23.2   27.2 15th 11.4   4.9 20th 0.2
Dunedoo Post Office 25.4 +1.2 30.2 15th 8.7 -1.1 2.2 25th 0 40.8 lowest 0%
Central Western Slopes (South) (district 65)
Cowra Airport AWS 24.7   29.5 14th 7.2   1.2 25th 0.8
Dubbo Airport AWS 26.1 +1.5 31.2 15th 8.9 -1.2 2.8 26th 0.4
Forbes Airport AWS 25.6   31.0 14th 8.6   2.2 25th 0
Parkes Airport AWS 25.2   29.8 14th 8.1   0.5 25th 1.6 30.4 v low 5%
Wellington (Agrowplow) 25.3 +0.8 29.1 15th 8.0 -1.4 1.8 25th 6.2 45.0 low 14%
Metropolitan (East) (district 66)
Bankstown Airport AWS 24.1 +0.5 29.4 14th 12.2 -0.5 7.1 26th 77.2 84.8 average 91%
Canterbury Racecourse AWS 23.4   28.9 14th 12.0   6.7 26th 140.2
Holsworthy Aerodrome AWS 23.9   29.5 14th 11.7   7.5 23rd 83.4
Holsworthy Control Range 23.7   29.0 14th 11.3   6.0 23rd 72.4
Parramatta North (Masons Drive) 23.8 0.0 28.5 14th 12.0 -0.8 7.6 25th 69.2 89.3 average 77%
Sydney (Observatory Hill) 24.0 +1.6 28.7 28th 14.9 +0.2 10.9 21st 199.8 127.2 high 157%
Sydney Airport AMO 23.5 +0.6 29.3 28th 14.8 +0.6 10.7 21st 155.4 106.9 high 145%
Sydney Harbour (Wedding Cake West) 22.5   27.7 28th 16.0   12.5 21st
Sydney Olympic Park AWS (Archery Centre) 24.0   28.4 14th 13.1   9.4 21st 65.6
Terrey Hills AWS 22.7   26.7 14th 13.4   10.2 21st 171.4
Metropolitan (West) (district 67)
Badgerys Creek AWS 24.0   29.3 14th 11.1   6.4 26th 79.6
Horsley Park Equestrian Centre AWS 23.9   29.2 14th 12.1   7.8 23rd 57.8
Penrith Lakes AWS 24.6   30.0 14th 12.4   8.0 26th 60.2
Prospect Reservoir 24.2 +0.6 29.8 14th 12.3 -0.7 8.4 24th 63.7 74.7 average 85%
Richmond RAAF 24.3   29.3 14th 10.6   4.8 26th 49.0
Illawarra (district 68)
Albion Park (Wollongong Airport) 23.1   28.9 28th 11.3   7.4 24th 104.8
Bellambi AWS 22.2   28.7 28th 15.4   11.3 19th 175.6
Bowral (Parry Drive) 19.0 -0.3 24.6 14th 9.0 +0.9 4.5 25th 57.4 76.4 average 75%
Camden Airport AWS 24.2 +0.4 30.1 14th 10.1 -0.9 4.9 24th 64.2 66.9 average 96%
Campbelltown (Mount Annan) 24.2   30.4 14th 10.5   5.9 23rd 55.0
Jervis Bay (Point Perpendicular AWS) 21.6   27.7 14th 14.9   10.8 25th 342.8
Kiama (Bombo Headland) 22.3   28.9 28th 15.0   11.5 19th 183.6
Moss Vale AWS 18.9   25.4 14th 7.9   2.9 24th 56.8
Nowra RAN Air Station AWS 22.7   30.1 14th 11.9   8.2 21st 117.2
Port Kembla NTC AWS 21.7   28.2 28th 16.1   12.9 21st
South Coast (district 69)
Batemans Bay (Catalina Country Club) 22.2 0.0 26.9 13th 10.4 -0.1 5.7 21st 64.8 66.6 average 97%
Bega AWS 23.1 +0.9 28.9 13th 9.2 -0.2 3.9 21st 36.2
Braidwood Racecourse AWS 19.8 +0.4 25.1 14th 5.1 -0.6 -2.3 24th 30.2 41.0 average 74%
Green Cape AWS 21.0   24.3 9th 14.3   11.0 21st 32.4
Merimbula Airport AWS 22.0   26.2 28th 10.9   6.4 24th 49.6
Montague Island Lighthouse 20.7 +0.3 24.2 14th 15.5 +0.4 10.4 19th 133.4 80.6 high 166%
Moruya Airport AWS 22.1   27.8 14th 11.4   6.6 26th 91.6
Moruya Heads Pilot Station 21.5 -0.1 26.0 28th 12.9 +0.6 9.1 21st 102.0 86.7 high 118%
Narooma (Marine Rescue) 21.5 +0.5 24.8 14th 13.2 +0.3 9.5 19th 193.5 80.6 v high 240%
Ulladulla AWS 21.5 +0.1 27.6 28th 14.2 +0.4 10.6 21st 349.6
Southern Tablelands (Goulburn-Monaro) (district 70)
Bombala (Therry Street) 19.2 +0.7 24.6 12th 5.1 -0.1 -0.7 25th 40.8 44.9 average 91%
Bombala AWS 18.2 +0.4 24.7 12th 4.7 -0.6 0.4 21st 54.4
Canberra Airport 22.1   26.9 14th 5.5   -1.9 24th 9.8
Cooma Airport AWS 18.7 +0.6 23.4 27th 3.4 -0.1 -3.4 24th 25.4 37.7 average 67%
Cooma Visitors Centre 20.2 +0.7 24.4 14th 3.8 -0.2 -2.8 24th 22.7 38.0 average 60%
Goulburn Airport AWS 20.8 +1.0 27.4 14th 5.0 -0.5 -2.9 24th 15.0
Goulburn TAFE 20.7 +0.7 27.0 14th 8.0 +0.3 0.3 21st 20.2 44.4 average 45%
Mount Ginini AWS 11.8   17.1 14th 3.9   -1.6 19th 30.4
Taralga Post Office 19.4 +0.8 25.4 14th 5.1 -1.1 -1.0 24th 16.3 58.6 low 28%
Tuggeranong (Isabella Plains) AWS 21.8   27.6 14th 6.0   -0.9 24th 15.2
Southern Tablelands (Snowy Mountains) (district 71)
Perisher Valley AWS 10.7   15.4 11th 1.5   -4.0 21st 53.8
Thredbo AWS 8.6 -0.7 13.1 9th 1.7 +0.2 -3.5 19th 50.6 96.5 low 52%
Thredbo Village 13.4 -0.4 18.2 9th 2.9 +1.4 -3.0 24th 45.7 108.1 low 42%
Southwest Slopes (South) (district 72)
Albury Airport AWS 23.0   28.2 12th 8.9   2.6 20th 12.2
Cabramurra SMHEA AWS 12.5   16.5 12th 5.8   0.0 19th 24.2
Hume Reservoir 22.3 +0.6 27.3 12th 10.6 +0.6 4.3 20th 17.4 51.2 low 34%
Khancoban AWS 21.0   25.0 12th 7.4   1.9 25th 16.2
Tumbarumba Post Office 20.4 +0.5 25.0 14th 5.6 +0.7 -1.0 21st 19.3 65.4 low 30%
Wagga Wagga AMO 24.1 +1.6 29.8 14th 9.3 +0.2 1.6 25th 7.0 40.1 v low 17%
Southwest Slopes (North) (district 73)
Burrinjuck Dam 23.6 +2.6 28.5 14th 9.2 -0.3 3.5 25th 11.3 64.6 low 17%
Cootamundra Airport 23.5   29.6 14th 6.5   -0.3 25th 4.4
Grenfell (Manganese Rd) 23.9 +1.3 29.5 14th 7.4 -1.9 1.8 25th 6.0 46.6 v low 13%
Gundagai (William St) 23.7   29.6 14th 8.2   2.1 25th 9.0
Quandialla Post Office 25.5 +1.4 31.6 14th 9.6 0.0 2.0 25th 5.4 41.0 v low 13%
Temora Airport 24.9   32.1 14th 7.6   0.5 25th 2.0
Wyalong Post Office 25.1 +1.5 31.0 14th 10.6 +0.6 4.3 25th 2.2 35.0 v low 6%
Young Airport 23.7 +1.0 29.4 14th 5.6 -0.8 -1.2 25th 12.2
Riverina (East) (district 74)
Corowa Airport 23.6 +1.1 29.0 12th 9.4 +0.8 3.0 20th 9.2 36.3 low 25%
Deniliquin Airport AWS 24.3   30.8 14th 10.3   2.9 20th 2.6
Narrandera Airport 25.2   32.3 14th 10.0   3.6 24th 4.2 33.7 v low 12%
Narrandera Golf Club 24.6 +1.2 31.5 14th     1.0 29th 4.5 37.7 v low 12%
Tocumwal Airport 23.8 +0.8 30.0 14th 10.0 +0.3 5.8 30th 4.7 31.7 low 15%
Yanco Agricultural Institute 24.9   31.4 14th 11.7   5.8 19th 6.8 29.3 low 23%
Riverina (West) (district 75)
Griffith Airport AWS 24.6 +0.6 31.8 14th 9.2 -0.9 3.5 20th 1.6 27.4 v low 6%
Hay (Miller Street) 25.8 +1.7 32.5 14th 10.9 +1.0 3.2 20th 7.8 27.8 low 28%
Hay Airport AWS 26.2   33.9 14th 9.7   1.9 20th 6.6
Offshore Islands (district 200)
Lord Howe Island Aero 23.5 +0.3 24.9 17th 16.8 -1.3 13.1 8th 100.4 133.9 average 75%
Norfolk Island Aero 22.8 +0.1 24.9 2nd 17.9 +0.1 16.0 23rd 116.2 124.5 average 93%

Notes

A Monthly Climate Summary is prepared to list the main features of the weather in New South Wales 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.

This statement has been prepared based on information available at 1 pm on Wednesday 1 May 2013. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

Averages 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 20 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.

Further information

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