New South Wales in July 2020: heavy rain along the coast

Two low pressure systems in the Tasman Sea brought heavy rain, flash flooding and high seas to the coast this month. In contrast, persistent anticyclones meant that the Riverina and far west continued to see drier than usual conditions. Maximum temperatures were average to above-average across the state.

Heavy rain from two lows

  • Two low pressure systems in the Tasman Sea during July brought heavy rain, isolated flash flooding and high seas along the state's coast.
  • A trough off the coast deepened into a low pressure system on the 13th, that brought over 100 mm to the South Coast district over 13–14 July, with local flooding.
  • The mid-month rain eased short-term deficiencies, since April 2020, that were developing in parts of the South Coast district.
  • From the 14th, the system created a powerful sea swell, with wave heights of 5 to 6 m, leading to significant coastal erosion, notably at Wamberal.
  • The second low formed off the Queensland coast, before deepening and moving south over 26–28 July.
  • The second low was more intense than the first, with many sites in the Illawarra and South Coast districts recording their highest July daily rainfall on record.
  • The highest daily total was 223.6 mm at Sanctuary Point on the 28th.
  • Flash flooding was reported in several areas, including Newcastle and in the South Coast district.
  • As a result of the two lows, the South Coast District received over 400% of its historical July average.
  • Many coastal sites had their highest total July rainfall on record while several long-term sites including Bega, Cobargo and Bombala, had their highest total July rainfall since 1922.
  • For the state as a whole July rainfall was 10% above the historical average, the wettest July since 2016.
  • Much of the Riverina and far west of the state was drier than usual, as has been the case for most winter months since 2017.

Above average daytime temperatures

  • Daytime maximum temperatures were average to above-average across the state during July.
  • For the state as a whole, the mean maximum temperature was 0.96 °C above average, the coolest since 2016 after several very warm years.
  • Mean minimum temperatures were generally above the July average along the coast, but below average in the far west.
  • Over inland areas of the state, weather conditions were influenced by the southward extent of the sub-tropical ridge, with clear skies bringing warm days, cool nights and drier than usual conditions.
  • Climate models indicate that the weather patterns influencing inland New South Wales so far this winter are consistent with increasing greenhouse gases in the global atmosphere.
  • In contrast, cloudy conditions along the coast meant that some sites had their highest July mean daily minimum temperature on record or for at least 20 years.

Snow then rain in the Alps

  • The low pressure system over 13–14 July brought snow to alpine regions, with ski resorts reporting falls of over 1 metre.
  • However, subsequent rain has reduced the snow cover, with Snowy Hydro reporting no snow at Deep Creek or Three Mile Dam, while at Spencers Creek the 70.2 cm of snow as of 29 July is the lowest since 2013 for this time of year.

Further information

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Extremes in July 2020
Hottest day 26.6 °C at Wanaaring Post Office on the 1st
Warmest days on average 21.2 °C at Murwillumbah (Bray Park)
Coolest days on average 1.4 °C at Thredbo AWS
Coldest day -2.9 °C at Thredbo AWS on the 3rd
Coldest night -8.0 °C at Armidale (Tree Group Nursery) on the 21st
Coolest nights on average -3.6 °C at Perisher Valley AWS
Warmest nights on average 12.9 °C at Byron Bay (Cape Byron AWS)
Warmest night 16.9 °C at Byron Bay (Cape Byron AWS) on the 12th
Warmest on average overall 15.9 °C at Byron Bay (Cape Byron AWS)
Coolest on average overall -1.0 °C at Thredbo AWS
Wettest overall 446.0 mm at Sanctuary Point (Salinas Street)
Wettest day 223.6 mm at Sanctuary Point (Salinas Street) on the 28th
Strongest wind gust 122 km/h at Thredbo AWS on the 1st and the 2nd

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 July daily rainfall
New record
(mm)
Old
record
Years of
record
Eumungerie Post Office 68.4 on the 11th 43.6 on the 31st in 2010 77
Bendalong STP 208.2 on the 28th 118.9 on the 16th in 1969 76
Elderslie 64.0 on the 27th 59.0 on the 15th in 1999 75
Nelligen (Thule Road) 183.0 on the 27th 138.4 on the 27th in 1922 73
Williamtown RAAF 133.0 on the 27th 72.9 on the 19th in 1965 67
Montague Island Lighthouse 75.2 on the 13th 72.4 on the 22nd in 1959 64
Culburra Treatment Works 160.6 on the 28th 150.2 on the 1st in 1976 56
Kars Springs (Welldun) 43.4 on the 27th 42.6 on the 27th in 1984 38
Audley (Royal National Park) 108.0 on the 27th 90.0 on the 22nd in 2011 37
Swansea (Catherine St) 172.4 on the 27th 100.0 on the 6th in 1988 33
Cessnock Airport AWS 55.2 on the 27th 55.0 on the 15th in 1999 32
Putty Tea Rooms 56.2 on the 27th 30.0 on the 29th in 2010 32
Box Hill (McCall Gardens) 82.0 on the 27th 44.0 on the 14th in 1999 28
Walgett Airport AWS 29.4 on the 11th 27.6 on the 28th in 2010 28
Green Cape AWS 45.4 on the 14th 45.0 on the 9th in 2007 27
Mangrove Mountain AWS 136.2 on the 27th 72.0 on the 22nd in 2011 27
Mount Boyce AWS 76.2 on the 27th 47.0 on the 1st in 2005 27
Nullo Mountain AWS 70.4 on the 27th 53.4 on the 20th in 2016 27
Richmond RAAF 74.0 on the 27th 48.6 on the 28th in 1996 27
Ulladulla AWS 163.4 on the 28th 82.2 on the 17th in 2015 27
Howes Valley (Putty Rd) 88.0 on the 27th 31.5 on the 18th in 1965 26
Badgerys Creek AWS 52.8 on the 27th 28.4 on the 22nd in 2011 25
Penrith Lakes AWS 70.0 on the 27th 47.0 on the 14th in 1999 25
Bellambi AWS 110.0 on the 27th 82.6 on the 22nd in 2011 24
Horsley Park Equestrian Centre AWS 96.8 on the 27th 75.0 on the 14th in 1999 23
Newcastle University 152.2 on the 27th 56.8 on the 22nd in 2011 22
Blackheath (Wombat Street) 94.0 on the 27th 51.0 on the 1st in 2005 21
Concord (Brays Rd) 82.4 on the 27th 70.6 on the 22nd in 2011 21
Moruya Airport AWS 116.0 on the 27th 77.0 on the 1st in 2005 21
Sanctuary Point (Salinas Street) 223.6 on the 28th 108.6 on the 1st in 2005 21
Abbotsbury (Fairfield (City Farm)) 72.0 on the 27th 40.0 on the 22nd in 2011 20
Baulkham Hills Eucalyptus Ct 103.0 on the 27th 43.0 on the 22nd in 2011 20
Boat Harbour (Rous River) 71.0 on the 26th 41.0 on the 2nd in 2013 20
Dora Creek (Dora St) 139.4 on the 27th 99.1 on the 14th in 1912 20
Gilgandra (Rosewood) 48.2 on the 11th 31.2 on the 11th in 2012 20
Grafton Airport AWS 41.0 on the 26th 33.2 on the 15th in 1999 20
Hampden Bridge (Kangaroo River) 79.0 on the 27th 63.0 on the 11th in 2001 20
Howes Valley (Commission Rd) 63.0 on the 27th 29.0 on the 15th in 2008 20
Moruya (Burra Creek) 137.0 on the 27th 82.0 on the 1st in 2005 20
Moruya (Plumwood) 172.0 on the 28th 103.0 on the 1st in 2005 20
Moss Vale AWS 70.0 on the 28th 61.6 on the 1st in 2005 20
North Murwillumbah (Tweed River) 68.0 on the 26th 41.0 on the 2nd in 2013 20
North Parramatta (Burnside Homes) 90.0 on the 27th 48.0 on the 22nd in 2011 20
Nowra Boat Shed (Shoalhaven River) 105.0 on the 27th 95.0 on the 1st in 2005 20
Nowra RAN Air Station AWS 125.0 on the 27th 61.6 on the 17th in 2015 20
Oberon (Mount David) 38.0 on the 27th 24.0 on the 20th in 2016 20
Parkville (Kingdon Ponds) 42.6 on the 27th 37.2 on the 27th in 2004 20
Putty (The Gibba) 60.0 on the 27th 25.0 on the 29th in 2010 20
Rocks Crossing (Nowendoc River) 34.6 on the 26th 29.0 on the 27th in 2004 20
Seven Hills (Radio FM 103.2) 89.5 on the 27th 38.0 on the 22nd in 2011 20
Wyong (Mount Elliot) 104.0 on the 27th 83.0 on the 20th in 2011 20
Wyong (Olney Forest) 115.0 on the 27th 53.0 on the 22nd in 2011 20



Record highest July total rainfall
New record
(mm)
Old
record
Years of
record
Average for
July
Eden (Marine Rescue Eden) 224.5 220.5 in 1902 146 56.0
Moruya Heads Pilot Station 281.0 259.5 in 1934 146 55.8
Narooma (Marine Rescue) 303.6 223.9 in 1934 96 50.7
Bendalong STP 362.4 237.3 in 1950 77 71.3
Williamtown RAAF 242.6 190.4 in 1997 73 72.6
Culburra Treatment Works 336.2 228.4 in 2006 55 78.6
Nimmitabel (Cottesloe) 274.0 266.6 in 1991 48 60.7
Brogo (Blanchards Road) 376.8 245.0 in 2001 41 65.7
Araluen Lower (Araluen Rd) 255.0 251.6 in 1991 39 54.8
Castle Hill (Kathleen Ave) 179.2 121.6 in 2011 33 43.4
Cooma Airport AWS 104.6 92.4 in 2005 33 30.1
Swansea (Catherine St) 316.2 251.6 in 2011 33 83.3
Putty Tea Rooms 114.4 68.9 in 1976 32 24.5
Braidwood Racecourse AWS 108.2 94.4 in 2005 29 34.6
Bombala AWS 167.6 134.0 in 2001 27 38.8
Box Hill (McCall Gardens) 120.0 63.4 in 1993 27 31.1
Green Cape AWS 148.0 141.2 in 2006 27 45.7
Mangrove Mountain AWS 215.2 176.2 in 2011 27 47.9
Mount Boyce AWS 144.4 130.4 in 1999 27 45.2
Ulladulla AWS 416.4 205.0 in 2001 27 80.1
Bega AWS 245.0 183.8 in 2001 26 44.3
Badgerys Creek AWS 77.4 71.6 in 2010 25 24.8
Penrith Lakes AWS 101.0 82.0 in 1999 25 30.6
Robertson (The Pie Shop) 350.6 340.0 in 1988 25 90.6
Wattamolla (Griffiths) 413.6 316.4 in 1999 25 91.4
Horsley Park Equestrian Centre AWS 135.4 122.2 in 1999 23 39.5
Howes Valley (Putty Rd) 137.6 88.1 in 1962 23 31.4
Merimbula Airport AWS 219.4 174.8 in 2001 23 51.3
Albion Park (Shellharbour Airport) 191.8 185.6 in 1999 22 54.2
Newcastle University 277.2 203.9 in 2011 22 64.1
Blackheath (Wombat Street) 172.0 107.0 in 2016 21 46.4
Moruya Airport AWS 274.4 196.8 in 2001 21 55.7
Sanctuary Point (Salinas Street) 446.0 196.0 in 2011 21 97.8
Abbotsbury (Fairfield (City Farm)) 106.0 71.0 in 2011 20 32.0
Baulkham Hills Eucalyptus Ct 145.5 99.5 in 2011 20 38.1
Bellbrook (Macleay River) 34.0 = 34.0 in 2004 20 15.5
Boat Harbour (Rous River) 173.0 111.0 in 2013 20 44.9
Greenstead (Wingecarribee River) 84.0 83.0 in 2005 20 29.3
Howes Valley (Commission Rd) 109.0 50.0 in 2010 20 20.1
Jervis Bay (Point Perpendicular) 243.2 220.8 in 2001 20 104.6
Menangle Bridge (Nepean River) 78.0 67.0 in 2005 20 29.9
Moruya (Burra Creek) 271.0 138.0 in 2005 20 39.1
Moruya (Plumwood) 412.0 167.0 in 2005 20 54.0
North Murwillumbah (Tweed River) 170.0 118.0 in 2008 20 46.5
North Parramatta (Burnside Homes) 135.5 117.0 in 2011 20 40.7
Nowra Boat Shed (Shoalhaven River) 241.0 148.0 in 2005 20 58.1
Nowra RAN Air Station AWS 278.2 163.2 in 2005 20 66.8
Parkville (Kingdon Ponds) 83.0 68.2 in 2010 20 31.5
Putty (The Gibba) 110.0 67.0 in 2016 20 24.5
Rocks Crossing (Nowendoc River) 79.4 71.0 in 2011 20 29.7
Seven Hills (Radio FM 103.2) 135.5 77.0 in 2011 20 32.6
Wyong (Olney Forest) 176.0 115.0 in 2011 20 45.5

Highest July total rainfall for at least 20 years
Observed
(mm)
Most recent
higher
Average for
July
Bombala (Therry Street) 191.0 246.8 in 1922 46.4
Cobargo Post Office 278.0 428.5 in 1922* 53.9
Bega (Newtown Road) 299.8 354.9 in 1922* 53.1
Moss Vale (Hoskins Street) 220.4 242.5 in 1931 74.7
Broke (Harrowby) 114.0 161.5 in 1922* 39.8
Prospect Reservoir 168.0 245.6 in 1952* 56.3
Cooranbong (Avondale) 194.0 200.3 in 1952* 67.5
Tuross 213.2 221.2 in 1957 51.0
Berridale (Bolton Street) 120.0 126.7 in 1957* 30.5
Bettowynd (Bellaringah) 199.0 223.7 in 1960* 45.7
Nelligen (Thule Road) 327.2 411.9 in 1922* 76.4
Elderslie 129.0 135.2 in 1965* 34.6
Snowball 274.0 287.3 in 1912* 72.0
Lithgow (Cooerwull) 102.6 167.7 in 1952* 60.3
Berrima West (Medway (Wombat Creek)) 113.4 120.4 in 1984* 44.0
Mittagong (Alfred Street) 128.2 165.3 in 1988 66.2
Murwillumbah (Bray Park) 155.8 200.0 in 1988 62.0
Yarramalong (Lewensbrook) 178.0 214.0 in 1988 50.5
Big Hill (Glen Dusk) 84.0 108.4 in 1984* 38.8
Springwood (Valley Heights) 112.0 350.8 in 1988* 55.0
Colo Heights (Mountain Pines) 136.0 152.6 in 1988* 37.5
Faulconbridge (St Georges Crescent) 114.4 297.7 in 1988* 46.4
Wooli Beach 176.3 176.6 in 1988* 59.6
Mullumbimby (Fairview Farm) 202.4 321.0 in 1988* 95.7
Braidwood (Krawarree) 208.2 223.2 in 1991* 50.7
Murwillumbah (Dungay (Taleswood)) 180.8 201.0 in 1988* 76.3
Bringelly (Maryland) 71.0 109.2 in 1988* 46.4
Kioloa Old Post Office 317.6 370.4 in 1991* 74.3
Nerriga Composite 113.0 155.4 in 1991* 60.6
Dora Creek (Dora St) 230.2 355.2 in 1912* 75.9
Bulga (Down Town) 77.6 107.6 in 1998 26.9
Campbelltown (Kentlyn (Georges River Roa 112.0 137.8 in 1984* 34.0
Dunedoo Post Office 99.3 188.1 in 1998 45.6
Gilgandra (Chelmsford Ave) 109.0 155.8 in 1998 42.7
Hunter Springs (Wondecla) 211.6 213.2 in 1998 90.4
Mendooran Post Office 112.8 166.0 in 1998 44.9
Nullo Mountain AWS 142.2 181.0 in 1998 62.0
Scone Airport AWS 86.0 133.4 in 1998 38.5
Trangie Research Station AWS 68.2 97.8 in 1998 34.1
Bankstown Airport AWS 123.2 132.2 in 1999 44.3
Beaumont (The Cedars) 359.2 532.3 in 1999 105.5
Branxton (Dalwood Vineyard) 106.6 112.0 in 1999 50.7
Cessnock Airport AWS 104.6 124.8 in 1999 29.1
Eumungerie Post Office 125.6 145.6 in 1998* 40.9
Evans Head RAAF Bombing Range AWS 206.4 217.6 in 1999 73.1
Harwood Island (Harwood Sugar Mill) 133.8 179.2 in 1999 70.5
Katoomba (Farnells Rd) 174.2 186.2 in 1999 81.9
Krambach (Tipperary) 86.0 208.7 in 1999 38.5
Lostock Dam 99.2 152.8 in 1999 39.2
Newcastle Nobbys Signal Station AWS 154.4 157.3 in 1998* 92.3
Parramatta North (Masons Drive) 147.2 150.8 in 1999 46.1
Paterson (Tocal AWS) 105.2 136.2 in 1999 39.8
Paterson Post Office 110.8 139.8 in 1999 60.7
Richmond RAAF 103.6 105.8 in 1999 29.8
Taree Airport AWS 102.6 234.4 in 1999 52.8
Wingham (Lanark Close) 73.2 198.0 in 1999 57.6
Yamba Pilot Station 208.8 271.0 in 1999 100.4
Canterbury Racecourse AWS 136.4 174.8 in 1999* 57.3
Gloucester Post Office 79.2 169.2 in 1999* 49.2
Kurrajong Heights (Bells Line of Road) 124.4 128.1 in 1999* 60.0

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




Record highest July mean daily maximum temperature
New record
(°C)
Old
record
Years of
record
Average for
July
Tumbarumba Post Office 13.0 12.6 in 2013 54 10.7
Oberon (Albion St) 11.0 10.7 in 1976 46 8.8
Gundagai (Nangus Rd) 14.2 = 14.2 in 2019 24 13.0
Cabramurra SMHEA AWS 5.8 5.4 in 2001 23 3.8



Record highest July daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
July
Bega AWS 12.2 on the 27th 12.0 on the 7th in 2016 29 2.2
Merimbula Airport AWS 12.6 on the 27th 12.0 on the 10th in 2001 23 4.1



Record highest July mean daily minimum temperature
New record
(°C)
Old
record
Years of
record
Average for
July
Cooma Visitors Centre -0.3 -0.6 in 2016 44 -2.7
Cooma Airport AWS -0.3 -0.4 in 2016 28 -2.1
Dorrigo (Old Coramba Rd) 5.9 = 5.9 in 2010 23 4.4

Highest July mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
July
Bombala (Therry Street) 1.5 1.6 in 1991 -1.2
Ulladulla AWS 10.0 10.2 in 1993 8.9
Port Macquarie Airport AWS 8.3 8.5 in 1999 6.3
Yarras (Mount Seaview) 8.0 =8.0 in 1999 5.5



Lowest July mean daily minimum temperature for at least 20 years
Observed
(°C)
Most recent
lower
Average for
July
Deniliquin Airport AWS 2.0 0.5 in 1997 3.5
Menindee Post Office 3.0 2.3 in 1997 4.1



Record highest July mean temperature
New record
(°C)
Old
record
Years of
record
Average for
July
Port Macquarie Airport AWS 13.8 = 13.8 in 2013 25 12.6
Cabramurra SMHEA AWS 3.3 3.0 in 2013 23 1.5

Highest July mean temperature for at least 20 years
Observed
(°C)
Most recent
higher
Average for
July
Taree Airport AWS 13.5 13.6 in 1999 12.6



Summary statistics for July 2020
Maximum temperatures
(°C)
Minimum temperatures
(°C)
Rainfall
(millimetres)
Mean for
July
2020
Diff
from
average
Highest for
July
2020
Mean for
July
2020
Diff
from
average
Lowest for
July
2020
Total for
July
2020
Average
for
July
Rank of
July
2020
Fraction of
July
average
Western (Far Northwest) (district 46)
Fowlers Gap AWS 17.6 +0.3 23.9 1st 3.4 -1.0 -1.0 8th 4.6 15.2 average 30%
Smithville AWS 18.3   25.4 1st 4.5   0.8 16th 4.0
Tibooburra Airport 18.4 +0.1 25.9 1st 6.1 -0.4 3.4 5th 6.0 11.6 average 52%
Wanaaring (Borrona Downs AWS) 18.4   25.8 1st 5.6   0.8 18th 7.0
White Cliffs AWS 17.3 -0.5 24.8 1st 5.1 -0.6 0.6 18th 11.0 16.9 average 65%
Wilcannia Aerodrome AWS 16.9 -0.8 24.4 1st 3.0 -0.9 -1.7 8th 21.6 18.6 average 116%
Western (Lower Darling) (district 47)
Broken Hill Airport AWS 16.1 +0.4 22.5 1st 4.1 -0.7 -1.4 8th 2.8 17.0 low 16%
Lake Victoria Storage 16.5 +1.1 20.2 1st 3.6 -1.7 -1.0 23rd 2.5 23.6 v low 11%
Menindee Post Office 17.3 +0.2 24.2 1st 3.0 -1.1 -0.5 18th 5.1 17.7 low 29%
Mulurulu AWS 16.4   20.5 1st 2.6   -2.1 17th 8.4
Pooncarie Mail Agency 17.4 +0.1 22.4 1st 3.1 -1.3 -1.0 16th 4.8 21.7 low 22%
Western (Upper Darling) (district 48)
Bourke Airport AWS 18.9 +0.3 25.9 2nd 4.5 +0.3 -1.0 8th 6.0 12.7 average 47%
Brewarrina Hospital 18.7 +0.4 26.1 2nd 5.4 +1.0 1.1 5th 21.8 28.1 average 78%
Cobar Airport AWS 16.9 +0.5 23.1 1st 3.2 +0.1 -2.4 17th 17.4 21.1 average 82%
Cobar MO 17.0 +1.0 23.3 1st 4.9 -0.2 1.1 7th 26.2 27.5 average 95%
Noona AWS 16.8   23.6 1st 5.2   -0.9 8th 28.2
Wanaaring (Delta AWS) 18.5   25.5 1st 3.3   -2.5 17th 3.2
Wanaaring Post Office 19.0 0.0 26.6 1st 3.6 -0.5 -1.6 18th 7.1 17.3 average 41%
Western (Southwest Plains) (district 49)
Balranald (RSL) 16.0 +0.3 21.2 1st 2.9 -0.6 -0.9 17th 8.1 26.2 low 31%
Euabalong (Mount Hope AWS) 15.8   21.7 1st 2.2   -2.9 17th 22.4
Ivanhoe Aerodrome AWS 16.4 -0.3 22.7 1st 3.9 -1.2 -0.9 17th 7.2 17.2 low 42%
Central Western Plains (South) (district 50)
Condobolin Ag Research Stn 15.1 0.0 18.9 24th 2.8 0.0 -1.5 17th 49.3 35.2 high 140%
Condobolin Airport AWS 15.0 -0.4 18.7 1st 2.7 -0.2 -1.8 18th 46.4 31.7 high 146%
Peak Hill Post Office 15.9 +0.5 20.0 1st 5.4 +0.6 0.7 21st 85.6 44.5 v high 192%
West Wyalong Airport AWS 14.2 -0.2 17.6 28th 3.2 +0.2 -1.3 23rd 44.0 40.8 average 108%
Central Western Plains (North) (district 51)
Coonamble Airport AWS 16.8 -0.5 22.8 2nd 4.6 +1.0 1.1 21st 39.2 31.6 high 124%
Girilambone (Okeh) AWS 16.8   23.6 2nd 5.2   1.0 18th 34.0
Trangie Research Station AWS 16.3 +0.8 22.6 2nd 4.3 +1.1 -0.3 21st 68.2 34.1 high 200%
Walgett (Brewon AWS) 18.5   25.9 2nd 3.9   -1.6 7th 30.8
Northwest Plains (West) (district 52)
Mungindi Post Office 20.2 +1.2 26.0 2nd 5.3 +0.6 1.2 5th 13.2 32.2 average 41%
Walgett Airport AWS 18.4 -0.2 25.6 2nd 4.3 +0.8 -0.8 8th 53.6 26.9 high 199%
Northwest Plains (East) (district 53)
Moree Aero 19.1 +0.7 23.9 2nd 5.3 +0.8 -1.4 6th 13.2 33.5 average 39%
Northwest Slopes (North) (district 54)
Barraba (Clifton Lane) 16.8 +0.5 21.7 24th 0.7 +0.5 -6.2 21st 27.4 42.8 average 64%
Narrabri Airport AWS 18.4 +0.3 22.7 2nd 4.7 +0.7 -1.1 5th 19.2 28.2 average 68%
Northwest Slopes (South) (district 55)
Gunnedah Airport AWS 17.5 +0.1 22.3 2nd 3.0 +1.1 -3.4 21st 29.6 29.1 average 102%
Quirindi Post Office     21.4 24th 2.3 +0.7 -3.6 21st 37.0 47.2 average 78%
Tamworth Airport AWS 16.9 +0.5 21.3 2nd 3.5 +1.3 -3.6 21st 37.0 40.1 average 92%
Woolbrook (Woolbrook Road) 12.7 -0.1 16.7 2nd 1.0 +2.1 -7.3 21st 47.2 50.5 average 93%
Northern Tablelands (West) (district 56)
Armidale (Tree Group Nursery) 13.2 0.0 17.5 3rd 0.4 +0.9 -8.0 21st 45.2 37.4 high 121%
Armidale Airport AWS 11.9 -0.4 16.0 3rd 2.1 +0.8 -4.8 21st 59.4 40.8 high 146%
Glen Innes Ag Research Stn 13.5 +0.8 17.0 30th 1.6 +0.8 -4.2 5th 50.3 54.8 average 92%
Glen Innes Airport AWS 13.4 0.0 16.9 30th -0.2 +0.9 -7.3 5th 52.8 46.7 average 113%
Guyra Hospital 10.8 +0.2 14.9 23rd 1.4 +0.6 -4.1 6th 57.4 55.2 average 104%
Inverell (Raglan St) 16.7 +0.1 19.7 24th 1.2 +1.4 -5.2 6th 29.6 40.6 average 73%
Inverell Research Centre 15.9 +0.6 19.2 23rd 4.4 +0.8 -2.1 6th 31.0 47.1 average 66%
Tenterfield (Federation Park) 14.8 +0.3 18.6 17th 0.9 -0.1 -5.1 7th 38.0 52.8 average 72%
Northern Tablelands (East) (district 57)
Tabulam (Muirne) 16.6 +0.1 21.0 19th 8.2 +0.9 2.9 5th 47.8 42.9 high 111%
Upper North Coast (district 58)
Ballina Airport AWS 19.8 -0.3 24.5 3rd 10.4 +1.8 2.9 5th 174.8 108.1 high 162%
Byron Bay (Cape Byron AWS) 18.8 -0.1 23.4 3rd 12.9 +0.6 9.4 5th 116.4 82.8 average 141%
Casino Airport AWS 20.8 0.0 26.0 3rd 7.6 +1.1 1.4 5th 68.2 31.9 high 214%
Evans Head RAAF Bombing Range AWS 19.7 -0.2 25.5 3rd 11.0 +0.7 4.9 5th 206.4 73.1 v high 282%
Grafton Airport AWS 20.0 -0.7 23.2 29th 6.2 +1.0 -0.7 5th 74.8 31.6 v high 237%
Grafton Research Stn 20.3 -0.1 23.1 29th 8.3 +1.6 1.7 5th 54.0 49.0 high 110%
Lismore Airport AWS 20.3 -0.6 24.7 3rd 7.3 +1.2 0.9 5th 77.2 35.3 high 219%
Murwillumbah (Bray Park) 21.2 +0.1 25.1 3rd 9.7 +1.2 2.2 5th 155.8 62.0 v high 251%
Yamba Pilot Station 19.7 +0.6 24.3 3rd 11.0 +1.3 6.4 5th 208.8 100.4 high 208%
Lower North Coast (district 59)
Coffs Harbour Airport 19.7   23.1 2nd 9.3   1.1 5th 95.0
Dorrigo (Old Coramba Rd) 14.4 -0.3 19.0 2nd 5.9 +1.5 1.0 6th 69.4 56.1 high 124%
Kempsey Airport AWS 20.0 -0.1 25.3 3rd 7.1 +2.2 0.6 5th 57.6 25.6 v high 225%
Manning (district 60)
Port Macquarie Airport AWS 19.3 +0.3 23.6 3rd 8.3 +2.0 0.6 21st 99.2 63.1 high 157%
Taree Airport AWS 18.5 -0.2 24.2 2nd 8.5 +1.9 3.5 2nd 102.6 52.8 high 194%
Yarras (Mount Seaview) 18.7 0.0 24.3 3rd 8.0 +2.5 3.4 21st 154.6 64.3 v high 240%
Hunter (district 61)
Cessnock Airport AWS 17.9 +0.3 22.7 2nd 6.1 +2.1 0.4 6th 104.6 29.1 v high 359%
Cooranbong (Lake Macquarie AWS) 18.1 -0.7 23.3 2nd 6.4 +1.7 1.4 21st 184.0 51.0 v high 361%
Gosford AWS 17.6   23.4 2nd 8.0   3.8 23rd 171.6
Maitland Airport AWS 17.8   23.5 2nd 6.9   2.2 1st 107.2
Mangrove Mountain AWS 16.1 +0.5 21.7 2nd 6.5 +0.6 1.5 21st 215.2 47.9 highest 449%
Merriwa (Roscommon) 15.7 -0.5 21.8 2nd 2.7 +0.5 -2.5 7th 64.4 35.0 high 184%
Murrurundi (Haydon Street) 15.8   19.4 2nd 3.5   -2.1 5th 78.0
Murrurundi Gap AWS 12.5 -0.1 16.1 9th 5.4 +0.5 -1.8 21st 93.8 46.6 high 201%
Newcastle Nobbys Signal Station AWS 17.5 +0.7 23.2 2nd 10.3 +1.8 6.8 21st 154.4 92.3 high 167%
Norah Head AWS 17.5 0.0 23.0 2nd 10.9 +1.1 8.2 21st 225.2 85.8 high 262%
Paterson (Tocal AWS) 17.4 -0.1 23.7 2nd 7.2 +1.0 2.6 6th 105.2 39.8 v high 264%
Scone Airport AWS 16.8 +0.1 21.6 2nd 3.9 +0.6 -2.3 21st 86.0 38.5 v high 223%
Singleton Defence AWS 17.7   22.5 2nd 7.1   2.4 24th 98.6
Williamtown RAAF 17.7 +0.5 23.5 2nd 7.8 +1.4 3.3 24th 242.6 72.6 highest 334%
Central Tablelands (North) (district 62)
Mudgee Airport AWS 15.1 +0.6 19.4 2nd 1.6 +0.5 -3.0 6th 81.2 43.4 high 187%
Nullo Mountain AWS 9.9 +0.6 13.2 2nd 3.1 +0.6 -0.1 4th 142.2 62.0 v high 229%
Central Tablelands (South) (district 63)
Bathurst Agricultural Station 13.4 +2.0 17.0 24th 1.6 +1.1 -3.5 23rd 56.7 48.1 average 118%
Bathurst Airport AWS 13.0 +1.0 16.2 24th 1.2 +0.4 -3.3 23rd 79.8 42.1 high 190%
Katoomba (Farnells Rd) 11.4 +1.9 15.2 30th 3.2 +0.6 -0.8 21st 174.2 81.9 high 213%
Lithgow (Cooerwull) 11.8 +0.8 15.7 24th 1.0 0.0 -4.1 23rd 102.6 60.3 high 170%
Marrangaroo (Defence) 11.7   14.9 24th 0.3   -5.0 23rd 104.8
Mount Boyce AWS 10.7 +1.1 14.3 25th 3.1 +0.5 -0.5 21st 144.4 45.2 highest 319%
Oberon (Albion St) 11.0 +2.2 14.3 25th -0.4 -0.1 -5.1 23rd 53.6 69.9 average 77%
Orange Airport AWS 10.5 +0.6 14.0 23rd 0.6 +0.1 -4.1 7th 78.8 72.2 average 109%
Springwood (Valley Heights) 16.4 +0.1 22.0 2nd 7.6 +1.0 4.7 19th 112.0 55.0 high 204%
Central Western Slopes (North) (district 64)
Coonabarabran (Showgrounds) 15.2 +0.3 19.5 2nd 2.0 +1.9 -2.0 7th 77.4 54.4 high 142%
Coonabarabran Airport AWS 13.8 -0.4 18.7 2nd 5.5 +0.2 0.9 13th 87.6 38.8 high 226%
Dunedoo Post Office 15.6 +0.2 21.5 2nd 2.9 +0.9 -2.0 17th 99.3 45.6 high 218%
Central Western Slopes (South) (district 65)
Cowra Airport AWS 14.7 +0.5 18.3 1st 3.1 +0.9 -2.0 24th 95.4 45.0 high 212%
Dubbo Airport AWS 15.8 +0.2 20.6 2nd 3.1 +0.1 -2.1 16th 82.2 41.5 high 198%
Forbes Airport AWS 14.8 +0.1 18.6 1st 2.8 +0.3 -1.9 21st 58.2 38.6 high 151%
Parkes Airport AWS 14.2 -0.2 17.9 24th 2.8 +0.5 -2.1 17th 67.0 47.1 high 142%
Wellington (D&J Rural) 15.9 +0.6 20.0 2nd 2.7 +0.5 -2.0 21st 66.5 48.7 high 137%
Metropolitan (East) (district 66)
Bankstown Airport AWS 18.0 +0.6 23.4 2nd 7.1 +2.0 3.5 19th 123.2 44.3 v high 278%
Canterbury Racecourse AWS 17.8 +0.1 23.0 2nd 7.0 +1.3 3.1 23rd 136.4 57.3 v high 238%
Holsworthy Aerodrome AWS 17.4   23.4 2nd 6.8   2.5 19th 121.8
Parramatta North (Masons Drive) 17.8 +0.3 22.8 2nd 7.1 +0.9 3.6 21st 147.2 46.1 v high 319%
Sydney (Observatory Hill) 18.0 +1.6 23.0 2nd 9.7 +1.6 7.1 22nd 183.0 96.3 high 190%
Sydney Airport AMO 17.7 +0.5 24.2 2nd 9.8 +2.5 7.1 19th 123.2 69.2 high 178%
Sydney Harbour (Wedding Cake West) 17.6 +0.3 22.5 2nd 11.5 +1.0 9.3 19th
Sydney Olympic Park AWS (Archery Centre) 18.3   23.2 2nd 7.6   4.2 22nd 128.8
Terrey Hills AWS 16.2 -0.1 21.8 2nd 8.7 +1.0 5.8 6th 176.2 60.8 high 290%
Metropolitan (West) (district 67)
Badgerys Creek AWS 17.9 +0.4 23.6 2nd 5.7 +1.6 0.6 19th 77.4 24.8 highest 312%
Horsley Park Equestrian Centre AWS 17.4 0.0 22.9 2nd 6.9 +1.1 1.9 22nd 135.4 39.5 highest 343%
Penrith Lakes AWS 18.4 +0.4 24.7 2nd 6.3 +1.0 1.8 5th 101.0 30.6 highest 330%
Richmond RAAF 18.2 +0.4 23.3 2nd 5.1 +1.6 0.0 21st 103.6 29.8 v high 348%
Illawarra (district 68)
Albion Park (Shellharbour Airport) 17.9 +0.1 23.2 2nd 7.4 +1.2 1.9 22nd 191.8 54.2 highest 354%
Bellambi AWS 17.3 +0.2 22.4 2nd 10.5 +0.4 8.2 13th 207.8 77.0 v high 270%
Camden Airport AWS 18.0 +0.6 22.9 2nd 4.8 +1.9 -0.4 19th 66.2 35.8 high 185%
Campbelltown (Mount Annan) 18.1 +0.3 23.2 2nd 5.5 +1.8 1.4 19th 83.6 28.0 v high 299%
High Range AWS (Wanganderry) 11.3   14.8 2nd 4.6   1.1 7th 76.8
Holsworthy Defence AWS 16.9   22.4 2nd 6.9   3.5 22nd 138.8
Jervis Bay (Point Perpendicular) 16.2 +0.1 20.4 2nd 10.9 +1.0 8.5 22nd 243.2 104.6 highest 233%
Jervis Bay NSW (Jervis Bay Airfield AWS) 16.5   21.3 2nd 9.0   4.1 22nd 356.0
Kiama (Bombo Headland) 17.3 0.0 23.7 2nd 10.8 +0.8 7.6 3rd 216.2 69.6 v high 311%
Moss Vale AWS 12.7 +0.8 16.0 2nd 3.3 +0.9 -2.6 22nd 173.6 48.5 v high 358%
Nowra RAN Air Station AWS 17.2 +0.5 21.1 1st 7.9 +1.3 3.6 3rd 278.2 66.8 highest 416%
South Coast (district 69)
Bega AWS 16.7 +0.1 21.7 1st 4.7 +2.5 -1.2 3rd 245.0 44.3 highest 553%
Braidwood Racecourse AWS 13.0 +0.9 15.6 10th 1.1 +1.1 -5.2 22nd 108.2 34.6 highest 313%
Green Cape AWS 15.0 -0.5 20.3 2nd 9.9 +0.7 6.9 24th 148.0 45.7 highest 324%
Merimbula Airport AWS 16.2 -0.5 21.9 2nd 6.2 +2.1 2.1 18th 219.4 51.3 highest 428%
Montague Island Lighthouse 15.9 +0.3 19.9 2nd 11.2 +1.2 8.6 4th 165.4 51.8 v high 319%
Moruya Airport AWS 17.3 +0.1 22.6 2nd 5.4 +1.4 1.1 21st 274.4 55.7 highest 493%
Moruya Heads Pilot Station 16.7 +0.5 21.9 2nd 7.9 +2.0 4.9 31st 281.0 55.8 highest 504%
Narooma (Marine Rescue) 16.8 +0.5 19.8 2nd 7.9 +1.2 5.4 22nd 303.6 50.7 highest 599%
Nerriga AWS 12.9   16.0 24th 2.6   -1.9 22nd 121.4
Ulladulla AWS 16.5 0.0 20.7 1st 10.0 +1.1 6.7 22nd 416.4 80.1 highest 520%
Southern Tablelands (Goulburn-Monaro) (district 70)
Bombala (Therry Street) 11.8 +0.7 16.7 1st 1.5 +2.7 -4.2 25th 191.0 46.4 v high 412%
Bombala AWS 10.3 -0.5 15.5 1st 1.8 +2.0 -3.7 25th 167.6 38.8 highest 432%
Canberra Airport 13.2 +0.4 15.7 29th 1.2 +1.3 -3.6 22nd 33.4 32.0 average 104%
Cooma Airport AWS 10.2 -0.1 13.4 25th -0.3 +1.8 -5.4 8th 104.6 30.1 highest 348%
Cooma Visitors Centre 11.7 +0.2 15.7 25th -0.3 +2.4 -6.6 25th 63.7 27.8 v high 229%
Goulburn Airport AWS 13.2 +1.4 16.2 1st 0.6 +0.4 -6.1 22nd 36.6 31.7 average 115%
Goulburn TAFE 12.5 +1.0 16.0 24th 2.3 +0.7 -3.1 23rd 32.2 40.1 average 80%
Mount Ginini AWS 4.5 +2.0 8.0 25th -1.0 +1.5 -5.5 4th 78.2 94.1 average 83%
Taralga Post Office 11.9 +1.5 15.5 24th 0.8 +0.2 -4.5 22nd 95.3 66.2 high 144%
Tuggeranong (Isabella Plains) AWS 13.1 +0.7 16.0 29th 1.2 +1.3 -3.9 23rd 42.8 38.2 average 112%
Southern Tablelands (Snowy Mountains) (district 71)
Perisher Valley AWS 4.1 +1.1 9.2 25th -3.6 +0.3 -7.8 17th 228.4 215.0 average 106%
Thredbo AWS 1.4 +1.4 5.4 18th -3.4 +1.8 -7.6 17th 133.4 107.9 high 124%
Thredbo Village 6.4 +1.0 10.2 18th -2.6 +1.0 -7.5 23rd 196.7 166.7 high 118%
Southwest Slopes (South) (district 72)
Albury Airport AWS 13.9 +0.7 18.6 28th 2.8 -0.4 -0.5 18th 30.6 64.0 low 48%
Cabramurra SMHEA AWS 5.8 +2.0 9.9 25th 0.6 +1.5 -4.7 4th 43.4 112.6 v low 39%
Hume Reservoir 13.4 +1.1 18.9 28th 4.6 +0.6 0.8 24th 45.2 75.8 low 60%
Khancoban AWS 12.9 +1.3 17.4 28th 1.5 -0.2 -2.9 24th 44.6 87.7 v low 51%
Tumbarumba Post Office 13.0 +2.3 15.6 10th -0.3 -0.2 -5.0 18th 43.2 104.0 v low 42%
Wagga Wagga AMO 13.5 +0.7 18.0 28th 2.9 +0.1 -2.5 17th 26.0 53.7 low 48%
Southwest Slopes (North) (district 73)
Cootamundra Airport 13.4 +0.4 17.1 28th 1.1 0.0 -3.6 17th 68.3 57.4 average 119%
Grenfell (Manganese Rd) 13.6 +0.6 17.5 1st 2.8 -0.2 -1.5 17th 73.9 56.0 high 132%
Gundagai (Nangus Rd) 14.2 +1.2 19.3 28th 2.6 0.0 -1.5 22nd 50.8 61.6 average 82%
Temora Airport 13.5 -0.3 16.9 28th 2.1 -0.1 -2.5 17th 43.2 37.9 average 114%
Young Airport 13.6 +0.6 16.9 24th 1.2 +0.3 -2.6 16th 87.6 57.6 high 152%
Riverina (East) (district 74)
Corowa Airport       2.4 -0.4 -2.2 24th 36.7 54.5 low 67%
Deniliquin Airport AWS 14.4 0.0 18.2 1st 2.0 -1.5 -2.3 23rd 16.6 28.3 low 59%
Kapooka (Defence) 13.8   17.7 28th 2.7   -1.9 17th 23.2
Narrandera Airport AWS 14.9 +0.5 18.7 10th 2.7 -0.5 -1.3 24th 25.2 36.2 average 70%
Tocumwal Airport 14.1 +0.2 17.7 28th 3.2 -0.2 -2.7 24th 41.7
Yanco Agricultural Institute 14.7 +0.2 18.2 28th 4.0 -0.9 0.0 23rd 17.0 33.3 low 51%
Riverina (West) (district 75)
Griffith Airport AWS 15.5 +0.9 19.3 10th 2.6 -0.9 -1.7 24th 27.2 33.1 average 82%
Hay Airport AWS 15.6 -0.2 19.0 1st 2.0 -1.5 -3.0 24th 28.8 21.7 average 133%
Hillston Airport 15.6 +0.6 20.0 1st 2.9 -0.9 -1.5 24th 16.3 30.6 average 53%
Lake Cargelligo Airport 15.2 -0.3 21.6 1st 3.1 -0.3 -0.8 24th 20.6 33.1 average 62%
Note: From 2017, information about Lord Howe and Norfolk Islands can be found in the climate summary for the Remote Islands and Antarctica

Notes

The Monthly climate summary, generally published on the first working day of each month, lists 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. 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.

This statement has been prepared based on information available at 11 am on Monday 3 August 2020. 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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