New South Wales in July 2010: Wettest July in 12 years

  • Wettest July since 1998 for NSW and the Murray Darling Basin
  • 12th consecutive July with above average maximum temperatures
  • Above average minimum temperatures

Rainfall

Following a drier than average June; NSW experienced above average rainfall in July, particularly in the northern half of the state. The statewide average rainfall for July was 59.4 mm which is above the historical average1of 39.4 mm. The Murray Darling Basin recorded a basin-wide average of 54.5 mm which is above the historical average of 39.7 mm. This was the first month since March with above average rainfall for NSW and the Murray Darling Basin (MDB), and the wettest July since 1998 for NSW (96.5 mm) and the MDB (90.8 mm).

Slow moving high pressure systems were the dominant synoptic feature during July, resulting in mostly fine conditions across NSW. Moist onshore flow generated by these systems brought isolated showers to coastal regions during the month; however, much of the rainfall experienced by inland regions during July resulted from upper and surface level troughs that moved across the state during the month.

On the 2nd an upper level trough brought rainfall to most inland districts, whilst on the 6th another upper level trough, preceded by a cloud band, brought rainfall to much of eastern NSW. From the 11th to the 12th, a cold front moving throught the southeast of the state brought showers and rainfall to southern border regions, with northeastern NSW also experiencing rainfall as this system moved across the state. From the 13th to the 15th, a strong front moved across NSW, bringing moderate to heavy rainfall across most districts, particularly west of the ranges. On the 20th, southerly winds generated by the interaction of a high pressure ridge over NSW and low pressure system over the Tasman, brought rainfall to some coastal districts. During the 28th - 31st July the interaction of moist northeasterly winds with a series of upper level troughs brought significant rainfall to most districts.

Some sites had their highest total July rainfall on record.
See a map of rainfall deciles.

Temperature

NSW experienced above average temperatures during July, with a statewide average mean temperature of 9.9 °C which is 0.5 °C above the historical average of 9.4 °C.

Maximum temperature

July maximum temperatures were average to above average across NSW; with the exception of parts of the far west, where they were average to below average. The overall statewide average maximum temperature for NSW during July was 15.6 °C which is 0.3 °C above the historical average of 15.3 °C. This is the 12th consecutive July with above average maximum temperatures in NSW.

Very cold air over NSW in the first few days of July saw daytime temperatures drop significantly in northern parts of the state. On the 2nd, Casino AP recorded its lowest daily maximum temperature of just 12.9 °C.

Some sites had their coldest July day (lowest maximum temperature) on record.
See a map of maximum temperature anomalies.

Minimum temperature

The northeastern half of NSW experienced above to very much above average minimum temperatures during July. This was largely a result of two main events during the month. Enhanced cloud cover associated with the passage of a front, resulted in warm overnight temperatures across northern and central parts of the state from the 11th to 13th, and throughout coastal regions on the 14th. From the 29th to the 31st moist northeasterly winds combined with enhanced cloud cover (associated with the passage of two upper level troughs), resulted in very warm minimum temperatures over much of inland NSW. Highest daily minimum temperature records were broken in parts of the northeast on the 31st (see table).

In contrast, the far southwest experienced average to below average minimum temperatures during July. This resulted in an overall statewide average minimum temperature of 4.2 °C which is 0.7 °C above the historical average of 3.5 °C.

Some sites had their lowest July temperature on record.
Some sites had their warmest July night (highest daily minimum temperature) on record.
Some sites had their highest July mean daily minimum temperature on record.
See a map of minimum temperature anomalies.

Other phenomena

Following the passage of a cold front on the 14th, snow was observed on the Snowy Mountains. Rainfall totals to 9am on the 14th in the area (including some snowmelt) were: 123.0 mm at Thredbo Village, 104.0 mm at Charlotte Pass (Kosciusko Chalet), 94.6 mm at Thredbo AWS and 81.0 mm at Perisher Valley AWS. Note the Bureau of Meteorology does not record snow depth.

Further information

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Extremes in July 2010
Hottest day 27.0 °C at Lismore Airport AWS on the 30th
Warmest days on average 20.8 °C at Grafton Olympic Pool
Coolest days on average 1.2 °C at Thredbo AWS
Coldest day -3.2 °C at Thredbo AWS on the 15th
Coldest night -19.6 °C at Charlotte Pass (Kosciusko Chalet) on the 20th
Coolest nights on average -5.4 °C at Perisher Valley AWS
Warmest nights on average 13.7 °C at Norfolk Island Aero
11.3 °C at Nelson Bay (Nelson Head)
11.3 °C at South West Rocks (Smoky Cape Lighthouse)
Warmest night 18.8 °C at Ballina Airport AWS on the 31st
Wettest overall 230.0 mm at Nundle (Head of The Peel)
Wettest day 123.0 mm at Thredbo Village on the 14th (snow)
104.0 mm at Charlotte Pass (Kosciusko Chalet) on the 14th (snow)
Highest wind gust 100 km/h at Cabramurra SMHEA AWS on the 14th

Record highest total July rainfall
Total rainfall
for July 2010 (mm)
Previous highest
for July
Years of
record
Average for
July
White Cliffs Post Office 104.4 84.8 in 1981 109 18.1




Record lowest July daily maximum temperature
Lowest daily maximum
temperature
in July 2010 (°C)
Previous lowest
for July
Years of
record
Average for
July
Casino Airport 12.9 on the 2nd 13.3 on the 11th in 1997 41 21.1



Record highest July daily minimum temperature
Highest daily minimum
temperature
in July 2010 (°C)
Previous highest
for July
Years of
record
Average for
July
Inverell Research Centre 12.9 on the 31st 12.7 on the 9th in 1993 45 3.5
Cowra Airport Comparison 11.5 on the 31st = 11.5 on the 7th in 1988 43 2.1
Casino Airport 17.8 on the 31st 17.7 on the 25th in 1986 41 6.6
Tabulam (Muirne) 15.1 on the 31st = 15.1 on the 21st in 1998 40 7.2
Cessnock (Nulkaba) 13.8 on the 31st 13.7 on the 15th in 1999 34 4.5
Gosford (Narara Research Station) AWS 14.0 on the 31st 13.1 on the 23rd in 1978 28 4.6



Record lowest July temperature
Lowest temperature
in July 2010 (°C)
Previous lowest
for July
Years of
record
Average for
July
Charlotte Pass (Kosciusko Chalet) -19.6 on the 20th -19.0 on the 1st in 1994 24 -6.6
Lord Howe Island Aero 6.6 on the 28th 7.3 on the 22nd in 2003 22 13.9



Record highest July mean daily minimum temperature
Mean daily minimum
temperature
for July 2010 (°C)
Previous highest
for July
Years of
record
Average for
July
Cessnock (Nulkaba) 6.7 = 6.7 in 1999 33 4.5
Nelson Bay (Nelson Head) 11.3 11.0 in 2005 24 8.5



Summary statistics for July 2010
Maximum temperatures
for July
(°C)
Minimum temperatures
for July
(°C)
Rainfall
for July
(millimetres)
Mean for
July
2010
Diff
from
average
Highest for
July
2010
Mean for
July
2010
Diff
from
average
Lowest for
July
2010
Total for
July
2010
Average
for
July
Rank of
July
2010
Fraction of
July
average
Western (Far Northwest) (district 46)
Fowlers Gap AWS 15.7   20.0 29th 4.2   0.0 3rd 36.8
Tibooburra Airport 16.7   23.7 29th 6.6   1.1 8th 50.6
Tibooburra Post Office 17.1 -0.7 24.4 29th 6.4 +1.0 1.4 8th 52.4 16.7 v high 314%
White Cliffs AWS 16.4   21.0 29th 6.0   1.2 5th 107.2
White Cliffs Post Office 16.8 -0.4 21.2 12th 4.9 +0.8 0.2 4th 104.4 18.1 highest 577%
Wilcannia (Reid St) 16.8 -0.3 20.7 29th 3.8 -0.4 -1.1 8th 58.4 18.3 v high 319%
Wilcannia Aerodrome AWS 16.7   21.2 12th 3.8   -1.7 5th 57.8
Western (Lower Darling) (district 47)
Broken Hill (Patton Street) 14.7 -0.5 18.1 30th 5.5 +0.1 1.8 6th 19.2 18.9 average 102%
Broken Hill Airport AWS 14.4 -1.0 18.0 30th 3.9 -1.0 -1.0 6th 13.6 18.3 average 74%
Lake Victoria Storage 15.5 +0.2 18.8 30th 3.2 -2.1 -2.1 5th 14.2 24.9 low 57%
Menindee Post Office 16.3 -0.7 19.4 9th 4.3 +0.3 1.0 9th 26.6 18.2 high 146%
Pooncarie Mail Agency 16.1   19.7 9th 3.8   0.0 7th 24.6 22.5 average 109%
Western (Upper Darling) (district 48)
Brewarrina Hospital 18.0 -0.1 22.0 12th 5.8 +1.4 0.4 21st 49.3 29.0 high 170%
Cobar Airport AWS 15.7   20.8 29th 3.9   -1.8 22nd 47.2
Cobar MO 15.8 0.0 21.3 29th 5.5 +0.5 0.9 23rd 93.4 29.4 v high 318%
Collarenebri (Albert St) 19.0 +0.5 25.1 12th 6.3 +2.2 -1.0 23rd 79.6 35.0 high 227%
Lightning Ridge Visitors Information Cen 19.3   25.6 12th 6.7   0.6 5th 93.0
Wanaaring Post Office 17.8   23.1 29th     0.9 23rd 54.0 17.8 v high 303%
Western (Southwest Plains) (district 49)
Balranald (RSL) 14.7 -1.0 18.0 30th 3.5 0.0 -0.5 7th 27.2 26.4 average 103%
Ivanhoe Aerodrome AWS 15.1   18.2 12th 4.3   0.3 8th -
Ivanhoe Post Office 15.9 -0.6 19.3 11th 2.8 -0.8 -2.0 8th 43.7 23.0 high 190%
Central Western Plains (South) (district 50)
Condobolin Ag Research Stn 14.6 -0.3 18.1 10th 3.0 +0.2 -1.9 22nd 37.9 36.5 average 104%
Condobolin Airport AWS 15.0   18.4 11th 3.2   -1.9 23rd 55.8
Peak Hill Post Office 15.8 +0.6 20.1 12th 6.1 +1.4 -0.2 22nd 100.4 44.8 v high 224%
West Wyalong Airport AWS 13.3   17.0 11th 3.0   -0.6 23rd 81.4
Central Western Plains (North) (district 51)
Coonamble Airport AWS 17.3   22.3 27th 5.3   -1.1 4th 83.8
Coonamble Comparison 18.3 +1.2 22.3 27th     -2.1 17th 73.0 35.9 high 203%
Nyngan Airport 16.4 0.0 21.0 29th 5.5 +1.8 0.5 18th 75.0 29.5 v high 254%
Trangie Research Station AWS 16.1 +0.8 20.6 13th 4.7 +1.5 -0.8 4th 67.2 34.9 high 193%
Northwest Plains (West) (district 52)
Mungindi Post Office 19.5 +0.7 26.5 12th 6.6 +2.0 -1.4 4th 65.3 33.4 high 196%
Walgett Airport AWS 18.5   23.9 13th 4.9   -3.1 4th 84.6
Northwest Plains (East) (district 53)
Moree Aero 18.0   24.0 12th 6.7   -2.4 4th 86.6
Northwest Slopes (North) (district 54)
Barraba Post Office 16.3 +0.3 20.1 13th 2.5 +2.3 -4.0 4th 96.4 44.1 v high 219%
Narrabri Airport AWS 17.6   23.2 13th 6.1   -0.8 4th 68.6
Northwest Slopes (South) (district 55)
Gunnedah Airport AWS 16.8   20.9 13th 4.6   -2.9 4th 93.4
Gunnedah Pool 17.2 +0.3 21.0 10th 6.0 +3.0 -0.2 4th 110.8 42.7 v high 259%
Gunnedah Resource Centre 16.3 +0.2 20.3 13th 6.6 +1.9 0.8 1st 101.6 43.3 v high 235%
Quirindi Post Office 16.3 +0.4 20.0 27th 3.6 +2.0 -2.8 4th 124.4 48.5 v high 256%
Tamworth Airport AWS 16.4   20.6 13th 4.8   -3.0 4th 111.6
Woolbrook (Danglemah Road) 13.0 +0.3 18.0 13th 1.2 +2.5 -6.5 1st 92.3 53.4 high 173%
Northern Tablelands (West) (district 56)
Armidale (Tree Group Nursery) 12.8   19.0 30th 1.1   -6.4 1st 88.0
Armidale Airport AWS 11.9   18.0 30th 2.6   -4.2 4th 97.2
Glen Innes Ag Research Stn 12.4 -0.1 16.5 13th 2.4 +1.8 -4.0 4th 57.0 55.6 average 103%
Glen Innes Airport AWS 13.0   18.9 30th 1.3   -5.9 1st 126.0
Glen Innes Post Office 13.2 +0.5 19.1 30th 3.3 +2.7 -2.9 1st 115.6 54.3 v high 213%
Guyra Hospital 10.6 +0.2 16.8 30th 2.1 +1.5 -4.8 4th 107.9 59.5 high 181%
Inverell (Raglan St) 16.0   21.2 30th 3.0   -4.0 4th 79.2
Inverell Research Centre 15.7 +0.6 20.8 30th 6.0 +2.5 -0.4 16th 77.8 48.8 high 159%
Tenterfield (Federation Park) 14.9 +0.5 21.5 30th 2.1 +1.1 -5.0 4th 87.8 54.5 high 161%
Northern Tablelands (East) (district 57)
Tabulam (Muirne) 16.0 -0.3 23.0 30th 7.8 +0.6 3.3 4th 63.2 46.5 high 136%
Upper North Coast (district 58)
Alstonville Tropical Fruit Research Stat 18.0 -0.6 22.1 12th 10.5 +0.6 7.0 17th 140.3 94.3 high 149%
Ballina Airport AWS 19.7   26.1 31st 10.4   5.4 18th 197.0
Byron Bay (Cape Byron AWS) 18.2   23.3 30th 12.0   9.0 4th 152.8
Casino Airport 20.2 -0.9 26.6 30th 8.9 +2.3 3.2 4th 48.6 56.8 average 86%
Casino Airport AWS 19.9   26.5 30th 8.6   2.7 4th 49.0
Evans Head RAAF Bombing Range AWS 19.4   26.4 30th 11.0   7.1 18th 125.2
Grafton Airport AWS 20.1   25.6 31st 6.9   0.8 4th 62.8
Grafton Olympic Pool 20.8 +0.3 26.4 30th 8.4 +2.1 3.5 1st 68.5 39.9 high 172%
Grafton Research Stn 20.0   25.9 31st 8.6   3.9 18th 60.8 54.2 high 112%
Lismore (Richmond Hill) 19.5   26.6 30th 9.9   5.0 4th 67.2
Lismore Airport AWS 20.1   27.0 30th 7.9   1.5 4th 50.6
Murwillumbah (Bray Park) 20.5 -0.5 26.8 30th 10.3 +1.8 3.9 15th 55.5 65.9 average 84%
Yamba Pilot Station 19.2 +0.2 24.3 31st 10.9 +1.2 6.5 4th 118.6 102.8 high 115%
Lower North Coast (district 59)
Coffs Harbour MO 19.3 +0.6 25.3 30th 10.0 +2.5 3.9 1st 160.0 74.4 high 215%
Dorrigo (Old Coramba Rd) 14.0   20.2 31st 5.9   0.9 17th 69.2
Kempsey (Wide Street) 19.3 -0.4 24.0 30th 8.1 +2.5 3.0 1st 41.0 66.5 average 62%
Kempsey Airport AWS 19.4   24.7 31st 6.8   1.7 1st 33.0
South West Rocks (Smoky Cape Lighthouse) 19.1 +0.4 23.8 30th 11.3 +0.1 6.9 3rd 78.4 78.5 average 100%
Manning (district 60)
Forster - Tuncurry R.V.C.P. 17.8   23.0 30th 10.1   5.8 1st 95.9 86.7 average 111%
Port Macquarie Airport AWS 18.5   24.0 30th 8.2   3.0 1st 64.8
Taree Airport AWS 18.0   24.0 30th 8.6   0.7 1st 54.4
Yarras (Mount Seaview) 17.8 -0.7 23.4 30th 7.5 +2.2 2.4 1st 143.0 62.7 high 228%
Hunter (district 61)
Cessnock (Nulkaba) 17.3 -0.5 21.6 30th 6.7 +2.2 0.4 1st 52.4 32.2 high 163%
Cessnock Airport AWS 16.6   20.9 30th 5.8   -0.9 17th 58.2 29.7 high 196%
Cooranbong (Lake Macquarie AWS) 17.6   21.3 31st 7.1   0.8 1st 79.8
Gosford (Narara Research Station) AWS 17.0 -0.5 21.6 30th 7.2 +2.6 1.2 1st 114.2 79.0 high 145%
Jerrys Plains Post Office 17.1 -0.3 20.6 31st 5.8 +2.0 0.2 17th 57.4 43.4 high 132%
Maitland Visitors Centre 17.7   22.2 30th 7.1   1.8 1st 64.2
Mangrove Mountain AWS 14.9   18.6 30th 6.2   0.2 22nd 28.8
Merriwa (Roscommon) 15.3   19.0 18th 3.1   -3.3 17th 74.2 36.1 high 206%
Murrurundi Gap AWS 12.1   16.5 10th 5.5   -0.3 16th 138.0
Murrurundi Post Office 14.9 -0.2 19.4 10th 4.1 +2.1 -2.6 4th 140.0 63.8 v high 219%
Nelson Bay (Nelson Head) 16.8 -0.6 22.0 30th 11.3 +2.8 9.0 1st 159.5 140.6 average 113%
Newcastle Nobbys Signal Station AWS 17.0 +0.3 21.0 30th 10.4 +2.0 6.7 1st 80.4 94.4 average 85%
Newcastle University 17.3   22.0 30th 8.9   4.0 16th 104.5
Norah Head AWS 16.9   21.0 30th 10.7   7.5 1st 131.2
Paterson (Tocal AWS) 17.0 -0.3 21.9 30th 7.8 +1.7 2.6 18th 39.8 39.4 average 101%
Peats Ridge (Waratah Road) 15.3 -0.6 19.8 30th 6.9 +0.9 3.5 16th 65.9 64.6 average 102%
Scone Airport AWS 16.0   20.1 30th 4.7   -3.7 1st 84.6
Singleton STP 16.5   20.6 30th 4.9   -1.0 1st 75.7
Williamtown RAAF 17.2 +0.2 22.0 30th 8.0 +1.7 2.1 18th 115.0 72.2 high 159%
Central Tablelands (North) (district 62)
Gulgong Post Office 15.1 +0.4 17.2 10th 4.4 +1.8 -2.0 1st 114.5 49.5 v high 231%
Mudgee Airport AWS 14.0   16.6 10th 2.8   -4.3 22nd 99.0
Nullo Mountain AWS 8.6   12.2 30th 3.4   -0.2 1st 131.8
Central Tablelands (South) (district 63)
Bathurst Agricultural Station 12.5 +1.3 16.0 30th 1.0 +0.5 -5.2 22nd 99.0 48.9 v high 202%
Bathurst Airport AWS 12.1   15.7 12th 1.4   -4.6 22nd 87.2
Cowra Research Centre (Evans St) 13.9 +0.9 17.7 9th 4.3 +0.6 -1.1 21st 99.9 52.7 v high 190%
Katoomba (Murri St) 10.5 +1.2 14.9 30th 3.4 +0.9 -1.1 16th 70.3 84.6 average 83%
Lithgow (Cooerwull) 10.7   15.5 30th 1.3   -6.8 22nd 73.5 62.4 high 118%
Mount Boyce AWS 9.3   13.8 30th 3.1   -1.4 16th 28.6
Oberon (Springbank) 9.1 +0.5 12.1 30th 0.8 +1.2 -3.8 17th 109.9 71.1 high 155%
Orange Agricultural Institute 10.1 +0.8 13.3 12th 2.3 +0.9 -2.6 22nd 154.6 91.5 high 169%
Orange Airport AWS 9.9   13.2 30th 1.2   -4.0 22nd 135.8
Orange Airport Comparison 10.3 +1.0 13.0 30th 1.5 +0.8 -3.5 22nd 127.8 88.3 high 145%
Springwood (Valley Heights) 15.3   19.1 30th 7.2   4.0 3rd 68.5 57.0 high 120%
Central Western Slopes (North) (district 64)
Coonabarabran (Namoi Street) 15.2 +0.4 18.6 13th 1.6 +1.6 -3.8 4th 146.2 55.4 v high 264%
Coonabarabran Airport AWS 13.9   17.8 13th 5.8   1.2 4th 116.6
Dunedoo Post Office 15.3 0.0 19.3 13th 4.3 +2.4 -2.6 4th 81.6 46.9 high 174%
Central Western Slopes (South) (district 65)
Cowra Airport AWS 14.3   17.7 12th 2.7   -1.9 22nd 85.4
Cowra Airport Comparison 14.3 +0.6 17.5 12th 3.1 +1.0 -1.6 22nd 96.2 53.4 v high 180%
Dubbo Airport AWS 15.6   19.6 13th 4.4   -1.6 21st 64.4
Forbes Airport AWS 14.4   19.0 12th 2.6   -3.1 22nd 57.6
Parkes (Macarthur Street) 14.8 +0.8 19.0 12th 4.1 +0.1 -2.0 22nd 100.4 49.3 v high 204%
Parkes Airport AWS 14.1   18.0 27th 3.2   -4.0 22nd 110.8 48.8 highest 227%
Wellington (Agrowplow) 15.6 +0.4 19.0 27th 4.2 +2.0 -1.7 22nd 94.0 49.3 high 191%
Metropolitan (East) (district 66)
Bankstown Airport AWS 16.9 -0.3 20.5 31st 6.6 +1.5 0.8 1st 44.6 44.6 average 100%
Canterbury Racecourse AWS 17.1   21.5 30th 7.0   1.5 1st 58.2
Holsworthy Control Range 16.9   21.0 30th 6.2   -1.2 1st 56.0
Parramatta North (Masons Drive) 17.0 -0.3 21.1 30th 6.9 +0.7 1.8 1st 45.0 45.4 average 99%
Riverview Observatory 16.9 +0.2 21.3 30th 7.9 +1.5 4.0 1st 91.6 83.9 average 109%
Sydney (Observatory Hill) 17.1 +0.8 21.1 30th 9.2 +1.2 6.0 22nd 114.6 97.4 average 118%
Sydney Airport AMO 16.8 -0.2 22.7 30th 9.1 +2.0 6.1 18th 71.8 69.0 average 104%
Sydney Harbour (Wedding Cake West) 16.4   20.3 30th 10.4   7.9 22nd
Sydney Olympic Park (Sydney Olympic Pk A 17.3   22.0 30th 8.4   4.9 22nd 53.6
Terrey Hills AWS 15.4   19.7 30th 8.3   4.5 1st 80.4
Metropolitan (West) (district 67)
Badgerys Creek AWS 16.7   20.1 31st 5.7   -1.0 1st 71.6
Horsley Park Equestrian Centre AWS 16.8   20.5 30th 7.1   1.9 1st 37.4
Liverpool (Michael Wenden Centre) 17.7   21.4 30th 5.6   0.2 1st 30.7
Penrith Lakes AWS 16.9   19.2 24th 6.4   1.4 1st 56.8
Prospect Reservoir 16.5 -0.3 21.2 30th 7.1 +1.0 2.5 17th 38.9 57.0 average 68%
Richmond RAAF 17.0   21.1 30th 5.0   -1.6 22nd 41.2
Illawarra (district 68)
Albion Park (Wollongong Airport) 17.1   20.0 30th 6.2   0.0 18th 78.2
Bellambi AWS 16.5   20.7 31st 10.5   8.3 2nd 56.0
Bowral (Parry Drive) 11.5 -0.1 16.3 30th 2.8 +0.9 -1.6 5th 50.0 46.3 high 108%
Camden Airport AWS 16.7 -0.5 20.4 31st 4.0 +1.1 -2.1 18th 69.8 39.8 high 175%
Campbelltown (Mount Annan) 17.2   20.4 31st 4.9   -0.8 1st 53.4
Jervis Bay (Point Perpendicular AWS) 15.3   19.2 30th 10.3   7.7 2nd 138.0
Kiama (Bombo Headland) 16.4   19.6 30th 10.4   6.9 18th 111.2
Moss Vale AWS 11.8   16.2 30th 1.5   -3.8 17th 28.0
Nowra RAN Air Station AWS 16.0   19.4 31st 5.9   2.8 22nd 62.8
South Coast (district 69)
Batemans Bay (Catalina Country Club) 16.3   21.0 31st 3.2   -0.8 21st 52.4 41.2 high 127%
Braidwood Racecourse AWS 11.8   15.0 24th -0.2   -5.2 2nd 70.4
Green Cape AWS 15.4   19.5 31st 9.3   6.7 20th 63.2
Merimbula Airport AWS 16.5   21.0 31st 3.6   0.0 1st 19.4
Montague Island Lighthouse 15.7 +0.3 19.1 31st 10.6 +0.7 8.3 20th 111.6 51.6 high 216%
Moruya Airport AWS 16.6   21.0 31st 4.3   0.0 1st 48.6
Moruya Heads Pilot Station 16.5 +0.3 20.2 31st 6.4 +0.5 3.2 1st 52.4 55.5 average 94%
Narooma Vmr 16.3 +0.3 21.0 31st 7.5 +0.8 4.0 1st 52.0 49.5 average 105%
Nerriga Composite 12.4 +0.7 15.1 30th -0.4 -0.6 -5.2 21st 44.6 61.5 average 73%
Ulladulla AWS 15.6   20.0 31st 9.0   6.2 21st 97.8
Southern Tablelands (Goulburn-Monaro) (district 70)
Bombala (Therry Street) 11.8 +0.8 15.7 30th -2.2 -1.1 -6.8 21st 14.8 46.4 low 32%
Bombala AWS 10.2   14.1 30th -1.0   -5.4 21st 10.2
Canberra Airport 12.8   15.7 23rd -0.3   -4.5 22nd 64.8
Canberra Airport Comparison 12.7 +1.4 15.3 23rd -0.1 0.0 -4.2 21st 21.0 40.9 low 51%
Cooma Airport AWS 10.1   14.1 29th -2.9   -8.8 21st 15.6 30.5 average 51%
Cooma Visitors Centre 11.4 0.0 14.8 29th -3.1 -0.4 -8.6 21st 16.6 29.1 average 57%
Goulburn Airport AWS 12.0   15.9 30th -0.1   -6.1 22nd 44.0
Goulburn TAFE 11.8 +0.4 16.7 30th 1.3 -0.2 -3.0 21st 48.8 42.8 average 114%
Mount Ginini AWS 3.5   6.6 27th     -5.3 2nd 69.0
Taralga Post Office 11.6 +1.4 15.1 30th 0.0 -0.6 -5.5 4th 73.7 67.4 average 109%
Tidbinbilla Nature Reserve 11.9 +1.1 14.5 23rd 0.3 +0.1 -3.0 6th 77.3 83.6 average 92%
Tuggeranong (Isabella Plains) AWS 12.8   15.5 31st -0.3   -4.8 21st 53.8
Yass (Linton Hostel) 13.0 +1.4 16.5 23rd 0.8 -0.3 -3.8 22nd 84.7 59.6 high 142%
Southern Tablelands (Snowy Mountains) (district 71)
Charlotte Pass (Kosciusko Chalet) 3.3 +1.4 6.8 23rd -7.6 -1.0 -19.6 20th 206.0 191.6 average 108%
Perisher Valley AWS 3.9   7.4 12th -5.4   -11.4 20th 166.6
Thredbo AWS 1.2 +1.3 5.8 27th -5.1 +0.2 -9.5 8th 161.8 113.4 high 143%
Thredbo Village 5.9 +0.6 9.5 13th -4.3 -0.4 -9.5 21st
Southwest Slopes (South) (district 72)
Albury Airport AWS 13.4   16.3 13th 2.3   -1.2 27th 64.4
Cabramurra SMHEA AWS 4.9   8.8 27th -0.6   -3.8 20th 93.6
Hume Reservoir 13.2 +1.0 16.5 10th 3.8 -0.1 0.4 22nd 75.4 76.6 average 98%
Khancoban AWS 11.3   15.9 13th 0.0   -2.9 21st 90.4
Tumbarumba Post Office 11.2 +0.6 14.0 12th -1.2 -1.0 -5.0 21st 96.8 105.2 average 92%
Wagga Wagga AMO 13.1 +0.4 16.4 10th 2.6 -0.1 -3.2 22nd 70.6 55.2 average 128%
Southwest Slopes (North) (district 73)
Burrinjuck Dam 12.9 +1.4 16.5 25th 3.0 0.0 0.1 22nd 139.8 102.5 high 136%
Cootamundra Airport 13.2   16.5 28th 1.0   -4.5 23rd 88.4
Gundagai (William St) 12.9   16.7 28th 1.8   -2.7 5th 82.6
Quandialla Post Office 14.1 -0.2 18.5 28th 4.2 +1.3 0.2 18th 73.3 44.4 high 165%
Temora Airport 13.1   16.4 28th 1.9   -2.9 21st 58.6
Wyalong Post Office 13.7 -0.3 16.9 27th 3.3 +0.3 -0.5 22nd 77.2 42.1 v high 183%
Young Airport 13.3   16.9 28th 1.2   -4.6 22nd 57.6
Riverina (East) (district 74)
Corowa Airport 13.3 +0.3 16.0 9th 2.8 0.0 -1.5 27th 50.4 54.7 average 92%
Deniliquin Airport AWS 13.1   16.4 30th 2.6   -2.2 27th 19.4
Narrandera Airport 13.5   16.5 27th 2.5   -1.6 7th 34.8 37.4 average 93%
Narrandera Golf Club 13.3 -0.8 16.3 27th 3.0 -0.2 -1.3 20th 39.4 41.1 average 96%
Tocumwal Airport 13.1 -0.8 15.9 30th 2.9 -0.4 -1.7 27th 35.3 42.2 average 84%
Yanco Agricultural Institute 13.2   16.0 12th 4.1   0.0 25th 34.2
Riverina (West) (district 75)
Griffith Airport AWS 13.9 -0.5 16.8 27th 3.3 -0.2 -0.9 20th 40.2 33.5 average 120%
Hay (Miller Street) 14.3 -0.8 17.1 11th 3.0 -0.5 -1.2 8th 38.9 31.1 high 125%
Hay Airport AWS 14.3   17.4 12th 2.3   -1.7 8th 29.6
Hillston Airport 14.9 0.0 19.0 11th 2.8 -1.0 -1.5 8th 80.6 31.3 v high 258%
Lake Cargelligo Airport 14.4 -1.1 17.2 11th 4.4 +1.1 0.5 7th 39.9 34.0 average 117%

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 10 am on Monday 2 August 2010. Some checks have been made on the data, but it is possible that results will change as new information becomes available.

A note about deciles: Deciles are used to give an element (in this case rainfall or temperature) a ranking. Deciles are calculated by arranging the totals in ascending order (from lowest to highest) then splitting them into 10 equal groups (thus the groups are called deciles). The first group would be in decile range one, the second group in decile range two, etc up to the highest annual totals (highest 10 per cent) being in decile range 10.

1Averages: Averages are based on the period 1961 to 1990 which is a convention of the World Meteorological Organisation

Normals are long-term averages 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 for temperature and less than 30 years of record for rainfall, as they cannot then be calculated reliably.

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