Wednesday, 1 August 2007 - Monthly Climate Summary for South Australia - Product code IDCKGC13R0
July temperatures were generally below average across most of the State. Rainfall was generally below to very much below average over most of South Australia, apart from the southeast.
Rainfall totals were below to very much below average over most of the Pastoral Districts, with some stations reporting lowest July totals on record.
Rainfall totals were generally below 10 mm, with most totals less than 5 mm. Nonning and Yardea in the Northwest district reported a total of 23 mm, the highest amount in the Pastoral Districts, while there were several stations that reported no rainfall.
Rainfall totals below to very much below average were reported from much of the Agricultural districts including Yorke and Eyre Peninsulas and Kangaroo Island. On, and to the east and southeast of the Mount Lofty Ranges, rainfall was near or slightly above average for the month.
The highest total for the state was 182 mm at Bridgewater, with much of the Mount Lofty Ranges recording totals above 100 mm. Totals between 20−50 mm were generally reported elsewhere.
White Flat on Eyre Peninsula reported lowest July total on record with 10 mm.
Some sites had their lowest total July rainfall on record.
Mean maximum temperatures for July were near average in the agricultural areas, and up to 2°C above average in the Pastoral areas.
In the Pastoral districts mean maximum temperatures ranged from 16.1°C at Yunta to 21.5°C at Oodnadatta Airport.
Mean maximum temperatures over the Agricultural districts ranged from 11.3°C at Mt Crawford in the Mount Lofty Ranges to 19.6°C at Nullarbor in the Western Agricultural district.
The highest maximum recorded during July was 30.5°C at Nullarbor on the 31st, an equal record daily July maximum for this station in the 22 year record.
Mean minimum temperatures for July were generally near or up to 2°C below average.
In the pastoral districts mean minima at Marla was 2.2°C below average. Mean minimum temperatures ranged from 2.4°C at Yunta Airport to 6.5°C at Coober Pedy Airport.
Over the Agricultural districts mean monthly minimum temperatures ranged from 1.8°C at Yongala to 11.8°C at Neptune Island.
The lowest minimum temperature recorded during July was minus 6.3°C at Yunta in the North East Pastoral district on the 20th.See a map of mean maximum temperatures. See a map of maximum temperature anomalies. See a map of mean minimum temperatures. See a map of minimum temperature anomalies.
|30.5°C at Marla Police Station on the 31st|
|Warmest days on average|
Highest mean daily maximum temperature
|21.5°C at Oodnadatta Airport|
|Coolest days on average|
Lowest mean daily maximum temperature
|11.3°C at Mount Crawford Fire Tower|
Lowest daily maximum temperature
|7.0°C at Mount Crawford Fire Tower on the 19th|
|−6.3°C at Yunta Airstrip on the 20th|
|Coolest nights on average|
Lowest mean daily minimum temperature
|1.8°C at Yongala|
|Warmest nights on average|
Highest mean daily minimum temperature
|11.8°C at Neptune Island|
Highest daily minimum temperature
|15.7°C at Coober Pedy Airport on the 3rd|
Highest total rainfall
|181.6 mm at Bridgewater|
|Highest wind gust||122 km/h at Neptune Island on the 4th|
|Record lowest total July rainfall|
for July 2007 (mm)
|Port Lincoln (White Flat)||10.2||21.6||in 1997||85||78.9|
|Oodnadatta Airport||0.0||= 0.0||in 2004||59||10.4|
In the following table, certain key sites have been highlighted to make them easier to identify.
|Summary statistics for July 2007|
|Northwest (district 16)|
|Coober Pedy Airport||19.8||29.5||31st||6.5||1.9||21st||0.0|
|Marla Police Station||21.4||+1.5||30.5||31st||2.9||−2.2||−3.0||19th||0.0||14.3||lowest||0%|
|Far North (district 17)|
|Leigh Creek Airport||18.3||+1.9||25.4||2nd||4.6||−0.1||−0.6||19th||4.4||18.5||low||24%|
|Western Agricultural (district 18)|
|Ceduna AMO||19.0||+1.6||27.3||24th||5.1||−0.6||−1.6||16th||14.4||39.8||very low||36%|
|Port Augusta Aero||18.8||25.7||25th||4.2||−2.5||22nd||7.6|
|Upper North (district 19)|
|Northeast (district 20)|
|Lower North (district 21)|
|Clare High School||13.1||20.5||25th||3.8||−2.5||15th||55.0|
|Port Pirie Aerodrome||16.9||23.4||25th||5.2||−0.5||15th||22.9|
|Port Pirie Zinifex Comparison||17.0||+0.6||22.5||25th||7.4||−0.2||1.0||15th||23.6||33.8||normal||70%|
|Yorke Peninsula (district 22A)|
|Kangaroo Island (district 22B)|
|Cape Borda AWS||14.3||17.5||2nd||9.0||4.4||9th||75.0|
|Cape Borda Comparison||14.2||+0.3||17.7||2nd||9.4||+0.3||5.9||17th||77.0||104.2||low||74%|
|Adelaide Plains (district 23A)|
|County Light (district 23B)|
|Mount Lofty Ranges (district 23°C)|
|Hindmarsh Island AWS||15.2||21.2||25th||8.0||2.3||22nd||31.2|
|Kuitpo Forest Reserve||12.7||18.2||24th||7.0||3.0||20th||95.8|
|Mount Crawford Fire Tower||11.3||17.5||25th||6.1||1.5||20th||116.6|
|Upper Murray Valley (district 24A)|
|Loxton Research Centre||15.9||+0.1||22.7||24th||3.1||−0.7||−4.1||22nd||21.6||28.5||normal||76%|
|Lower Murray Valley (district 24B)|
|Murray Bridge Comparison||16.5||+0.3||22.7||24th||5.3||−0.2||−0.6||22nd||35.5||35.2||normal||101%|
|Murray Mallee (district 25A)|
|Upper Southeast (district 25B)|
|Lower Southeast (district 26)|
|Mount Gambier Aero||13.7||+0.6||18.2||25th||5.6||+0.5||1.3||21st||95.4||98.8||normal||97%|
This statement has been prepared based on information available at 4 pm on Wednesday 1 August 2007. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
Normals 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 "normal" rain.
The Rank indicates how rainfall this time compares with the climate record for the site,
based on the
(very low rainfall is in decile 1, low in decile 2 or 3,
normal in decile 4 to 7, high in decile 8 or 9
and very high is in decile 10).
The Fraction of normal shows how much rain has fallen this time as a percentage of the long-term mean.