Friday, 1 August 2008 - Monthly Climate Summary for South Australia - Product code IDCKGC13R0
Rainfall totals were near average in the west tending below to very much below average in central and eastern areas.
Rainfall totals were typically 5 to 10 mm, apart from the northern and northeastern areas were some locations recorded no rainfall for the month. Gluepot in the Northeast Pastoral area recorded 21.5 mm, the highest amount in the Pastoral Districts.
Rainfall totals were generally near average across the agricultural areas. Above average rainfall totals tended to be in coastal and ranges areas exposed to what was a predominately west to southwest air-stream through the month.
Most of the agricultural areas received totals in the 50 to 80 mm range tending to 20 to 30 mm in the northern parts.
Many locations on Kangaroo Island and in the lower South East and the Mount Lofty Ranges saw totals exceeding 100 mm. The highest total for the state was 263 mm at Woodhouse (Piccadilly).
Across the longer term, rainfall for the growing season to date is generally below average across South Australia, and for the year to date. Longer term rainfall deficiencies continue across 2 to 10 year rainfall averages for the South Australian agricultural areas and the Murray Darling Basin.
( See rainfall charts)
Some sites had their lowest total July rainfall on record.
State-wide the monthly mean July temperature (the average of the maximum and minimum temperatures) was 0.01 degrees above the average for the South Australian agricultural areas, and 0.6°C above average for South Australia as a whole, looking at the July records since 1910.
Mean maximum temperatures for July were near to below average in the central and eastern agricultural areas, generally up to 1°C below average, and generally up to 2°C above average over the remaining agricultural areas and the pastoral districts.
In the Pastoral districts mean maximum temperatures ranged from 14.7°C at Yunta to 20.5°C at Oodnadatta Airport.
Mean maximum temperatures over the Agricultural districts ranged from 10.4°C at Mt Crawford in the Mount Lofty Ranges to 18.1°C at Ceduna in the Western Agricultural district.
The highest maximum recorded during July was 30.6°C at Oodnadatta Airport on the 31st of July. The lowest was 6.2°C at Mount Crawford on the 7th of July.
Mean minimum temperatures for July were generally near or up to 1°C below average in the east tending to near and up to 1°C above average in the west and north of the state.
Mean minimum temperatures ranged from 2.3°C at Yunta Airport to 6.3°C at Coober Pedy Airport.
Over the Agricultural districts mean monthly minimum temperatures ranged from 1.9°C at Yongala to 11.2°C at Neptune Island.
The lowest minimum temperature recorded during July was −5.8°C at Yunta in the North East Pastoral district on the 24th. Streaky bay recorded the warmest overnight temperature with 13.9°C on the 1st of July.See a map of mean maximum temperatures.
Some sites had their lowest July temperature on record.
Some sites had their warmest July night (highest daily minimum temperature) on record.See a map of mean minimum temperatures.
|30.6°C at Oodnadatta Airport on the 31st|
|Warmest days on average|
Highest mean daily maximum temperature
|20.5°C at Oodnadatta Airport|
|Coolest days on average|
Lowest mean daily maximum temperature
|10.4°C at Mount Crawford Fire Tower|
Lowest daily maximum temperature
|6.2°C at Mount Crawford Fire Tower on the 7th|
|−5.8°C at Yunta Airstrip on the 24th|
|Coolest nights on average|
Lowest mean daily minimum temperature
|1.9°C at Yongala|
|Warmest nights on average|
Highest mean daily minimum temperature
|11.2°C at Neptune Island|
Highest daily minimum temperature
|13.9°C at Streaky Bay on the 1st|
Highest total rainfall
|263.2 mm at Piccadilly (Woodhouse)|
|Highest wind gust||119 km/h at Cape Willoughby on the 14th|
|Record lowest total July rainfall|
for July 2008 (mm)
|Goolwa Council Depot||5.2||15.2||in 1924||146||61.0|
|Oodnadatta Airport||0.0||= 0.0||in 2007||60||10.2|
|Record highest July daily minimum temperature|
Highest daily minimum
in July 2008 (°C)
|Maitland||12.0||on the 2nd||= 12.0||on the 18th in 1974||29||6.9|
|Record lowest July temperature|
in July 2008 (°C)
|Parafield Airport||−1.9||on the 28th||−1.4||on the 6th in 1997||52||6.3|
|Rosedale (Turretfield Research Centre)||−2.5||on the 28th||−2.3||on the 21st in 1997||47||5.6|
|Summary statistics for July 2008|
|Northwest (district 16)|
|Coober Pedy Airport||18.9||26.1||31st||6.3||1.1||24th||0|
|Marla Police Station||20.4||+0.5||30.0||31st||4.9||0.0||−1.5||23rd||3.7||13.8||normal||27%|
|Woomera Aerodrome||17.2||+0.3||23.3||19th||5.6||−0.3||0.7||25th||0.8||15.1||very low||5%|
|Far North (district 17)|
|Leigh Creek Airport||16.6||+0.1||22.7||19th||5.1||+0.4||0.1||25th||2.6||17.7||low||15%|
|Western Agricultural (district 18)|
|Port Augusta Aero||17.1||22.8||19th||5.3||−2.4||25th||11.8|
|Upper North (district 19)|
|Northeast (district 20)|
|Lower North (district 21)|
|Clare High School||11.9||16.8||31st||3.8||−2.2||28th||108.2|
|Port Pirie Aerodrome||15.7||20.0||19th||5.8||−2.7||28th||32.9|
|Port Pirie Nyrstar Comparison||16.2||−0.3||19.5||19th||8.2||+0.6||1.0||28th||45.9||33.9||high||135%|
|Yorke Peninsula (district 22A)|
|Kangaroo Island (district 22B)|
|Adelaide Plains (district 23A)|
|County Light (district 23B)|
|Mount Lofty Ranges (district 23°C)|
|Hindmarsh Island AWS||14.7||18.7||31st||7.6||−0.1||24th||61.0|
|Kuitpo Forest Reserve||11.8||15.6||19th||5.8||1.5||24th||168.6|
|Mount Crawford Fire Tower||10.4||14.7||31st||4.9||1.8||24th||147.2|
|Upper Murray Valley (district 24A)|
|Loxton Research Centre||15.5||−0.3||21.4||31st||3.9||+0.1||−2.5||24th||27.4||28.7||normal||95%|
|Lower Murray Valley (district 24B)|
|Murray Bridge Comparison||15.8||−0.3||21.4||31st||5.4||0.0||−1.6||24th||31.1||35.1||normal||89%|
|Murray Mallee (district 25A)|
|Upper Southeast (district 25B)|
|Lower Southeast (district 26)|
|Mount Gambier Aero||12.6||−0.6||15.8||13th||4.9||−0.2||−0.4||28th||86.8||98.6||normal||88%|
This statement has been prepared based on information available at 5 pm on Friday 1 August 2008. 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.