Friday, 1 June 2007 - Monthly Climate Summary for South Australia - Product code IDCKGC13R0
Much of the State experienced above average autumn rainfall and above average temperatures for both autumn and May.
Mean maximum and mean minimum temperatures were 1°C to 3°C above normal across most of the state through both autumn and May, with autumn records being set at many locations.
Rainfall for May was generally average over the Pastoral Districts, though much of the Far North reported above to very much above average totals. There were some isolated pockets of below average rainfall through southern parts of the Northwest and Far North districts.
Rainfall amounts across the Pastoral districts were mostly of the order of 10 mm or more, with the highest total reported from the Moomba Airport with 59 mm. Amounts below 10 mm were confine to the south-western region of the Northwest Pastoral district.
Rainfall totals over the Agricultural Districts were generally average. Isolated pockets of below average rainfall were confined to northern parts of the Eyre Peninsula abutting the pastoral districts and Most of the Lower North. Most of Kangaroo Island, the southern tips of Yorke and Eyre Peninsulas and most of the Lower Southeast districts reported above average rainfall, with isolated pockets of very much above average falls.
Rainfall totals over 100 mm were confined to the higher parts of the Mount Lofty Ranges district and also most of the Lower Southeast and Kangaroo Island districts. Rainfall totals mostly between 50 and 100 mm were reported from the remainder of the Mount Lofty Ranges, and parts of the Kangaroo Island, Yorke Peninsula, Upper Southeast, and much of the Adelaide Plains and Western Agricultural districts. Elsewhere, totals were generally between 20 and 50 mm.
The highest rainfall totals recorded in the Agricultural districts during May were 152 mm at Uraidla and 150 mm at Lenswood, both in the Mount Lofty Ranges district.
All centres across South Australia recorded above average mean May maximum temperatures.
Mean maximum temperatures for May were about 1°C to 2°C above normal in the south of the state and up to 3°C above normal in the north. In the Pastoral districts mean maximum temperatures ranged from 20.6°C at Nonning and Yunta and up to 25.7°C at Marree. Mean maximum temperatures over the Agricultural districts ranged from 15.6°C at Mt Crawford in the Mount Lofty Ranges to 23.0°C at Port Augusta in the Upper North district.
The highest maximum recorded during May was 32.4°C at Oodnadatta Aerodrome on the 7th.
Mean minimum temperatures for May were almost all above average.
In the Pastoral districts mean minimum temperatures ranged from 7.9°C at Nonning to 12.8°C at Moomba Airport. Mean minimum temperatures over the Agricultural districts ranged from 7.1°C at Yongala in the Flinders Ranges to 14.5 at Neptune Island.
Several centres in the southeast reported record May mean minimum temperatures (see table).
The lowest minimum temperature recorded during May was −2.2°C at Yongala in the Upper North on the 26th.See a map of mean maximum temperatures. See a map of maximum temperature anomalies.
Some sites had their warmest May night (highest daily minimum temperature) on record.
Some sites had their highest May mean daily minimum temperature on record.See a map of mean minimum temperatures. See a map of minimum temperature anomalies.
A strong front passed over the southern agricultural areas of the state on Tuesday 29, resulting in severe wind gusts with Minlaton AWS recording a peak gust of 95 km/h. In the wake of this front, strong and at times gale force west to southwest winds with showers and isolated thunderstorms, brought down a number of trees and damaged some roofs. The Port Lincoln SES recorded a gust of 105 km/h with a thunderstorm while the Minlaton AWS recorded squally conditions throughout the afternoon with showers resulting in peak gusts of 95 km/h on two occasions; similar squally conditions were recorded by the Cape Willoughby AWS where the peak gust was 100 km/h.
In the Adelaide Region numerous trees were downed or limbs snapped off particularly in the southern suburbs.
On the Monday14thunderstorms resulted in hail of about 3cm at Cleve and Heggaton (about 30km north of Cleve). Heavy rainfall associated with thunderstorms also resulted in 42 mm in 40 minutes near Kimba and flash flooding that washed a car off the road between Mangalo and Cleve.
Several houses were damaged and trees blown down or snapped off at Moana on Monday 21. Damage was assessed as a tornado of intensity F0.
|33.0°C at Marla Police Station on the 7th|
|Warmest days on average|
Highest mean daily maximum temperature
|25.7°C at Marree Comparison|
|Coolest days on average|
Lowest mean daily maximum temperature
|15.6°C at Mount Crawford Fire Tower|
Lowest daily maximum temperature
|9.2°C at Mount Crawford Fire Tower on the 29th|
|−2.2°C at Yongala on the 26th|
|Coolest nights on average|
Lowest mean daily minimum temperature
|7.1°C at Yongala|
|Warmest nights on average|
Highest mean daily minimum temperature
|14.5°C at Neptune Island|
Highest daily minimum temperature
|22.5°C at Arkaroola on the 3rd|
Highest total rainfall
|166.2 mm at Flinders Chase (Rocky River)|
|Highest wind gust||128 km/h at Cape Willoughby on the 29th|
|Record highest May mean daily minimum temperature|
Mean daily minimum
for May 2007 (°C)
|Robe Comparison||13.1||12.4||in 1975||123||10.2|
|Mount Barker||9.8||9.7||in 1975||107||6.6|
|Lameroo Comparison||9.9||9.8||in 1988||93||6.9|
|Mount Gambier Aero||10.5||9.8||in 1988||66||7.2|
|Cape Borda Comparison||12.8||12.5||in 1975||60||11.2|
|Adelaide Airport||12.1||12.0||in 1958||53||9.5|
|Adelaide (Kent Town)||12.1||11.6||in 1988||31||10.1|
|Record highest May daily minimum temperature|
Highest daily minimum
in May 2007 (°C)
|Arkaroola||22.5||on the 3rd||19.1||on the 21st in 1999||30||7.2|
In the following table, certain key sites have been highlighted to make them easier to identify.
|Summary statistics for May 2007|
|Northwest (district 16)|
|Coober Pedy Airport||23.6||30.7||7th||11.3||5.6||30th||8.4|
|Marla Police Station||25.3||+2.1||33.0||7th||9.8||+0.5||1.0||31st||7.3||13.1||normal||56%|
|Far North (district 17)|
|Leigh Creek Airport||22.6||+1.7||27.7||7th||10.0||+1.2||2.9||31st||13.4||16.2||normal||83%|
|Western Agricultural (district 18)|
|Port Augusta Aero||23.0||27.8||13th||9.5||1.0||26th||9.2|
|Upper North (district 19)|
|Northeast (district 20)|
|Lower North (district 21)|
|Clare High School||17.9||23.0||1st||8.4||0.7||26th||25.2|
|Port Pirie Aerodrome||21.7||26.4||7th||10.6||2.1||26th||12.3|
|Port Pirie Zinifex Comparison||21.8||+1.5||27.0||7th||13.2||+2.5||6.5||26th||14.4||38.1||low||38%|
|Yorke Peninsula (district 22A)|
|Kangaroo Island (district 22B)|
|Cape Borda AWS||17.6||21.7||1st||12.3||6.4||30th||125.2|
|Cape Borda Comparison||17.5||+1.2||21.0||1st||12.8||+1.7||8.9||22nd||155.8||79.6||very high||196%|
|Adelaide Plains (district 23A)|
|County Light (district 23B)|
|Mount Lofty Ranges (district 23°C)|
|Hindmarsh Island AWS||19.9||27.1||1st||12.2||6.8||26th||14.2|
|Kuitpo Forest Reserve||17.1||23.7||1st||11.2||6.1||30th||63.6|
|Mount Crawford Fire Tower||15.6||22.2||1st||9.8||3.8||30th||76.4|
|Upper Murray Valley (district 24A)|
|Loxton Research Centre||21.6||+2.2||27.3||14th||8.8||+2.5||1.5||26th||46.2||22.8||high||203%|
|Lower Murray Valley (district 24B)|
|Murray Bridge Comparison||21.3||+1.7||27.3||1st||9.7||+1.8||4.2||30th||21.0||34.9||low||60%|
|Murray Mallee (district 25A)|
|Upper Southeast (district 25B)|
|Lower Southeast (district 26)|
|Mount Gambier Aero||17.8||+1.7||23.8||14th||10.5||+3.2||5.6||12th||122.6||71.8||high||171%|
This statement has been prepared based on information available at 2 pm on Friday 1 June 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.