Friday, 1 April 2011 - Monthly Climate Summary for South Australia - Product code IDCKGC13R0
South Australia in March 2011: Cool and wet
- Wettest start to the year (January, February and March) on record for South Australia.
- 4th wettest March on record for South Australia.
- 22 locations recorded their wettest March day on record. For Mungeranie and Kalamurina it was their wettest single day for any time of year.
- 25 locations had their wettest March on record. It was Kalamurina's wettest month on record over all months of the year.
- Coldest March maximum temperatures on record for South Australia.
- Maximum temperatures were up to 4 degrees below average.
- Cape Willoughy, Hawker and Arkaroola had their coldest mean March maximum temperatures on record.
- Minimum temperatures up to 1 degree above average.
South Australia received 3 times the March average, with March 2011 being the 4th wettest March on record for the state as a whole. This was due in large part to two heavy rainfall events. Tropical moisture ahead of a surface trough produced showers and thunderstorms over eastern parts of the state on the 7th and 8th of March, with heavy falls recorded at several locations. On the 20th and 21st of March, the passage of a trough of low pressure generated scattered showers and isolated thunderstorms over large parts of the state.
Record falls were reported in the southeast in the 24 hours to 9am on the 21st. Record March daily rainfall totals were recorded at 22 locations with these events, see March daily rainfall records. For Mungeranie and Kalamurina this was the wettest day for any time of year. 25 locations also had their wettest March on record as a result, see highest total March rainfall records. Kalamurina had its wettest month for any time of year with 190.4 mm.
South Australia has had its wettest start to the year (January, February and March) on record, receiving about 3 times the average for this period. The previous wettest start to the year was in 1974.
Rainfall over the pastoral districts was average to well above average; with totals ranging from 20 mm up to about 160 mm. Kalamurina was the wettest location with 190.4 mm recorded. Oodnadatta had close to 9 times its March average (14.0 mm) with 128.2 mm.
Rainfall was generally well above average across the agricultural districts, with a number of locations on Yorke Peninsula, Kangaroo Island, and through the Mount Lofty Ranges, Adelaide Plains, and the Murray Mallee having record highest March rainfall. Rainfall totals ranged from about 20 to 80 mm over the Western Agricultural District, increasing to 50 to 100 mm elsewhere. Areas seeing records for March rainfall saw totals often in excess of 100mm, with some locations in the Mount Lofty Ranges and Riverland receiving close to 190 mm. The wettest overall was Cudlee Creek (Millbrook) with 188.0 mm.Some sites had their highest total March rainfall on record. Some sites had their highest total March rainfall for at least 25 years. Some sites had their highest March daily rainfall on record. See a map of rainfall deciles.
The mean temperature (the average of the maximum and minimum temperatures) for South Australia as a whole in March 2011 was 22.5 °C, which is 1.3 °C below the long-term average.
The area-averaged mean maximum temperature of 28.4°C was 2.9°C below the long-term March average for South Australia as a whole. This is the lowest March mean maximum temperature for South Australia. The previous coldest March was in 1981.
Mean maximum temperatures over the pastoral districts of the state were 2°C to 4°C below average, predominantly due to the above average rainfall received this month. Average daily temperatures ranged from 25.4°C at Yunta in the Northeast district to 31.6°C at Moomba Airport in the Far North district. The highest recorded maximum temperature for March was 39.0°C at Marree on the 16th of the month.
Over the agricultural areas mean maximum temperatures were also up to 4 degrees below the long-term average. Average daily temperatures across the agricultural areas ranged from 18.6°C at Mount Lofty to 27.6°C at Port Augusta Aero in the Western Agricultural District. The lowest recorded maximum temperature for March was 12.4°C at Mount Lofty on the 24th of the month, with the warmest day recorded at Port Augusta with 37.8°C on the 6th. Maitland set a new lowest daily maximum temperature record for March on the 23rd with 16.8°C.
Mean minimum temperatures were generally up to 1 degree above average across South Australia this March, largely due to increased cloud cover and humidity levels.
Over the Pastoral districts average minimum temperatures ranged from 13.1°C at Gluepot and at Yunta in the Northeast District to 20.4°C at Oodnadatta in the Far North District. The lowest overnight minimum temperature in the pastorals for March was 4.0°C at Arkaroola on the 25th, whilst the highest was 28.0°C recorded at Oodnadatta Airport on the 1st.
Over the agricultural areas average overnight minimum temperatures ranged from 10.0°C at Coonawarra to 17.0°C at Port Augusta Aero. The lowest recorded daily minimum temperature for March in the Agricultural districts was 1.3°C at Keith on the 31st, whilst the highest was 24.0 °C at Port Pire on the 8th.Some sites had their coldest March day (lowest maximum temperature) on record. Some sites had their lowest March mean daily maximum temperature on record. Some sites had their lowest March mean daily maximum temperature for at least 25 years.
|Extremes in March 2011|
|Hottest day||39.0 °C at Marree Comparison on the 16th|
|Warmest days on average||31.6 °C at Moomba Airport|
|Coolest days on average||18.6 °C at Mount Lofty|
|Coldest day||12.4 °C at Mount Lofty on the 24th|
|Coldest night||1.3 °C at Keith (Munkora) on the 31st|
|Coolest nights on average||10.0 °C at Coonawarra|
|Warmest nights on average||20.4 °C at Oodnadatta Airport|
|Warmest night||28.0 °C at Oodnadatta Airport on the 1st|
|Warmest on average overall||25.9 °C at Moomba Airport|
|Coolest on average overall||14.4 °C at Mount Lofty|
|Wettest overall||190.4 mm at Kalamurina|
|Highest wind gust||81 km/h at Cape Willoughby on the 7th|
|Record highest March daily rainfall|
Highest daily rainfall
in March 2011 (mm)
|Warooka||71.4||on the 21st||54.2||on the 1st in 1992||129|
|Hallett||52.8||on the 20th||43.2||on the 29th in 1884||128|
|Mount Pleasant||70.4||on the 9th||54.6||on the 6th in 1910||126|
|Mount Bryan||49.0||on the 21st||43.7||on the 5th in 1910||112|
|American River||62.0||on the 21st||48.5||on the 18th in 1973||110|
|Palmer||84.4||on the 21st||68.0||on the 16th in 1985||110|
|Smithfield||64.0||on the 8th||63.0||on the 16th in 1985||110|
|Mintaro||49.2||on the 21st||48.5||on the 5th in 1910||109|
|Arno Bay||58.0||on the 8th||54.6||on the 28th in 1947||103|
|Penneshaw||42.2||on the 8th||41.9||on the 31st in 1959||100|
|Smoky Bay||57.5||on the 19th||44.2||on the 11th in 1969||99|
|Price||49.0||on the 8th||39.8||on the 27th in 2006||68|
|Oodnadatta Airport||114.0||on the 19th||55.4||on the 3rd in 1955||63|
|Mungeranie||112.2||on the 8th||91.9||on the 9th in 1908||59|
|Burra Community School||50.4||on the 21st||37.6||on the 4th in 1983||51|
|Freeling||59.2||on the 21st||37.4||on the 27th in 2006||49|
|Nildottie||49.8||on the 21st||37.0||on the 16th in 1996||47|
|Neptune Island||60.8||on the 21st||43.2||on the 1st in 1983||46|
|Blanchetown Lock 1||61.2||on the 21st||30.8||on the 4th in 1983||44|
|Adelaide (Magill Secure Care Centre)||45.0||on the 8th||=45.0||on the 2nd in 1981||43|
|Kalamurina||134.0||on the 8th||33.0||on the 4th in 1885||27|
|Heathfield Works Depot||43.4||on the 24th||38.8||on the 23rd in 2000||26|
|Record highest total March rainfall|
for March 2011 (mm)
|Mount Pleasant||179.6||119.6||in 1877||134||26.4|
|Two Wells||117.8||95.4||in 1906||131||19.3|
|Swan Reach||116.0||98.3||in 1921||113||17.2|
|American River||103.2||66.8||in 1992||110||18.1|
|Cudlee Creek (Millbrook)||188.0||136.4||in 1981||97||30.6|
|Whyalla (Mullaquana)||77.4||75.6||in 1989||94||14.5|
|Stockport (Clifton)||70.6||67.5||in 1985||52||22.8|
|Blanchetown Lock 1||97.8||52.0||in 1969||44||16.9|
|Williamstown (South Para Reservoir)||166.6||84.4||in 1975||44||30.3|
|Port Kenny||66.0||64.3||in 1971||42||15.0|
|Adelaide (Hope Valley Reservoir)||109.2||101.0||in 1983||32||30.2|
|Heathfield Works Depot||120.4||116.8||in 1992||26||38.9|
|Highest total March rainfall for at least 25 years|
for March 2011 (mm)
Most recent March
at least this wet
|Hamley Bridge||89.8||120.9||in 1910||101||20.1|
|Mannum Council Depot||118.2||137.0||in 1910||100||18.1|
|Rosedale (Turretfield Research Centre)||86.0||97.3||in 1910||100||20.4|
|Farrell Flat||76.0||86.3||in 1913||96||18.5|
|Gawler Council Depot||99.4||125.2||in 1877||86||24.1|
|Purnong (Claypans)||128.3||144.3||in 1947||64||18.4|
|Adelaide (Salisbury Bowling Club)||108.0||136.6||in 1947||62||22.4|
|Adelaide (Tea Tree Gully Council)||122.5||130.6||in 1947||62||27.9|
|Oodnadatta Airport||128.2||223.8||in 1955||46||14.0|
|Port Kenny (Mount Cooper)||94.2||100.9||in 1971||35||16.7|
|Lenswood Research Centre||122.0||127.7||in 1981||30||41.9|
|Adelaide (Kent Town)||78.0||106.0||in 1983||28||24.9|
|Adelaide Airport||76.4||112.2||in 1983||28||21.7|
|Echunga Golf Course||85.0||98.4||in 1983||28||31.7|
|Edinburgh RAAF||116.2||139.6||in 1983||28||25.9|
|Langhorne Creek||82.4||102.2||in 1983||28||21.0|
|Lucindale Post Office||77.2||114.8||in 1983||28||25.9|
|Mount Barker||80.8||89.2||in 1983||28||31.3|
|Murray Bridge Comparison||90.6||95.2||in 1983||28||20.4|
|Neptune Island||76.6||87.8||in 1983||28||20.2|
|Penola Post Office||88.3||121.4||in 1983||28||30.7|
|Point Pass||81.2||85.6||in 1983||28||18.3|
|Streaky Bay||51.4||102.4||in 1983||28||14.9|
|Tailem Bend||89.1||131.6||in 1983||28||21.8|
|Adelaide (Pooraka)||76.4||124.0||in 1983||27||23.6|
|Adelaide (Seaton)||72.2||120.2||in 1983||26||19.9|
|Cooke Plains||57.5||63.2||in 1985||26||20.3|
|Parafield Airport||103.8||=103.8||in 1983||26||22.6|
|Smoky Bay||81.7||82.8||in 1983||26||14.0|
|Bolivar Treatment Works||97.2||138.6||in 1983||25||26.1|
|Record lowest March daily maximum temperature|
Lowest daily maximum
in March 2011 (°C)
|Maitland||16.8||on the 23rd||17.0||on the 27th in 2008||30||25.9|
|Record lowest March mean daily maximum temperature|
Mean daily maximum
for March 2011 (°C)
|Eudunda||22.8||= 22.8||in 1981||46||25.7|
|Cape Willoughby||18.7||19.3||in 1997||43||20.7|
|Andamooka||29.2||= 29.2||in 1989||41||32.3|
|Lowest March mean daily maximum temperature for at least 25 years|
Mean daily maximum
for March 2011 (°C)
Most recent March
at least this cool
|Lameroo Comparison||24.8||24.3||in 1946||65||27.6|
|Mount Barker||20.9||20.8||in 1946||65||24.7|
|Rosedale (Turretfield Research Centre)||24.3||24.2||in 1981||30||27.3|
|Summary statistics for March 2011|
|Northwest (district 16)|
|Coober Pedy Airport||28.4||35.3||16th||18.1||10.4||23rd||38.4|
|Marla Police Station||29.6||-3.2||36.1||18th||18.4||+0.6||10.0||28th||28.2||23.7||high||119%|
|Roxby Downs (Olympic Dam Aerodrome)||29.2||35.7||12th||17.5||8.8||27th||10.0|
|Far North (district 17)|
|Leigh Creek Airport||28.5||-2.8||34.5||15th||18.0||+0.6||9.9||27th||58.6||17.9||v high||327%|
|Marree Comparison||31.4||-2.5||39.0||16th||17.9||-0.1||10.0||19th||55.9||14.3||v high||391%|
|Oodnadatta Airport||31.2||-2.5||37.3||18th||20.4||+1.2||12.7||27th||128.2||14.0||v high||916%|
|Western Agricultural (district 18)|
|Coulta (Coles Point)||23.7||32.6||6th||14.4||8.5||31st||18.8|
|Neptune Island||20.2||-0.9||25.0||7th||16.0||0.0||14.5||2nd||76.6||20.2||v high||379%|
|North Shields (Port Lincoln AWS)||22.2||33.5||7th||15.2||10.0||30th||39.6|
|Port Augusta Aero||27.6||37.8||6th||17.0||11.2||26th||43.0|
|Streaky Bay||25.0||-2.2||35.9||6th||14.7||0.0||9.9||31st||51.4||14.9||v high||345%|
|Upper North (district 19)|
|Northeast (district 20)|
|Gluepot Reserve (Gluepot)||26.1||35.2||7th||13.1||5.3||31st||45.8|
|Lower North (district 21)|
|Clare High School||23.0||33.2||6th||13.0||7.0||3rd||98.4|
|Port Pirie Aerodrome||26.9||36.5||6th||15.3||8.2||26th||79.5|
|Port Pirie Nyrstar Comparison||27.1||-2.3||37.0||6th||16.4||+0.4||10.5||26th||75.1||18.3||v high||410%|
|Snowtown (Rayville Park)||26.4||36.7||7th||12.6||5.5||2nd||50.2|
|Yorke Peninsula (district 22A)|
|Kangaroo Island (district 22B)|
|Cape Willoughby||18.7||-2.0||29.8||7th||15.0||-0.5||13.2||23rd||64.2||21.5||v high||299%|
|Adelaide Plains (district 23A)|
|Adelaide (Kent Town)||24.6||-1.8||34.9||7th||15.2||0.0||10.8||31st||78.0||24.9||v high||313%|
|Adelaide Airport||24.3||-1.2||35.2||7th||15.0||+0.7||10.3||28th||76.4||21.7||v high||352%|
|Edinburgh RAAF||24.1||-2.8||35.8||7th||14.8||+0.4||6.3||31st||116.2||25.9||v high||449%|
|Parafield Airport||24.9||-1.9||35.9||7th||14.2||-0.4||6.9||31st||103.8||22.6||v high||459%|
|County Light (district 23B)|
|Rosedale (Turretfield Research Centre)||24.3||-3.0||35.1||7th||13.5||+0.2||5.8||3rd||86.0||20.4||v high||422%|
|Mount Lofty Ranges (district 23C)|
|Hindmarsh Island AWS||21.3||35.5||7th||13.7||8.9||5th||20.2|
|Kuitpo Forest Reserve||20.4||33.1||7th||11.8||7.7||2nd||94.2|
|Mount Barker||20.9||-3.8||32.4||7th||11.4||+1.0||5.0||2nd||80.8||31.3||v high||258%|
|Mount Crawford (Mt Crawford AWS)||20.2||31.3||7th||11.1||5.6||2nd||172.2|
|Parawa (Second Valley Forest AWS)||18.7||30.4||6th||12.2||8.1||2nd||89.6|
|Victor Harbor (Encounter Bay)||20.9||35.2||7th||13.3||6.0||6th||30.0|
|Upper Murray Valley (district 24A)|
|Loxton Research Centre||26.0||-2.2||34.1||7th||13.3||+1.4||6.1||31st||22.2||11.9||high||187%|
|Lower Murray Valley (district 24B)|
|Murray Bridge (Pallamana Aerodrome)||23.8||36.7||7th||12.1||3.2||2nd||85.4|
|Murray Bridge Comparison||24.4||-2.3||35.8||7th||12.9||0.0||6.5||2nd||90.6||20.4||v high||444%|
|Murray Mallee (district 25A)|
|Upper Southeast (district 25B)|
|Lameroo (Austin Plains)||24.6||35.4||7th||12.1||4.9||2nd||70.0|
|Lower Southeast (district 26)|
|Cape Jaffa (The Limestone)||20.6||32.2||7th||11.9||7.0||5th||35.6|
|Mount Gambier Aero||21.4||-1.7||34.2||7th||10.9||+0.4||4.8||17th||56.6||35.2||high||161%|
A Monthly Climate Summary is prepared to list the main features of the weather in South Australia 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 Friday 1 April 2011. Some checks have been made on the data, but it is possible that results will change as new information becomes available.
Averages 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 long-term average 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,
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.