South Australian Monthly Climate Summary: October 2006
Very Dry October in South Australia

Wednesday 1 November, 2006

In Brief

October rainfall was significantly below average over most districts of the State, while daytime temperatures were mostly above normal.

Details

Rainfall
Pastoral Districts
Rainfall totals were average to below average over most of the northern pastoral districts. Isolated pockets of above average rainfall were confined to northern parts of the North West Pastoral District. The eastern border region of the Far North and North East Districts recorded below average rainfall and southern parts of the Pastoral Districts reported lowest rainfall totals on record.

Totals in the range 1 to 10 mm were reported from most of the Pastoral Districts.

The highest rainfall total for October in the Pastoral Districts was 23 mm recorded at Pukatja in the North West Pastoral District.

Agricultural Districts
Rainfall totals over the Agricultural Districts graded from below average over northern agricultural districts to lowest rainfall totals on record over most of the southern agricultural districts.

Rainfall totals in excess of 10 mm were reported from only two centres in the Lower Southeast District.

Rainfall totals between 5 and 10 mm were confined to the Lower Southeast District and higher parts of the Mount Lofty Ranges District. The remaining districts reported totals less than 5 mm with the majority of recordings below 1 mm.

Temperatures
Maximum
Mean maximum temperatures over the Pastoral Districts of the state were above normal, with reports of October mean maxima 2 to 3.5°C above the average. Mean maximum temperatures ranged from 27.1°C at Gluepot in the Northeast district to 33°C at Moomba Airport, in the Far North District. The highest recorded maximum temperature for October was 40.9°C at Tarcoola on the 12th.

Mean maximum temperatures over the Agricultural Districts of the state were also above normal, with reports of October mean maxima 2 to 3.5°C above the average. Mean maximum temperatures ranged from 18.6°C at Robe, in the South East District to 28.1°C at Kyancutta and Port Augusta Airport, in the Western Agricultural District. The highest recorded maximum temperature for October was 40.7°C at Whyalla Airport on the 12th. Several centres recorded highest October daily maximum temperatures on record.

New Record High Maximum Temperatures for October 2006.

Location

New Record

Date

Old Record

Date

Years of records

CLEVE APT

39.5°C

12/10/2006

39.2°C

12/10/2004

11 years

EDINBURGH APT

39.9°C

12/10/2006

39.0°C

12/10/2004

34 years

PARAFIELD APT

39.2°C

12/10/2006

39.0°C

31/10/1987

50 years

NURIOOTPA PIRSA

36.8°C

12/10/2006

36.6°C

12/10/2004

53 years

TURRETFIELD

38.6°C

12/10/2006

37.6°C

31/10/1987

45 years

MT CRAWFORD

34.5°C

12/10/2006

33.4°C

12/10/2004

13 years

MENINGIE

34.6°C

12/10/2006

34.4°C

12/10/2004

41 years

KEITH

39.2°C

12/10/2006

38.7°C

12/10/2004

45 years

COONAWARRA

35.8°C

12/10/2006

34.6°C

12/10/2004

22 years

NARACOORTE APT

37.0°C

12/10/2006

35.6°C

31/10/1987

48 years



Minimum
Mean minimum temperatures were either close to average or up to 1°C above normal across the pastoral areas of the state. Mean minimum temperatures ranged from 7.1°C at Gluepot, in the North East district to 17.7°C at Moomba Airport in the Far North District. The lowest recorded minimum temperature for October was minus 0.3°C at Yunta.

Mean minimum temperatures were either close to average of up to 1.5°C below normal across the agricultural areas of the state. Mean minimum temperatures ranged from 4.3°C at Coonawarra in the South East district to 12.6°C in the township of Port Pirie in the Mid North. The lowest recorded minimum temperature for October was minus 3.3°C recorded at Keith AWS, in the Upper South East.

New Record Low Minimum Temperatures for October 2006.

Location

New Record

Date

Old Record

Date

Years of records

KINGSCOTE APT

−0.6°C

6/10/2006

−0.1°C

14/10/2005

13 years

ROSEWORTHY AG

−1.1°C

10/10/2006

−0.7°C

10/10/2002

10 years

NARACOORTE APT

−3.0°C

29/10/2006

−2.8°C

3/10/1967

48 years



Frost Occurrences for October 2006. (Minimum Temperature <2.2°C)

NAME

October 2006

Averages

WUDINNA APT

4

2

GLUEPOT

5

1

RAYVILLE PARK

5

4

ROSEWORTHY

10

2

TURRETFIELD

4

2

NURIOOTPA PIRSA

5

1

MOUNT BARKER

5

2

ENCOUNTER BAY

4

1

KEITH

5

2

MOUNT GAMBIER APT

6

3

COONAWARRA

8

3

NARACOORTE APT

8

5

PADTHAWAY SOUTH

9

3



Significant Weather October 2006
Severe Winds
On Wednesday the 4th the passage of a front resulted in a brief period of gale force NW winds at Edithburgh around noon. Due to the dry conditions, Extreme Fire weather conditions were recorded in the North West Pastoral, Mount Lofty Ranges and Lower South East districts.

Another stronger front on Thursday the 12th resulted in gale force NW winds of 74 km/h and up to 85 km/h with peak gust 106 km/h at Cape Willoughby during the early morning and 63 km/h to 70 km/h with peak gust 95 km/h at Hindmarsh Island during the late morning to early afternoon.

Significant Fire Weather Days
Hot and very dry conditions, ahead of the front of Thursday the 12th, combined with the strong to gale force winds resulted in Extreme Fire Weather in 9 districts.

Adelaide's weather
Rainfall
Adelaide’s rainfall for October 2006 was 1.0 mm, recorded on 2 days. This is 47.5 mm below the normal of 48.5 mm on 11 days. This is the driest October on record and also equals the 1 mm recorded in 1969. Last year 88.4 mm was recorded in October on 17 days.

During the first two months of spring Adelaide recorded 33.6 mm. This is 111.5 mm below the spring average. This has been the driest spring period since 1914 when only 19.3 mm was reported.

So far during this winter/spring period Adelaide has recorded only 93.4 mm. This is the driest winter/spring period since 1914 when only 80.8 mm was recorded.

The total rainfall for the first ten months of 2006 was 252.8 mm. This has been the driest first ten months period since 1967 when only 245.4 mm was recorded. Last year 493.4 mm was recorded over the same period. The average rainfall for the first ten months is 507.0 mm.

Temperatures
The mean maximum temperature for October 2006 is 24.4°C, which is 2.7°C above the normal October mean maximum of 21.7°C. The mean October maximum last year was 22.0°C

The mean minimum temperature for October 2006 was 11.8°C, which is 0.4°C above the normal October mean minimum of 11.4°C. Last October, the mean minimum was 12.1°C.

South Australian Weather Summary issued 1 November 2006: For further information please contact Bruce Brooks on (08) 8366 2698.