Wednesday, 31 October 2007 - Monthly Climate Summary for Adelaide Metro - Product code IDCKGC13R0

Adelaide Metro in October 2007
Rainfall Below Average, Maximum Temperature Above Average.

Summary

Adelaide recorded below average rainfall for October. The average monthly maximum temperatures were 1.5°C to 2.5°C above average for the month, whilst the monthly mean minimum temperatures were about 0.5°C above average.

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Rainfall

Adelaide's rainfall for October 2007 was 25.2mm, recorded on 8 days. This is 21.8mm below the average of 47.0mm on 11 days. Last year, 1.0mm was recorded in October on 1 day. This is the forty-fifth driest October in the 169 years of rainfall records taken at the South Australian Regional Office. The driest October on record occurred in 1969 and 2006 when only 1.0mm was recorded.

The total rainfall for the first ten months of 2007 was 403.6mm on 89 days. Last year 252.8 mm on 74 days was recorded over the same period. The average rainfall for the first nine months is 498.2 mm.

Temperature

The mean maximum temperature recorded at the South Australian Regional Office (Kent Town) for October 2007 was 23.1°C, which is 1.4°C above the average October mean maximum temperature of 21.7°C. This ranks as equal tenth highest recorded at the South Australian Regional Office, 1914 is the highest with 26.8°C. The mean October maximum last year was 24.4°C. The hottest maximum temperature recorded in the Adelaide metropolitan area was 38.1°C on the 21st at Edinburgh, whilst the lowest was 15.5°C at Noarlunga on the 12th.

The mean minimum temperature for October 2007 at the South Australian Regional Office (Kent Town) was 11.7°C, which is 0.3°C above the normal October mean minimum of 11.4°C. This ranks as the equal seventeenth highest recorded at the South Australian Regional Office, 1914 is the highest with 14.0°C. Last October, the mean minimum was 11.8°C. The coldest minimum temperature recorded in the Adelaide metropolitan area was 4.4°C on the 8th at the Edinburgh, whilst the warmest night was 23.4°C at South Australian Regional Office (Kent Town) on the 21st.

Further information

South Australian Regional Office
South Australian Climate Services Centre
Bureau of Meteorology
Phone (08) 8366 2600
Email climate.sa@bom.gov.au

Extremes

Hottest day
Highest temperature		 38.1 °C at Edinburgh RAAF on the 21st
Warmest days on average
Highest mean daily maximum temperature		 24.0 °C at Edinburgh RAAF
24.0 °C at Parafield Airport
Coolest days on average
Lowest mean daily maximum temperature		 22.0 °C at Noarlunga
Coldest day
Lowest daily maximum temperature		 15.5 °C at Noarlunga on the 12th
Coldest night
Lowest temperature		 4.4 °C at Edinburgh RAAF on the 8th
Coolest nights on average
Lowest mean daily minimum temperature		 10.6 °C at Edinburgh RAAF
10.6 °C at Parafield Airport
Warmest nights on average
Highest mean daily minimum temperature		 11.7 °C at Adelaide (Kent Town)
Warmest night
Highest daily minimum temperature		 23.4 °C at Adelaide (Kent Town) on the 21st
Wettest overall
Highest total rainfall		 27.8 mm at Edinburgh RAAF
Highest wind gust
 94 km/h at Adelaide Airport on the 28th

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Records



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Summaries

Summary statistics for October 2007
Maximum temperatures
for October
(°C)		 Minimum temperatures
for October
(°C)		 Rainfall
for October
(millimetres)
Mean for
October
2007		 Diff
from
normal		 Highest for
October
2007		 Mean for
October
2007		 Diff
from
normal		 Lowest for
October
2007		 Total for
October
2007		 Normal
for
October		 Rank of
October
2007		 Fraction of
October
normal
Adelaide 23.2 +1.5 34.9 21st 11.7 +0.3 6.7 8th 25.0 46.3 low 54%
Adelaide Airport 23.1 +2.3 35.3 21st 11.2 +0.6 5.0 17th 22.2 39.1 normal 57%
Edinburgh RAAF 24.0 +2.1 38.1 21st 10.6 +0.6 4.4 8th 27.8 41.5 normal 67%
Noarlunga 22.0 34.0 21st 11.5 6.4 8th 24.8
Parafield Airport 24.0 +2.4 37.9 21st 10.6 +0.5 5.5 2nd 21.0 43.4 low 48%

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Notes

This statement has been prepared based on information available at 3 pm on Wednesday 31 October 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 decile ranking (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.

Further information

South Australian Regional Office
South Australian Climate Services Centre
Bureau of Meteorology
Phone (08) 8366 2600
Email climate.sa@bom.gov.au