Friday, 1 June 2007 - Seasonal Climate Summary for Adelaide Metro - Product code IDCKGC23R0

Adelaide Metro in Autumn 2007
A Wet and Warm Autumn

Summary

Rainfall in Adelaide during autumn was above average; temperatures were more than a degree above average.

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Rainfall

Autumn rainfall for 2007 totalled 151.8 mm, while the normal rainfall for autumn is 123.8 mm. Last year 121.4 mm was recorded for autumn.

Temperature

The mean maximum temperature for autumn 2007 was 24.0°C, which is 1.8°C above the average autumn mean maximum of 22.6°C. The mean maximum for autumn last year was 22.2°C. This has been the warmest autumn since 2005 when 24.4°C was achieved.

The mean minimum temperature for autumn 2007 was 14.2°C, which is 1.6°C above the average autumn mean minimum of 12.6°C. Last autumn the mean minimum was 12.5°C. This has been the warmest autumn mean minimum on record for Kent Town but only the warmest since 1974 for the Adelaide (West Terrace) site where 14.5°C was recorded. The warmest autumn mean minimum on record was in 1971 when 15.1°C was attained.

Some sites had their highest autumn mean daily maximum temperature on record.

Some sites had their highest autumn mean daily minimum temperature on record.

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		 40.0°C at Edinburgh RAAF on 2 Mar
40.0°C at Parafield Airport on 2 Mar
Warmest days on average
Highest mean daily maximum temperature		 24.6°C at Parafield Airport
Coolest days on average
Lowest mean daily maximum temperature		 22.8°C at Noarlunga
Coldest day
Lowest daily maximum temperature		 14.6°C at Noarlunga on 29 May
Coldest night
Lowest temperature		 5.6°C at Parafield Airport on 22 Apr
Coolest nights on average
Lowest mean daily minimum temperature		 13.2°C at Parafield Airport
Warmest nights on average
Highest mean daily minimum temperature		 14.6°C at Noarlunga
Warmest night
Highest daily minimum temperature		 25.2°C at Adelaide (Kent Town) on 23 Mar
25.2°C at Noarlunga on 23 Mar
Wettest overall
Highest total rainfall		 194.0 mm at Edinburgh RAAF
Highest wind gust
 87 km/h at Noarlunga on 29 May

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Records

Record highest autumn mean daily maximum temperature
Mean daily maximum
temperature
for autumn 2007 (°C) 		Previous highest
for autumn		 Years of
record		 Normal for
autumn
Adelaide Airport 23.6 23.4 in 2005 53 22.0


Record highest autumn mean daily minimum temperature
Mean daily minimum
temperature
for autumn 2007 (°C) 		Previous highest
for autumn		 Years of
record		 Normal for
autumn
Adelaide Airport 13.8 13.6 in 1971 53 11.8
Adelaide (Kent Town) 14.2 14.1 in 1989 31 12.5


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Summaries

Summary statistics for autumn 2007
Maximum temperatures
for autumn
(°C)		 Minimum temperatures
for autumn
(°C)		 Rainfall
for autumn
(millimetres)
Mean for
autumn
2007		 Diff
from
normal		 Highest for
autumn
2007		 Mean for
autumn
2007		 Diff
from
normal		 Lowest for
autumn
2007		 Total for
autumn
2007		 Normal
for
autumn		 Rank of
autumn
2007		 Fraction of
autumn
normal
Adelaide 24.1 +1.5 39.7 2 Mar 14.2 +1.7 6.6 26 May 151.0 124.7 normal 121%
Adelaide Airport 23.6 +1.6 39.2 2 Mar 13.8 +2.1 6.6 11 May 128.2 110.3 normal 116%
Edinburgh RAAF 24.0 +1.2 40.0 2 Mar 13.3 +1.6 5.9 26 May 194.0 97.5 very high 199%
Noarlunga 22.8 38.4 2 Mar 14.6 8.8 30 May 138.6
Parafield Airport 24.6 +2.0 40.0 2 Mar 13.2 +1.3 5.6 22 Apr 159.4 108.3 high 147%

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Notes

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 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