Thursday, 1 March 2007 - Monthly Climate Summary for Adelaide Metro - Product code IDCKGC13R0

Adelaide Metro in February 2007
Highest Average Maximum Temperature for 100 years!

Summary

Temperatures were well above normal; the warmest mean February maximum for 100 years. Rainfall in Adelaide during February was zero; this is not unusual as this is often the driest month.

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Rainfall

No rainfall was recorded in Adelaide, (Kent Town) during February 2007. The average is 13.7 mm on 4 days. Last year, 15.6 mm was recorded in February on 4 days. There have been three dry Februarys recorded in Adelaide (Kent Town), the last in 2002.
Adelaide’s rainfall for summer 2006/07 was 57.0 mm, 4.5 mm below the average summer rainfall of 61.5 mm. Rainfall for last summer was 94.4 mm. This was the driest summer since 2003/04 when 49.2 mm was recorded in Adelaide.

Some sites had their lowest total February rainfall on record.

Maximum temperature

The mean maximum temperature for February 2007 was 32.9°C, 3.7°C above the normal February mean maximum of 29.2°C. This has been the warmest February mean maximum since 1906 when it averaged 33.0°C. In contrast the February mean maximum last year was 27.2°C.
In addition, there were 17 days with a maximum temperature above 30°C this February, 5 days above the average number of 12. There were 10 days where the maximum temperature reached 35°C or more, double the average. The highest maximum temperature was 41.5°C on the 17th.

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

Minimum temperature

The mean minimum temperature for February 2007 was 19.0°C, which is 1.9°C above the normal February mean minimum of 17.1°C. This has been the warmest February mean minimum since 2004 when the mean minimum was 17.8°C. Last February, the mean minimum was 15.5°C. The highest overnight minimum temperature for this February was 30.5°C recorded on the 18th.

Some sites had their warmest February night (highest daily minimum temperature) on record.

Summer temperatures

The mean maximum temperature for summer 2006/07 was 30.3°C, which is 1.9°C above the average of 28.4°C. Last summer the mean maximum temperature was 28.9°C. This has been the warmest mean maximum temperature for summer since 2003/4 when the mean maximum was 29.0°C.
The mean minimum temperature for summer 2006/07 was 17.6°C, which is 1.0°C above the average of 16.6°C. Last summer the mean minimum temperature was 17.1°C. This has been the warmest mean minimum temperature for summer since 2000/1 when the mean minimum was 18.8°C.

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		 42.7°C at Parafield Airport on the 4th
Warmest days on average
Highest mean daily maximum temperature		 33.6°C at Parafield Airport
Coolest days on average
Lowest mean daily maximum temperature		 30.1°C at Noarlunga
Coldest day
Lowest daily maximum temperature		 22.7°C at Noarlunga on the 6th
22.7°C at Noarlunga on the 7th
Coldest night
Lowest temperature		 11.4°C at Parafield Airport on the 8th
Coolest nights on average
Lowest mean daily minimum temperature		 17.5°C at Parafield Airport
Warmest nights on average
Highest mean daily minimum temperature		 19.0°C at Adelaide (Kent Town)
Warmest night
Highest daily minimum temperature		 30.9°C at Noarlunga on the 18th
Wettest overall
Highest total rainfall		 0.8 mm at Adelaide Airport
Highest wind gust
 69 km/h at Noarlunga on the 5th

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Records

Record lowest total February rainfall
Total rainfall
for February 2007 (mm) 		Previous lowest
for February 		Normal for
February		 Years of
record
Parafield Airport 0.0 = 0.0 in 1991 18.0 59
Edinburgh RAAF 0.0 = 0.0 in 2002 16.5 35
Adelaide (Kent Town) 0.0 = 0.0 in 2002 13.2 31


Record highest February mean daily maximum temperature
Mean daily maximum
temperature
for February 2007 (°C) 		Previous highest
for February 		Normal for
February		 Years of
record
Adelaide (Kent Town) 32.9 32.7 in 1997 29.2 31


Record highest February daily minimum temperature
Highest daily minimum
temperature
in February 2007 (°C) 		Previous highest
for February 		Normal for
February		 Years of
record
Adelaide Airport 30.3 on the 18th 29.8 on the 8th in 1970 16.0 53


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Summaries

Summary statistics for February 2007
Maximum temperatures
for February
(°C)		 Minimum temperatures
for February
(°C)		 Rainfall
for February
(millimetres)
Mean for
February
2007		 Diff
from
normal		 Highest for
February
2007		 Mean for
February
2007		 Diff
from
normal		 Lowest for
February
2007		 Total for
February
2007		 Normal
for
February		 Rank of
February
2007		 Fraction of
February
normal
Adelaide 32.9 +3.7 41.5 17th 19.0 +1.9 12.9 7th 0.0 13.2 lowest 0%
Adelaide Airport 30.5 +2.5 39.9 17th 17.7 +1.7 12.3 9th 0.8 18.8 low 4%
Edinburgh RAAF 33.1 +3.2 42.0 17th 18.1 +1.6 12.4 9th 0.0 16.5 lowest 0%
Noarlunga 30.1 40.1 17th 18.4 12.7 8th 0.0
Parafield Airport 33.6 +4.5 42.7 4th 17.5 +1.2 11.4 8th 0.0 18.0 lowest 0%

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Notes

This statement has been prepared based on information available at 9 am on Thursday 1 March 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 10 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