Tuesday, 4 December 2007 - Seasonal Climate Summary for Western Australia - Product code IDCKGC21R0

Western Australia in spring 2007

Warm and dry spring in WA

Spring 2007 in WA was very warm with very much above average maximum temperatures recorded. Averaged across the state, WA saw its third warmest spring since comparable records commenced in 1950 with an anomaly of 1.46°C. Almost all of the state registered above average maximum temperatures with up to 3°C anomalies in large areas of central and southeast WA.

The statewide mean minimum temperature was above average, 0.67°C above the long term mean (1961-1990). With the exception of the Kimberley, most of the state experienced above average minimum temperatures, with areas in the Pilbara, Goldfields and Eucla up to 2°C above the mean.

For WA as a whole, rainfall in spring 2007 was near average, but was the driest spring for 13 years. The northern half of the state saw mixed conditions with both above and below average rainfall reported, whilst below to very much below average rainfal was reported in large parts of the southern half.

Some extremes and records for individual locations in WA are tabulated below.


Details

Further information

Yanhui Blockley or Glenn Cook
Western Australia Climate Services Centre
Bureau of Meteorology
Phone (08) 9263 2222
Email climate.wa@bom.gov.au

Extremes

Hottest day
Highest temperature
46.2 °C at Port Hedland Airport on 20 Nov
46.2 °C at Roebourne on 20 Nov
46.2 °C at Roebourne Aero on 20 Nov
Warmest days on average
Highest mean daily maximum temperature

40.4°C at Fitzroy Crossing Aero

Coolest days on average
Lowest mean daily maximum temperature
18.6 °C at Albany
Coldest day
Lowest daily maximum temperature
10.6 °C at Manjimup on 27 Oct
Coldest night
Lowest temperature
-2.0 °C at Southern Cross Airfield on 1 Sep
Coolest nights on average
Lowest mean daily minimum temperature
6.4 °C at Wandering
Warmest nights on average
Highest mean daily minimum temperature
26.2 °C at Troughton Island
Warmest night
Highest daily minimum temperature
32.0 °C at Wittenoom on 27 Nov
Wettest overall
Highest total rainfall
372.8 mm at Karri Valley Resort
Wettest day
Highest daily rainfall
93.8 mm at Mornington Airstrip on 8 Nov
Highest wind gust
135 km/h at Wyndham Aero on 14 Nov

Records




Record highest spring mean daily maximum temperature
Mean daily maximum
temperature
for spring 2007 (°C)
Previous highest
for spring
Years of
record
Normal for
spring
Wittenoom36.836.6in 20065534.7
Merredin26.626.3in 20064224.5
Kalbarri27.927.8in 19823225.9



Record highest spring temperature
Highest temperature
in spring 2007 (°C)
Previous highest
for spring
Years of
record
Normal for
spring
Onslow45.5on 27 Nov45.1on 30 Nov 19974731.5
Jurien Bay40.5on 11 Nov40.3on 14 Nov 20023923.3
Hyden43.2on 13 Nov43.0on 23 Nov 20063624.3



Record lowest spring daily maximum temperature
Lowest daily maximum
temperature
in spring 2007 (°C)
Previous lowest
for spring
Years of
record
Normal for
spring
Esperance10.8on 27 Oct11.7on 22 Sep 19983921.1



Record highest spring daily minimum temperature
Highest daily minimum
temperature
in spring 2007 (°C)
Previous highest
for spring
Years of
record
Normal for
spring
Emu Creek Station29.0on 23 Nov28.2on 18 Nov 19723616.6



Record lowest spring temperature
Lowest temperature
in spring 2007 (°C)
Previous lowest
for spring
Years of
record
Normal for
spring
Kimberley Res.Station7.5on 7 Sep9.4on 6 Sep 20035522.4



Notes

This statement has been prepared based on information available at 10 am on Tuesday 4 December 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 30 years of record, as they cannot then be calculated reliably.
The median is sometimes more representative than the mean of "normal" rain.

Further information

Yanhui Blockley or Glenn Cook
Western Australia Climate Services Centre
Bureau of Meteorology
Phone (08) 9263 2222
Email climate.wa@bom.gov.au