Friday, 1 June 2007 - Seasonal Climate Summary for Western Australia - Product code IDCKGC21R0

Western Australia in autumn 2007
A season of rainfall contrasts

Summary

For Western Australia as a whole, autumn 2007 was the wettest autumn since 2000. An active cyclone season in early autumn contributed above and very much above average rainfall in Kimberley, east Pilbara, Interior and Eucl, with Port Hedland recording its highest autumn rainfall total. In contrast, the South West Land Division and neighbouring parts of the Gascoyne and Goldfields commonly saw below to very much below average rainfall for autumn 2007, and some locations in the Central West and northern Central Wheatbelt recorded lowest on record autumn totals..

The statewide mean maximum and minimum autumn temperature were near average.

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


Extremes

Hottest day
Highest temperature
47.8°C at Carnarvon Airport on 6 Mar
Warmest days on average
Highest mean daily maximum temperature
35.7°C at Fitzroy Crossing Aero
Coolest days on average
Lowest mean daily maximum temperature
20.7°C at Albany
Coldest day
Lowest daily maximum temperature
12.4°C at Rocky Gully on 27 May
Coldest night
Lowest temperature
−3.4°C at Southern Cross Airfield on 22 May
Coolest nights on average
Lowest mean daily minimum temperature
8.2°C at Collie East
Warmest nights on average
Highest mean daily minimum temperature
27.0°C at Troughton Island
Warmest night
Highest daily minimum temperature
31.7°C at Paraburdoo Aero on 7 Mar
Wettest overall
Highest total rainfall
710.4 mm at Cygnet Bay
Wettest day
Highest daily rainfall
285.0 mm at Pardoo Station on 27 Mar

Records

Record highest total autumn rainfall
Total rainfall
for autumn 2007 (mm)
Previous highest
for autumn
Years of
record
Normal for
autumn
Port Hedland Airport431.0370.9in 196665100.6
Mount Amhurst324.4284.7in 19684998.7



Record lowest total autumn rainfall
Total rainfall
for autumn 2007 (mm)
Previous lowest
for autumn
Years of
record
Normal for
autumn
Ajana5.57.2in 19857788.1
Goodlands19.623.0in 20025693.0
Wandana4.631.5in 19734794.9


Record highest autumn temperature
Highest temperature
in autumn 2007 (°C)
Previous highest
for autumn
Years of
record
Normal for
autumn
Cape Leeuwin39.9on 7 Mar38.2on 3 Mar 195610121.0
Geraldton Airport45.2on 6 Mar44.3on 1 Mar 19616527.5
Carnarvon Airport47.8on 6 Mar45.3on 2 Mar 19776128.9
Cape Naturaliste37.4on 6 Mar36.7on 3 Mar 20015121.7
Manjimup41.2on 7 Mar41.0on 23 Mar 20054821.1
Lancelin43.6on 7 Mar42.7on 22 Mar 20044125.4
Jurien Bay44.0on 6 &7 Mar42.1on 25 Mar 19853826.2
Mullewa44.0on 5 Mar43.5on 4 Mar 19733828.6
Gascoyne Junction46.5on 6 Mar46.1on 4 Mar 19703732.6
Eneabba44.9on 5 Mar44.0on 22 Mar 20043428.9
Kalbarri47.2on 6 Mar43.1on 1 Mar 19803329.2



Record highest autumn daily minimum temperature
Highest daily minimum
temperature
in autumn 2007 (°C)
Previous highest
for autumn
Years of
record
Normal for
autumn
Pearce RAAF28.0on 8 Mar27.2on 13 Mar 19445313.5
Lancelin28.3on 6 Mar26.4on 6 Mar 19984114.6
Mount Barker24.8on 8 Mar23.9on 7 Mar 20013810.6
Mullewa28.5on 6 Mar28.0on 9 Mar 19963814.8



Record lowest autumn temperature
Lowest temperature
in autumn 2007 (°C)
Previous lowest
for autumn
Years of
record
Normal for
autumn
Balladonia−0.1on 22 May0.0on 26 May 19934310.8
Narembeen−1.8on 22 May−0.9on 26 May 19684011.7
Beverley−0.6on 22 May−0.2on 27 May 20043811.3
Hyden−2.8on 22 May−1.3on 23 May 19753511.0



Notes

This statement has been prepared based on information available at 1 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 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