AZTECH Re Archived wind speed records for any station in the world.....including SA.
I had this site in my bookmarks
Here is a link to OGIMET
http://www.ogimet.com/gsodc.phtml.enI was able to make a query to their database
It is a global database
Using Adelaide airport station number 94672
( they help you find the station number: click on the station index link)
http://www.ogimet.com/gsodc.phtml.en#indicI was able to find records for wind and many other obs for any date between 1993 and 2012
Put in a query for 30th of june 1993 and it was able to tell me the max wind gust at Adelaide airport was 57km/hr
amongst other obs like MSLP ,max temp etc
As an aside
I like their global temp extreme records query service
http://www.ogimet.com/ranking.phtml.enExample
JULY 1st 2012 top hottest and coldest
Maximum temperature in 24h. 07/01/2012 at 06:00 UTC
(10 of 7174 stations) 1 Mitribah (Kuwait) 47.1 °C
2 Abadan (Iran) 47.0 °C
3 Bubiyan (Kuwait) 46.6 °C
4 Abdaly (Kuwait) 46.3 °C
5 Kuwait Internationalairport (Kuwait) 46.2 °C
6 Safi-Abad Dezful (Iran) 46.2 °C
7 Sulaibiya (Kuwait) 46.2 °C
8 Basrah (Iraq) 46.0 °C
9 Jahra (Kuwait) 46.0 °C
10 Omidieh (Iran) 46.0 °C
back to index
Minimum temperature in 24h. 07/01/2012 at 06:00 UTC
(10 of 7113 stations) 1 University Wi Id 8904 (Antarctica) -69.0 °C
2 Concordia (Antarctica) -68.6 °C
3 Davis Lgb 46 Aws (Antarctica) -68.0 °C
4 Vostok (Antarctica) -64.6 °C
5 University Wi Id 8924 Nico (Antarctica) -60.6 °C
6 University Wi Id 8982 Dome Fuji (Antarctica) -60.0 °C
7 Henry (United States) -57.3 °C
8 Amundsen-Scott South Pole Station (Antarctica) -54.6 °C
9 Kohnen Ep9 (Antarctica) -54.0 °C
10 Baldrick Aws (Antarctica) -53.5 °C
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Just did a google which brought up the BOM wind archives
Haven't checked it out but looks like exactly what you want
http://www.bom.gov.au/climate/how/newproducts/IDCdw.shtmlAt a glance
Daily mean wind speed, daily maximum wind gust and daily wind run data for stations across Australia, some islands and the Antarctic.
Looks like a good one to book mark