Perth Metro BoM station 09225 looks to be reading too warm from mid-2011 – could much publicised summer hot days be exaggerated ?March 2nd, 2013 by Warwick Hughes
Perth summers (Dec-Jan-Feb) as measured at Perth Metro in Mount Lawley looked too warm for 2012 and 2013 when compared with Perth Airport 09021. The differences for summer mean max between the Airport and the old Regional office (1898-1992) going back to 1945 and Perth Metro 1994-2013 show that 2012 and 2013 fall clearly outside a long established band.
I noticed there were instrument changes at Perth Metro in July 2011 – not sure if they were the instruments that read the daily max. I checked Perth Airport summers against Pearce RAAF 1994-2013 and all differences fell in a band – which also suggests that Perth Metro is faulty.
Anybody reading our media just now will find plenty of articles from the BoM spruiking the “hottest summer ever” for Australia.
Here the BoM were claiming the hottest summer ever in Perth before summer had ended.
Looking forward to hearing what others think of the Perth data.