Friday, 28 July 2017

Climate hysteria from the media: business as usual

Anthony Cox

Channel Nine frothed at recent warm winter temperatures in Moree. The headline screamed:

Temperatures smash 30-year July record in New South Wales

Shock and horror!

My friend Phill who really knows about temperature history made a brief succinct response:

The article is titled "Temperatures smash 30-year July record in New South Wales" and the text states, "Temperatures in the New South Wales town of Moree have broken a 32-year record for the warmest July day, with unseasonably warm weather predicted for other parts of the state this weekend."  
Wednesday's record breaking temperature was 25.7oC.  32 years ago in 1985 the maximum July temperature was 26.1oC on the 29th, so, for the record, no record has been broken (or smashed for that matter).  Going back further, on the 18th July 1974 the temperature hit 26.5 oC so the record is actually 43 years old and still no record has been broken.   In case you might quibble that this is just some poorly kept hick station, the August 1975 edition of the "CLIMATE AVERAGES AUSTRALIA" published by the Bureau of Meteorology lists the Moree site as Moree (A.) Met. Office.  
This would seem to indicate that the site was professionally manned by BoM staff and was at or near the airport (A.).  Notice too that for the period of overlap with the current station both sites recorded nearly identical extremes.  Currently the Climate Data Online (CDO) lists this office as Moree Comparison.  This site was opened in 1964 so high quality records exist at Moree for over 50 years now.  
Why stop there: the Moree Post Office has temperature records dating back to at least the early 1880s although the BoM's CDO only has maximum monthly temperatures listed from 1910 onward.  Unfortunately the first 30 years of temperature data which includes the known warm period leading up to and out of the great Federation drought are not available in digital tables, never-the-less the remaining data from Moree PO has at least 6 July occasions when last Wednesday's "non record" was exceeded including a whopping 27.8oC on the 28th July 1958.

This graph says it all: