Result - warming up by 23% since 1910.

And forget about Oodnadatta being the hottest.

Still in the ACORN2 data is Albany WA, which apparently had a day of 51.2C in 1933.

"Extreme daily temperatures can be defined as equal to or hotter than 37.8C, which before 1972 metrication was known as a century temperature at or above 100F. The table below compares 1910-1963 with 1964-2017 at the 57 weather stations, showing that the total and average number of days at 37.8C or more increased 7.6% in ACORN 1, increased 15.9% in ACORN 2 and decreased 3.3% in RAW."

http://www.waclimate.net/acorn2/