The Port Pirie Recorder. The Heat 03 Jan 1900. “The thermometer at Mr. Meylan’s (who keeps the official record) reached 117 degs. in the shade, which is the highest point touched here since the records have been taken.” 117 deg F = 47 Celsius. This is 6 degrees above the BOM new heat record.

The port Pirie Recorder. (1900, January 3). Port Pirie Recorder and North Western Mail (SA : 1898 – 1918), p. 2. Retrieved June 5, 2020, from https://trove.nla.gov.au/newspaper/article/95433655?searchTerm=1900%20heat%20hot&searchLimits=#

The Port Pirie Recorder.
Wednesday, January 3. 1900.
The Heat.—It has been terrifically hot during the past few days. On Sunday the mercury ran up to 115 deg. in the shade, and when the sun set his blistering rays were succeeded by an atmosphere an heavy and stifling as to afford little relief to worn-out, perspiring humanity. Indoors or out of doors it was suffocatingly close, and anything but broken sleep, with frequent excursions for the water bottle, was out of the question. But hot as it was on Sunday, New Year’s Day was even worse. It was a perfect blazer blistering, parching, energy sapping. The thermometer at Mr. Meylan’s (who keeps the official record) reached 117 degs. in the shade, which is the highest point touched here since the records have been taken. At night, a cool change was locked for in vain, and never once during the 24hours did the mercury descend below 89 degrees. Yesterday was not quite such a frizzier. Mr. Meylan’s glass showing 110 deg. in the shade. Last night a cool change was expected, but it did not come, and the unpleasant news was wired from Adelaide that the forecast was for another hot day. A little comfort may be drawn from the prediction that a cool change will follow.