JoNova(Australia)
Penrith may have recorded 47.3C for at least one-second this week, but Windsor is
only 23 km north-east of Penrith, and on January 13th, 1939, it
recorded 122F or 50.5C with an old fashioned liquid thermometer, not a
modern noisy electronic one.
Apparently, climate change makes our extreme heat less extreme.
Furthermore, this was not measured on a beer crate in someones back-yard, but on the historic Windsor Observatory which was built in 1863 by John Tebbutt
F.R.A.S who had discovered The 1861 comet, and published many
scientific reports in Astronomical Journals. His meteorological
observations are published at Harvard in 1899
(among others). Tebbutt died in 1916, so it’s not clear what instrument
the 122 F was recorded on in 1939, but a Stevenson Screen had been
installed around 40 years earlier, and the measurement was made by Mr Keith Tebbutt, presumably his son."
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