Comparison of the First Fleet Sydney Temperature Records with Modern Data, 1788 to 2018

By Dr G M Derrick

Executive Summary

1. Notwithstanding a data gap from 1791 to 1859, there appears to have been little or no change in the trends of monthly maximum and minimum temperatures for a period of 230 years, from 1788 to 2018, based on comparisons of two data sets—one recorded by First Fleet officer William Dawes, and one from the Bureau of Meteorology (BOM).

2. Gergis et al 2009, authors of a major study and compilation of the data, conclude that “Remarkably, the records appear comparable with modern day measurements taken from Sydney Observatory Hill, displaying similar daily variability, a distinct seasonal cycle and considerable inter-annual variability.”

This runs counter to the climate alarmism normally published by these authors.

Full article: https://saltbushclub.com/wp-content/uploads/2019/01/comparison-of-first-fleet-and-modern-temperatures.pdf [PDF: 2.6 MB]