Looking at the Bureau of Meteorology's average monthly maximum temperatures for Sydney, a temperature rise of 0.89 degrees will only have brought the season of Spring forwards by about two weeks over the last 113 years.
Two weeks over more than a century is indeed trivial.
As for rainfall, I'm not aware of Sydney having received increasing average annual rainfall (over this same period) to the extent that the resultant increase in average fuel load poses a significantly higher bushfire threat.
Also remember that the first decade of the 21st century saw the entire New South Wales experiencing average to very much below average rainfalls. This was at a time of increasing global warming. Where was the increased fuel load over that period? Where was the increased bushfire risk?
To attribute the NSW bushfires to global warming is nothing short of intellectual dishonesty.
