I saw this referred to on media – Sydney has its coldest winter in decades – Checking the facts for Sydney Observatory Hill which averaged 7.2°C 1st to 15th July 2015 – I find the next coldest 1st to 15th July was 6.2 in 1971 a 44 year record which is amazing in the face of the ever increasing largest urban heat island (UHI) in Australia.
You may be interested in seeing this Warwick: pindanpost.com/2015/07/16/green-left-subversion-of-science/
It explains a lot, is written by a CSIRO Antarctic research scientist Dr John Reid.
Snow closes the Hume Highway at Berrima
citynews.com.au/2015/snow-closes-the-hume-highway-at-berrima/