Remember This? Natural Gas Advertisement - "Sydney Under Snow" (1983)

Yesterday, Penrith recorded the highest temperature on the planet - 47.1 degrees while on the coast, it hit 43 degrees, the hottest day recorded in five years.

Meanwhile, many areas of the United States has been subject to an Arctic blast particularly in the north east and mid west.

But how would Sydneysiders cope with a such a cold blast? AGL tried to answer that in 1983 as part of its marketing to attract customers.

As a bonus from that time, here is one of the famous "flame girls" advertisements. They would disappear during the 1990's.