The graph illustrates information about the average amount of the temperature in a monthly basis in three different English countries.
Overall, what stands out from the graph is that there was an almost homogenous trend in both New York and London, while that of Sydney bucked the foregoing trend during the year. Interestingly, none of the figures showed a considerable change between their starting and ending points.
Looking at the details, the temperature in London and New York rose slowly during the first month and for the next 5-6months they dramatically soared to twenty and over twenty five (which was the highest temperature in a whole year), respectively. After that, both two lines accounted for around 5 degree, decreasing gradually over the ensuing months until the year ends.
By contrast, this trend in Sydney went in the opposite direction. It started at more or less twenty four degree, and had slightly went down to roughly thirteen degree after remaining stable in the beginning. In the meanwhile, this trend recovered its previous status throughout the span, differing for only one or two degree with its high temperature over the first months, which constituted the most upper figure at the end of the year.