The provided line graph compares the mean monthly temperature in three various locations.
Overall, what stands out from the graph is that, with the exception of Melbourne, which remained relatively stable in temperature, both other cities experienced a slight rise. It is also noteworthy that Melbourne was the hottest city at the beginning of the year, but its temperature dropped sharply in the middle of the year before gradually rising again to its initial level at the end.
Looking at the cities that showed upward trends, Boston’s temperature stood at about 4°C in January before showing a sharp increase to around 23°C between January and May. After that, the figure peaked in August at 32°C, then fell sharply to about 5°C in December. As for Paris, the temperature started at around 8°C at the beginning of the year. It rose steadily until July, reaching 24°C, and remained stable until August, after which it dropped to around 9°C in December.
Turning to Melbourne, its temperature was much higher compared to the other two cities, starting at around 26°C in January. It experienced a gradual decrease until July, reaching 16°C, before climbing back to its initial level of 26°C in December.