The line chart below illustrates the average monthly temperatures recorded in three different cities, Paris, Boston, and Melbourne.
Overall, it is evident that the average temperature in Paris is the highest among the three cities in January and December. Besides, from January to December, a fluctuation in the average temperatures among the three major cities was recorded.
From January to August, there are significant differences in the average temperatures each month between Boston, Paris, and Melbourne. First of all, between January and August, the average temperatures of Paris and Boston witnessed a dramatic increase. In Boston, the average temperature in January is the lowest; however, in August, the figure topped the list with more than 30 degrees. In Paris, the temperature in January is approximately 7 degrees, and there is a sharp rise during a 6-month period starting in January. During one of the next months, the temperatures remain stable at about 25 degrees. Secondly, in Melbourne, there is a slight decrease from January to July. It ranks first in January with around 25 degrees, and declines to approximately 15 degrees in July. However, a gradual increase was recorded between July and August.
During the next four months, the temperatures in Boston experienced a dramatic decline of 25 degrees. In Paris, there is a steady fall with about 8 degrees in December. The average temperatures in Melbourne continue to increase and fives times as high as that of Boston. In December, the positions of the three cities do not change compared in January.