This line graph shows a comparison in the change of average temperatures from January to December, as measured in degrees Celsius, from -10 to +30 with an interval of 10 degrees, for Tokyo, London, New York (NY), and Berlin.
Immediately, it is clear that all four of these cities have a parabolic pattern in regards to changes in temperatures with an increase in temperature for the first half of the year and then a decrease in the second half.
Firstly, in January, these four cities’ temperatures range from zero to 8 degrees, with NY and Berlin close to the freezing point. On average, Tokyo has the highest temperatures throughout the year among these cities starting at 8 degrees in January and climbing to 28 degrees in August then dropping to 10 degrees by the end of the year. Secondly, NY has the greatest change in average temperatures in the year, beginning with 0 degrees in January and getting as hot as Tokyo in July, at 25 degrees, before dropping back down to just 4 degrees in December. Finally, both Berlin and London show relatively similar temperatures throughout the year with only a few degrees of variance in any given month. From April to Sept. Berlin is slightly warmer than London, conversely, it is slightly cooler in the other months.
In summary, looking at these average temperatures it is clear that all four of these cities experience four seasons, spring, summer, winter, and fall, and are located in the northern hemisphere.