The image demonstrates monthly variations in temperature in three cities across the world, namely Paris, Boston, and Melbourne.
Overall, while July and August are the hottest months in Paris and Boston, temperatures hit their lowest levels in Melbourne in these months. Additionally, winter months are relatively cold in Paris and Boston compared to Melbourne, where they are warm.
According to the graph, the city with the most extreme weather is Boston. In winter, temperatures are around 5 degrees Celsius. These temperatures start rising in Spring, going from under 10 degrees Celsius in March to roughly 22 degrees Celsius. The hottest period comes in the summertime, when temperatures peak at about 33 degrees Celsius in August, followed by a steep decline to 5 degrees Celsius in December again.
Paris exhibits a similar pattern of temperature fluctuations over the year. However, unlike Boston, winter months are warmer in Paris, where temperatures vary from 7 to 10 degrees Celsius. Over Spring, the weather gets warmer, gradually going up to 17 degrees Celsius. Similar to Boston, temperatures reach a peak at around 25 degrees Celsius in July and August, followed by a steady drop over Fall and Winter to about 10 degrees Celsius.
Melbourne, on the other hand, shows more bearable seasonal changes. In Winter, Spring, and Fall, temperatures range between about 20 and 25 degrees Celsius, with a low of 15 degrees Celsius in July.