The so-called climate is the average weather situation in a place for many years, so the elements of climate are also temperature and precipitation. Read the temperature of each month in four cities t

The so-called climate is the average weather situation in a place for many years, so the elements of climate are also temperature and precipitation. Read the temperature of each month in four cities throughout the year. The difference between the highest monthly average temperature and the lowest monthly average temperature in a year is called the temperature annual range, which reflects the degree of annual temperature change. Generally speaking, the straighter the temperature curve, the smaller the temperature change, on the contrary, the greater the temperature change. As can be seen from the figure, the temperature is in the second place during the year.

Therefore, choose: B.