Graphing The Data: Precipitation in Mexico City, Quito, and La Paz

As we have seen in this chapter, cities around the world often differ in their pattern of monthly precipitation. Using the data provided in the table, create a bar graph for each of the three cities.

(a) Based on these graphs, how many peaks in precipitation does each city receive? (b) Based on their geographic locations, why does the number of peaks in precipitation in these cities differ?

AVERAGE MONTHLY PRECIPITATION (mm) IN THREE CITIES

MONTH MEXICO CITY, MEXICO QUITO, ECUADOR LA PAZ, BOLIVIA
JANUARY    10.2  114.3  129.5
FEBRUARY    10.2  129.5  104.1
MARCH    12.7  152.4    71.1
APRIL    27.9  175.3    35.6
MAY    58.4  124.5    12.7
JUNE  157.5    48.3     5.1
JULY  182.9    20.3     7.6
AUGUST  172.7    25.4    15.2
SEPTEMBER  144.8    78.7    30.5
OCTOBER    61.0  127.0    40.6
NOVEMBER     5.1  109.2    50.8
DECEMBER     0.8  104.1    94.0