Köppen climate classification
The Köppen climate classification divides climates into five main climate groups, with each group being divided based on seasonal precipitation and temperature patterns. The five main groups are "A" (tropical), "B" (dry), "C" (temperate), "D" (continental), and "E" (polar). Each group and subgroup is represented by a letter. All climates are assigned a main group (the first letter). All climates except for those in the "E" group are assigned a seasonal precipitation subgroup (the second letter). For example, "Af" indicates a tropical rainforest climate. The system assigns a temperature subgroup for all groups other than those in the "A" group, indicated by the third letter for climates in "B", "C", and "D", and the second letter for climates in "E". For example, "Cfb" indicates an oceanic climate with warm summers as indicated by the ending "b". Climates are classified based on specific criteria unique to each climate type.
Iztapalapa
The climate of the area is divided into four zones. One consists of a warm wet climate with temperatures above 18C in the coldest months. Another is a temperate wet climate with temperatures between -3 and 18C in the coldest months. One has a relatively dry climate with various temperatures, and the last consists of a cold climate with average temperature not exceeding 6.5C. Most of the area falls into the temperate category and all receive most of their rainfall in the summer and early fall.