About Chalco, Mexico's Climate & Weather History

Chalco is a city of approximately 169,000 people in Mexico, Mexico. Located in the Central Time Zone at 19.3°N latitude.

In 2025, Chalco recorded an average annual temperature of 61°F. The hottest temperatures reached 87°F in May; the coolest were 40°F in December. Total precipitation for the year was 22 inches, with the wettest month being June.