Closer look at Chac 

Today the most commonly known and quite popular version of chac is known as Thor. Thor is claimed to be a warrior god of thunder and lightening by the marvel comic books and movies. Unlike Thor Chac had the ability to bring rain storms to the Mayan people. While our comic book god Thor can control thunder and lightening somehow I think the rain power Chac had at the time was of more importance to the Mayan culture and would be to us too if Thor was real. 

In the Mayan Pantheon Chac worked in close relation to the sun god and maize god to create the crops and plants the Mayans needed to survive. The Sun god Kinich Ahua provided the plants  and crops with sunlight , that caused growth when paired with the maize god Hun Hunahpu's powers of growth. The vital rain waters from Chac also aided in the growth process of the plants and crops. Without all three gods working in unison the Mayans would have been in peril. 

The Aztecs would be in the same kind of peril without their rain god Tlaloc. The Aztec rain god just like Chac is said to live among the mountains and to aid in agricultural needs. However unlike Chac The Aztec god Tlaloc takes hand in fertility as well. Both gods were often correlated with the color blue especially when depicted. Tlaloc and Chac were highly worshipped and had temples built in their honor in the different cultures. The Aztec and Mayan Cultures were not the only ones to worship rain gods. There are multiple rain gods rooted in many different pantheons that are probably quite similar.