The monsoon season in the Southwest United States, or Arizona Monsoon, has begun. The region has seen more rainfall lately, and that's because the Monsoon, or rainy season is beginning. It happens every summer and lasts through Mid-September. Find
Every summer, places in the United States Desert Southwest receive an extra bit of rain.
Similar to certain parts of the U.S. that experience the seasons — spring, summer, fall and winter. This region experiences a wet or rainy season called the monsoon.