Monsoon 2
Monsoon 2 : When is the Monsoon? Maricopa County has two rainy seasons: summer and winter. Winter usually brings longer-lasting but less-intense storms. Summer brings shorter, more intense thunderstorms. These summer thunderstorms are usually the result of the North American Monsoon (also called the Arizona Monsoon or the Mexican Monsoon). The North American Monsoon impacts the southwestern United States and northwestern Mexico every summer (usually July, August and September)