Western Regional Climate Center
Miami, Arizona. Period of Record Monthly Climate Summary - 1914 to 2013
Miami, Arizona. Period of Record Monthly Climate Summary 2/1/1914 to 12/31/2014.
The higher elevations of the state, running diagonally from the southeast to the northwest, average between 25 and 30 inches of precipitation (rain plus melted snow) annually, while the desert southwest averages as low as three or four inches per year.