Weather is probably a major factor when you plan your trip to Rio Verde, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually September and October with an average temp of 77°F, while the coldest months are July and June with an average of 71°F. The rainiest months in Rio Verde are December, January, February, and November, with each month seeing an average of 10 inches of rainfall.