Weather is probably a major factor when you plan your trip to Americana, 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 74°F, while the coldest months are June and July with an average of 66°F. The rainiest months in Americana are January, December, November, and February, with each month seeing an average of 8 inches of rainfall.