Weather is probably a major factor when you plan your trip to Tanana, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and June with an average temp of 56°F, while the coldest months are January and December with an average of -1°F. The snowiest months in Tanana are November, October, December, and January, with each month seeing an average of 20 inches of snowfall.