Weather is probably a major factor when you plan your trip to Buena Vista, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and August with an average temp of 58°F, while the coldest months are January and December with an average of 18°F. The snowiest months in Buena Vista are March, November, February, and January, with each month seeing an average of 13 inches of snowfall.