Weather is probably a major factor when you plan your trip to Kotzebue, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually August and July with an average temp of 47°F, while the coldest months are January and February with an average of 3°F. The snowiest months in Kotzebue are February, October, November, and December, with each month seeing an average of 11 inches of snowfall.