If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Kotzebue: 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.