January in Aniak is the sunniest and the most freezing month of the year. In January, the weather in Aniak is typically freezing. Average daily high temperature in January is about 12 degrees below zero. On average, Aniak has 13 cloudy, 8 partly cloudy, 6 sunny, and 4 snowy days in January. The snowfalls are usually light. January as well as February, March, April, and July is considered the most uncomfortable time to visit Aniak.