December in Elko is the snowiest and the most freezing month of the year. In December, the weather in Elko is typically freezing. Average daily high temperature in December is about zero. On average, Elko has 11 partly cloudy, 9 sunny, 6 snowy, 4 cloudy, and 1 rainy day in December. The snowfalls are usually light. December as well as January, February, March, and April is considered the most uncomfortable time to visit Elko.