December in Ilek-Koshary is the snowiest and the windiest month of the year. In December, the weather in Ilek-Koshary is typically freezing. Average daily high temperature in December is about 1 degree below zero. On average, Ilek-Koshary has 19 snowy, 9 cloudy, 2 rainy, and 1 sunny day in December. The snowfalls are usually moderate.