In December, the weather in Novaya Lyalya is typically freezing. Average daily high temperature in December is about 11 degrees below zero. On average, Novaya Lyalya has 18 cloudy, 8 snowy, 3 sunny, and 2 partly cloudy days in December. The snowfalls are usually light. December as well as January, February, April, and September is considered the most uncomfortable time to visit Novaya Lyalya.