January in Bolshaya Oka is the most freezing month of the year. In January, the weather in Bolshaya Oka is typically freezing. Average daily high temperature in January is about 12 degrees below zero. On average, Bolshaya Oka has 19 cloudy, 8 snowy, 3 sunny, and 1 partly cloudy day in January. The snowfalls are usually light. January as well as February, April, September, and October is considered the most uncomfortable time to visit Bolshaya Oka.