Reading Russian Fairy tales you can find that many of them have the analogs in Europe. It is happened because people travelled and very often folklore of one country was borrowed by another with some changes according to the local conditions.
Tale of Twelve Months is European tale that was translated into Russian by Soviet children write Samuel Marshak. But it has analog among Old Russian folk tales and this tale is "Grandfather Frost".
The same story of evil stepmother who sent her stepdaughter to the forest one frosty winter day. In European version the girl was ordered to find snowdrops at last day of December. Instead of "Grandfather Frost" she met there twelve brothers - twelve months of the year - sitting around bonfire. Brothers decided to help her and December replaced for one hour with April. Spring had come for one hour to the forest and stepdaughter fulfilled her stepmother's task.