Приметы 6 февраля
There are some old Russian national ethnosciences connected with February 6. If it's a sunny day - the spring will be good. In old times on February 6 people tried to guess future prices for grain. People baked bread, and then weighed it in the evening and the next morning. If in the morning bread heavier, it means grain would rise in price. If its weight remained the same, it was considered that the price woudn't change. And, of course, if its weight decreased, so bread would be cheap.