When to go?

If you are flying literally across the world for a ski trip, you got to make damn’ sure that you will squeeze what is squeezable out of every Japanese yen spent. When is the best chance to score the famous Hokkaido pow? The general rule says that best months are January and February, with slight indication on January. Skiers even coined the phrase „Japanuary” wich says it all. But is that 100% true?