I am curious to see a summary of how many we get crossing each season (late may to mid october). From these you could determine which of these produce snow which contribute to the ski season. These can further be categorised into the amount of snow they contribute. eg those that product less than 5cm, 5-10, 10-20, 20+ . I would not include fronts that deliver snow too early eg april or november. I know that there are other detailed posts on this topic but I would like to put a summary together.