Hard to say. Different stories have different lengths and ending points. It could be at any point throughout the year depending on the plot and the creator's vision.
The update schedule for 'When the Wind Blows' comics can vary. Sometimes it's weekly, but it might also be less frequent depending on the creator's schedule and other factors.
Snow usually fell in Hangzhou between December and February. According to the data provided, heavy snow usually occurred between December and March, with the most in January. However, in recent years, the days of snow had become less and less, and the snow scene had become rare. Hangzhou's first snow had a wide range of dates. The earliest snow appeared on November 16th, and the latest snow would be delayed until mid-April. In general, the date of snow in Hangzhou depended on the weather conditions and weather forecast. There was no fixed time.