I once went an entire Oct/Nov in northern Sweden seeing the sun only for maybe a couple of hours total per week because the weather was so dreary any time I was

I once went an entire Oct/Nov in northern Sweden seeing the sun only for maybe a couple of hours total per week because the weather was so dreary any time I was able to go outside during the day and given how short the days are in the winter. Some days, the moon provided more light (as you say, because of snow reflection) than the sun. Those can be some very depressing days ... weeks ... months.