Two years ago in October I hit new snow on the Cassier Hwy both ways. I was going to Hyder Alaska and then returned home to Haines Alaska. I was down there for 1 week and there was two different storms through. It was up to 10 inches on the way back and the plow hadn't been through. The dually made it a little more difficult but it was safe enough. You just need to SLOW down and not expect to get long days of driving in. Also you need to make sure that places are open. Some places close around Sept 1 others will stay open all year. I pulled into gravel pits for the night. In Whitehorse Yukon my heater in the truck broke and the blower wouldn't go off when the truck was off. I had to find the fuse to make it stop. It was -5 F that night. I love traveling in the winter in the North. Sometimes it is easy and sometimes it is slow but never dull.