Years ago I would go on a ride(kind of a tough man/sled competition) with friends leave Friday morning be back Saturday evening would do the same area (lake of the woods MN) maybe change the loop a little but nearly 500 miles in 2 days. They do it same weekend every year and the one year it was -35F in the morning and -20F for the high we started with 18 cats and finished the loop with less than 10 lots of breakdowns at that temp. We cut across and skipped the 80 miles across the lake we usually do that year...not sure what the windchill would be at -35 and 100mph. Some of them still do it but I am in the burn more fuel and less miles out west crew now.