Yeah, thats cold. Worst one I went through was 93 hours of below zero temps in 1996. Duluth MN went 186 hours below zero that same year. This year we had 86 hours below zero. Nothing like a tv weather guy announcing "the high today is expected to reach -2". -24 (air temp) when I left for work one morning that week and the temp dropped to -26 before it began to rise again. With cold like that, you create your own windchill just walking. Its kinda weird how sound carries in the extreme cold, you can hear mice under the snow and other animals walking around in the woods. Trees pop like a gun has been shot, getting big cracks in them. The cracks usually heal up leaving a slight scar. Every person should experience -20 air temp at least once in their life.