Fake cold but very real in terms of heating costs.
It's the temperature it says it is. Below freezing. While at 1,500ft and the ski area base... those multi-million dollar homes aren't paying for that heat right now at 48 degrees. They made the right investment. Go for the hills where the nights are much warmer, in all seasons.
It's pretty wild how the valley bottom (living along the river bottom) sees such cold nighttime temperatures relative to the rest of the area. MVL with 30F at the time of this screen grab. Stagecoach Rd is generally around 1,000ft or higher to the west of RT 100 valley bottom. Those lowest few hundred feet "pay" for their location.