Interesting... Leadville is warmer than Minneapolis in the Winter..
Yes, because of wind drainage and lack of inversions/radiative cooling, Leadville is warmer in winter than many lower elevation cities in Colorado.
Maybell, 4300 feet lower than Leadville is as cold in winter:
So is the (4000 feet lower) Craig downtown or the Airport (Craig SW station is a bit warmer):
Places like Fraser, Gunnison and Taylor Park, even though lower are much colder in winter than Leadville:
Places with wind drainage, i.e. Leadville, which is on a slope, and valley bottoms such as Gunnison represent cold air pooling in the flat valley bottoms. This is reflected in the mountains and alpine areas as well. Places in the basin bottoms are sheltered by wind, but get much colder at night than the top of the peaks and the ridgetops. You will notice that in winter and at night, Gunnison and Taylor Park are even colder than the summit of Pikes Peak. On the other hand the windchill is much colder above timberline which more than offsets the slightly warmer night temeratures.
If you can find a sheltered place on a ridgetop (especially below timberline), they often make the best winter campsites. The sunsets and sunrises are spectacular, the nights are warmer, the views great and the sun hit the ridge in the morning hours before it hits the basin floors. If you are above timberline though, you don't want to camp on the ridges unless the weather is perfect. Either that or you have a bomb proof tent. Even one of my "bombproof" tents blew apart in a storm when I camped on top of a mountain once.