Haha! Well. Wyoming is known for being... Interesting. Two years ago, there was a record winter where for weeks on end the wind didn't stop gusting and it was in the negatives aaaall winter, people had heat never turning off.
Like many places, there are days that are in the teens, single digits, and sometimes negatives, but for the most part it's 20s-40s and above, with only a few short weeks having temps in the teens. But it's really important to note that even though it does get cold on the thermometer, it feels VERY different on the body because of how dry and sunny it is. You really don't feel it. A few weeks ago, I went out in 20s with a light coat while there was a steady wind, and wasn't actually cold. As long as the sun is out and you have something to break the wind, it's actually comfortable. It's really weird