Boy I'll agree with that.
One of the worst hikes I've ever taken in my life was to the top of Guadalupe Peak in June.....ick.
I did Guadalupe Peak last Thanksgiving and I was in El Paso in early December. It was cold and a little windy going up GP but warmer on top. EP had pleasant weather. I didn't think the city overall was that bad, just quite sleepy. I camped one night at Hueco Tanks State Park about 20 miles out of town and it was between 35 and 40 until the wind picked up and it got below freezing.