First post here. I live in Virginia and have a simple question about elevation and temprature change. Currently I live at 2100 feet and there is a local mountain that at its highest is 4368 feet. Thats about a 2200 difference. My question is what conditions must be present for the most drastic of temp differences? Some days its only a couple of degrees difference, while other days it can be 10-15 degrees different. does it have to do with low and high pressure systems??