100 ft starts making a difference. For example, I took another look at my elevation, which is actually higher than I thought. About a 15 min walk from here, the elevation is 1850 ft (and it's deceptively flat so I thought mine was the same. It is posted on a sign at an old train depot. According to USGS, my elevation is actually about 1890 ft. My father-in-law's is at about 1835ft on the lower side of town. So there's not much difference here in 60 ft, but 150 ft is a very noticible. There's an unincorperated place 5 mins away on the mostly flat road but because they are 150 ft higher than my location, they will often have more snow on the ground and perhaps on the road too.