The are I live in (the top 100 miles of ID) has the most sporadic weather I've ever seen or heard of. It changes every few miles and not always by elevation. Driving from here to sand point, it changes every 5 miles. There is an area just north of sand point that people call the snow belt of the snow belt
if sand point gets a foot, we get 8" and they get 18". Not always exactly obviously, but come spring they will have litteraly 2' on the ground when we are done and Sandpoint has patches in the shade. This is in a 30 mile stretch with little elevation change.
Last weekend it snowed most of the week end, but it was too warm to stick. Drive 2.5 miles to my work and there ended up being 3-4" of snow.