Snow fall like real estate and businesses can also depend on location, location, location.
Here in Alton, my house is about 150-200 ft above the lake level, and I have seen more than an inch or two difference between the amount of snow at the bay and at my house.
Also, if you look at the weather radar during a storm, and see where the heavier bands of snow are, you can also see where one area may get inches more snow than others out of the same storm.
That's why we gotta love weather...you just can't really figure it all out all of the time.
And CLA, love the website and your insight into weather. Keep it up.