I was away at the office in Murrayville area for late morning / early afternoon, but I ballparked about 3†so that’s about right.
Oddly enough, neighborhood microclimates made a huge difference in that literally just on the north side of Hwy 1 in Walnut Grove, they had maybe 1†at most on grassy surfaces left this evening.
However, careful driving/walking late evening or tomorrow morning cuz it is a sheet of ice out there on any surface that hasn’t gotten a bunch of salt brine dumped on it!