At lunchtime, there was ice on the inside of the windshield. First time I had to use the ice scraper on the inside. Funny that.
Went out to Mahwah in the evening to pay my cable modem bill. By that time it was cold and the temperature hovered at around 1°F or so. The roads were reasonably clear although some snow had blown back onto Route 17 so there was a bit of slippage just before the Lake St intersection. But there were no serious problems in the area other than having to drive slowly because of the icy/snowy patches.