We had our first, and hopefully only, appreciable snow of the year today. We got about 3.5 inches, give or take a little. That beats the 24 inches we had a year ago in a couple of days in February. Anyway, I'm walking from our lab to the plant today and encountered a bit of the "brown sugar" you mentioned. I'm thinking, there's no way I would ride in this mess, day or night.
I rode three hours on Saturday when the temperature was about 27oF and the windchill was around 16 or 17oF. The roads were dry, the sky was mostly sunny. I felt OK. Today, it was 28 to 34oF, the windchill was up around 22 or 23oF, and the sky was totally overcast. With all the snow/ice/sleet or whatever on the ground, it felt a lot colder than it did on Saturday, when it was actually colder.
My hat is off to you and tsl for riding daily in these conditions. You guys are a couple of tough hombres.