Yes, you have to be aware, and that's the key all of the time, but sometimes, I just won't take the risk. Just like I don't ride when it below a certain temperature.
Around the time I first started riding, my husband came home from a quick Saturday morning ride. He was taking a cool down lap around the cul-de-sac, which was at the bottom of a teeny hill when he wiped out on sand. He came home with a bloodied face and shoulder, torn jersey and shorts, and wrecked shifters, etc. This was at the end of April and in my old town, they never cleaned the streets until May 10th or so. We had to call the town many times in the following years and explain how unsafe these conditions were for cyclists (there are a lot of riders in this area).
But, I don't want them to stop sanding the roads. Even though I have a car with all wheel drive, I want everything possible to make conditions safe for driving in a storm. And around here, if you don't shovel your sidewalk, you get a fine.