Airframe icing can be found year-round, depending on geography and altitude. In North America, we’re heading into the season when pilots of personal airplanes, which generally don’t fly high enough to worry about ice most of the year, need to factor it into their planning and execution. Even if you’re flying something with a form of ice protection more capable than a warm pitot tube.
One of the things about in-flight airframe icing is it’s relatively unpredictable: A single ice encounter that doesn’t present an operational hazard—a glazed windshield, for example—in no way implies the next one will be as benign.
