Lily didn't miss the cringe, but she didn't comment on it, either. The situation was what it was and she wasn't in a position to change it. Nor was Narcissa, though she imagined the woman would like to think otherwise.
Tilting her head to the side, Lily turned to start to walk toward the welcome center. "You just missed the unseasonable weather," she offered by way of making conversation. While she couldn't imagine the other witch would care ... it was something to talk about. It wasn't as though that freak snowstorm had written that it was the only unseasonable snowstorm ever; for all Lily know, they'd have one in the middle of every month. "It ... snowed," she explained awkwardly, glancing over to Narcissa before she fixed her eyes forward again.