I can remember the only time they ever closed the school I went to was when there was a blizzard of about 36 inches (near a meter) with drifts up to the top of the school building. They closed the school for one day, cleaned up the sidewalks, driveways and parking lot and let the kids dig snow forts in the drifts. ONE Day and that was it. It was the only snow day we ever had in 12 years. It was glorious, though.