The answer is students do not line up outside every day. We have indoor line up procedures for days when it is raining or if it is below the district cut-off for being outside (≤ 0 °F actual temperature or windchill). Of course if it is questionable, I'll ask kids to line up inside. :-)
I hope this helps to know so that when it is raining outside, parents know your kids won't be getting wet in the morning. And when the snow starts flying, kids won't be outside when it is dangerously cold.
As a reminder, students can begin to line up at 8:35 AM - but please, not sooner than that.