At our school, the rule used to be 35 degrees or lower. Now that we have a different principal, there is no rule. I was just told that if a child complains of being cold, I must give him/her the option of going inside to sit with a teacher during recess. My grade level team usually checks the wind-chill and checks to see how many students have brought coats, hats, gloves, etc. We make our decisions from there. So today it was 48 degrees. All children had coats, and many had hats, gloves, extra layers of clothing, etc. We went outside for about twelve minutes just to run around and get some energy out. A few kids chose to stay inside. No one on the playground complained of being cold. One of the teachers who had recess duty today was very upset that we went out. (She never complained until we were going inside.) I don't think it was too cold (for twelve minutes). With kids bundled up and running around, I thought all seemed just fine. Just curious. What are the rules at your school? Or do you just make decisions on a day-to-day basis? This is often a tough call to make.