condition mean min max 4 h after light 11.767437000000001 11.656771 11.878103 8 h after light 12.988095 12.882651 13.093539 12 h after light 10.2666535 9.072578 11.460729 4 h after dark 11.656771 11.656771 11.656771 8 h after dark 12.812576 10.704898 14.920254 12 h after dark 10.829067 10.829067 10.829067