condition mean min max 3 h after light 42.3495 39.3698 46.2203 6 h after light 44.897 40.8108 49.7742 9 h after light 52.43176666666667 48.3231 58.3041 12 h after light 50.840725 28.135 64.1469 3 h after dark 53.4101 51.539 54.8707 6 h after dark 49.65853333333333 45.1656 54.0566 9 h after dark 40.2178 33.8001 44.2945 12 h after dark 22.8059 22.5334 23.0784