condition mean min max 4 h after light 22.2877 20.7872 23.7882 8 h after light 19.34095 16.9273 21.7546 12 h after light 19.46585 18.7942 20.1375 4 h after dark 29.441 28.2 30.682 8 h after dark 31.784149999999997 31.5104 32.0579 12 h after dark 29.70915 29.1438 30.2745