condition mean min max 4 h after light 22.19475 20.6409 23.7486 8 h after light 17.27545 17.0069 17.544 12 h after light 22.3134 20.9404 23.6864 4 h after dark 27.108249999999998 26.2059 28.0106 8 h after dark 28.2955 28.1079 28.4831 12 h after dark 28.55175 27.9072 29.1963