condition mean min max 0 h after light 31.2765 31.2734 31.2796 4 h after light 16.1675 16.0618 16.2732 8 h after light 26.9717 26.1773 27.7661 4 h after dark 30.9512 24.6857 37.2167 8 h after dark 23.2929 23.1461 23.4397 12 h after dark 22.261499999999998 18.8415 25.6815