condition mean min max 4 h after light 49.17265 47.0164 51.3289 8 h after light 43.2218 42.5304 43.9132 12 h after light 49.5077 48.857 50.1584 4 h after dark 61.257400000000004 61.1897 61.3251 8 h after dark 58.618 57.6291 59.6069 12 h after dark 57.209 57.2077 57.2103