condition mean min max 4 h after light 13.00905 12.656 13.3621 8 h after light 23.5259 23.1282 23.9236 12 h after light 22.8109 22.0026 23.6192 4 h after dark 38.26485 36.3967 40.133 8 h after dark 20.287599999999998 19.6737 20.9015 12 h after dark 21.832900000000002 21.1476 22.5182