condition mean min max 4 h after light 7.555669999999999 3.75584 11.3555 8 h after light 7.174004999999999 6.13348 8.21453 12 h after light 15.554549999999999 11.2364 19.8727 4 h after dark 34.72885 19.6422 49.8155 8 h after dark 22.04625 21.3271 22.7654 12 h after dark 33.4903 21.7574 45.2232