condition mean min max 4 h after light 49.893864 48.844299 50.943429 8 h after light 55.059079499999996 50.105832 60.012327 12 h after light 50.224807999999996 46.289926 54.15969 4 h after dark 48.539823999999996 48.235349 48.844299 8 h after dark 52.957452 45.07389 60.841014 12 h after dark 37.751875 37.751875 37.751875