condition mean min max 4 h after light 15.371799500000002 12.752971 17.990628 8 h after light 14.313291 14.19615 14.430432 12 h after light 14.744012 14.430432 15.057592 4 h after dark 13.0796405 11.728849 14.430432 8 h after dark 14.67548 14.430432 14.920528 12 h after dark 14.460071 14.460071 14.460071