condition mean min max 4 h after light 56.6195165 56.104169 57.134864 8 h after light 60.2423955 52.93742 67.547371 12 h after light 62.468809 61.943589 62.994029 4 h after dark 55.7742685 52.448398 59.100139 8 h after dark 48.3637765 45.956865 50.770688 12 h after dark 37.619604 37.619604 37.619604