condition mean min max 4 h after light 56.66225 51.4205 61.904 8 h after light 51.4006 49.3693 53.4319 12 h after light 55.9678 50.4499 61.4857 4 h after dark 123.873 123.813 123.933 8 h after dark 108.03550000000001 103.311 112.76 12 h after dark 90.52655 86.7815 94.2716