condition mean min max 0 h after light 44.40455 44.2689 44.5402 4 h after light 34.9958 33.8045 36.1871 8 h after light 47.138400000000004 47.0641 47.2127 4 h after dark 53.2579 51.6605 54.8553 8 h after dark 53.62205 52.4857 54.7584 12 h after dark 40.7389 38.3813 43.0965