condition mean min max 4 h after light 51.2 51.2 51.2 8 h after light 48.1 44.2 52.0 12 h after light 48.650000000000006 37.7 59.6 4 h after dark 43.599999999999994 38.3 48.9 8 h after dark 66.05 51.5 80.6 12 h after dark 58.8 51.0 66.6