condition mean min max 4 h after light 12.8 12.8 12.8 8 h after light 49.85 33.3 66.4 12 h after light 13.2 11.6 14.8 4 h after dark 12.25 10.2 14.3 8 h after dark 38.05 14.6 61.5 12 h after dark 12.0 7.4 16.6