condition mean min max 4 h after light 82.9 82.9 82.9 8 h after light 69.0 46.4 91.6 12 h after light 54.25 38.3 70.2 4 h after dark 38.5 25.0 52.0 8 h after dark 49.75 12.9 86.6 12 h after dark 80.45 54.0 106.9