condition mean min max 4 h after light 57.0 57.0 57.0 8 h after light 16.9 8.8 25.0 12 h after light 38.2 28.7 47.7 4 h after dark 62.8 21.8 103.8 8 h after dark 72.4 58.1 86.7 12 h after dark 45.25 21.5 69.0