condition mean min max 4 h after light 31.4 31.4 31.4 8 h after light 60.65 28.5 92.8 12 h after light 65.1 48.0 82.2 4 h after dark 78.0 63.7 92.3 8 h after dark 77.35 66.2 88.5 12 h after dark 71.65 56.9 86.4