condition mean min max 4 h after light 54.1 54.1 54.1 8 h after light 74.25 44.9 103.6 12 h after light 56.3 25.1 87.5 4 h after dark 65.15 23.1 107.2 8 h after dark 64.5 46.7 82.3 12 h after dark 88.6 67.0 110.2