condition mean min max 4 h after light 65.2 65.2 65.2 8 h after light 8.35 5.2 11.5 12 h after light 27.5 22.0 33.0 4 h after dark 73.45 62.4 84.5 8 h after dark 33.9 33.0 34.8 12 h after dark 68.95 61.9 76.0