condition mean min max 4 h after light 55.8 55.8 55.8 8 h after light 58.2 44.9 71.5 12 h after light 42.65 33.4 51.9 4 h after dark 73.75 64.2 83.3 8 h after dark 46.55 18.8 74.3 12 h after dark 83.35 58.2 108.5