condition mean min max 4 h after light 12.8 12.8 12.8 8 h after light 57.7 30.9 84.5 12 h after light 42.35 10.7 74.0 4 h after dark 92.3 74.8 109.8 8 h after dark 62.25 61.6 62.9 12 h after dark 68.75 60.8 76.7