condition mean min max 4 h after light 44.7 44.7 44.7 8 h after light 59.0 55.8 62.2 12 h after light 67.5 46.1 88.9 4 h after dark 39.65 19.8 59.5 8 h after dark 34.9 30.7 39.1 12 h after dark 54.85 41.5 68.2