condition mean min max 4 h after light 54.8 54.8 54.8 8 h after light 60.15 57.3 63.0 12 h after light 41.6 19.0 64.2 4 h after dark 61.599999999999994 58.4 64.8 8 h after dark 70.3 49.9 90.7 12 h after dark 67.75 57.7 77.8