condition mean min max 4 h after light 17.603 16.9558 18.2502 8 h after light 16.284950000000002 15.5226 17.0473 12 h after light 16.54915 15.0882 18.0101 4 h after dark 26.80555 23.7018 29.9093 8 h after dark 22.9797 22.3373 23.6221 12 h after dark 21.8769 20.7647 22.9891